Mishimoto Transmission Cooler for 2012-2018 Jeep Wrangler JK with Thermostati...

Mishimoto Transmission Cooler Thermostatic Bypass for 2012–2018 Jeep Wrangler JK Keep your JK’s transmission cooler, healthier, and more reliable . Designed specifically for 2012–2018 Jeep Wrangler JK models, this Mishimoto thermostatic bypass valve optimizes fluid flow to your transmission cooler—preventing overheating and eliminating unnecessary flow restrictions. Key Benefits Serviceable, removable thermostat — swap the included thermostat for the supplied full bypass for constant full flow in hot climates. Improved flow — greater flow than the factory valve ensures the Mishimoto cooler performs at peak efficiency even with a thermostat installed. Stock-calibrated — included thermostat opens at 160°F (71°C); compatible with other Mishimoto thermostat options for customization. Durable construction — aircraft-grade anodized aluminum resists corrosion and stands up to off-road abuse. Direct-fit installation — designed as a simple replacement for the original valve with no modifications required. Mishimoto Lifetime Warranty — backed by a trusted warranty for long-term peace of mind. Why it matters Factory thermostatic valves can fail or act as an unnecessary restriction in warm climates, leading to overheating or reduced cooler effectiveness. This performance bypass valve prevents overcooling during warm-ups, restores reliable flow, and gives you the flexibility to run full-time cooling when you need it. Ideal for trail riders, daily drivers, and heavy-haulers who demand reliable transmission temperatures and extended transmission life.