Diesel Cylinder Heads

Diesel cylinder heads for heavy-duty and Class 8 engines — Cummins, Caterpillar, Detroit, Paccar, Mack, Volvo, and International. This collection covers PAI Industries aftermarket heads alongside our own JAK'S Diesel Heads in Stage 1-3, so you can match a stock replacement or step up to a performance build. Ships same-day from Colorado; free freight on orders over $1,000.

Not sure which head fits? Send us your OEM, competitor, or superseded part number and we'll confirm the match before you buy. Use the OEM Cross-Reference tool or request a quote — cross-referencing numbers is what we do best.