HomeBelts and Cooling > Hoses and PipesDorman 624-643 Automatic Transmission Oil Cooler Hose Assembly
Part #: 624-643

Dorman 624-643 Automatic Transmission Oil Cooler Hose Assembly

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6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Jeep, Grand Cherokee
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Reliable Automatic Transmission Oil Cooler Hose for Jeep Grand Cherokee

The Dorman 624-643 automatic transmission oil cooler hose assembly is designed specifically for Jeep Grand Cherokee models. This durable hose assembly ensures efficient transmission fluid cooling, helping maintain optimal transmission performance under various driving conditions.

  • Length: 9.4 inches for precise fitment
  • Hose color: Natural for easy identification
  • Ends: Hose barb on one side and quick disconnect on the other for secure connections
  • Inside diameter: 0.374 inches on both ends for consistent fluid flow
  • Material: Combination of metal and rubber for flexibility and durability
  • Maximum working pressure: 100 PSI to handle transmission fluid pressure
  • Operating temperature range: -40°F to 329°F suitable for extreme conditions
  • Hose shape: Straight design for straightforward installation
  • Flexible construction without internal springs

Durable Hose Assembly Designed for Jeep Grand Cherokee

The Dorman 624-643 transmission oil cooler hose assembly combines metal and rubber materials to provide a flexible yet robust solution for your Jeep Grand Cherokee’s transmission cooling system. Its straight hose shape and precise 9.4-inch length ensure a proper fit, while the hose barb and quick disconnect ends facilitate secure and leak-free connections. Rated for a maximum working pressure of 100 PSI and an operating temperature range from -40°F to 329°F, this hose assembly is engineered to withstand the demanding conditions of transmission fluid circulation.

Compatible Applications and Common Issues Addressed

  • Compatible with Jeep Grand Cherokee models requiring a 9.4-inch transmission oil cooler hose
  • Replaces worn or cracked transmission cooler hoses causing fluid leaks
  • Prevents overheating by maintaining proper transmission fluid flow
  • Eliminates pressure loss due to damaged or flexible hose failures
  • Helps avoid transmission shifting problems related to cooler hose malfunctions

Installation Notes and Tips

  • Ensure the vehicle is cool and transmission fluid pressure is relieved before removal
  • Check hose ends for secure fitment: hose barb and quick disconnect connections
  • Inspect surrounding components for wear or damage during installation
  • Use appropriate tools to avoid damaging hose ends or fittings
  • Verify no leaks after installation by running the engine and monitoring fluid flow

Quality Assurance and Warranty Information

Dorman manufactures the 624-643 transmission oil cooler hose assembly to meet or exceed OEM specifications for Jeep Grand Cherokee vehicles. The hose assembly undergoes rigorous testing to ensure durability, pressure resistance, and temperature tolerance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship to provide confidence in product reliability.

BrandDorman
Part Number624-643
Contains SpringNo
End 1 Inside Diameter0.374
End 1 TypeHose Barb
End 2 Inside Diameter0.374
End 2 TypeQuick Disconnect
FlexibleYes
Gasket or Seal IncludedNo
Hose ColorNatural
Hose MaterialMetal
Hose MaterialRubber
Hose ShapeStraight
Length9.4
Maximum Operating Temperature (┬░F)329 Deg. F
Maximum Working Pressure100
Minimum Operating Temperature (┬░F)-40 Deg. F
Package Contents1 Transmission Line

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004JeepGrand Cherokee4.7LV8N/AReturn; wo/Auxiliary Oil Cooler
2003JeepGrand Cherokee4.7LV8N/AReturn; wo/Auxiliary Oil Cooler
2002JeepGrand Cherokee4.7LV8N/AReturn; wo/Auxiliary Oil Cooler
2001JeepGrand Cherokee4.7LV8N/AReturn; wo/Auxiliary Oil Cooler
2000JeepGrand Cherokee4.7LV8N/AReturn; wo/Auxiliary Oil Cooler
1999JeepGrand Cherokee4.7LV8N/AReturn; wo/Auxiliary Oil Cooler

* 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:

52079783AA

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