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OER 1999-07 Chevrolet Silverado, GMC Sierra GMT800 Truck, Power Steering Gear Box, 3.3 Turns, 33-Spline Sector P17589

OER 1999-07 Chevrolet Silverado, GMC Sierra GMT800 Truck, Power Steering Gear Box, 3.3 Turns, 33-Spline Sector P17589
$642.99 ea
NEWARRIVING SOONEstimated Ship Date 06/26/2025 (If Ordered Today)13 Available from OER as of 06/04/2025
Model: 4895073
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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1999-07 Chevrolet Silverado, GMC Sierra GMT800 Truck; Power Steering Gear Box; 3.3 Turns; 33-Spline Sector

Replace a non working or worn out gear box with this quality reproduction power steering gear box. This steering box contains no remanufactured parts. It features an all new main casting, sector shaft, and internals. Every box 100% tested for leaks, function, and performance. Replace that worn steering box with a brand new unit and experience the difference in steering handling and performance.

Specifications: 27-7589
  • 33-Spline Sector
  • Inlet Port Thread Diameter: M18-1.50
  • Input Shaft Diameter (IN): 0.568 Inch
  • Manual Or Power: Power
  • Mounting Hole Quantity: 3
  • Outlet Port Thread Diameter: M16-1.50
  • Output Shaft Diameter (IN): 1.25 Inch
  • Total Turns Lock To Lock: 3-1/4
Chevrolet Applications: Power Gear with 3-Bolt Housing, 33-Spline Sector
  • 2002-2006 Avalanche 2500
  • 2001-2001 Silverado 1500 - Base, LS, LT
  • 2002-2002 Silverado 1500 - Base, Custom, LS, LT, WT
  • 2003-2003 Silverado 1500 - Base, LS, LT, SS, WT
  • 2004-2004 Silverado 1500 - Base, Hybrid, LS, LT, SS, WT, Z71
  • 2005-2006 Silverado 1500 - Base, Hybrid, LS, LT, SS, WT
  • 2007-2007 Silverado 1500 Classic - Hybrid, LS, LT, SS, WT
  • 2002-2003 Silverado 1500 HD - 6.0L 364CID V8
  • 1999-1999 Silverado 2500 - Base, LS, LT
  • 2000-2010 Silverado 2500
  • 2001-2010 Silverado 2500 HD
  • 2007-2007 Silverado 2500 HD Classic - LS, LT, WT
  • 2001-2010 Silverado 3500
  • 2007-2007 Silverado 3500 Classic - LS, LT, WT
  • 2007-2010 Silverado 3500 HD
  • 2000-2010 Suburban 2500
GMC Applications: Power Gear with 3-Bolt Housing, 33-Spline Sector
  • 2001-2001 Sierra 1500 - C3, SL, SLE, SLT
  • 2002-2002 Sierra 1500 - Base, Denali, HT SL, SLE, SLT, WT
  • 2003-2003 Sierra 1500 - Base, Denali, SL, SLE, SLT, WT
  • 2004-2004 Sierra 1500 - Base, Denali, SLE, SLT, WT
  • 2005-2005 Sierra 1500 - Base, Denali, Hybrid, SLE, SLT, WT
  • 2006-2006 Sierra 1500 - Base, Denali, Hybrid, SL, SLE, SLT, WT
  • 2007-2007 Sierra 1500 - Base, Denali, Hybrid, SL, SLE, SLT, WT
  • 2002-2003 Sierra 1500 HD - 6.0L 364CID V8
  • 1999-2001 Sierra 2500 - SL, SLE, SLT
  • 2002-2002 Sierra 2500 - Base, SL, SLE, SLT
  • 2003-2004 Sierra 2500 - Base, SLE, SLT, WT
  • 2001-2010 Sierra 2500 HD
  • 2007-2007 Sierra 2500 HD Classic - SL, SLE, SLT, WT
  • 2001-2001 Sierra 3500 - SL, SLE, SLT
  • 2002-2002 Sierra 3500 - Base, SL, SLE, SLT
  • 2003-2003 Sierra 3500 - Base, SLE, SLT
  • 2004-2005 Sierra 3500 - Base, SLE, SLT, WT
  • 2006-2006 Sierra 3500 - SL, SLE, SLT, WT
  • 2007-2007 Sierra 3500 Classic - SL, SLE, SLT, WT
  • 2007-2010 Sierra 3500 HD
  • 2000-2006 Yukon XL 2500 - SLE, SLT
  • 2007-2010 Yukon XL 2500
Hummer Applications: Power Gear with 3-Bolt Housing, 33-Spline Sector
  • 2003-2007 H2
About OER

