HomeBelts and Cooling > Hoses and PipesDorman 624-520 Automatic Transmission Oil Cooler Hose Assembly - Transmission to Radiator (Lower)
Part #: 624-520

Dorman 624-520 Automatic Transmission Oil Cooler Hose Assembly - Transmission to Radiator (Lower)

Transmission to Radiator (Lower)
29 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, Sierra 1500, Silverado 1500, Suburban 1500, Tahoe, Yukon, and Yukon XL 1500
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Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-520 automatic transmission oil cooler hose assembly is designed to provide a durable and flexible connection for your vehicle's transmission cooling system. Engineered to meet the demands of Chevrolet and GMC trucks and SUVs, this molded rubber hose assembly ensures efficient fluid transfer under varying temperature and pressure conditions.

  • Natural rubber hose material for flexibility and durability
  • 44-inch length molded assembly with hose barb ends on both sides
  • Designed for maximum working pressure of 100 PSI
  • Operates reliably between -40°F and 328°F
  • Compatible with Chevrolet Avalanche, Silverado 1500, Suburban 1500, GMC Sierra 1500, Yukon, Yukon XL 1500, and Tahoe models

Durable Construction and Precise Fitment

This Dorman automatic transmission oil cooler hose assembly (part number 624-520) features a molded rubber design that provides flexibility without compromising strength. Both ends are equipped with hose barb fittings, ensuring a secure connection to the transmission cooler lines. The hose’s natural color and 44-inch length make it suitable for direct replacement in specified Chevrolet and GMC vehicles. It withstands a maximum operating temperature of 328°F and a minimum of -40°F, making it suitable for a wide range of driving conditions.

Compatible Vehicles and Applications

This hose assembly is compatible with several Chevrolet and GMC models, including:

  • Chevrolet Avalanche
  • Chevrolet Silverado 1500
  • Chevrolet Suburban 1500
  • Chevrolet Tahoe
  • GMC Sierra 1500
  • GMC Yukon
  • GMC Yukon XL 1500

It is designed to maintain proper transmission fluid flow and cooling, helping to prevent overheating and transmission damage.

Common Issues Addressed by This Hose Assembly

  • Leaking or cracked transmission oil cooler hoses
  • Reduced transmission cooling efficiency
  • Transmission fluid contamination due to hose failure
  • Overheating transmission caused by faulty cooler lines
  • Wear and tear from exposure to extreme temperatures and pressure

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns from hot transmission fluid. Inspect hose barb fittings for corrosion or damage before attaching the new hose. Use appropriate clamps (not included) to secure the hose ends firmly. Verify that the hose routing matches the original to prevent kinks or interference with other components.

Quality Assurance and Warranty

Dorman manufactures this transmission oil cooler hose assembly to meet or exceed OEM specifications for durability and performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship. Refer to Dorman’s official documentation for complete warranty information.

BrandDorman
Part Number624-520
Hose ColorNatural
Length44
End 1 TypeHose barb
End 2 TypeHose barb
End 1 Inside Diameter0.36
Contains SpringNo
Maximum Working Pressure100
Hose ShapeMolded assembly
Hose MaterialRubber
FlexibleYes
Gasket or Seal IncludedNo
Maximum Operating Temperature (┬░F)328 deg. f
Minimum Operating Temperature (┬░F)-40 deg. f
Package Contents1 transmission line

This part fits 29 vehicles. Search below:

YearMakeModelPositionNotes
2013ChevroletSilverado 1500Transmission to Radiator (Lower)
2013GMCSierra 1500Transmission to Radiator (Lower)
2012ChevroletSilverado 1500Transmission to Radiator (Lower)
2012GMCSierra 1500Transmission to Radiator (Lower)
2011ChevroletSilverado 1500Transmission to Radiator (Lower)
2011GMCSierra 1500Transmission to Radiator (Lower)
2010ChevroletSilverado 1500Transmission to Radiator (Lower)
2010ChevroletSuburban 1500Transmission to Radiator (Lower)4L60-E Trans.
2010GMCSierra 1500Transmission to Radiator (Lower)
2010GMCYukonTransmission to Radiator (Lower)
2009ChevroletSilverado 1500Transmission to Radiator (Lower)
2009ChevroletSuburban 1500Transmission to Radiator (Lower)
2009ChevroletTahoeTransmission to Radiator (Lower)
2009GMCSierra 1500Transmission to Radiator (Lower)
2009GMCYukonTransmission to Radiator (Lower)
2008ChevroletAvalancheTransmission to Radiator (Lower)
2008ChevroletSilverado 1500Transmission to Radiator (Lower)
2008ChevroletSuburban 1500Transmission to Radiator (Lower)
2008ChevroletTahoeTransmission to Radiator (Lower)
2008GMCSierra 1500Transmission to Radiator (Lower)
2008GMCYukonTransmission to Radiator (Lower)
2008GMCYukon XL 1500Transmission to Radiator (Lower)
2007ChevroletAvalancheTransmission to Radiator (Lower)
2007ChevroletSilverado 1500Transmission to Radiator (Lower)
2007ChevroletSuburban 1500Transmission to Radiator (Lower)
2007ChevroletTahoeTransmission to Radiator (Lower)
2007GMCSierra 1500Transmission to Radiator (Lower)
2007GMCYukonTransmission to Radiator (Lower)
2007GMCYukon XL 1500Transmission to Radiator (Lower)

* 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:

157795415801491

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