Fleece Performance Coolant Bypass Kits

5.0 out of 5 stars 6 Customer Reviews

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 3

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 connectio

Results 1 - 11 of 11

Fleece Performance Coolant Bypass Kits for 2003-2007 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-MAN

COOLANT BYPASS KIT, CUMMINS (2003-2007 MANUAL TRANSMISSION)

Part Number: FLE-S0106

5.0 out of 5 stars ( 2 )

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Fleece Performance Coolant Bypass Kits for 2013-2018 2500, 3500 - FPE-CLNTBYPS-CUMMINS-1318

Coolant Bypass Kit for 2013-2018 RAM with 6.7L Cummins

Part Number: FLE-S0450

5.0 out of 5 stars ( 1 )

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Fleece Performance Coolant Bypass Kits FPE-CLNTBYPS-CUMMINS-0712

Water Bypass Kit, Coolant Bypass, Hose, Black Aluminum Fittings, Dodge, Ram, 6.7L Diesel, Kit

Part Number: FLE-S0451

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Fleece Performance Coolant Bypass Kits for 1994-1998 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-12V-SS

Coolant Bypass, 12V Coolant Bypass Kit (1994-1998) w/ Stainless Steel Braided Line

Part Number: FLE-S0306

Not Yet Reviewed

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Fleece Performance Coolant Bypass Kits for 1998-2002 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-VP

Water Bypass Kit, Billet Aluminum Spacer, Black Anodized, Hose, Dodge, 5.9L Diesel, Kit

Part Number: FLE-S0103

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 22, 2025 if ordered today

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Estimated Ship Date: Dec 22, 2025 if ordered today

Fleece Performance Coolant Bypass Kits for 2003-2005 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-0305

Water Bypass Kit, Coolant Bypass, Spacer, Billet Aluminum, Black Anodized, Hose, for Use with Automatic Transmission Trucks Only, Dodge, Kit

Part Number: FLE-S0109

5.0 out of 5 stars ( 1 )

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Fleece Performance Coolant Bypass Kits for 2006-2007 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-0607

Water Bypass Kit, Coolant Bypass, Spacer, Billet Aluminum, Black Anodized, Hose, for Use with Automatic Transmission Trucks Only, Dodge, Kit

Part Number: FLE-S0110

Not Yet Reviewed

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Fleece Performance Coolant Bypass Kits for 2019-2024 2500, 3500 - FPE-CLNTBYPS-CUMMINS-19

Coolant Bypass Kit for 2019+ Ram with 6.7L Cummins

Part Number: FLE-S0399

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

Fleece Performance Coolant Bypass Kits for 1998-2002 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-VP-SS

Coolant Bypass, VP Coolant Bypass Kit (1998.5-2002) w/ Stainless Steel Braided Line

Part Number: FLE-S0305

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Fleece Performance Coolant Bypass Kits for 2003-2007 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-MAN-SS

Water Bypass Kit, Coolant Bypass, Spacer, Billet Aluminum, Black Anodized, Hose, Models with Manual Transmission, Dodge, 5.9L Diesel, Kit

Part Number: FLE-S0301

Not Yet Reviewed

Estimated Ship Date: Dec 18, 2025 if ordered today

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Estimated Ship Date: Dec 18, 2025 if ordered today

Fleece Performance Coolant Bypass Kits for 1994-1998 RAM 2500, RAM 3500 - FPE-CLNTBYPS-CUMMINS-12V

Water Bypass Kit, Billet Aluminum Spacer, Black Anodized, Hose, Dodge, 5.9L Diesel, Kit

Part Number: FLE-S0104

Not Yet Reviewed

Estimated Ship Date: Dec 10, 2025 if ordered today

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Estimated Ship Date: Dec 10, 2025 if ordered today

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