Excess heat is the top enemy of transmissions. If you tow, race, or drive your diesel aggressively, proper transmission fluid cooling is key to extending your transmission's lifespan. This PPE Performance Transmission Cooler is a must - have, especially when you upgrade with a high - performance transmission kit and generate extra heat. **Fits**: 2006 - 2010 GMC HD with 6.6L Duramax & Allison Transmission. **Part Number**: 124062000 **Features**: - Performance cooler with purple connector clips. - 60% larger surface area than GM coolers. - Direct bolt - on replacement with a factory fit. - Lowers fluid temperatures by an extra 20 to 30 degrees. - Aluminum construction with a black anodized finish.

Using this transmission cooler is a breeze. It's a direct bolt - on replacement, so you can easily install it in place of the old one. When you're using your vehicle, whether for towing, racing, or just normal driving, the cooler will work to keep your transmission fluid at a lower temperature. Here are some things to keep in mind. Make sure to check the connections regularly to ensure there are no leaks. If you notice any strange noises or a change in the performance of your transmission, it could be a sign that the cooler isn't working properly. For maintenance, you don't need to do too much. You can give the cooler a visual inspection every few months. If it's dirty, you can gently clean it with a soft brush and some mild detergent. This will help it keep working efficiently and extend its lifespan.