BRAND NEW VACUUM PUMP
1999 - 2010 Ford F-250 through F-550 Super Duty
2000 - 2005 Excursion
2003 - 2005 Dodge Ram 5.9L Cummins
Fits 7.3L, 6.0L and 6.4L Powerstroke Diesels
What does this part do?
This electric vacuum pump operates the heater controls and four wheel drive front vacuum hubs on your Ford Diesel truck.
It operates the cruise control on Dodge trucks with the Cummins Diesel. (Note: If your Dodge is equipped with a jake brake, there will be a belt-driven vacuum pump which we also carry.)
What happens when it fails?
Fords: Your heater defaults to defrost only, and your four wheel drive may not engage if the pump does not run at all. Dodge: Intermittent or inoperative cruise control. The pump may also fail and run continuously - in this case, there may be a leak in the system which the vacuum pump can not keep up with, so it runs all the time. Disconnect the outlet hose and plug the connection on the pump with your finger. If the pump stops running there is a leak in the system - probably a broken line, etc. If the pump does not stop running when you perform this test, it is bad and needs replacement.
Does this pump fail often?
Yes, this is a very common failure item - Ford issued a TSB number 05-17-4 to advise their technicians of this issue.
Replaces Ford Part Numbers: 6C3Z2A451A, 6C3Z2A451BA, 4C3Z2A451BA, F81H-2A451-B, F81Z2A451BA, 7C34-2A451-BB
Is it easy to change?
Yes! Anybody with a few simple tools can do it! As easy as changing oil! On Ford 7.3L Powerstrokes the pump is located on the passenger's side inner fender between the battery and the blower motor. It is easy to get to. Just unbolt it, unplug the wiring, and carefully dismount the old pump from the rubber "feet" and mount the new electric diesel vacuum pump. Plug the wiring back in, and re-connect the vacuum hose to complete the procedure.
Can this electric vacuum pump can be used for other applications?
Yes! - vacuum control systems, science projects, etc. - It turns on when current is applied and generates a vacuum of about 17 in hg. It then shuts off until the vacuum falls to 13 in hg when the cycle repeats. It will NOT work to power a brake booster due to inadequate volume.
Please note that ALL Ford pickups up to F-550, as well as all Dodge pickups use the pump pictured above with the round electrical connector. Trucks larger than F550 and Motorhomes employ a similar pump with a different connector (with two exposed male spade terminals). If you are using the pump for a special application, the pump with exposed spade connectors is much easier to attach custom wiring to. Please be sure to select the correct one when ordering.