Performance Engine Coolant Bypass Kits
- Fleece Performance Engineering®Engine Coolant Bypass Service Kit (FPE-CLNTBYPS-CUMMINS-SER-KIT)Engine Coolant Bypass Service Kit by Fleece Performance Engineering®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship....Two thermostats included to service all production years, you will only use one (1) of the included thermostats when replacing your bypass thermostatThis kit does not include the Cummins thermostat$32.27
- Fleece Performance Engineering®Stainless Steel Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0607)Stainless Steel Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0607) by Fleece Performance Engineering®. Fleece has designed coolant bypass kit with a secondary thermostat, that unlike other brands, works based on temperature instead of...Lowers coolant temperature at the rear cylindersEnsures consistent temperatures across all cylinders$422.55
- Fleece Performance Engineering®Stainless Steel Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0305)Stainless Steel Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-0305) by Fleece Performance Engineering®. Fleece has designed coolant bypass kit with a secondary thermostat, that unlike other brands, works based on temperature instead of...Lowers coolant temperature at the rear cylindersEnsures consistent temperatures across all cylinders$422.55
- Fleece Performance Engineering®Stainless Steel Coolant Bypass Kit with Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-0607-SS)Stainless Steel Coolant Bypass Kit with Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-0607-SS) by Fleece Performance Engineering®. Fleece has designed coolant bypass kit with a secondary thermostat, that unlike other brands, works...Lowers coolant temperature at the rear cylindersEnsures consistent temperatures across all cylinders$413.97
- Fleece Performance Engineering®Stainless Steel Coolant Bypass Kit with Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-0305-SS)Stainless Steel Coolant Bypass Kit with Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-0305-SS) by Fleece Performance Engineering®. Fleece has designed coolant bypass kit with a secondary thermostat, that unlike other brands, works...Lowers coolant temperature at the rear cylindersEnsures consistent temperatures across all cylinders$413.97
- Wehrli Custom Fabrication®Billet Aluminum Engine Coolant Bypass Pipe Kit (WCF100252)Billet Aluminum Engine Coolant Bypass Pipe Kit by Wehrli Custom Fabrication®. 2011-2016 LML Duramax Coolant Bypass Kit. Preformed rubber hose routes coolant from thermostat housing to firewall/heater core connection with pre-installed...Made to keep your engine running coolImproves your vehicle's performance$87.25
- Fleece Performance Engineering®O-Rings for Engine Coolant Bypass Service Kit (FPE-CLNTBYPS-CR-ORING-KIT)O-Rings for Engine Coolant Bypass Service Kit by Fleece Performance Engineering®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$9.45
- Fleece Performance Engineering®Stainless Steel Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-6.7)Stainless Steel Coolant Bypass Kit (FPE-CLNTBYPS-CUMMINS-6.7) by Fleece Performance Engineering®. Fleece has designed coolant bypass kit with a secondary thermostat, that unlike other brands, works based on temperature instead of...Lowers coolant temperature at the rear cylindersEnsures consistent temperatures across all cylinders$411.10
- Fleece Performance Engineering®Stainless Steel Coolant Bypass Kit with Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-6.7-SS)Stainless Steel Coolant Bypass Kit with Stainless Steel Braided Line (FPE-CLNTBYPS-CUMMINS-6.7-SS) by Fleece Performance Engineering®. Fleece has designed coolant bypass kit with a secondary thermostat, that unlike other brands, works...Lowers coolant temperature at the rear cylindersEnsures consistent temperatures across all cylinders$413.97
- HPS®Silicone Engine Coolant Bypass Hose Kit (57-1873-BLUE)Silicone Engine Coolant Bypass Hose Kit (57-1873-BLUE) by HPS®. Finish: Blue. If the coolant hose you have in your car is cracked or split, it cannot efficiently cool the engine, causing overheating. To prevent such a disaster, replace...Direct fit for your vehiclePerfect for daily driving and racing applications$39.10
- HPS®Silicone Engine Coolant Bypass Hose Kit (57-1873-BLK)Silicone Engine Coolant Bypass Hose Kit (57-1873-BLK) by HPS®. Finish: Black. If the coolant hose you have in your car is cracked or split, it cannot efficiently cool the engine, causing overheating. To prevent such a disaster, replace...Direct fit for your vehiclePerfect for daily driving and racing applications$39.10
- HPS®Silicone Engine Coolant Bypass Hose Kit (57-1873-RED)Silicone Engine Coolant Bypass Hose Kit (57-1873-RED) by HPS®. Finish: Red. If the coolant hose you have in your car is cracked or split, it cannot efficiently cool the engine, causing overheating. To prevent such a disaster, replace...Direct fit for your vehiclePerfect for daily driving and racing applications$39.10