![Fleece Performance Coolant Bypass Kit 98.5-02 Dodge 5.9L Cummins 24 Valve](graphics/00000001/images/product/large/9656_1__360x360.jpg)
![Fleece Performance Coolant Bypass Kit 94-98 12 Valve Cummins](graphics/00000001/images/product/large/10070_360x360.jpg)
![Fleece Performance Rear Engine Cover Coolant Return Plug 11-16 GM Duramax LML](graphics/00000001/images/product/large/12555_360x360.jpg)
![Fleece Performance Coolant Bypass Hose Brackets 03-18 Ram 5.9L / 6.7L Cummins](graphics/00000001/24/FPE-CLNT-HS-BRKT_360x256.jpg)
![Fleece Performance Coolant Tank 13-18 Ram 6.7L Cummins](graphics/00000001/FPE_34235_360x360.jpg)
![Fleece Billet Coolant Block Off Plate 01-19 6.6L GM Duramax](graphics/00000001/18/plate1_360x360.jpg)
![Fleece Performance Coolant Bypass Kit 03-07 5.9L Manual Trans Cummins](graphics/00000001/22/fpe-clntbyps-cummins-man_1_360x184.jpg)
![Fleece Performance Coolant Bypass Kit W/Stainless Braided lines 03-05 5.9L Auto Trans Cummins](graphics/00000001/15/0305ssweb_360x211.jpg)
![Fleece Performance Coolant Bypass Kit W/Stainless Braided lines 03-07 5.9L Manual Trans Cummins](graphics/00000001/images/product/large/19135_360x360.jpg)
![Fleece Performance Coolant Bypass Kit W/Stainless Braided lines 06-07 5.9L Auto Trans Cummins](graphics/00000001/15/fpe-clntbyps-cummins-0607-ss_360x222.jpg)
![Fleece Performance Coolant Bypass Kit W/Stainless Braided lines 94-98 12 Valve Cummins](graphics/00000001/15/FPE-CLNTBYPS-CUMMINS-12V-SS_360x295.jpg)
![Fleece Performance Coolant Bypass Kit W/Stainless Braided Lines 98.5-02 Dodge 5.9L Cummins 24 Valve](graphics/00000001/15/FPE-CLNTBYPS-CUMMINS-VP-SS_360x237.jpg)
While you may have heard of a Coolant Bypass Kit, you may be uncertain what it does and why you'd want to outfit your Cummins with one. In short, the factory routing of coolant circulation in your eng ... read more
While you may have heard of a Coolant Bypass Kit, you may be uncertain what it does and why you'd want to outfit your Cummins with one. In short, the factory routing of coolant circulation in your engine causes the rear cylinders to run at a substantially hotter temperature compared to the front cylinders, which can cause catastrphic failure of blow outs of the freeze plugs. By adding a coolant bypass kit, coolant is rerouted to give properly distributed circulation of the coolant to all six cylinders, resulting in an overall cooler running engine. Fleece Performance Engineering manufactures a wide range of vehicle specific Coolant Bypass Kits to aid in extending the life of your engine.
Not Available
Not Available