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Fleece Performance coolant bypass kits meet the demands for more cooling that comes with increased horsepower. Your engine cooling system was designed to handle a 300-350hp engine. When you increase the power, you increase the demand on your cooling system and the possibility of problems that may lead to failure. Fleece coolant bypass kits feature a secondary thermostat that operates on temperature--not excessive pressure--solving excessive pressure problems before they become an issue by ensuring consistent temperatures across all six cylinders. Each kit includes high-quality AN O-ring fittings and AN hose connections with braided hose to ensure a leak-free installation. When there's a need for better performance, you can rely on coolant bypass kits from Fleece to supply the necessary components for assured greater performance.
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$399.99
Upgrade your leaking or corroded heater tubes with stainless steel tubes and a high-temperature silicone hose kit from Fleece Performance. This heater core kit contains everything needed to replace your heater lines from the block to the firewall. It's designed as a direct replacement for all 12-valve Cummins trucks originally equipped with air conditioning. Kit includes: * Stainless steel heater tube - replaces Cummins 3912086 * Stainless steel heater tube - replaces Cummins 3912087 * Silicone heater hose (straight tube to block) - replaces Cummins 3931522 * Silicone heater hose (90 degree tube to block) - replaces Cummins 3957649 * Silicone heater hoses (45 degree tubes to firewall) * Anodized billet aluminum hold-down clamps, billet aluminum standoff, and mounting hardware for both stock and aftermarket manifolds * Hose clamps Application notes: * This kit (S0486) is intended for use with trucks originally equipped with air conditioning. If your truck is not equipped with A/C, you'll need to supply your own 5/8 in. I.D. hose to run from the firewall ports to the stainless steel heater lines. * The silicone heater hose (tube to firewall) may require trimming for certain applications or to accommodate modifications made previously to the engine. * If your truck is equipped with an aftermarket exhaust manifold, the rear heater line standoff will not be utilized and an additional mounting bracket is provided in the kit.
Not Yet Reviewed
$379.00
Don't ruin excellent engine modifications by putting a new bend in old fuel lines. Fleece Performance high-pressure fuel lines are OEM-quality, look great, and come with M14 x 1.5 fittings. Use them for straight lines, and get one of our quality benders (not included) for perfect angles and a professional appearance. Fleece 8mm high-pressure fuel lines are available in lengths ranging from 7 in. to 24 in.
Not Yet Reviewed
$359.99
Cummins by Mopar automatic transmission cooler lines deliver transmission fluid to the cooler. These steel replacements offer an OEM fit and function, making your install easier—and providing the confidence that, when finished, the performance will be optimal. Order the lines recommended for your application.
Not Yet Reviewed
$492.99
If your braking capabilities feel softer or less responsive, you could have a collapsed or broken brake hose. Fine Lines brake hose kits provide everything needed from the necessary brake hoses to all the necessary hardware, saving you time hunting down the correct brake hose fittings and clips. Available for countless makes and models, they are offered in rubber or braided stainless for front, rear, or both front and rear jobs. Choose the kit designed for your vehicle.
Not Yet Reviewed
$287.17
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