Engine Coolant Water Bypass Kit for 5.9l 6.7l Cummins Dodge Ram

Name: KB Diesel Performance LLC Engine Coolant Water Bypass Kit for 5.9l 6.7l Cummins Dodge Ram - Engine Coolant Water Bypass Kit for 5.9l 6.7l Cummins Dodge Ram
Brand: KB Diesel Performance LLC
SKU: 46430224482539
Price: 109.95 USD
Availability: InStock
Rating: 3.6667 (4 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$109.95

Quantity

Color

Black

Quantity

Description

Includes:
Braided Hose
AN Fittings
O-Rings
Hose Mounting Clamps
Rear Thermostat housing
54mm, 180°F (82°C) Thermostat

Maintains consistent temperatures from the rear of the engine to the front
Lowers coolant temperature at the rear cylinders
Prevents damaging coolant pressure build up which can lead to head gasket failure

Fits:
2003-2007 D...

Reviews

3.7

6 ratings

Will begin installation tomorrow, but as of right now, it looks wonderful very heavy duty. I love the quality thank you KB Diesel Performance.

Manny · August 24, 2026

Unfortunately, this product arrived defective and unusable, therefore set back my project by over 2 weeks. The thermostat spacer was improperly/incompletely tapped for the fitting. I got my local machine shop to re tap the threads only to discover that the original hole wasn't tapped perpendicular. So now, even though the fitting would thread into the coolant spacer, it would not seal.

Michael · July 19, 2026

doesnt fit very disappointing

Kenneth · August 17, 2026

Delivery & Returns

Returns accepted within 30 days

Exclusions may apply. See full policy

KB Diesel Performance LLC

4.9 (285)

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Description

Includes:
Braided Hose
AN Fittings
O-Rings
Hose Mounting Clamps
Rear Thermostat housing
54mm, 180°F (82°C) Thermostat

Maintains consistent temperatures from the rear of the engine to the front
Lowers coolant temperature at the rear cylinders
Prevents damaging coolant pressure build up which can lead to head gasket failure

Fits:
2003-2007 D...

Reviews

3.7

6 ratings

Will begin installation tomorrow, but as of right now, it looks wonderful very heavy duty. I love the quality thank you KB Diesel Performance.

Manny · August 24, 2026

Michael · July 19, 2026

doesnt fit very disappointing

Kenneth · August 17, 2026

Delivery & Returns

Returns accepted within 30 days

Exclusions may apply. See full policy

KB Diesel Performance LLC

4.9 (285)

Engine Coolant Water Bypass Kit for 5.9l 6.7l Cummins Dodge Ram

Reviews

Delivery & Returns

KB Diesel Performance LLC

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