Warranty Information
Manufacturer Warranties
All parts sold by Certified Dirty Idle Diesel Supply carry the original manufacturer's warranty. Warranty terms vary by brand and product line.
FASS Diesel Fuel Systems
FASS lift pumps and fuel systems carry a limited lifetime warranty against defects in materials and workmanship. Wear items (filters) are excluded.
Fleece Performance
Fleece Performance products typically carry a 1-year limited warranty against defects. PowerFlo CP3 pumps carry an extended warranty when installed with a FASS lift pump system.
S&B Filters & S&B Fuel Tanks
S&B carries a million-mile warranty on cold air intakes and a 5-year warranty on replacement fuel tanks.
KC Turbos
KC stage turbochargers carry a 1-year limited warranty against defects in materials and workmanship.
MBRP Exhaust
MBRP exhaust systems carry a limited lifetime warranty against rust-through and manufacturing defects.
S&S Diesel Motorsport
S&S CP4 disaster-prevention kits and CP4-to-DCR conversions carry a 1-year warranty.
Apparel
Apparel and merchandise carry a 30-day warranty against manufacturing defects.
Filing a Warranty Claim
To start a warranty claim, email sales@graysoncountydiesel.com with: your order number, the part number, a description of the issue, photos if applicable, and installation date. We'll coordinate the claim with the manufacturer on your behalf.
What's Not Covered
- Damage from improper installation
- Wear items (filters, gaskets, hoses)
- Damage from racing, competition, or off-road misuse beyond the part's rating
- Modifications voiding original manufacturer terms