Duramax

- BRAND NEW - Fuel Injector Solenoid Fits: 2001 - 2004.5 Duramax LB7 Injector Solenoid or 2003 - 2007 Dodge / 5.9 Cummins Injector SolenoidIf your injector has a broken electrical stud or if the injection pump solenoid is shorted or open circuit, you do not have to replace the entire injector. This fuel injector solenoid is designed to easily replace your old one. Just loosen the retaining nut, lift the old solenoid off, set the new one on and re-tighten the nut to approximately 15 ft-lbs. Be...

LB7 Duramax CP3 Injection Pump - Fits 2001 - 2004.5 trucks - Our Premium Common Rail pumps for Chevy / GMC 6.6L LB7 Duramax are remanufactured in the United States of America to the highest quality standards by one of the most respected names in the diesel industry. Each Duramax CP3 injection pump is thoroughly tested before shipment and is backed by our full 1-year warranty. If your truck is is a 2004 please verify that the eighth digit of the VIN is a "1" before purchasing. Duramax CP3...

2001 - 2004 Duramax LB7 Injector Installation KitThis Duramax injector installation kit includes the following essential parts for replacing your injectors:16 External injector o-rings (2 for each injector)8 Tip washers8 joined banjo washer pairs for connecting return lines to each injector2 joined banjo washers for connecting the return line on each side to the head.This LB7 injector kit includes enough parts to install all 8 injectors. We also carry the lower valve cover gaskets which are...

LBZ Fuel Injector fits 2006 - early 2007 Duramax Diesel with LBZ Engine Genuine OEM Bosch LBZ injectors - remanufactured by Bosch (To verify that you are purchasing the correct Bosch fuel injector please check that the eighth digit of your VIN is a "D") Each LBZ Duramax injector comes with the body o-ring and copper tip gasket ready for installation. Also included is a sheet with the injector flow calibration number to be programmed into the PCM and glow plug control module at time of injector...

LLY Fuel Injector fits 2004.5 - 2005 Duramax Diesel with LLY Engine BRAND NEW Genuine OEM Bosch LLY Duramax Injector - NOT remanufactured (Please note that some 2004 Duramax engines use the LB7 engine and a different injector. To identify your engine, check the eight digit of the VIN - if you have an LLY engine, it will be a "2") Each Duramax LLY injector replacement comes with the body o-ring and copper tip gasket ready for installation. We also sell performance LLY injectors - see related...

2004.5 - 2010 Duramax Injector Kitworks for Duramax LBZ, LMM, & LLY injector replacementIncludes:(8) Copper Chamber / Tip Gaskets / Washers(8) Injector Body O-ringsThese parts are essential to replace every time your injectors are removed.Replace the following part numbers:Tip Gasket - Bosch: F00RJ01086, GM: 97327722O-ring - Bosch: F00E200099, GM: 94013303 ...

DURAMAXLLY LBZ and LMMInjector Return Rail KitINCLUDES:(3) 'T' return connectors(1) 90 degree return connector(4) Return connector O-rings(4) Return connector retaining clips (GM P/N 97359750)Return Line Hose sufficient for one sideThis Duramax fuel return line kit includes enough parts to service one side of the engine and works on either the left or right side. Purchase (2) fuel rail return line kits to service both sides (Discounted price of $52.95 for a pair.)Replaces the following GM Part...

DURAMAX LLY LBZ and LMM Injector Return Rail Kit with METAL FITTINGS INCLUDES: (6) 'T' return connectors(2) 90 degree return connector(8) Return connector O-rings(8) Return connector retaining clips (GM P/N 97359750)Return Line Hose Tired of plastic return fittings? This kit includes aluminum fittings - no more broken plastic fittings! This Duramax injector return line kit includes enough parts to service both sides of the engine. Replaces the following GM Part Numbers: 97328733 98062291...

