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Chevrolet/GMC Sierra 1500/Sierra 1500 Classic/Sierra 2500/Sierra 2500 HD/Sierra 2500 HD Classic/Sierra 3500/Sierra 3500 Classic/Silverado 2500 HD/Silverado 2500 HD Classic/Silverado 3500/Silverado 3500 Classic 12243 Base - GM1163104

GMC Sierra 1500 Rear Passenger Side Bumper Support Base - GM1163104

$1,299.99
$1,299.99

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Not sure what part quality really means?

Don’t worry — we’ll help you choose with confidence.

The best value for everyday repairs.

If you’re looking for a reliable replacement that gets the job done without overspending, this is your go-to.
  1. Save More: A cost-effective option that still delivers dependable performance.
  2. Good Fit: Designed to meet OEM specs for easy installation and a solid finish.
  3. Everyday Dependability: Perfect for standard repairs and routine driving.
  4. Smart Choice: Great performance without the premium price tag.
Best for: Budget-minded customers who want quality and reliability.

OEM-level quality — without the OEM price.

CAPA parts are independently certified to meet or exceed OEM standards, giving you top performance and a perfect fit at a lower cost.
  1. Certified Quality: Every part is tested for durability and performance.
  2. Exact Fit: Engineered for your specific vehicle, just like OEM.
  3. Safety Assured: Rigorously inspected for strength and long-term reliability.
  4. High Value: Premium results, mid-range price — our most popular choice.
Best for: Drivers who want OEM quality and long-term peace of mind, for less.

The original — built by your vehicle’s manufacturer.

OEM parts offer factory-perfect fit and finish, made to the same exact standards as your car’s original parts.
  1. Perfect Fit: Made specifically for your make and model — no guesswork.
  2. Premium Materials: Crafted for durability, precision, and performance.
  3. Factory Standard: Meets the same safety and quality benchmarks your vehicle was built with.
Best for: Drivers who want the absolute best match and factory-fresh performance.
$176.38
$176.38

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GMC Sierra 1500 Rear Passenger Side Bumper Support Base - GM1163104

Product details

Reference

Fitment Data

MakeModelYearNotes
CHEVROLETSILVERADO 2500 HD2001-2005Base
CHEVROLETSILVERADO 2500 HD2001-2006Ls
CHEVROLETSILVERADO 2500 HD2001-2006Lt
CHEVROLETSILVERADO 2500 HD CLASSIC2007Ls
CHEVROLETSILVERADO 2500 HD CLASSIC2007Lt
CHEVROLETSILVERADO 35002001-2006Base
CHEVROLETSILVERADO 35002001-2006Ls
CHEVROLETSILVERADO 35002001-2006Lt
CHEVROLETSILVERADO 3500 CLASSIC2007Ls
CHEVROLETSILVERADO 3500 CLASSIC2007Lt
GMCSIERRA 15001999-2006
GMCSIERRA 1500 CLASSIC2007
GMCSIERRA 25001999-2004
GMCSIERRA 2500 HD2001-2006
GMCSIERRA 2500 HD CLASSIC2007
GMCSIERRA 35002001-2006
GMCSIERRA 3500 CLASSIC2007
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