Mishimoto MMTC-RAM-25 Performance Transmission Cooler for 2025-2026 Ram 1500 3.0

Vehicle Fitment

• 2025-2026 Ram 1500 (All Trims, 3.0L Twin-Turbo I6 Hurricane, 8HP75 Automatic Transmission, 4WD/RWD)

Fitment Notes

• Fits all 2025+ Ram 1500 models equipped with the 3.0L Twin-Turbo Hurricane inline-six and 8HP75 automatic transmission.
• Front grille removal is not required for installation - quick-disconnect fittings and a removable mounting bracket simplify hardline connection.
• Compatible with both OEM and Mishimoto transmission cooler products for seamless system integration.
• Designed, engineered, and tested in the USA on a 2025 Ram 1500 RHO development vehicle.
• Does not fit Ram 1500 models with eTorque, 5.7L HEMI, or 6.4L HEMI engines - verify 3.0L Hurricane fitment before ordering.

Features

• Tube-and-fin core with 60% greater core volume than the stock cooler - substantially increases heat dissipation capacity under tow and off-road loads.
• 25% greater fluid capacity than stock - provides additional thermal buffer during sustained high-heat operation.
• Proprietary internal fin design bench-tested to outperform the OEM fin configuration by an average of 4%, keeping the 8HP75 in its optimal temperature range under maximum load.
• Quick-disconnect fittings and removable mounting bracket simplify installation without requiring front grille removal.
• Works alongside the factory transmission cooler - supplements OEM cooling without eliminating quick warm-up function in cold conditions.
• Robust powder-coated aluminum finish resists corrosion and environmental damage across towing, trail, and all-weather use.
• Designed, engineered, and tested in the USA.
• Backed by Mishimoto's Lifetime Warranty.

Specifications

• Fitment: 2025-2026 Ram 1500, 3.0L Twin-Turbo I6 Hurricane, 8HP75 Automatic Transmission
• Core Type: Tube-and-Fin
• Core Volume Increase vs. Stock: 60%
• Fluid Capacity Increase vs. Stock: 25%
• Internal Fin Performance vs. OEM: +4% (bench tested)
• Position: Front-Mount (Air-to-Fluid)
• Fittings: Quick-Disconnect
• Mounting: Removable Bracket (included)
• Finish: Powder-Coated Aluminum
• Designed, Engineered, and Tested: USA

Included Components

• 1x Mishimoto Transmission Cooler (Powder-Coated Aluminum)
• 1x Removable Mounting Bracket
• 1x Quick-Disconnect Fitting Set
• 1x Hardware Kit
• 1x Mishimoto Lifetime Warranty

Product Description

The Mishimoto MMTC-RAM-25 is a direct-fit performance transmission cooler engineered specifically for the 2025-2026 Ram 1500 equipped with the 3.0L Twin-Turbo Hurricane inline-six and 8HP75 automatic transmission. While the factory cooling system handles everyday driving effectively, sustained towing near max capacity, steep grades, and technical off-road use push transmission fluid temperatures beyond the range where the stock liquid-to-liquid cooler can adequately manage heat. The MMTC-RAM-25 addresses this with a front-mounted, air-to-fluid tube-and-fin core that carries 60% more core volume and 25% greater fluid capacity than the OEM unit - delivering a significant increase in thermal headroom precisely where the Hurricane drivetrain demands it.

Mishimoto's internal fin design was specifically bench-tested against the Ram OEM fin configuration and delivered a 4% improvement in heat transfer efficiency, ensuring the 8HP75 stays within its optimal operating temperature range even under the heaviest loads. Installation is designed to be straightforward - no front grille removal required. Quick-disconnect fittings and a removable mounting bracket provide clear access to the hardline connection points, making this a realistic garage install without special tooling or extended rack time. The cooler supplements rather than replaces the factory system, so the OEM quick warm-up behavior in cold climates is fully preserved.

Every MMTC-RAM-25 is designed, engineered, and tested in the USA - validated on a 2025 Ram 1500 RHO development vehicle - and finished with a powder-coated aluminum coating for long-term corrosion resistance in towing, trail, and all-weather environments. For Ram 1500 owners who tow for work, run technical terrain, or simply want to protect a significant drivetrain investment, this cooler provides the thermal management the Hurricane platform needs to perform reliably mile after mile. Backed by Mishimoto's Lifetime Warranty.