- LB7 Duramax -Fuel Injection Line Setfits 2001 - 2004.5Injection line corrosion is a huge problem on the LB7 Duramax diesels - especially in northern states. Water tends to collect inside the nut at the injector end of the line causing rust to form. When the injection line is removed, the inlet of the injector becomes filled with rust particles. Many times when we receive core injectors back from our customers the injector inlet is completely blocked with rust. The greatest problem is that if...

Stanadyne Performance Formula - Stanadyne Diesel Fuel Additive Specially Formulated for ULSD - - Case of (12) One Pint Bottles - Why should I use Stanadyne diesel fuel additive? By now, almost everyone has heard of ULSD (Ultra Low Sulfur Diesel). The previous generation of fuel was termed LSD or Low Sulfur Diesel. While LSD could contain up to 500 PPM (parts per million), ULSD can contain up to a maximum of 15 PPM of sulfur. The reduction in sulfur was for a good cause - the pursuit of cleaner...

AccurateDiesel.com Bumper Sticker Be one of an elite group to have your very own AccurateDiesel.com bumper sticker! We will send you one for (almost) free - since producing them and mailing them does cost us a fair amount of money, we would like to ask that you request when ordering another item to save us on shipping and that you agree to post it where people will see it. We will also include (5) business cards with each bumper sticker. Please pass them along to (5) friends or acquaintances...

DIESEL Aluminum Anti-Drainback Valve Three sizes available: 8mm / 5/16 in Fuel Line 10mm / 3/8 in and 12mm / 1/2 inch for heavy duty applications Many older diesels develop drain-back issues over time that result in difficult starting after sitting for awhile because tiny leaks in the fuel system allow the fuel to drain back to the tank while the vehicle is not in use. Finding and fixing the root cause can be very time consuming and expensive. In some cases, a more expedient solution is to...

NOTE: While these valves are currently out of stock due to the virus situation, we do have the aluminum series valves in stock - see related items below.DIESEL Anti-Drainback Valve Two sizes available: 8mm / 5/16 in Fuel Line OR 10mm / 3/8 in Many older diesels develop drain-back issues over time that result in difficult starting after sitting for awhile because tiny leaks in the fuel system allow the fuel to drain back to the tank while the vehicle is not in use. Finding and fixing the root...

Diesel Tech Magazine Get a Free Copy! One of our favorite magazines! The folks at Diesel Tech magazine never fail to come out with interesting articles that make us want to drop what we are doing and read the latest edition! The month's issue looks like one of the best yet. I can't wait to read the 2017 Diesel Truck Preview. There is also an article on Page 40 titled, "Is your CP4 pump a ticking time bomb?" 6.7L Powerstroke owners need to read this article and then purchase one of our CP4...

DuramaxInjector Block-Off Tool KITfits2001 - 2016 Chevy / GMC DuramaxAre you the local Duramax expert? Be prepared for any Dmax that rolls in the door with this three-piece injector block off tool kit. - The cap on the left fits 2001 - 2005 LB7 and LLY- The middle cap fits 2006 - 2010 LBZ and LMM- The cap on the right fits 2011 - 2016 LML and LGHINJECTOR BLOCK OFF TOOL NOTE: The LB7 cap will also work on 2003 - 2007 5.9L Cummins. The LBZ/LMM cap will also work on 2007 - 2017 6.7L Cummins...

BRAND NEWDuramax DieselVGT SOLENOIDfitsGM / Chevy / GMC2004.5 - 2016 Duramax (LLY, LBZ, LMM, and LML)2004 - 2009 Topkick and Kodiak 4500 - 8500 (6.6L and 7.8L)Note to 2004 owners only: This Duramax VGT solenoid actuator will only fit late 2004 models equipped with the LLY engine. To ensure that you have the LLY engine, please verify that the eighth digit of your VIN is a "2".Garrett's variable geometry turbocharger allows one turbo to effectively take the place of two. At low RPM's the vanes...

