DNJ
DNJ Power Steering Pump 2002-2009 Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Saab 4.2L-6.0L
DNJ Power Steering Pump 2002-2009 Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, Saab 4.2L-6.0L
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- Tracking emailed when it ships
- Free fitment check before you order
Listed for: 2002–2009 Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile and SaabFitment notes & questions
Power Steering Pump from DNJ, listed for 2002–2009 Buick, Cadillac, Chevrolet, GMC, Isuzu and Oldsmobile with the 4.2L engine. A whine that changes with steering, a leak or heavy steering are common signs the pump is wearing out.
Quick facts
- Brand: DNJ
- Part type: Power steering pump
- Listed for: 2002–2009 Buick, Cadillac, Chevrolet, GMC, Isuzu and Oldsmobile
- Engine: 4.2L
- Part number: PSP1228
Listed fitment
- [2002-2009] GM, ISUZU, SAAB [w/o Reservoir] / L6, V8 / 4.2L, 5.3L / 256, 325 DOHC, OHV 16V, 24V [(LH6, LL8, LM4, LM7, VORTEC)]
Good to know
- Warranty terms: 12 month or 12,000 mile warranty whichever comes first. Warranty must be requested by the original purchaser and is limited to the replacement of the alleged defective part(s) only.
Tip: Bleed the air out of the system after installation by turning the wheel lock to lock with the engine running.

Before you order: Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile and Saab power steering pump fitment
The power steering pump supplies the fluid pressure that makes the steering light to turn.
Fitment notes
- Listed for: 2002–2009 Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile and Saab.
- Model years: 2002–2009. If your year sits at the edge of the range, check the details above.
- Engine: check the engine size listed against your vehicle's VIN or under-hood label.
- Specs, lead time and warranty come from DNJ and can change. The details above this guide are the latest we have.
Not sure it fits? Message us your vehicle details and we'll double-check fitment before you buy.
Ask about fitmentPlan the whole job
- Power steering fluid. Use the fluid type your vehicle calls for.
- Hoses. Old pressure and return hoses often leak.
More for your car: Buick Power Steering Pumps · Chevrolet Parts · All Power Steering Pumps · Suspension & steering