The best set of power harnesses on the market. Control fuel rate at your finger tips. Built and tested by a CAT master mechanic. Dyno results from 10 different trucks show increases in horsepower around 90 HP and torque around 250 ft. lbs. Increases in fuel mileage have been from .5 mpg to as high as 2 mpg depending on application. 1 year warranty and all are made in the USA. 100% money back guarantee.
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Save fuel and let your engine run better! Built and tested by a CAT Master Mechanic. Tested for two years before being sold to the public. Many have imitated but never duplicated the Diesel Freak brand harnesses. Increases in fuel mileage have been from .5 mpg to as high as 2 mpg depending on application. These harnesses were built for one thing, to increase fuel mileage. They can save you thousands of dollars in fuel costs. 1 year warranty and are made in the USA. 100% money back guarantee.
- Get More Torque
- Increase Fuel Efficiency
- Crisp Throttle Response
- Virtually Eliminate Lag
- Increase Longevity of Your Motor
- 1 Year Warranty
- 60 Day Money Back Gurantee
CAT ADJUSTABLE POWER HARNESSDo you own an electronic CATERPILLAR Engine?
Want to Save Fuel and Run Better Too?
These are the best set of power harnesses on the market. This adjustable set up gives you the ability to control fuel rate at your finger tips. They have been built and tested by a CAT master mechanic.
Dyno results from 10 different trucks show increases in horsepower around 90 hp and torque around 250 ft lbs. $189.00
CUMMINS ADJUSTABLE FUEL PRESSURE HARNESSOwn a Cummins ISX Engine?
Adjustable fuel pressure harness for a late 03 to 2010 cummins ISX engine.
Increases in power are adjustable from stock hp to 100 plus gain, Torque gains have been as high as 250 ft lbs.
This set up will increase your fuel mileage anywhere from .5 mpg to 1.75mpg. This harness will wake up your ISX and give that extra fuel mileage that is needed. $189.00
This was the greatest investment I ever put into my truck. Amazing. And the price was even more amazing!
– Greg Smith, MI
Superb product. Amazing returns and results. And the cost is a No Brainer!
– Robert Cortez, IN
The only thing I regret is not installing my harness SOONER! Thank you Diesel Freak! You guys made a great product.
– Jeff Morse, FL
I was skeptical, but for the price I was willing to try it. Boy am I glad I did! Diesel Freak really delivered. Fuel savings alone paid for the harness within the first 2 days!
– Chad Brant, TX