LB7 Duramax - Glow Plug Super Kit - Includes:(8) Premium Dual-Coil USA Glow Plugs(2) Glow Plug Straps (1) Glow Plug / Air Intake Heater Relay LB7 Duramax Starting hard? Maybe it's time to make the whole glow plug system new again - we make it easy with our super kit - everything you need in one purchase!For 2001 - 2004 LB7 Chevy / GMC Duramax(FEDERAL EMISSIONS ONLY - WILL NOT FIT CALIFORNIA MODELS)If you have a 2004 Duramax you will need to verify if it is an LB7 or LLY. If the eighth digit of...

LB7 Duramax Injector Fuel Return Banjo Bolts Brand new complete set of eight. These LB7 banjo bolts connect the fuel return rail under the valve cover to the fuel injectors. The allen head has a tendency to strip out during removal as in the picture below. Note the plier marks around the exterior where our customer was forced to use vise grips during removal. Re-using a stripped or partially stripped bolt is dangerous because if proper torque is not achieved an internal fuel leak will develop...

LB7 / LLY Duramax FICM Banjo Washer Set fits 2001 - 2005 LB7 and LLY Duramax route the fuel lines to the engine through the Fuel Injection Control Module (FICM) for cooling purposes. Anytime the lines are removed (such as when replacing injectors) the washers should be replaced to prevent fuel leaks. The factory uses a joined upper/lower washer for installation convenience, but they are bare steel. Our rubberized fuel injector washers create a more reliable seal. Our kit includes (4) washers...

Duramax LB7 LLY LBZ LMM - CP3 Repair Kit - PROFESSIONAL GRADE Duramax CP3 Rebuild Seal Kit Includes:  All internal o-ringsDrive-shaft lip seals (2)Transfer pump lip sealCheckballs (3)Brass sealing washers (2)Protective caps (3) While CP3 repair is not usually considered a "DIY" project, sometimes minor issues such as a leak can be corrected in the field. For more major concerns additional hard parts, special tools, and test equipment will be required for a complete repair. We also stock...

DURAMAX FCA / MPROP Connector Pigtail Fits 2001 - 2016 LB7 LLY LBZ LMM LML and LGH The fuel pressure regulator mounted to the back of the Chevy /GMC CP3 pump goes by a variety of names including:MPROPFCAInjection Pressure RegulatorFuel Pressure RegulatorFuel Control ActuatorMeasuring Unit Regardless of the name, this is the pigtail / mating connector for it!  We specifically remember one truck that had some odd intermittent issues. We finally found that if we reached down and touched the...

DURAMAX LB7 LLY LBZ LMM MPROP / FCA Seal Kit Fits 2001 - 2010 This o-ring kit consists of the (2) o-rings that fit the Fuel Injection Pressure regulator attached to the rear of the CP3 Pump by (3) T-25 Torx head screws. This part is called by many names including: MPROPFCAInjection Pressure RegulatorFuel Pressure RegulatorFuel Control ActuatorMeasuring Unit The function of the injector pressure regulator is to control the output pressure of the high pressure CP3 fuel pump. Anytime the MPROP is...

LB7 DuramaxLower LB7 Duramax Valve Cover Bolt Set Complete Set for BOTH Sides fits 2001 - 2004.5 LB7 Duramax Diesel Valve Cover bolts incorporate an Allen head and are notorious for rounding out during the removal process. It is advisable to void re-using partially stripped hardware which will only make the process that much more difficult the next time around! Our lower valve cover / rocker box bolts incorporate an external hex head which is much stronger and less likely to strip plus being...

LB7 Duramax Upper Valve Cover Bolt Set Complete Set for BOTH Sides fits 2001 - 2004.5 LB7 Duramax Diesel Valve Cover bolts incorporate an Allen head and are notorious for rounding out during the removal process. It is advisable to void re-using partially stripped hardware which will only make the process that much more difficult the next time around! We also offer a complete set of Upper and Lower Duramax valve cover bolts - see related items below. ...

