HomeBelts and Cooling > Hoses and PipesDorman 624-644 Automatic Transmission Oil Cooler Hose Assembly - Inlet or Outlet
Part #: 624-644

Dorman 624-644 Automatic Transmission Oil Cooler Hose Assembly - Inlet or Outlet

Inlet and Outlet
12 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: Ford, Excursion, F-250 Super Duty, and F-350 Super Duty
Easy Returns — Return within 60 days for a full refund
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Reliable Automatic Transmission Oil Cooler Hose Assembly

The Dorman 624-644 automatic transmission oil cooler hose assembly is designed to provide a durable and precise fit for Ford Excursion, F-250 Super Duty, and F-350 Super Duty models. Engineered with metal construction and quick disconnect ends, this hose assembly ensures efficient transmission fluid cooling under a wide range of operating conditions.

  • Natural-colored metal hose with a straight shape for direct routing
  • 24-inch length with 0.41-inch inside diameter on both ends
  • Quick disconnect fittings on both ends for easy installation and removal
  • Maximum working pressure of 100 psi suitable for transmission cooling systems
  • Operates reliably between -40°F and 329°F temperature range
  • Non-flexible design for stable fluid flow without kinking
  • Contains no spring, ensuring consistent hose integrity

Durable Design and Precise Fitment

This Dorman automatic transmission oil cooler hose assembly (part number 624-644) is constructed from metal to withstand the demanding environment of transmission cooling systems. The straight hose shape and natural color provide a straightforward replacement option that matches original equipment specifications. Both ends feature quick disconnect fittings with a 0.41-inch inside diameter, allowing for secure and leak-resistant connections. The hose is designed to handle a maximum working pressure of 100 psi and operate effectively in temperatures ranging from -40°F to 329°F, making it suitable for heavy-duty Ford trucks like the Excursion, F-250 Super Duty, and F-350 Super Duty.

Compatible Vehicles and Applications

  • Ford Excursion transmission oil cooler line replacement
  • Ford F-250 Super Duty automatic transmission cooling hose
  • Ford F-350 Super Duty transmission fluid cooler hose assembly
  • Replacement for worn or damaged transmission oil cooler hoses in specified Ford models
  • Helps maintain proper transmission fluid temperature and system pressure

Installation Notes and Tips

When installing the Dorman 624-644 hose assembly, ensure the quick disconnect fittings are fully engaged to prevent leaks. The straight hose shape requires proper alignment with the transmission cooler lines to avoid stress or bending. Since the hose is non-flexible and metal, avoid forcing it into tight bends or kinks. Inspect the transmission cooler system for any signs of wear or damage before installation to ensure optimal performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 624-644 transmission oil cooler hose assembly undergoes rigorous quality checks to ensure durability and reliability in demanding automotive environments. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in material and workmanship.

BrandDorman
Part Number624-644
Hose ColorNatural
Length24
End 1 TypeQuick disconnect
End 2 TypeQuick disconnect
End 1 Inside Diameter0.41
End 2 Inside Diameter0.41
Contains SpringNo
Maximum Working Pressure100
Hose ShapeStraight
Hose MaterialMetal
FlexibleNo
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:

YearMakeModelPositionNotes
2004FordExcursionInlet
2004FordExcursionOutlet
2004FordF-250 Super DutyInlet
2004FordF-250 Super DutyOutlet
2004FordF-350 Super DutyInlet
2004FordF-350 Super DutyOutlet
2003FordExcursionInlet
2003FordExcursionOutlet
2003FordF-250 Super DutyInlet
2003FordF-250 Super DutyOutlet
2003FordF-350 Super DutyInlet
2003FordF-350 Super DutyOutlet

* 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:

3C3Z7A031CA

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