HomeBelts and Cooling > Hoses and PipesDorman 624-974 Automatic Transmission Oil Cooler Hose Assembly - Inlet (Upper)
Part #: 624-974

Dorman 624-974 Automatic Transmission Oil Cooler Hose Assembly - Inlet (Upper)

Inlet (Upper)
16 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, Pontiac, Buick, and Oldsmobile, Venture, Montana, Rendezvous, Silhouette, and Aztek
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Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-974 automatic transmission oil cooler hose assembly is designed to provide a secure and durable connection for your vehicle's transmission cooling system. Engineered for select Buick, Oldsmobile, and Pontiac models, this hose assembly ensures proper fluid flow and temperature regulation under varying operating conditions.

  • Durable rubber and metal hose construction for strength and longevity
  • Natural hose color for easy identification during maintenance
  • 50-inch length suitable for specific transmission line routing
  • Quick disconnect fittings on both ends for efficient installation and removal
  • Maximum working pressure of 100 psi to handle transmission fluid demands
  • Operates reliably between -40°F and 329°F temperature range
  • Non-flexible design for stable and secure hose positioning
  • Does not include gasket or seal, compatible with existing system components

Product Details and Specifications

The Dorman 624-974 transmission oil cooler hose assembly features a combination of rubber and metal materials, providing a balance of flexibility and durability. Its 50-inch length is tailored to fit the transmission cooling systems of Buick Aztek, Oldsmobile Silhouette, Pontiac Montana, and Pontiac Rendezvous models. Both ends are equipped with quick disconnect fittings, allowing for straightforward connection and disconnection without the need for specialized tools. This hose assembly is designed to withstand a maximum working pressure of 100 psi and operate effectively within a temperature range from -40°F to 329°F, ensuring consistent performance in various driving environments.

Compatible Vehicles and Applications

This transmission oil cooler hose assembly is compatible with the following vehicles:

  • Buick Aztek
  • Oldsmobile Silhouette
  • Pontiac Montana
  • Pontiac Rendezvous

Use the Dorman 624-974 hose assembly to maintain proper transmission fluid cooling and prevent overheating issues in these models.

Common Issues Addressed by This Hose Assembly

  • Transmission fluid leaks due to worn or damaged hoses
  • Overheating caused by restricted or failing transmission cooler lines
  • Loss of transmission fluid pressure affecting shifting performance
  • Corrosion or cracking in original hose assemblies
  • Difficulty in servicing transmission cooler lines without quick disconnect fittings

Installation Notes and Tips

  • Ensure the vehicle is cool and safely supported before beginning installation
  • Inspect existing fittings and connectors for damage or wear prior to replacement
  • Use appropriate tools to disconnect quick disconnect fittings without damaging them
  • Verify hose routing matches original configuration to avoid kinks or interference
  • Check for leaks after installation by running the engine and monitoring transmission fluid flow

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The 624-974 transmission oil cooler hose assembly undergoes rigorous quality control to ensure proper fit and function. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandDorman
Part Number624-974
Contains SpringNo
End 1 TypeQuick Disconnect
End 2 TypeQuick Disconnect
FlexibleNo
Gasket or Seal IncludedNo
Hose ColorNatural
Hose MaterialRubber/Metal
Length50
Maximum Operating Temperature (┬░F)329
Maximum Working Pressure100
Minimum Operating Temperature (┬░F)-40
Package Contents1 Transmission Line

This part fits 16 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2005PontiacMontanaBase3.4LV6Inlet (Upper)9.48 mm End of Hose to Flare
2004BuickRendezvous3.4LV6Inlet (Upper)
2004OldsmobileSilhouette3.4LV6Inlet (Upper)
2004PontiacAztek3.4LV6Inlet (Upper)
2004PontiacMontana3.4LV6Inlet (Upper)
2003BuickRendezvous3.4LV6Inlet (Upper)
2003OldsmobileSilhouette3.4LV6Inlet (Upper)
2003PontiacAztek3.4LV6Inlet (Upper)
2003PontiacMontana3.4LV6Inlet (Upper)
2002BuickRendezvous3.4LV6Inlet (Upper)
2002OldsmobileSilhouette3.4LV6Inlet (Upper)
2002PontiacAztek3.4LV6Inlet (Upper)
2002PontiacMontana3.4LV6Inlet (Upper)
2001OldsmobileSilhouette3.4LV6Inlet (Upper)
2001PontiacAztek3.4LV6Inlet (Upper)
2001PontiacMontana3.4LV6Inlet (Upper)

* 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:

103013015801076

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