HomeBelts and Cooling > Radiators, Coolers and Related ComponentsDorman 918-455 Automatic Transmission Oil Cooler
Part #: 918-455

Dorman 918-455 Automatic Transmission Oil Cooler

⚙️ 20 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$208.27Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge, Ram 1500, Ram 2500, and Ram 3500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Automatic Transmission Oil Cooler for Dodge Ram Trucks

The Dorman 918-455 automatic transmission oil cooler is engineered to provide efficient cooling for your Dodge Ram 1500, Ram 2500, and Ram 3500 models. Constructed from durable aluminum with a painted black housing, this cooler helps maintain optimal transmission temperatures under demanding driving conditions.

  • Material: High-quality aluminum core and construction for effective heat dissipation
  • Dimensions: 27.5 inches length, 8.25 inches height, 1.062 inches thickness
  • Quick connect inlet and outlet attachment types for straightforward hose connections
  • Core features 25 rows for enhanced cooling capacity
  • Standard replacement grade designed to meet OEM specifications
  • Core tube width of 0.4 inches and line inside diameter of 0.073 inches
  • Housing color: black painted finish for corrosion resistance
  • Strap width of 0.809 inches for secure mounting (mounting hardware not included)

Product Details and Specifications

The Dorman 918-455 automatic transmission oil cooler is built with an aluminum core that ensures efficient heat transfer and durability. Its 25-row core design increases the surface area for cooling transmission fluid, helping to prevent overheating during heavy towing or extended driving. The cooler measures 27.5 inches in length, 8.25 inches in height, and 1.062 inches in thickness, making it compatible with the cooling system layout of Dodge Ram 1500, 2500, and 3500 trucks. Both the inlet and outlet feature quick connect fittings, simplifying installation and reducing the risk of leaks. The black painted housing provides additional protection against corrosion and environmental wear.

Compatible Vehicles and Applications

  • Designed specifically for Dodge Ram 1500 models requiring an automatic transmission oil cooler replacement
  • Compatible with Dodge Ram 2500 trucks for maintaining transmission fluid temperature
  • Fits Dodge Ram 3500 vehicles to support transmission cooling under heavy load conditions

Installation Notes and Tips

  • Ensure the vehicle is cool and safely supported before beginning installation
  • Use appropriate tools to disconnect existing transmission cooler lines with quick connect fittings
  • Verify the orientation and position of the cooler to match factory mounting points
  • Check for leaks after installation and refill transmission fluid as needed
  • Mounting hardware is not included; reuse existing hardware or source compatible fasteners

Quality Assurance and Warranty

Dorman manufactures the 918-455 automatic transmission oil cooler to meet standard replacement grade requirements, ensuring reliable performance and durability. The aluminum construction and painted finish contribute to corrosion resistance and long service life. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.

BrandDorman
Part Number918-455
MaterialAluminio
MaterialAluminum
11101Oui
11101
11101Yes
Length27.5
Thickness1.062
FinishPainted
FinishPintado
Width0.809
Inlet Attachment TypeConexión rápida
Inlet Attachment TypeQuick connect
Outlet Attachment TypeConexión rápida
Outlet Attachment TypeQuick connect
Mounting Hardware IncludedNo
Mounting Hardware IncludedNon
Core MaterialAluminio
Core MaterialAluminum
Height8.25
Grade TypeReemplazo estándar
Grade TypeStandard replacement
Strap Width0.809
Core Tube Width0.4
Line Inside Diameter0.073
Electric FanNo
Electric FanNon
Core Row Quantity25
Housing ColorBlack
Housing ColorNegro
Housing ColorNoir

This part fits 20 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009DodgeRam 25005.7LV8N/A
2009DodgeRam 35005.7LV8N/A
2008DodgeRam 15005.7LV8N/Aw/Sales Code NMC (Heavy Duty Engine Cooling)
2008DodgeRam 25005.7LV8N/A
2008DodgeRam 35005.7LV8N/A
2007DodgeRam 15005.7LV8N/Aw/Sales Code NMC (Heavy Duty Engine Cooling)
2007DodgeRam 25005.7LV8N/A
2007DodgeRam 35005.7LV8N/A
2006DodgeRam 15005.7LV8N/Aw/Sales Code NMC (Heavy Duty Engine Cooling)
2006DodgeRam 25005.7LV8N/A
2006DodgeRam 35005.7LV8N/A
2005DodgeRam 15005.7LV8N/Aw/Sales Code NMC (Heavy Duty Engine Cooling)
2005DodgeRam 25005.7LV8N/A
2005DodgeRam 35005.7LV8N/A
2004DodgeRam 15005.7LV8N/Aw/Sales Code NMS (Severe Duty Engine Cooling)
2004DodgeRam 25005.7LV8N/A
2004DodgeRam 35005.7LV8N/A
2003DodgeRam 15005.7LV8N/Aw/Sales Code NMS (Severe Duty Engine Cooling)
2003DodgeRam 25005.7LV8N/A
2003DodgeRam 35005.7LV8N/A

* 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:

1908555056472ABFC1319TSKTOC082SKTOC083

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