Mishimoto MMTC-RAM-03SL Transmission Cooler for 2003-2009 Dodge Ram 5.9L/6.7L

Vehicle Fitment

• 2003-2007 Dodge Ram 2500 (5.9L I6, 6.7L I6, 4WD/RWD)
• 2003-2007 Dodge Ram 3500 (5.9L I6, 6.7L I6, 4WD/RWD)
• 2008-2009 Dodge Ram 4500 (6.7L I6, 4WD/RWD)
• 2008-2009 Dodge Ram 5500 (6.7L I6, 4WD/RWD)

Features

• Direct fit for 2003-2009 Dodge Ram 5.9L & 6.7L Cummins
• 212% increase in core volume
• 244% increase in fluid capacity
• 159% increase in fin surface area
• Stacked-plate design for enhanced durability
• Includes fully serviceable thermostat for cold climates
• Thermostat bypass for constant cooling in hot climates
• Eliminates corrosion-prone quick-disconnect fittings
• Compatible with 47RE, 48RE, and 68RFE transmissions
• Includes Mishimoto Lifetime Warranty

Specifications

• Material: 6061 Aluminum
• Core Dimensions: 26" (L) x 10.94" (H) x 0.87" (T)
• Rows: 48
• Fitting Size: 3/4"-16 SAE ORB
• Fluid Capacity Increase: 0.88 quarts
• Core Volume Increase: 212%
• Fin Surface Area Increase: 159%

Included Components

• 1x Mishimoto MMTC-RAM-03SL Transmission Cooler
• 1x Mishimoto Lifetime Warranty

Product Description

The Mishimoto MMTC-RAM-03SL Transmission Cooler is engineered to provide superior cooling for your 2003-2009 Dodge Ram 5.9L and 6.7L Cummins. Designed as a direct-fit replacement, this cooler features a 48-row stacked-plate core, offering a 212% increase in core volume and a 244% increase in fluid capacity compared to the stock unit. This upgrade ensures optimal transmission performance, especially during heavy towing and demanding driving conditions.

Installation is straightforward with no modifications required. The cooler includes a fully serviceable thermostat that allows for fast warm-up in cold climates and can be bypassed for constant cooling in hot climates. The design eliminates corrosion-prone quick-disconnect fittings, enhancing reliability and longevity. Backed by Mishimoto's Lifetime Warranty, this transmission cooler offers peace of mind and dependable performance.

Fitment confirmed through 2009. 2010 and newer models are not supported by this kit.