Dorman 34299 A/C compressor by-pass pulley for the 2003-2008 Dodge Ram 1500 and other vehicles keeps the original drive belt in use while an inoperable A/C compressor is bypassed.
- Same mounting points as the A/C compressor
- Aluminum bracket with a plastic pulley
- Quality components chosen for a long service life
- Extensive testing for a quality fit and a long service life
Quick facts
- Part: Dorman 34299 A/C compressor by-pass pulley
- Fits: 2003-2008 Dodge Ram 1500 and other vehicles
- Material: aluminum bracket, plastic pulley
- Condition: New
This pulley suits a vehicle whose A/C compressor has failed, for instance one that is noisy or seized. Before choosing it, look the belt over with the engine off and cool and turn the compressor pulley by hand; a shop can run any test that needs the engine on. If the compressor is the cause, this pulley takes its place in the belt path.
Fits
Along with the 2003-2008 Dodge Ram 1500, this by-pass pulley fits the 2003-2008 Dodge Ram 2500 and the 2005-2006 Dodge Ram 4000, among other vehicles.
Specifications
Fit and size
- Outside diameter: 5.02 in
- Quantity per vehicle: 1
- Pulleys included: 1
- Compressor type: 10S17E
Build and materials
- Pulley type: Serpentine
- Material: aluminum bracket, plastic pulley
- Condition: New
- Country of origin: China
In the box
One bracket with one pulley; this listing holds one by-pass pulley and each vehicle takes one. Mounting hardware and installation instructions are not included, so plan on new bolts, since the old ones may not be reusable.
Interchange: 4710398 · 77398 · 78398 · TSN2538 · TSR2538 · 6511694 · CO10802C · KT4900 · KT4900A · KT6019 · KT6019A
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
4710398, 77398, 78398, TSN2538, TSR2538, 6511694, CO10802C, KT4900, KT4900A, KT6019, KT6019A
Frequently Asked Questions
Does the Dorman 34299 by-pass pulley fit the 2003-2008 Dodge Ram 2500?
Yes, Dorman 34299 is listed for the 2003-2008 Dodge Ram 2500. If your truck is not named in this answer, look it up in the "Vehicles it fits" section on this page.
Does this A/C by-pass pulley come with a bracket and bolts?
It includes one bracket and one pulley. Mounting hardware and installation instructions are not included, so plan on new bolts.
What is the outside diameter of the Dorman 34299 pulley?
Dorman 34299 measures 5.02 inches across the outside. It is a serpentine-type plastic pulley on an aluminum bracket.
Can I keep the factory drive belt after removing a failed A/C compressor?
Yes. This by-pass pulley retains the use of the standard drive belt once a failed A/C compressor is removed, and it uses the same mounting points as the compressor.
Will Dorman 34299 replace pulley number 77398?
Yes, 77398 is one of the numbers Dorman 34299 replaces. The other cross-reference numbers are on the Interchange line of this page.
