Fluidyne Allison 1000 High Performance Transmission Fluid Cooler 03-05 GM 6.6L Duramax LB7/LLY
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- Ships from Fluidyne High Performance
If you use your Duramax for towing, hauling, long road trips, or daily driving in warmer temperatures, transmission heat can become a bigger issue than most people expect. This Fluidyne Allison 1000 High Performance Transmission Fluid Cooler is designed to give GM 6.6L LB7 and LLY Duramax trucks a major increase in cooling capacity over the factory cooler, helping your Allison transmission stay cooler and more consistent under heavy use.
Built with aerospace-grade aluminum bar plate construction and a proprietary high-efficiency fin design, this dual-pass cooler delivers over 4 times the heat exchanging capacity compared to the stock transmission cooler while maintaining minimal pressure drop. The dense fins-per-inch layout improves cooling efficiency, while fully welded internal splitter plates help prevent contamination between hot and cold side fluids for added long-term durability and reliability.
This cooler is designed as a direct bolt-in replacement using the factory mounting locations for a cleaner and easier installation process. Finished in a durable silver powder coat with a proprietary heat-wicking compound, it is built to handle demanding towing conditions, heavy workloads, and everyday driving while helping protect your Allison 1000 transmission from excessive heat.
If you use your Duramax for towing, hauling, long road trips, or daily driving in warmer temperatures, transmission heat can become a bigger issue than most people expect. This Fluidyne Allison 1000 High Performance Transmission Fluid Cooler is designed to give GM 6.6L LB7 and LLY Duramax trucks a major increase in cooling capacity over the factory cooler, helping your Allison transmission stay cooler and more consistent under heavy use.
Built with aerospace-grade aluminum bar plate construction and a proprietary high-efficiency fin design, this dual-pass cooler delivers over 4 times the heat exchanging capacity compared to the stock transmission cooler while maintaining minimal pressure drop. The dense fins-per-inch layout improves cooling efficiency, while fully welded internal splitter plates help prevent contamination between hot and cold side fluids for added long-term durability and reliability.
This cooler is designed as a direct bolt-in replacement using the factory mounting locations for a cleaner and easier installation process. Finished in a durable silver powder coat with a proprietary heat-wicking compound, it is built to handle demanding towing conditions, heavy workloads, and everyday driving while helping protect your Allison 1000 transmission from excessive heat.
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.