Keep steering input moving cleanly from the gearbox to the linkage with the Delphi Pitman Arm, part number TA2321. It fits many vehicles, among them the 1999-2006 Chevrolet Silverado 1500, 1999-2006 GMC Sierra 1500 and 1999-2004 Chevrolet Silverado 2500, as a direct-fit replacement for the listed applications. See the "Vehicles it fits" section for the full list.
A pitman arm mounts to the steering gear's output shaft and connects it to the steering linkage, turning the gear's rotation into the side-to-side movement that steers the wheels.
- OE expertise: Delphi's OE safety technology is fitted to millions of vehicles worldwide, and that OE know-how is applied to its aftermarket steering range.
- Tested to the extreme: Delphi tests its steering parts at temperatures below -40°C and above 120°C, exposes them to 720 hours of salt spray, and fatigue tests them.
- Compatibility analysis: Extensive dimensional and material analysis is aimed at the best possible compatibility between the original part and the aftermarket part.
- Anti-corrosion protection: Applied to each part to help prevent corrosion and improve appearance.
Signs a steering pitman arm may need replacing include excess play or looseness in the steering, wandering, clunking when turning, and uneven tire wear. These symptoms can have other causes, so inspect the steering gear and linkage first. If a worn pitman arm is the cause, the TA2321 replaces it.
Interchange: 620.66516
62066516 · 12471379 · 19168944 · PA6536 · PA6536RD · PA6536XL · K6536 · K6536HD · GK6536 · MK6536 · JPA161
This part cross-references / interchanges with the following part numbers:
620.66516, 12471379, 19168944, PA6536, PA6536RD, PA6536XL, K6536, K6536HD, GK6536, MK6536, JPA161
Frequently Asked Questions
Is the Delphi TA2321 a 1999-2006 Chevrolet Silverado 1500 pitman arm?
Yes. The 1999-2006 Chevrolet Silverado 1500 is one of the listed applications for this part. The "Vehicles it fits" section shows every other vehicle it fits.
Does it also fit the 1999-2006 GMC Sierra 1500 and the 1999-2004 Chevrolet Silverado 2500?
Yes, both are listed applications for the Delphi TA2321. See the "Vehicles it fits" section for the rest of the fitment.
What does a pitman arm do?
It connects the steering gear's output shaft to the steering linkage and turns the gear's rotation into the side-to-side movement that steers the wheels.
How does Delphi test its steering parts?
Delphi tests at temperatures below -40°C and above 120°C, applies 720 hours of salt spray, and fatigue tests its parts. Anti-corrosion protection is applied to each part.
What should I know when installing this pitman arm?
Removing the old arm usually needs a pitman arm puller. Follow the vehicle service information for torque values and whether the nut may be reused, and have the alignment checked afterward.
