The XDP X-TRA Cool L5P Transmission Cooler Thermostatic Bypass XD396 helps lower temperatures and prolong the life of the Allison transmission in your 2017-2019 GM 6.6L Duramax L5P. From the factor...
This transmission is ideal for high-performance vehicles and heavy-duty trucks that require a reliable and durable transmission that can handle high power output. The Stage 2 Allison is built with ...
Randy's Transmissions GM Allison 1000 Stage 3 Transmission 900HP Max
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