HomeBelts and Cooling > Hoses and PipesDorman 625-166 Engine Oil Cooler Hose Assembly - Inlet or Inlet (Upper)
Part #: 625-166

Dorman 625-166 Engine Oil Cooler Hose Assembly - Inlet or Inlet (Upper)

Inlet
20 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Avalanche 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, Sierra 2500 HD, Sierra 3500, and Yukon XL 2500
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Reliable Engine Oil Cooler Hose Assembly for Chevrolet and GMC Trucks

The Dorman 625-166 engine oil cooler hose assembly is designed to provide a durable and efficient connection for your vehicle's oil cooling system. Engineered with rubber and metal materials, this hose assembly ensures reliable performance for Chevrolet and GMC heavy-duty trucks.

  • Constructed from durable rubber and metal for strength and flexibility
  • Measures 61.8 inches in length for precise fitment
  • Natural color for easy identification during installation
  • Equipped with quick disconnect fittings on both ends for fast and secure connections
  • Includes one complete oil cooler line assembly

Durable Construction and Precise Fitment

The Dorman 625-166 engine oil cooler hose assembly combines rubber and metal components to withstand high temperatures and pressure within the engine oil cooling system. Its 61.8-inch length is tailored to fit specific heavy-duty Chevrolet and GMC models, including the Avalanche 2500, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, Silverado 3500, Suburban 2500, and Yukon XL 2500. The natural color of the hose allows for easy inspection, while the quick disconnect fittings on both ends simplify installation and maintenance.

Compatible Vehicles and Applications

This engine oil cooler hose assembly is compatible with the following Chevrolet and GMC models:

  • Chevrolet Avalanche 2500
  • Chevrolet Silverado 2500 HD and 3500
  • Chevrolet Suburban 2500
  • GMC Sierra 2500 HD and 3500
  • GMC Yukon XL 2500

It is designed to maintain proper oil flow and cooling, helping to prevent overheating and potential engine damage in these heavy-duty trucks.

Common Issues Addressed by This Hose Assembly

  • Leaks or cracks in the existing oil cooler hose
  • Reduced oil cooling efficiency due to damaged or worn hoses
  • Difficulty in connecting or disconnecting oil cooler lines
  • Corrosion or wear on metal hose components
  • Incompatibility with original equipment due to improper hose length or fittings

Installation Notes and Tips

When installing the Dorman 625-166 engine oil cooler hose assembly, ensure the vehicle is cool and the engine is off. Use the quick disconnect fittings to remove the old hose carefully, avoiding damage to surrounding components. Verify the hose length and fitting types match your vehicle’s specifications before installation. Tighten connections securely to prevent leaks, and inspect the assembly after installation for proper fit and function.

Quality Assurance and Warranty

Dorman manufactures this engine oil cooler hose assembly to meet or exceed OEM standards for durability and performance. The combination of rubber and metal materials provides resistance to heat and pressure typical in heavy-duty truck applications. While specific warranty details may vary, Dorman products generally include a limited warranty against defects in materials and workmanship to ensure customer confidence.

BrandDorman
Part Number625-166
ColorNatural
End 1 TypeQuick Disconnect
End 2 TypeQuick Disconnect
Length61.8
MaterialRubber/Metal
Package ContentsOil Cooler Line

This part fits 20 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003ChevroletAvalanche 2500Inletw/KWB Tag
2003ChevroletSilverado 2500 HD8.1LV8Inletw/KWB Tag
2003ChevroletSilverado 35008.1LV8Inletw/KWB Tag
2003ChevroletSuburban 25008.1LV8Inletw/KWB Tag
2003GMCSierra 2500 HD8.1LV8Inletw/KWB Tag
2003GMCSierra 35008.1LV8Inletw/KWB Tag
2003GMCYukon XL 25008.1LV8Inletw/KWB Tag
2002ChevroletAvalanche 2500Inletw/KWB Tag
2002ChevroletSilverado 2500 HD8.1LV8Inlet (Upper)
2002ChevroletSilverado 35008.1LV8Inlet (Upper)
2002ChevroletSuburban 25008.1LV8Inletw/KWB Tag
2002GMCSierra 2500 HD8.1LV8Inlet (Upper)
2002GMCSierra 35008.1LV8Inlet (Upper)
2002GMCYukon XL 25008.1LV8Inletw/KWB Tag
2001ChevroletSilverado 2500 HD8.1LV8Inlet (Upper)
2001ChevroletSilverado 35008.1LV8Inlet (Upper)
2001ChevroletSuburban 25008.1LV8Inletw/KWB Tag
2001GMCSierra 2500 HD8.1LV8Inlet (Upper)
2001GMCSierra 35008.1LV8Inlet (Upper)
2001GMCYukon XL 25008.1LV8Inletw/KWB Tag

* 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:

150652065801272B64286

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