OER® was established in the early 1980's to manufacture original equipment reproductions where every part is meticulously reproduced to exact factory specifications. All OER® parts are reverse engineered or manufactured using original blueprints when available to ensure the closest possible reproduction available on the market. When available, original factory tooling is utilized to insure complete originality. Our mission is to supply the highest quality parts available for the enthusiast and serious restorer. Whether you're a serious restorer, or just someone who wants a replacement part for your classic vehicle, OER® is the source for the finest quality parts on the market. Today, OER® is the most recognized brand in automotive restoration parts. Choose OER® for all your restoration needs.

Many OER® products are officially licensed by General Motors and the Chrysler Group ensuring the quality and authenticity of these products. The GM Restoration Parts logo and the MOPAR Authentic Restoration Product logo are the true signs of quality. OER® is licensed by GM and the Chrysler Group as an official restoration parts manufacturer.

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years
Chevrolet Avalanche 1500 2002 - 2006
Chevrolet Avalanche 2500 2002 - 2006
Chevrolet Avalanche 2007 - 2010
Chevrolet Blazer 1999 - 2005
Chevrolet C1500 Suburban 1999
Chevrolet C1500 1999 - 2002
Chevrolet C2500 Suburban 1999
Chevrolet C2500 1999 - 2000
Chevrolet C3500 1999 - 2004
Chevrolet C35 1999 - 2000
Chevrolet Captiva Sport 2008 - 2010
Chevrolet Chevy Pickup 1999 - 2003
Chevrolet Cheyenne 2003 - 2010
Chevrolet Colorado 2004 - 2010
Chevrolet Equinox 2005 - 2010
Chevrolet K1500 Suburban 1999
Chevrolet K1500 1999
Chevrolet K2500 Suburban 1999
Chevrolet K2500 1999 - 2000
Chevrolet K3500 1999 - 2000
Chevrolet R15 2000 - 2001
Chevrolet S10 1999 - 2004
Chevrolet SSR 2003 - 2006
Chevrolet Silverado 1500 Classic 2007
Chevrolet Silverado 1500 HD Classic 2007
Chevrolet Silverado 1500 HD 2001 - 2006
Chevrolet Silverado 1500 1999 - 2010
Chevrolet Silverado 2500 HD Classic 2007
Chevrolet Silverado 2500 HD 2001 - 2010
Chevrolet Silverado 2500 1999 - 2010
Chevrolet Silverado 3500 Classic 2007
Chevrolet Silverado 3500 HD 2007 - 2010
Chevrolet Silverado 3500 2001 - 2010
Chevrolet Silverado 1999
Chevrolet Sonora 2000 - 2006
Chevrolet Suburban 1500 1999 - 2010
Chevrolet Suburban 2500 2000 - 2010
Chevrolet Tahoe 1999 - 2010
Chevrolet Tornado 2004 - 2010
Chevrolet Tracker 1999 - 2008
Chevrolet Trailblazer EXT 2002 - 2006
Chevrolet Trailblazer 2002 - 2009
Chevrolet Traverse 2009 - 2010
GMC Acadia 2007 - 2010
GMC C1500 Suburban 1999
GMC C1500 1999
GMC C2500 Suburban 1999
GMC C2500 1999 - 2000
GMC C3500 1999 - 2000
GMC Canyon 2004 - 2010
GMC Envoy XL 2002 - 2006
GMC Envoy XUV 2004 - 2005
GMC Envoy 2002 - 2009
GMC Jimmy 1999 - 2005
GMC K1500 Suburban 1999
GMC K1500 1999
GMC K2500 Suburban 1999
GMC K2500 1999 - 2000
GMC K3500 1999 - 2000
GMC Sierra 1500 Classic 2007
GMC Sierra 1500 HD Classic 2007
GMC Sierra 1500 HD 2001 - 2006
GMC Sierra 1500 1999 - 2010
GMC Sierra 2500 HD Classic 2007
GMC Sierra 2500 HD 2001 - 2010
GMC Sierra 2500 1999 - 2004
GMC Sierra 3500 Classic 2007
GMC Sierra 3500 HD 2007 - 2010
GMC Sierra 3500 2001 - 2006
GMC Sierra 2007 - 2010
GMC Sonoma 1999 - 2004
GMC Terrain 2010
GMC Yukon XL 1500 2000 - 2010
GMC Yukon XL 2500 2000 - 2010
GMC Yukon 1999 - 2010

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