HomeBelts and Cooling > Hoses and PipesDorman 624-626 Automatic Transmission Oil Cooler Hose Assembly - Inlet and Outlet
Part #: 624-626

Dorman 624-626 Automatic Transmission Oil Cooler Hose Assembly - Inlet and Outlet

Inlet and Outlet
⚙️ 44 vehicles fit this part
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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 HD, Silverado 2500 HD, and Silverado 3500 HD
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Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-626 automatic transmission oil cooler hose assembly is designed to provide a durable and flexible connection for your vehicle's transmission cooling system. Engineered for Chevrolet and GMC heavy-duty trucks, this hose assembly ensures efficient fluid transfer under varying temperature and pressure conditions.

  • Compatible with Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD models
  • Constructed with a combination of metal and rubber materials for flexibility and durability
  • Features a straight hose shape with quick disconnect and male threaded ends for secure connections
  • Supports a maximum working pressure of 500 psi and operates between -40°F and 329°F
  • Includes a gasket or seal to ensure leak-free installation
  • Hose lengths of 52.7 inches and 9.1 inches accommodate specific routing requirements

Durable Construction and Precise Fitment

The Dorman 624-626 hose assembly combines metal and rubber materials to provide both flexibility and strength, essential for maintaining transmission fluid flow under high pressure and temperature. The black and natural colored hoses are designed in a straight shape to fit the transmission oil cooler lines of select Chevrolet and GMC heavy-duty trucks. The quick disconnect fitting on one end and male threaded fitting on the other ensure a secure and reliable connection, minimizing the risk of leaks or disconnections during operation.

Compatible Vehicles and Applications

This transmission oil cooler hose assembly is specifically compatible with Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD models. It is intended for use in the transmission cooling system to help regulate fluid temperature and maintain optimal transmission performance.

  • Replaces worn or damaged transmission oil cooler hoses
  • Prevents transmission fluid leaks and overheating
  • Restores proper transmission fluid flow and cooling efficiency
  • Addresses issues related to hose cracking, swelling, or hardening
  • Supports transmission system maintenance and repair

Installation Notes and Tips

When installing the Dorman 624-626 hose assembly, ensure the quick disconnect and male threaded ends are properly seated and tightened to prevent leaks. Verify hose routing matches the original configuration to avoid kinks or interference with other components. The included gasket or seal should be inspected and replaced if necessary to maintain a secure seal. Flexible hose construction allows for easier alignment during installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance for your vehicle. This hose assembly is designed to withstand operating temperatures from -40°F to 329°F and pressures up to 500 psi, ensuring durability under demanding conditions. Please refer to Dorman's warranty policy for specific coverage details.

BrandDorman
Part Number624-626
Hose ColorBlack
Hose ColorNatural
Length52.7
Length9.1
End 1 TypeQuick disconnect
End 2 TypeMale threads
End 1 Inside Diameter0.32
End 2 Inside Diameter0.3
Contains SpringNo
Maximum Working Pressure500
Hose ShapeStraight
Hose MaterialMetal
Hose MaterialRubber
Fittings IncludedNo
FlexibleYes
Gasket or Seal IncludedYes
Maximum Operating Temperature (┬░F)329 deg. f.
Minimum Operating Temperature (┬░F)-40 deg. f.
Package Contents1 transmission line

This part fits 44 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2014ChevroletSilverado 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2014ChevroletSilverado 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2014ChevroletSilverado 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2014ChevroletSilverado 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2014GMCSierra 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2014GMCSierra 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2014GMCSierra 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2014GMCSierra 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2013ChevroletSilverado 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2013ChevroletSilverado 2500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2013ChevroletSilverado 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2013ChevroletSilverado 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2013ChevroletSilverado 3500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2013ChevroletSilverado 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2013GMCSierra 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2013GMCSierra 2500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2013GMCSierra 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2013GMCSierra 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2013GMCSierra 3500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2013GMCSierra 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2012ChevroletSilverado 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2012ChevroletSilverado 2500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2012ChevroletSilverado 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2012ChevroletSilverado 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2012ChevroletSilverado 3500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2012ChevroletSilverado 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2012GMCSierra 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2012GMCSierra 2500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2012GMCSierra 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2012GMCSierra 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2012GMCSierra 3500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2012GMCSierra 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2011ChevroletSilverado 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2011ChevroletSilverado 2500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2011ChevroletSilverado 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2011ChevroletSilverado 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2011ChevroletSilverado 3500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2011ChevroletSilverado 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2011GMCSierra 2500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2011GMCSierra 2500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2011GMCSierra 2500 HDCrew Cab Pickup6.0LV8Inlet and Outlet
2011GMCSierra 3500 HDStandard Cab Pickup6.0LV8Inlet and Outlet
2011GMCSierra 3500 HDExtended Cab Pickup6.0LV8Inlet and Outlet
2011GMCSierra 3500 HDCrew Cab Pickup6.0LV8Inlet and Outlet

* 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:

20951852

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