HomeBelts and Cooling > Hoses and PipesDorman 624-305 Automatic Transmission Oil Cooler Hose Assembly - Inlet (Upper)
Part #: 624-305

Dorman 624-305 Automatic Transmission Oil Cooler Hose Assembly - Inlet (Upper)

Inlet (Upper)
19 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Dodge, Ram 2500, Ram 3500, and Ram 1500
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Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-305 automatic transmission oil cooler hose assembly is designed for Dodge Ram 1500, Ram 2500, and Ram 3500 models. Engineered to maintain optimal transmission fluid flow, this hose assembly ensures consistent cooling performance under varying operating conditions.

  • Length: 84.5 inches for precise fitment
  • Hose color: Natural rubber material
  • End 1: Female threaded connection
  • End 2: Male quick disconnect fitting
  • Maximum working pressure: 100 psi
  • Operating temperature range: -40°F to 329°F
  • Non-flexible rubber hose construction
  • Contains one transmission line per package

Durable Construction and Design Details

This transmission oil cooler hose assembly from Dorman is made from high-quality rubber, providing resistance to heat and pressure commonly found in automatic transmission systems. The natural hose color indicates the use of durable rubber material that withstands temperatures from -40°F up to 329°F, suitable for heavy-duty applications in Dodge Ram trucks. The hose is 84.5 inches long, ensuring proper routing and fitment without unnecessary slack or tension.

The assembly features a female threaded connection on one end and a male quick disconnect fitting on the other, facilitating secure and leak-free installation. Although the hose is not flexible, its robust design supports a maximum working pressure of 100 psi, maintaining transmission fluid integrity during operation.

Compatible Dodge Ram Models and Applications

This Dorman 624-305 hose assembly is compatible with Dodge Ram 1500, Ram 2500, and Ram 3500 trucks, making it a suitable replacement part for maintaining the automatic transmission oil cooler system. It is intended for use in vehicles requiring a reliable transmission line that meets OEM specifications.

  • Prevents transmission fluid leaks caused by worn or damaged hoses
  • Maintains proper transmission fluid cooling to avoid overheating
  • Replaces cracked or brittle transmission oil cooler lines
  • Ensures secure connections with threaded and quick disconnect fittings
  • Supports consistent transmission performance under heavy load conditions

Installation Notes and Tips

When installing the Dorman 624-305 transmission oil cooler hose assembly, ensure the vehicle is cool and the transmission fluid system is depressurized. Verify the hose length and fitting types match the original equipment. Use appropriate tools to tighten the female threaded end securely without over-torquing. The male quick disconnect fitting should snap firmly into place to prevent leaks. Inspect all connections after installation and check for fluid leaks during initial operation.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for durability and performance. The 624-305 transmission oil cooler hose assembly undergoes rigorous quality control to ensure reliable operation in Dodge Ram 1500, 2500, and 3500 models. This product is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandDorman
Part Number624-305
Contains SpringNo
End 1 TypeFemale Threads
End 2 TypeMale Quick Disconnect
FlexibleNo
Hose ColorNatural
Hose MaterialRubber
Length84.5
Maximum Operating Temperature (┬░F)329
Maximum Working Pressure100
Minimum Operating Temperature (┬░F)-40
Package Contents1 Transmission Line

This part fits 19 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002DodgeRam 15005.9LV8Inlet (Upper)wo/California Emissions
2002DodgeRam 25005.9LV8Inlet (Upper)
2002DodgeRam 35005.9LV8Inlet (Upper)
2001DodgeRam 15005.2LV8Inlet (Upper)wo/California Emissions
2001DodgeRam 15005.9LV8Inlet (Upper)
2001DodgeRam 25005.9LV8Inlet (Upper)
2001DodgeRam 35005.9LV8Inlet (Upper)
2000DodgeRam 1500Inlet (Upper)wo/California Emissions
2000DodgeRam 25005.9LV8Inlet (Upper)wo/California Emissions
2000DodgeRam 35005.9LV8Inlet (Upper)wo/California Emissions
1999DodgeRam 1500Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1999DodgeRam 25005.9LV8Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1999DodgeRam 35005.9LV8Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1998DodgeRam 1500Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1998DodgeRam 25005.9LV8Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1998DodgeRam 35005.9LV8Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1997DodgeRam 1500Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1997DodgeRam 25005.9LV8Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications
1997DodgeRam 35005.9LV8Inlet (Upper)w/Auxiliary Bypass; Will Not Fit Threaded Applications

* 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:

52028670AF5801202

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