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USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
For Your Every Summer RSVP, with Code: SUMMER15
Description
Fleece Performance Coolant Bypass Kit W/Stainless Braided lines 06-07 5.9L Auto Trans CumminsHelp eliminate the possibility of scored rear cylinders and blown freeze plugs in your 5. 9 Cummins with this Coolant Bypass Kit from Fleece Performance! The Fleece Coolant Bypass with Stainless Lines solves the problem of excessive coolant pressure before it becomes a problem. The integrated secondary thermostat locates at the back of the block and allows coolant to flow freely when at normal operating temperatures ensuring consistent temperatures
Help eliminate the possibility of scored rear cylinders and blown freeze plugs in your 5.9 Cummins with this Coolant Bypass Kit from Fleece Performance! The Fleece Coolant Bypass with Stainless Lines solves the problem of excessive coolant pressure before it becomes a problem. The integrated secondary thermostat locates at the back of the block and allows coolant to flow freely when at normal operating temperatures ensuring consistent temperatures across all six cylinders and eliminates excessive pressure. The kit comes with high quality AN o-ring fittings and AN hose connections with braided hose to ensure a leak free installation and installs in two hours or less!Increased Coolant Flow, Decreased Coolant Temperatures - The rear cylinders on the 24 Valve Cummins suffer from a lack of coolant flow, and therefore, experience the highest coolant temperatures. This can cause excessive pressure to build in the cooling system, especially the rear of the block and blow out freeze plugs externally, or the smaller diameter plugs under the valve cover, leading to a failure. Fleece's coolant bypass kit adds a secondary thermostat, that unlike other brands, works based on temperature instead of excessive pressure. This solves the problem before pressure becomes an issue by ensuring consistent temperatures across all six cylinders.
Why do I need a Fleece Coolant Bypass? - One of the biggest issues on the 24 valves is the coolant flow problem to the rear cylinders. This can cause catastrophic failure or blow outs of the freeze plugs in an over-temperature / over-pressure condition. The Fleece Coolant Bypass is one of the most important additions you make to improve the reliability and longevity of the Cummins platform.
Shipping Notes
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.5 ★★★★★
Based on 1061 reviews
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Product Reviews
★★★★★ 3
Color is true bronze runs small
Size: 7, Color: Bronze, Size: 7, Color: Bronze
Love color love style. Run extremely small and narrow and that’s saying a lot because I have small narrow feet. Had stuff on bottom of shoe as if it’s been worn
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Reviewed in the United States on March 5, 2026
★★★★★ 5
Small but comfortable.
1/2 size up. Small but comfortable.
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Reviewed in the United States on November 12, 2025
★★★★★ 4
Very sexy
Size: 9, Color: Bronze
Very nice sandals, but a little too tight around the toe areas.
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Reviewed in the United States on June 8, 2026
★★★★★ 2
Eh
Love the color and style. Too tight! And size up!!!! It will hurt ur feet for sure even with the size up.
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Reviewed in the United States on April 10, 2026
★★★★★ 4
Cute shoes
Size: 9, Color: Bronze
Fits small
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Reviewed in the United States on February 12, 2026
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