HomeBelts and Cooling > Hoses and PipesDorman 624-623 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler to Radiator (Passenger Side)
Part #: 624-623

Dorman 624-623 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler to Radiator (Passenger Side)

Auxiliary Cooler to Radiator (Passenger Side)
12 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, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500
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Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-623 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 heavy-duty trucks, this hose assembly ensures efficient fluid transfer and temperature regulation.

  • Length: 9.13 inches for precise fitment
  • Hose color: Natural for easy identification
  • End 1: Quick disconnect fitting with 0.53 inch inside diameter
  • End 2: Hose barb fitting with 0.56 inch inside diameter
  • Material: Combination of metal and rubber for flexibility and durability
  • Maximum working pressure: 100 psi
  • Operating temperature range: -40°F to 329°F
  • Straight hose shape for straightforward installation
  • Flexible design without internal spring

Durable Construction and Precise Fitment

This transmission oil cooler hose assembly combines metal and rubber materials to provide both strength and flexibility, accommodating the thermal expansion and vibrations common in heavy-duty trucks. The natural hose color allows for quick visual inspection during maintenance. The quick disconnect fitting on one end and hose barb on the other ensure secure connections to the transmission cooler lines, minimizing the risk of leaks. With a maximum working pressure of 100 psi and an operating temperature range from -40°F to 329°F, this hose assembly is built to withstand the harsh conditions experienced by Chevrolet Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500 models.

Compatible Vehicles and Applications

  • Chevrolet Sierra 2500 HD transmission oil cooler line replacement
  • GMC Sierra 3500 automatic transmission cooling system repair
  • Silverado 2500 HD transmission fluid cooler hose upgrade
  • Silverado 3500 transmission oil cooler hose assembly replacement

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns from hot transmission fluid. Verify that the hose length and fitting types match your vehicle’s specifications. Use appropriate tools to disconnect the quick disconnect fitting carefully to prevent damage. Inspect the hose barb end for a secure fit and clamp properly to avoid leaks. Regularly check the hose assembly for signs of wear or damage during routine maintenance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance for your transmission cooling system. While specific warranty details for part number 624-623 are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult the product packaging or Dorman’s official resources for exact warranty terms.

BrandDorman
Part Number624-623
Hose ColorNatural
Length9.13
End 1 TypeQuick disconnect
End 2 TypeHose barb
End 1 Inside Diameter0.53
End 2 Inside Diameter0.56
Contains SpringNo
Maximum Working Pressure100
Hose ShapeStraight
Hose MaterialMetal
Hose MaterialRubber
FlexibleYes
Gasket or Seal IncludedNo
Maximum Operating Temperature (┬░F)329 deg. f
Minimum Operating Temperature (┬░F)-40 deg. f
Package Contents1 transmission line

This part fits 12 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2003ChevroletSilverado 2500 HDAutomatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2003ChevroletSilverado 3500Automatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2003GMCSierra 2500 HDAutomatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2003GMCSierra 3500Automatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2002ChevroletSilverado 2500 HDAutomatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2002ChevroletSilverado 3500Automatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2002GMCSierra 2500 HDAutomatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2002GMCSierra 3500Automatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2001ChevroletSilverado 2500 HDAutomatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2001ChevroletSilverado 3500Automatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2001GMCSierra 2500 HDAutomatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.
2001GMCSierra 3500Automatic8.1LV8Auxiliary Cooler to Radiator (Passenger Side)ID Code KWD and KUD - compatible with Automatic Transmission Oil Cooler Hose Assemblies.

* 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:

15767599

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