Fluidyne Allison 1000 High Performance Transmission Fluid Cooler 11-14 GM 6.6L Duramax LML
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
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- Ships from Fluidyne High Performance
If you tow often, drive in hot weather, or put your truck to work regularly, transmission temperatures can climb faster than most people realize. Once heat starts building up, the transmission fluid breaks down quicker and the truck can start feeling less consistent under load. This Fluidyne Allison 1000 High Performance Transmission Cooler is designed to help keep temperatures under control with a much larger and more efficient cooling design than the factory cooler, helping your Duramax stay more reliable during heavy use.
Built specifically for GM 2500HD and 3500HD trucks equipped with the 6.6L LML Duramax and Allison 1000 transmission, this direct bolt-in cooler installs using the factory mounting locations for a cleaner and easier installation process. The aerospace-grade aluminum bar plate construction, proprietary fin design, and dense fins-per-inch layout work together to deliver over 4 times the heat exchanging capacity compared to the stock cooler while maintaining minimal pressure drop. Fully welded internal splitter plates help prevent contamination between hot and cold side fluids for added durability and long-term reliability.
Featuring a dual-pass design, -10 AN female O-ring fittings, and a durable silver powder-coated finish with a heat-wicking compound, this cooler is built to handle towing, hauling, daily driving, and higher performance applications without sacrificing drivability. Measuring 27 inches long, 8.62 inches tall, and 2.25 inches deep, it offers serious cooling performance in a direct replacement package.
If you tow often, drive in hot weather, or put your truck to work regularly, transmission temperatures can climb faster than most people realize. Once heat starts building up, the transmission fluid breaks down quicker and the truck can start feeling less consistent under load. This Fluidyne Allison 1000 High Performance Transmission Cooler is designed to help keep temperatures under control with a much larger and more efficient cooling design than the factory cooler, helping your Duramax stay more reliable during heavy use.
Built specifically for GM 2500HD and 3500HD trucks equipped with the 6.6L LML Duramax and Allison 1000 transmission, this direct bolt-in cooler installs using the factory mounting locations for a cleaner and easier installation process. The aerospace-grade aluminum bar plate construction, proprietary fin design, and dense fins-per-inch layout work together to deliver over 4 times the heat exchanging capacity compared to the stock cooler while maintaining minimal pressure drop. Fully welded internal splitter plates help prevent contamination between hot and cold side fluids for added durability and long-term reliability.
Featuring a dual-pass design, -10 AN female O-ring fittings, and a durable silver powder-coated finish with a heat-wicking compound, this cooler is built to handle towing, hauling, daily driving, and higher performance applications without sacrificing drivability. Measuring 27 inches long, 8.62 inches tall, and 2.25 inches deep, it offers serious cooling performance in a direct replacement package.
Diesel Power Products directs warranty claims to the respective manufacturer; coverage and duration depend on that manufacturer and product. Its one-year manufacturer-defect warranty applies only to products manufactured by Power Products Unlimited Inc., not all products it sells. Manufacturer inspection is required; DPP does not pay inspection/return shipping or labor.
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Diesel Power Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Diesel Power Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- Diesel Power Products states a 30-day window from receipt for eligible new, uninstalled, unopened and complete items in original packaging, with prior approval/RMA. Custom tuners and specified opened tools are excluded. Customer pays return shipping; original outbound shipping, including initially free shipping, is deducted. No standard restocking percentage is stated for ordinary approved returns. Based on what Diesel Power Products offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- Diesel Power Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–7 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Diesel Power Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.