APG’s Warranty ... Run with Confidence

All APG components and controls are protected by our Standard Product Warranty.

APG warrants the components and controls of their Dual Fuel Products to be free from defects in material for a period of one year from the date of the APG authorized startup. APG shall replace or repair, at their option, any product or parts, which after review or examination by an APG Certified Installer, are deemed to be defective.


APG warrants for one year against any damage to the installed engine caused by the failure of APG’s Dual Fuel Products. APG is not responsible for any consequential damages.  For engines retro-fitted by APG staff technicians or properly installed by APG certified installers, APG will, at its option, repair or replace any engine damaged by the APG Dual Fuel system after having an opportunity to inspect the engine as it is dismantled. If necessary, cause of damage may be determined by a mutually accepted neutral third party. This warranty shall be void if APG components have been altered by unauthorized agents or modified in any manner from the original installation configurations.


APG warrants that for engines in good working order, Dual Fuel shall operate within all engine manufacturers’ specifications.


APG does not warrant efficient Dual Fuel engine performance if: a) after the date of the initial installation and startup, an engine receives service maintenance which changes the engine’s operating and/or load specifications from initial startup;  b) the Dual Fuel product was installed on an engine that was not pre-qualified to be in good working order; or c) the Dual Fuel product was installed on a engine that has not received EPA approval through APG.


APG specifically makes no warranty with respect to accidental or deliberate damage resulting from: improper installation; installation by noncertified technicians; engine misuse; lack of activation; deletion or alteration of OE alarm codes for OE engine safety protection; lack of normal access to the OE CanBUS communication network; abuse; improper maintenance; fuel contamination; acts of God; vandalism and any and all conditions not related to the APG dual fuel system.


This warranty is expressly in lieu of all other warranties, expressed or implied, including warranties of merchantability and fitness for a particular purpose.


APG Dealers supplying the Dual Fuel products will give, for the benefit of their customers, a warranty no less favorable to their customers than the limited warranty given to the dealer by APG.



What does all this do to manufacturer's warranties?

APG technology does not change the base diesel engine design and warranties the Dual Fuel System components for one year after installation. Industry documentation and regulations cite the following in regard to the effects of an approved aftermarket technology on OEM warranties:


Magnusson-Moss Warranty Act of 1975 says the consumer has the freedom to choose aftermarket parts and upgrades without having the OEM warranty voided.


The Federal Trade Commission (FTC) issued a Consumer Alert in January 2011 confirming that it is in fact illegal to void warranties or deny coverage for the use of an aftermarket part.


Specifically, the EPA Alternate Fuel Conversions final rule published on April 8, 2011 states, “the clean alternative fuel conversion manufacturer would normally be held accountable for fixing problems that occur as the result of conversion” but “the OEM would generally retain responsibility for the performance of any parts or systems that retain their original function following conversion and are unaffected by the conversion.”

Contact APG today to Learn More about APG’s Natural Gas Conversion Technology!

Turbocharged Natural Gas® Dual Fuel Conversions





American Power Group, Inc.  |  2204 125th Avenue  |  Algona, IA 50511  |  866.994.7697