AirDog® Champ II Spin-On Caterpillar Unit using CAT Filter 1R-0749/50

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)


SKU: A7SOCA701 Category:


The Pre-Combustion Solution for Maximum Engine Efficiency! Air and vapor degrade diesel engine fuel economy, performance, and increase maintenance cost. Regardless of the type of injection system that your engine has, it will never perform at the designed efficiency level with air and vapor present in the fuel. The most noticeable results of air/vapor in fuel are increased fuel consumption, increased exhaust emissions, loss of power, and rough idle. CAT special instruction 651-1250 states: “Normally No. 2 Diesel Fuel contains about 10% air…When the amount of dissolved air exceeds 10%, fuel rate and power output are reduced.” Remove the air and vapor from the fuel and the engine will perform as never before. Benefits include Better Fuel Economy, Cleaner Exhaust, Increased Power Output, Smooth Idle, and more! Fuel mileage increases for Caterpillar 3406E, C10-13, C15, C16, & C18 engines have been from .3 MPG to 1.0 MPG. The Champ II Model A7SOCA701 is a high pressure ”spin-on” fuel air separator for Caterpillar engines using filter 1R-0749 or 1R-0750. This unit mounts easily on the secondary fuel filter head. Simply remove the filter, spin on the Champ II Model A7SOCA701, replace the fuel filter and then install the return line. The air and vapor return line connects to the engine return line with special fittings that are included with the system.

NOTE: For maximum improved performance for your CAT Engine, see our Performance Upgrade Kit (Part # UPG-CAFS) for Caterpillar 3406E, C10-13, C15, C16, & C18.

NOT INCLUDED: Filter Bases and Head (Sold Separately)

UPC: 810025917012

Additional information

Weight 7 lbs
Dimensions 6 × 15 × 4 in
Engine Make

Engine Model

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1 review for AirDog® Champ II Spin-On Caterpillar Unit using CAT Filter 1R-0749/50

  1. Rated 5 out of 5


    Put the champ ll and fuel line upgrade on my 6nz CAT and wow. It idles so smooth. Some long hills i had to split gears on i can now leave in the high hole. Truly is the most noticeable and best upgrade that i have done. Would recommend this to anybody.

    • Anna Swacker

      Thanks for the review. We are glad that you are pleased with our products.


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