HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsDorman 300-141 Power Steering Pump Pulley
Part #: 300-141

Dorman 300-141 Power Steering Pump Pulley

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⚙️ 32 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, and Isuzu, Colorado, Canyon, i-290, i-370, i-280, and i-350
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Overview of Dorman Power Steering Pump Pulley 300-141

The Dorman 300-141 power steering pump pulley is designed for reliable performance in select Chevrolet, GMC, and Isuzu vehicles. Engineered with durable steel and a black finish, this pulley supports serpentine belt systems on models like the Chevrolet Colorado and GMC Canyon.

  • Constructed from sturdy steel material for durability
  • Black color finish for corrosion resistance
  • Six grooves to accommodate serpentine belts
  • Outside diameter measures 5.94 inches for precise fit
  • Single mounting hole for secure installation
  • Compatible with power steering systems on Chevrolet, GMC, and Isuzu trucks
  • Standard replacement grade for dependable operation

Detailed Product Description

The Dorman 300-141 power steering pump pulley is a standard replacement component crafted from steel to ensure long-lasting strength and resistance to wear. Its black coating helps protect against rust and environmental damage. Featuring six grooves, this pulley is designed specifically for serpentine belt applications, providing smooth and consistent belt engagement. The 5.94-inch outside diameter and 0.39-inch pulley bore are engineered to match OEM specifications for proper alignment and function. With one mounting hole, the pulley installs securely onto the power steering pump shaft without included hardware or installation instructions, making it suitable for experienced technicians familiar with these vehicle models.

Compatible Vehicles and Applications

This power steering pump pulley is compatible with various Chevrolet, GMC, and Isuzu models, including:

  • Chevrolet Colorado
  • GMC Canyon
  • Isuzu i-280, i-290, i-350, and i-370

It is designed to replace worn or damaged pulleys in these vehicles’ power steering systems, ensuring proper belt tension and steering performance.

Common Issues Addressed by This Pulley

  • Worn or damaged pulley grooves causing belt slippage
  • Corroded or rusted pulley surfaces affecting belt alignment
  • Excessive pulley wobble leading to steering pump noise
  • Broken or cracked pulley compromising power steering function
  • Improper belt tension due to pulley wear

Installation Notes and Tips

  • Mounting hardware is not included; reuse existing hardware or source appropriate fasteners
  • Installation instructions are not provided; professional installation is recommended
  • Ensure the pulley bore and mounting hole align precisely with the power steering pump shaft
  • Inspect the serpentine belt for wear and replace if necessary during installation
  • Verify proper belt tension after installation to avoid premature wear

Quality Assurance and Warranty

The Dorman 300-141 power steering pump pulley meets standard replacement grade requirements, providing reliable performance for compatible Chevrolet, GMC, and Isuzu vehicles. While specific warranty details are not provided, Dorman products typically undergo quality control testing to ensure fit and function. For warranty information, refer to Dorman’s official documentation or contact the manufacturer directly.

BrandDorman
Part Number300-141
Belt TypeSerpentine
ColorBlack
Groove Quantity6
Installation Instructions IncludedNo
Item GradeStandard Replacement
MaterialSteel
Mounting Hardware IncludedNo
Mounting Hole Quantity1
Outside Diameter5.94
Package ContentsPulley
Pulley Bore0.39

This part fits 32 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012ChevroletColorado3.7LL5N/A
2012ChevroletColorado2.9LL4N/A
2012GMCCanyon3.7LL5N/A
2012GMCCanyon2.9LL4N/A
2011ChevroletColorado3.7LL5N/A
2011ChevroletColorado2.9LL4N/A
2011GMCCanyon3.7LL5N/A
2011GMCCanyon2.9LL4N/A
2010ChevroletColorado3.7LL5N/A
2010ChevroletColorado2.9LL4N/A
2010GMCCanyon3.7LL5N/A
2010GMCCanyon2.9LL4N/A
2009ChevroletColorado3.7LL5N/A
2009ChevroletColorado2.9LL4N/A
2009GMCCanyon3.7LL5N/A
2009GMCCanyon2.9LL4N/A
2008ChevroletColoradoN/A
2008GMCCanyonN/A
2008Isuzui-290N/A
2008Isuzui-370N/A
2007ChevroletColoradoN/A
2007GMCCanyonN/A
2007Isuzui-290N/A
2007Isuzui-370N/A
2006ChevroletColoradoN/A
2006GMCCanyonN/A
2006Isuzui-280N/A
2006Isuzui-350N/A
2005ChevroletColoradoN/A
2005GMCCanyonN/A
2004ChevroletColoradoN/A
2004GMCCanyonN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

125682843P15151

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.