



Fluidyne Allison 1000 High Performance Transmission Fluid Cooler 06-10 GM 6.6L Duramax LBZ/LMM
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 directly from the supplier. The final shipping cost will be shown before payment.
- Ships from Fluidyne High Performance
Anyone who has spent time pulling a trailer through the mountains, sitting in summer traffic, or making repeated long drives in a Duramax knows how quickly transmission temperatures can creep up. The factory cooler works fine for normal driving, but once the truck starts working harder, extra cooling capacity can make a noticeable difference in long-term reliability and consistent performance. This Fluidyne Allison 1000 High Performance Transmission Fluid Cooler is designed to give GM 6.6L LBZ and LMM Duramax trucks a much larger and more efficient cooling solution than stock.
Built with aerospace-grade aluminum bar plate construction, a proprietary fin design, and one of the densest fins-per-inch layouts available, this cooler delivers over 4 times the heat exchanging capacity compared to the stock cooler while keeping pressure drop low. Fully welded internal splitter plates help prevent contamination between hot and cold side fluids, adding durability and long-term reliability.
This dual-pass cooler is a direct bolt-in replacement that uses the existing factory mounting locations for easier installation. Finished in a silver powder coat with a proprietary heat-wicking compound, it is built to handle demanding driving conditions while giving your Allison 1000 transmission a stronger, more reliable cooling upgrade.
Anyone who has spent time pulling a trailer through the mountains, sitting in summer traffic, or making repeated long drives in a Duramax knows how quickly transmission temperatures can creep up. The factory cooler works fine for normal driving, but once the truck starts working harder, extra cooling capacity can make a noticeable difference in long-term reliability and consistent performance. This Fluidyne Allison 1000 High Performance Transmission Fluid Cooler is designed to give GM 6.6L LBZ and LMM Duramax trucks a much larger and more efficient cooling solution than stock.
Built with aerospace-grade aluminum bar plate construction, a proprietary fin design, and one of the densest fins-per-inch layouts available, this cooler delivers over 4 times the heat exchanging capacity compared to the stock cooler while keeping pressure drop low. Fully welded internal splitter plates help prevent contamination between hot and cold side fluids, adding durability and long-term reliability.
This dual-pass cooler is a direct bolt-in replacement that uses the existing factory mounting locations for easier installation. Finished in a silver powder coat with a proprietary heat-wicking compound, it is built to handle demanding driving conditions while giving your Allison 1000 transmission a stronger, more reliable cooling upgrade.
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.