Coolant Bypass Kits
Whether you daily drive, routinely tow or have a high performance Cummins application, your rear cylinder suffers from excessive heat and pressure due to lack of coolant flow. Fleece Performance Engineering offers the tried-and-true solution for your automatic or manual trucks from 12V to current the 6.7 common rail engines. Coolant bypass kits feature OE+ fit and finish, braided lines and AN fittings for a clean, leak free installation.
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Fleece Performance Coolant Bypass® for 5.9L 12V Cummins (1994-1998) w/ Stainless Steel Braided LineSKU: FPE-CLNTBYPS-CUMMINS-12V-SS$376.95
IMPORTANT: We will not be shipping product between the dates of July 5th and July 11th. All orders will be processed and shipped the week of July 12th.
While we are closed take advantage of 5% off MSRP!












