Cooling

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

Complete kit to service your Fleece Performance Coolant Bypass - Includes all O-rings, fasteners, and a new thermostat. Two thermostats included to...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

All new Fleece Performance coolant bypass for the 2019+ RAM with 6.7L Cummins! Our patent pending design seamlessly integrates with your truck for ...

The Fleece Performance coolant bypass for the 2013-2018 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish. Featu...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

The Fleece Performance coolant bypass for the 2007.5-2012 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish. Fea...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

Replacement O-ring Kit for all Fleece Cummins Coolant Bypass Kits includes 3 new square cut O-rings, 1 new standard O-ring, and 2 new AN fitting O-...

Fleece Performance 2003-2016 Cummins Coolant Bypass Brackets (Set of Two)Warranty

2013-2018 6.7L Cummins A/C Line Reroute Kit - If you are looking to do an aftermarket turbo set up like a 2nd Gen Swap Kit, or Compound Kit then th...

Heat Shroud(TM) solves the problem of heat and abrasions causing failure of lines, hoses and wires without the need to disconnect them. Heat Shroud...

Boom Mat Damping Material solves the problem of noise, vibrations, squeaks and rattles that come from roads, stereos, engines & more. Boom Mat ...

Boom Mat Damping Material solves the problem of noise, vibrations, squeaks and rattles that come from roads, stereos, engines & more. Boom Mat ...

Chill Charger for water-to-air intercoolers maximizes thermal transfer to lower air intake temperatures while also protecting core corrosion, elect...

Heater Hotter(TM) solves the problem of slow warm up times and waiting for your vehicle to thaw in winter months.Heater Hotter is specially formula...

Radiator Relief(TM) solves the problem of high engine temps by reducing coolant temperatures up to 30 degrees. Radiator Relief is an excellent meth...

The Miata Transmission Tunnel Heat Shield Kit solves the problem of hot interiors in NC Miata's. Direct replacement for the factory heat shield tha...

Heat Shroud GOLD(TM) solves the problem of heat and abrasions causing failure of lines, hoses and wires without the need to disconnect them. High t...

Heat Screen GOLD(TM) solves the problem of heat from engines and exhaust intruding into interiors and components. Manufactured from our high temper...

Heat Shroud(TM) solves the problem of heat and abrasions causing failure of lines, hoses and wires without the need to disconnect them. Heat Shroud...

Heat Shroud GOLD(TM) solves the problem of heat and abrasions causing failure of lines, hoses and wires without the need to disconnect them. High t...

Heat Shroud(TM) solves the problem of heat and abrasions causing failure of lines, hoses and wires without the need to disconnect them. Heat Shroud...

Heat Screen(TM) solves the problem of heat from engines and exhaust intruding into interiors and components. Heat Screen(TM) offers an excellent wa...

Heat Screen(TM) solves the problem of heat from engines and exhaust intruding into interiors and components. Heat Screen(TM) offers an excellent wa...

Adhesive backed transmission pan heat shield installs between the transmission pan and cross over pipe on JK Wranglers with VLP 42RLE 4 Speed trans...

Adhesive backed transmission pan heat shield installs between the transmission pan and cross over pipe on JK Wranglers with W5A580 transmissions. I...

Adhesive backed transmission pan heat shield installs between the transmission pan and cross over pipe on JL Wranglers & JT Gladiators with 850...

Adapt-A-Shield XT is a formable, flexible, extreme heat barrier to reflect engine and exhaust heat from components and protect against abrasion. It...

DEI's ORIGINAL Titanium(TM) exhaust wrap, with LR Technology, is made from pulverized lava rock, stranded into a fiber material and woven into a pr...

DEI's ORIGINAL Titanium(TM) exhaust wrap, with LR Technology, is made from pulverized lava rock, stranded into a fiber material and woven into a pr...

DEI's ORIGINAL Titanium(TM) exhaust wrap, with LR Technology, is made from pulverized lava rock, stranded into a fiber material and woven into a pr...

DEI's ORIGINAL Titanium(TM) exhaust wrap, with LR Technology, is made from pulverized lava rock, stranded into a fiber material and woven into a pr...

DEI's ORIGINAL Titanium(TM) exhaust wrap, with LR Technology, is made from pulverized lava rock, stranded into a fiber material and woven into a pr...

DEI's ORIGINAL Titanium(TM) exhaust wrap, with LR Technology, is made from pulverized lava rock, stranded into a fiber material and woven into a pr...

DEI's ORIGINAL Titanium(TM) exhaust wrap, with LR Technology, is made from pulverized lava rock, stranded into a fiber material and woven into a pr...

Exhaust Wrap Kits solve the problem of knowing exactly what you need to wrap exhaust pipes and manifolds and dose it in an all-in-one kit. DEI Pipe...

Glass Fiber Exhaust Wraps solve the problem of extreme underhood heat and improve exhaust system performance. Wrapping headers and down pipes is an...

DEI Pipe Wrap is used in many types of applications for reducing unwanted and harmful heat under the hood and from entering the driver compartment ...

Glass Fiber Exhaust Wraps solve the problem of extreme underhood heat and improve exhaust system performance. Wrapping headers and down pipes is an...

An all-in-one kit for wrapping a set of headers or motorcycle pipes. Automotive kit includes two 2 in. x 50ft rolls of exhaust wrap one can of HT S...

Glass Fiber Exhaust Wraps solve the problem of extreme underhood heat and improve exhaust system performance. Wrapping headers and down pipes is an...

Glass Fiber Exhaust Wraps solve the problem of extreme underhood heat and improve exhaust system performance. Wrapping headers and down pipes is an...