LB7 Duramax Valve Cover Bolt Set Upper and Lower Complete Set for BOTH Sides fits 2001 - 2004.5 LB7 Duramax Valve Cover bolts incorporate an Allen head and are notorious for rounding out during the removal process. It is advisable to void re-using partially stripped hardware which will only make the process that much more difficult the next time around! Our lower rocker box / valve cover bolt set incorporates an external hex head which is much stronger and less likely to strip plus being...

Duramax Diesel Lower Valve Cover Gasket SET- for all 2001 to 2004 models -These high-quality LB7 valve cover gasket sets are an essential item when changing injectors.Add injector installation kit below and have everything needed to install your injectors.

OEM Bosch LBZ / LMM 6.6L CP3 Injection Pump Remanufactured by Bosch - Fits 2006 - 2010 trucks - NOT an Aftermarket Reman! Before purchasing this LBZ CP3 injection pump, please verify that the eighth digit of your VIN is either a "D" or a "6". Includes the O-ring that fits between the CP3 Pump and the flange adapter and the large o-ring that fits between the flange adapter and the engine. Also includes the MPROP / FCA Fuel Pressure Regulator as pictured. Please note that a $250 core charge will...

GENUINE S&S Diesel Motorsport LBZ Duramax Diesel Injectors - Available in NEW or Remanufactured - Torquemaster, 60 HP, 100 HP, and Larger! For those customers who are seeking the very best performance injectors on the market, we are pleased to offer genuine S&S Diesel Motorsport Fuel Injectors. S&S is in a unique class at the top of the industry for their integrity and commitment to doing things right. When second best will not do, chose #SSfueled - Incorporating all of the most recent updates...

DURAMAXLLY GLOW PLUG SETFITS2004.5 - 2005Attention LLY owners - many glow plugs being sold online for the LLY Duramax application are NOT the correct part. While most are dimensionally correct and will physically fit, you will likely find yourself with a truck that starts harder than before you changed the glow plugs. If the glow plugs you are being offered at a lower price elsewhere are advertised as also fitting the LB7 application, do not buy them. The LB7 and LLY glow plugs have different...

DURAMAX Injector Connector Pigtail Fits 2004.5 - 2010  LLY LBZ and LMM The wiring connector at the injector is a common source of issues on the LLY, LBZ, and LMM Duramax engines with injectors #2 and #7 being the most likely to cause problems and set injector circuit codes, possibly even triggering limp-in mode. Many injectors have been needlessly replaced over the years when the true source of the problem was a poor connection that could have easily been remedied with a new Duramax...

GENUINE S&S Diesel Motorsport LLY Duramax Diesel Injectors - Available in NEW or Remanufactured - Torquemaster, 60 HP, 100 HP, and Larger! For those customers who are seeking the very best performance injectors on the market, we are pleased to offer genuine S&S Diesel Motorsport Fuel Injectors. S&S is in a unique class at the top of the industry for their integrity and commitment to doing things right. When second best will not do, chose #SSfueled - Incorporating all of the most recent updates...

LML / LGHDURAMAX DIESELInjector Return FittingFits:2011 - 2016 6.6L DuramaxNote: This listing is for (1) Fitting, (1) Foot of hose, and clamps. Three fittings are shown above. You will need to select the fitting you need from the options below when purchasing.Were you replacing an injector and accidentally broke a fuel injector return line connector? It is very easy to do as they are plastic and when they get full of grit and grime can be very challenging to release. In the past, your only...

LML Duramax DEF Fluid Heater (includes tank nut, tank seal and hardware kit) Fits 2010 - 2012 Chevy / GMC Commonly called the "DEF Heater", the diesel exhaust fluid heater is located in the DEF (Diesel Exhaust Fluid / Urea) tank and actually contains the pickup tube for the reductant pump module, an electric heating element, a temperature sensor, a pressure sensor, and an electrode-type level sensor. GM terms the whole unit the "reservoir kit, emission reduction fluid tank". Due to EPA...

