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1 11
Mishimoto

Mishimoto 2025+ Ram 1500 Transmission Cooler

4.7 store rating · 571 reviews
SKU: MISMMTC-RAM-25

Fits 2025–2026 Ram 1500

All 11 applications
$422.99
Only 2 left. Ships in 1–2 business days.
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  • Authorized dealerGenuine Mishimoto parts, sourced direct
  • 30-day returnsSee the return policy
  • Diesel techs on the line908-223-9744, call or text
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Heat is one of the biggest threats to your transmission, especially when you're pushing your 2025+ Ram 1500 3.0L Hurricane hard, whether towing heavy trailers, tackling rugged off-road terrain, or hauling equipment for work. When you need to tap into your truck's impressive power, keeping transmission temperatures under control is essential. That's why we engineered a direct-fit transmission cooler built specifically for the Ram 1500. -- This cooler works alongside your stock system to add serious cooling capacity right where you need it most. With a core volume that's 60% larger than stock and 25% greater fluid capacity, it's designed to handle the extra heat generated during demanding work and play. The tube-and-fin core maximizes cooling efficiency through superior heat transfer, helping reduce stress on your transmission by keeping fluid temperatures in the optimal range. Lower temps mean less wear, better performance, and a transmission that's ready to go the distance. -- Every component in this kit is engineered for a hassle-free installation and long-term reliability. Quick disconnect fittings make connections simple and the removable mounting bracket gives you easier access when attaching hard lines. You won't need to remove the front grille, so installation is straightforward and won't eat up your weekend. For extra protection against corrosion, the robust powder-coated finish stands up to whatever the road or trail throws at it. Designed, engineered, and tested right here in the USA, this cooler is compatible with both OEM and Mishimoto products for seamless integration. -- Whether you're towing for work, exploring off the beaten path, or simply want the peace of mind that comes with a cooler-running transmission, this upgrade delivers the efficiency and protection your Ram 1500 3.0L Hurricane deserves. Like all our products, it's backed by the Mishimoto Lifetime Warranty.

Installation Instructions
  • 25% greater fluid capacity than stock to handle more heat during heavy towing and off-road use
  • 60% larger core volume than stock for increased cooling capacity when you need it most
  • No front grille removal required for a simple and straightforward installation process
  • Tube-and-fin core design maximizes cooling efficiency through superior heat transfer
  • Removable mounting bracket provides easier access when attaching hard lines
  • Quick disconnect fittings eliminate guesswork and speed up installation
  • Designed, engineered, and tested in the USA
  • Mishimoto Lifetime Warranty

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Good to know

Questions, answered straight.

If it is not here, call or text the counter. Real people, real answers.

Fitment

  • Will this fit my truck?

    The Fits section at the top of the page lists the manufacturer's applications for this exact part. If your year, make and model is not there, or you are not sure, text us a photo of what you are replacing with your year and engine and we will confirm it before you order.

  • What if I order the wrong part?

    Call or text us before it ships and we will swap it. After delivery you have 30 days to return it in new, uninstalled condition. The return policy has the restocking details.

Shipping

  • When will it ship?

    In-stock parts usually ship within 1 to 2 business days from warehouses across the USA. The stock line under the options tells you the status of the part you are looking at. Large items ship LTL freight and we call to schedule delivery.

  • Why did I only get part of my order?

    We ship from multiple warehouses, so an order with several items can arrive in more than one box. Tracking for each shipment is emailed as it goes out. Full details in the shipping policy.

Returns and warranty

  • What is the return policy?

    30 days from delivery, in new and uninstalled condition, with a restocking fee. Everything is spelled out in the Returns & Refund Policy.

  • How do warranty claims work?

    We are an authorized dealer, so the manufacturer's warranty applies to every part we sell. Call or text us with your order number and we handle the claim with the brand for you.

Paying

  • Can I pay over time?

    Yes. Shop Pay installments are offered at checkout on qualifying orders, and the monthly estimate shows right under the price.

  • What is a core deposit?

    Some remanufactured parts, like injectors and turbos, carry a refundable core deposit. It is shown on the product page when it applies and refunded when your old part comes back to us.

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A diesel shop that sells parts, not a website that sells boxes.

Every part on this site is one our own techs can stand behind.

  • We run what we sell

    A working diesel repair and fabrication shop in Nazareth, PA. These are the parts our techs install every week.

  • Real techs on the phone

    Call or text 908-223-9744 and you get a diesel tech, not a script.

  • Authorized dealer

    Genuine parts straight from the manufacturer, with the factory warranty behind them.

  • Fast from stock

    Most in-stock parts ship in 1 to 2 business days from warehouses across the USA.

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Full Send Diesel, Nazareth, PA

A team of diesel people, not a call center.

Full Send Diesel is a shop full of techs, builders and parts people in Nazareth, Pennsylvania. When you call or text, you reach someone who works on these trucks and knows the parts.

Not sure what you need? Send a photo of what you are replacing with your year and engine. We will point you to the right part, confirm it is in stock, and get it moving.

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