HomeBelts and Cooling > Hoses and PipesDorman 624-991 Automatic Transmission Oil Cooler Hose Assembly - Inlet To Transmission (Rear)
Part #: 624-991

Dorman 624-991 Automatic Transmission Oil Cooler Hose Assembly - Inlet To Transmission (Rear)

Inlet To Transmission (Rear)
10 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: Dodge, Ram 2500 and Ram 3500
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Reliable Transmission Cooling for Dodge Ram 2500 and 3500

The Dorman 624-991 Automatic Transmission Oil Cooler Hose Assembly is designed to maintain optimal transmission temperatures in Dodge Ram 2500 and Ram 3500 trucks. Engineered with durable metal construction and precise fittings, this hose assembly ensures efficient fluid flow and long-lasting performance.

  • Durable metal hose material for strength and longevity
  • 40.5-inch length suitable for specific Dodge Ram 2500 and 3500 models
  • Female threaded fitting on one end and male quick disconnect on the other for secure connections
  • Operates reliably between -40°F and 329°F temperature range
  • Maximum working pressure of 100 PSI to handle transmission fluid demands
  • Natural hose color for easy identification
  • Non-flexible design for stable fluid transfer without kinking

Detailed Product Description

The Dorman 624-991 transmission oil cooler hose assembly is crafted from metal to provide a robust and corrosion-resistant solution for automatic transmission cooling systems. Its 40.5-inch length is tailored to fit Dodge Ram 2500 and Ram 3500 trucks, ensuring proper routing and connection. The hose features a female threaded fitting on one end and a male quick disconnect fitting on the other, facilitating straightforward installation and secure sealing. Designed to withstand a maximum working pressure of 100 PSI, this hose assembly supports consistent transmission fluid flow under demanding conditions. It operates effectively within a wide temperature range from -40°F to 329°F, accommodating various driving environments without compromising performance.

Common Applications and Issues Addressed

  • Replacement of worn or damaged transmission oil cooler hoses in Dodge Ram 2500 and 3500
  • Prevention of transmission fluid leaks that can lead to overheating
  • Restoration of proper transmission fluid circulation to maintain cooling efficiency
  • Addressing hose failures caused by corrosion or pressure-related damage
  • Ensuring secure connections with compatible fittings to avoid fluid loss

Installation Notes and Tips

When installing the Dorman 624-991 hose assembly, verify compatibility with your Dodge Ram 2500 or 3500 model year and transmission type. Ensure all fittings are clean and free of debris before connecting. Tighten the female threaded end securely and confirm the male quick disconnect snaps firmly into place to prevent leaks. Avoid bending or flexing the metal hose excessively during installation to maintain its integrity and performance.

Quality Assurance and Warranty

Dorman manufactures the 624-991 transmission oil cooler hose assembly to meet or exceed OEM standards for durability and fitment. While specific warranty details are not provided, Dorman products typically undergo rigorous quality control to ensure reliable operation in demanding automotive environments.

BrandDorman
Part Number624-991
Hose ColorNatural
Length40.5
End 1 TypeFemale threads
End 2 TypeMale quick disconnect
Contains SpringNo
Maximum Working Pressure100
Hose MaterialMetal
FlexibleNo
Maximum Operating Temperature (┬░F)329
Minimum Operating Temperature (┬░F)-40
Package Contents1 transmission line

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002DodgeRam 25005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
2002DodgeRam 35005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
2001DodgeRam 25005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
2001DodgeRam 35005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
2000DodgeRam 25005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
2000DodgeRam 35005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
1999DodgeRam 25005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
1999DodgeRam 35005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
1998DodgeRam 25005.9LL6Inlet To Transmission (Rear)Auxiliary Cooler
1998DodgeRam 35005.9LL6Inlet To Transmission (Rear)Auxiliary 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:

520286335801038

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