LMM Fuel Injector fits2007.5 - 2010 Duramax Diesel with LMM EngineGenuine OEM Bosch LMM Duramax Injectors - remanufactured by Bosch. There is no better Duramax injector replacement.(To verify that these are the correct injectors for your truck, check the eight digit of the VIN - if you have an LMM engine, it will be a "6")Each replacement LMM injector comes with the body O-ring and copper tip gasket, ready for installation.Part Numbers: 0445120082, 0986435520, 98002368, 8-98002-368-4LMM...

GENUINE S&S Diesel Motorsport LMM Duramax Diesel Injectors - Available in NEW or Remanufactured - Torquemaster, 60 HP, 100 HP, and Larger! For those customers who are seeking the very best performance injectors on the market, we are pleased to offer genuine S&S Diesel Motorsport Fuel Injectors. S&S is in a unique class at the top of the industry for their integrity and commitment to doing things right. When second best will not do, chose #SSfueled - Incorporating all of the most recent updates...

BRAND NEW DURAMAX LLY LBZ LMM LML Turbo Vane Position Sensorfits 2004.5 - 2016 This sensor is a common weak point on the Duramax engines. When it fails the engine computer is no longer able to keep track of the position of the variable geometry turbo. Depending on which position the turbo vanes are stuck in, you may experience low power either at the low or high end of the RPM range. Black smoke and turbo position sensor codes are other common symptoms. However, it is highly advised to pursue...

VGT SOLENOID / ACTUATOR PIGTAIL Fits LLY, LBZ, and LMM Duramax (2004 - 5 - 2010) Due to the high-heat location of the VGT solenoid location, the integrity of the VGT connector is often compromised over time leading to turbo codes and incorrect boost levels This VGT solenoid pigtail is unique as compared to most on the market in that it uses OEM terminals - most VGT pigtails use an aftermarket / import terminal and if you look at them closely you will see they are very misshapen. Genuine OEM...

Premium Diesel Glow Plugs Made in the USA Chevy / GMC LB7 2001 - 2004 Duramax glow plugs Note: These glow plugs will fit all 2001 - 2004.5 Duramax trucks. If you have a 2004 Duramax you will need to verify if it is an LB7 or LLY. If the eighth digit of the VIN is a "1" then you have an LB7 and these plugs will fit. They will NOT fit 2004.5 and later Duramax. . If you need the later plug please see 'related items' below. Our Chevy / GMC LB7 glow plugs are the only ones manufactured in the USA -...

Premium Diesel Glow Plugs Made in the USA - For 2006 - 2016 LLY, LBZ, LMM, and LML Chevy / GMC Duramax -These glow plugs will NOT fit 2005 and earlier LLY Duramax - they only fit "second generation" (2006 and later) LLY's. For the earlier glow plug, please see "related items" below. Domestically made - Our LML, LLY, LMM, and LBZ Duramax glow plugs are the only ones manufactured in the USA - any other brand you purchase is made in another country - support American workers! OEM Quality -...

BRAND NEW Chevy / GMC - 6.5L / Duramax Our Chevy / Duramax / GM 6.5 vacuum pumps are not rebuilt or aftermarket reproductions. They are brand new from the Original Equipment Manufacturer - the highest quality available - at a fraction of the dealer cost! This GM 6.5 vacuum pump fits the following applications: -GM 6.5 L diesel trucks (including H1 Hummer) from 1996 to 2004. -GM 6.5L Vans 1996 and newer -Duramax 2001 - 2004 (California Models) Part number 6549 replaces OE 12556549 and 89017558...

Injector Block-Off Tool fits2007 - 2018 6.7L Dodge / CumminsAND2006 - 2010 Duramax (LBZ and LMM) REPLACES:Miller 9864This 6.7 Cummins injector block-off tool is a 'must have' for anyone who works on Cummins or Duramax common rail fuel systems. When a common rail engine will not start, the very first thing to check is fuel rail pressure. If the pressure is less than 4,000 PSI on a 6.7L, or 2,500 PSI on a Duramax, one of the most likely causes is a defective injector that is returning excess...

