FASS Fuel Systems FASS Drop-in Series Diesel Fuel System 2020-2026 LM2/LZ0 Sierra & Silverado Trucks
Fits 2020-2026 3.0L Duramax I6 Diesel (LM2) · 3.0L Duramax I6 Diesel (LZ0)
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Price tracked 5 times since Sep 5, 2026 across the stores we check daily: low $503.99, high $548.99, currently $503.99.
where to buy · 2 retailers tracked
Fuel system parts move more fuel, or move it more reliably, than the factory setup was built to. This one is the Fass FASS Drop-in Series Diesel Fuel System 2020-2026 LM2/LZ0 Sierra & Silverado Trucks, listed to fit the 2020-2026 GMC Sierra 1500.
why this one — On a diesel this is usually a reliability buy before it is a power buy. Match the pump to what the tune actually asks for. DmaxStore lists it at $503.99, and the fitment above is what the listing itself states, not a guess.
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No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.