Brand ?PHILTOP OEM Part Number ?15191020, 26112227, 26112229, 26112231, 8151179510, 8261122270, 8261122290, 20-990 Product Dimensions ?5.51 x 4.92 x 4.33 inches Manufacturer Part Number ?2959PSP236MUS Item Weight ?3.34 pounds Wide Compatibility: PHILTOP Power Steering Pump Fits for Rainier 2004-2007 4.2L, 5.3L, SSR 2004-2005, Trailblazer 2002-2009, 5.3L, 4.2L, Trailblazer EXT 2002-2006, Envoy 2002-2009 5.3L, 4.2L,, Envoy XL 2005-2006, Envoy XUV 2004-2005, Ascender 2007-2008, Bravada 2002-2004, 9-7x 2005-2009 5.3L, 4.2L Meets OE Standard: Our products comply with OE standards and are factory-fitted perfectly to the original model. OE Part Number: 15191020, 26112227, 26112229, 26112231, 8151179510, 8261122270, 8261122290 Why and when do you need to replace: A new Power Steering Pump can assist drivers in adjusting the direction of their vehicle, lowering the amount of power required to move the steering wheel and making drivers safer on the road. When you notice that your vehicle's wheels are not running smoothly, the steering wheel spins slowly or even stiffly, or the steering system makes a loud noise. Quiet Operation: Removes operating-related steering noise and improves the body's steering performance. provides more comfortable steering for drivers while they are on the road. Comfortable Experiences: Makes it easier and more stable for drivers to maneuver when they are more at ease. This significantly lessens tired driving Specification Fitment: Trailblazer 2002-2009Trailblazer EXT 2002-2006SSR 2004-2005Rainier 2004-2007Envoy XUV 2004-2005Envoy XL 2005-2006Envoy 2002-2009Bravada 2002-2004Ascender 2007-20089-7x 2005-2009 Part Number: 1519102026112227261122292611223815117951082611222708261122290 OE Number: 20-990 Replace it while Facing the following problems? Leakage Phenomenon Slow Wheel Response Steering Noise Difficult Operation Fitment