Injector Block-Off Toolfits2003 - 2007 5.9L Dodge / CumminsAND2001 - 2005 Duramax (LB7 and LLY)REPLACES:Miller 9011 / GM EN-47589-1This injector block-off tool is a 'must have' for anyone who works on Cummins or Duramax common rail fuel systems.When a common rail engine will not start, the very first thing to check is fuel rail pressure. If the pressure is less than 5,000 PSI on a 5.9L, or 2,500 PSI on an LB7, one of the most likely causes is a defective injector that is returning excess fuel...

Injector Block-Off Toolfits2011 - 2016 Duramax (LML and LGH)This tool is a "must have" for anyone who works on Duramax LML/LGH common rail fuel systems. When a Duramax common rail engine will not start, the very first thing to check is fuel rail pressure. If the pressure is less than 1,888 PSI one possible cause is a defective injector that is returning excess fuel back to the tank. A return flow volume test will verify if excessive return flow is the problem. This cap is then used to identify...

USED Injection Pump Drive Gear2001 - 2004.5 LB7 / LLY DuramaxIN EXCELLENT CONDITIONGM Part Number 97226128

DURAMAX LB7 (2001 - 2004) Premium Dual Coil Glow Plug Kit Includes: (8) Dual Coil Glow Plugs(2) Glow Plug Straps If you are planning to change the glow plugs in your Duramax, it is quite common that you will also need the glow plug straps, especially if you live in the northern states where salt often causes them to rust to the point of total breakage. Corroded straps will cause poor connections and reduced current carrying capacity resulting in hard starting. Be sure you are prepared by...

Duramax LB7 Injector Cap Set (Complete set for 8 Injectors) Fits 2001 - 2004 LB7 Includes the following: (8) Inlet Connector Caps (8) Tip / Nozzle Protector Caps (8) Return port plugs Dirt / Contamination is THE # 1 Enemy of the common rail injector. Very few people understand how extremely sensitive common rail injectors are to contamination! One tiny spec of dirt can render a $250 brand new injector immediately useless! Any time an injector is removed, or the injection lines are...

BRAND NEWDURAMAX LB7GLOW PLUG / AIR INTAKE HEATER RELAY ASSEMBLY FITS2001 - 2004.5 LB7 Chevy / GMC Duramax Diesel(2500, 3500, 4500, 5500, Topkick and Kodiak)NOTE: LB7 glow plug relay fits Federal Emissions (RPO Code NF2) Trucks ONLY - will not fit trucks with California Emissions package.Replaces GM Part Number:97371491We also stock Premium USA-Made Dual Coil glow plugs, Glow Plug buss bars, and glow plug kits to get your LB7 starting like new again! ...

LB7 Duramax Injector Brand NEW or Remanufactured - with one year unlimited mileage warranty -fits2001 - 2004 Chevy / GMC Duramax Diesel with LB7 Engine Option 1 $205 plus Core Premium Remanufactured Bosch LB7 Injector- Original Equipment Bosch LB7 injectors that have been independently remanufactured to the highest standards - New control valve assembly with hard chrome ball seat and new nozzle tip on every injector- Not just repaired - Remanufactured using the latest techniques and upgrades-...

GENUINE S&S Diesel Motorsport LB7 Duramax Diesel Injectors - Available in NEW or Remanufactured - Torquemaster, 60 HP SAC, 100 HP, and Larger! For those customers who are seeking the very best performance injectors on the market, we are pleased to offer genuine S&S Diesel Motorsport Fuel Injectors. S&S is in a unique class at the top of the industry for their integrity and commitment to doing things right. When second best will not do, chose #SSfueled - Incorporating all of the most recent...

