HomeBelts and Cooling > Hoses and PipesDorman 624-275 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler (Driver Side) to Transmission
Part #: 624-275

Dorman 624-275 Automatic Transmission Oil Cooler Hose Assembly - Auxiliary Cooler (Driver Side) to Transmission

Auxiliary Cooler (Driver Side) to Transmission
12 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$100.40Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Sierra 2500 HD, Sierra 3500, Silverado 2500 HD, and Silverado 3500
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-275 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 under varying temperature and pressure conditions.

  • Compatible with Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 models
  • 9.25-inch length with a straight hose shape for precise fitment
  • Constructed from a combination of metal and rubber for flexibility and durability
  • Natural hose color with a 14 mm inside diameter on End 1
  • Operates reliably between -40°F and 329°F
  • Maximum working pressure of 100 PSI
  • Flexible design without internal springs
  • Includes one transmission line per package

Durable Construction and Precise Fitment

The Dorman 624-275 hose assembly combines metal and rubber materials to provide a flexible yet robust solution for automatic transmission oil cooling. Its straight hose shape and 9.25-inch length are tailored to fit specific Chevrolet and GMC heavy-duty truck models, including the Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, and Sierra 3500. The hose's natural color and 14 mm inside diameter ensure compatibility with existing transmission cooling systems. Designed to withstand operating temperatures from -40°F to 329°F and pressures up to 100 PSI, this hose assembly maintains performance under demanding conditions.

Applications and Common Issues Addressed

  • Replacement of worn or cracked transmission oil cooler hoses
  • Prevention of transmission fluid leaks that can lead to overheating
  • Restoration of proper transmission fluid flow for optimal cooling
  • Mitigation of hose failures caused by temperature extremes or pressure spikes
  • Maintenance of transmission system integrity in Chevrolet Silverado and GMC Sierra heavy-duty trucks

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid injury from hot fluids. Verify hose length and diameter compatibility with your specific model. Carefully remove the old hose assembly and inspect fittings for damage or corrosion. When installing the Dorman 624-275 hose, avoid twisting or kinking to maintain flexibility and prevent premature wear. Tighten clamps securely but avoid over-tightening, which can damage the hose ends.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 624-275 transmission oil cooler hose assembly undergoes rigorous quality control to ensure durability and reliability. While specific warranty details are not provided, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandDorman
Part Number624-275
Hose ColorNatural
Length9.25
End 1 TypeNone
End 2 TypeNone
End 1 Inside Diameter14
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:

YearMakeModelLitersCylindersPositionNotes
2005ChevroletSilverado 2500 HD6.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2005ChevroletSilverado 35006.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2005GMCSierra 2500 HD6.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2005GMCSierra 35006.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2004ChevroletSilverado 2500 HD6.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2004ChevroletSilverado 35006.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2004GMCSierra 2500 HD6.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2004GMCSierra 35006.6LV8Auxiliary Cooler (Driver Side) to TransmissionTube and Hose
2003ChevroletSilverado 2500 HD6.6LV8Auxiliary Cooler (Driver Side) to TransmissionID Code UCZ; Tube and Hose
2003ChevroletSilverado 35006.6LV8Auxiliary Cooler (Driver Side) to TransmissionID Code UCZ; Tube and Hose
2003GMCSierra 2500 HD6.6LV8Auxiliary Cooler (Driver Side) to TransmissionID Code UCZ; Tube and Hose
2003GMCSierra 35006.6LV8Auxiliary Cooler (Driver Side) to TransmissionID Code UCZ; Tube and Hose

* 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:

151702195801422

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