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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28
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Description
Mishimoto 03-07 Dodge Ram 5.9L Cummins Replacement Transmission CoolerThe factory transmission oil cooler on your 2003 2007 Dodge Ram 5. 9L Cummins is a liquid to liquid cooling unit, utilizing the engines cooling system to cool the transmission fluid during warm outside temperatures and warm the fluid during cold outside temperatures. This design is tried and true, and it works. Until it doesnt. When they wear out and fail, it can leak coolant into your transmission fluid. Mixing coolant into your transmission fluid
The factory transmission oil cooler on your 2003-2007 Dodge Ram 5.9L Cummins is a liquid-to-liquid cooling unit, utilizing the engine’s cooling system to cool the transmission fluid during warm outside temperatures and warm the fluid during cold outside temperatures. This design is tried and true, and it works. Until it doesn’t. When they wear out and fail, it can leak coolant into your transmission fluid. Mixing coolant into your transmission fluid can have catastrophic results, and nobody wants to spend thousands of dollars to rebuild or replace their transmission if it can be avoided. The Mishimoto Replacement Transmission Oil Cooler is a direct fit, OEM replacement that requires no modification to install. Made to OEM specifications, this transmission oil cooler is equivalent to an OEM part. By replacing your transmission cooler preventatively, you can save your transmission from falling victim to premature failure. As with all of our products, this cooler is backed by our signature Mishimoto Lifetime Warranty.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2003 | Dodge | Ram 1500 | Laramie |
| 2003 | Dodge | Ram 1500 | SLT |
| 2003 | Dodge | Ram 1500 | ST |
| 2003,2005-2007 | Dodge | Ram 2500 | Laramie |
| 2003-2007 | Dodge | Ram 2500 | SLT |
| 2006-2007 | Dodge | Ram 2500 | Sport |
| 2003-2007 | Dodge | Ram 2500 | ST |
| 2006-2007 | Dodge | Ram 2500 | TRX4 |
| 2003-2007 | Dodge | Ram 3500 | Laramie |
| 2003-2007 | Dodge | Ram 3500 | SLT |
| 2006-2007 | Dodge | Ram 3500 | Sport |
| 2003-2007 | Dodge | Ram 3500 | ST |
| 2007 | Dodge | Ram 3500 | TRX4 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
Ignore the “Frequently returned item” message!
Color: Walnut Color, Color: Walnut Color
I usually don’t write reviews but I thought I should for these shelves. I was a little skeptical on these based on the “Frequently returned item” message but I decided to give them a shot and I’m glad I did! These shelves are solid and well made, beautiful color, fit perfectly in the corner of my wall, and are easy to hang. I’m not sure why they are frequently returned but I will be ordering another set for my wife’s side of the room.
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Reviewed in the United States on March 16, 2026
★★★★★ 5
Nice Shelves
Color: Acacia
Nice looking shelves and installed very easily.
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Reviewed in the United States on April 7, 2026
★★★★★ 4
Good looking, quality control needs improvement
Color: Acacia
The shelves are fine but one of the mounting blocks was glued on backwards which meant the holes for countersinking the mounting screwed ended up on the wrong side. It was easy to drill new countersinks so no big deal but a star is docked for quality control. They are cheap and looks good so I can't complain much.
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Reviewed in the United States on December 6, 2025
★★★★★ 5
Lovely, space saving and easy to install
Color: Acacia
LOVE THESE SHELVES! So easy to install and they look fantastic in any room. Good price point and very stable. Love the color of the wood, perfect for small spaces.
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Reviewed in the United States on February 10, 2026
★★★★★ 5
Good looking shelves
Color: Acacia
The shelves look great and are exactly what was needed for the application chosen. It wasn’t an issue for me, but the mounting hardware was missing. I always use my own wall anchors so it didn’t affect me, but it may have others.
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Reviewed in the United States on April 28, 2026