LB7 Duramax S&S Diesel Motorsports SAC00™ Injectors S&S Diesel Motorsport, the leaders in common-rail diesel injection, have revolutionized the LB7 Duramax aftermarket with their new SAC00™ fuel injectors. The S&S Diesel Motorsport SAC00™ injectors are a game-changer for LB7 Duramax owners who want increased durability without an increase in fueling. S&S has teamed up directly with Bosch to develop a stock-flowing LB7 SAC nozzle to replace the obsolete VCO nozzle that is currently used on...

NEW- Genuine OEM Bosch - LB7 Duramax Injection Pressure RegulatorFITS2001 - 2004.5 2004 owners, please note - your truck could be an LB7, or an LLY. To verify that you have an LB7, please note that the eighth digit of your VIN should be a '1'.This part is called by many names including:MPROPFCAInjection Pressure RegulatorFuel Pressure RegulatorFuel Control ActuatorMeasuring UnitThe function of the LB7 Duramax fuel pressure regulator for fuel injection is to control the output pressure of the...

USED Injection Pump Drive Gear2005 - 2010LBZ / LMM DuramaxIN EXCELLENT CONDITIONGM Part Number97372516

NEW - LLY Duramax - Fuel Injection Line Set fits 2004.5 - 2005Prevent fuel leaks or contamination of new injectors caused by re-using rusty or pitted fuel injection lines with a set of our brand new lines at a fraction of GM dealer price! At this price you can afford to do it right and replace the whole fuel injection fuel line set rather than just replacing a failed line.NOTE: To verify that these lines will fit your truck please ensure that the eighth digit of your VIN is a "2". Replaces the...

USED Injection Pump Drive Gear2011 - 2016LML / LGH DuramaxIN EXCELLENT CONDITIONGM Part Number12629463

BRAND NEW- Genuine OEM - LML / LGH Injector Return Line AssemblyFITS:2011 - 2016 LML / LGH DuramaxIf your LML / LGH Duramax will not start, one of the early things to check is the fuel injector return line pressure which must be a minimum of 3 Bar (44 PSI). If the pressure is low and there are no leaks in the fuel return hose assembly, the most likely cause is the return line pressure regulator which is part of the return hose assembly. The piezo injectors utilized in these engines require...

LML / LGH Duramax Diesel(2011 - 2016)Injector Return Line Plug(Replaces GM CH-50377 / CH50377-A)An Essential Tool for diagnosing low rail pressureIn the event of a rail pressure control issue (typically low rail pressure) on an LML or LGH Duramax, GM test procedure specifies that an injector return line plug (GM special tool # CH-50377) be used as part of the diagnostic process. One possible cause of low rail pressure is an injector that is returning too much fuel back to the return rail and...

2011 - 2016 Duramax LML / LGH Injector Installation Kit Includes:(8) Copper Chamber / Tip Gaskets / Washers(8) Injector Body O-rings (8) Return line Fitting Orings These hard-to-find parts are essential to replace every time your injectors are removed.Replace the following part numbers:19256465

LML / LGH Duramax Return Line Pressure Test Adapter Fits 2011 - 2016 LML / LGH Duramax Diesels are equipped with Piezo injectors which require back pressure on the return side in order to function properly. In order to create this back pressure, the return line assembly is equipped with a return pressure regulator designed to maintain between 4 and 11 bar (58 - 160 PSI) in the system. Failure of the return pressure regulator can create a hard-start or no-start scenario as well as a myriad of...

BRAND NEW Duramax LLY CP3 Injection Pump GENUINE OEM BOSCH - Fits 2004.5 - 2005 trucks - Before purchasing this Duramax injection pump, please verify that the eighth digit of your VIN is a "2" Includes the O-ring that fits between the CP3 Pump and the flange adapter and the large o-ring that fits between the flange adapter and the engine. Also includes the MPROP / FCA Fuel Pressure Regulator as pictured. Please note that a $250 core charge will be added to each order. This amount is fully...