Engine Upgrades
KM 12 Valve Billet Valve Cover-Notched for Stock Lines (123012-2N) for 1989-1993 First Gen Cummins 5.9L
Billet aluminum valve cover for 1989–1993 Cummins 5.9L 12-valve engines. Features a precision-machined notch for stock injection line clearance, integrated O-ring sealing, and a durable performance-ready design.
KM 12 Valve Billet Valve Cover (123012-1) for 1989-1998 Cummins 5.9L
Billet aluminum valve cover for 5.9L Cummins 12-valve engines. Designed for improved sealing, durability, and a clean performance appearance. Includes O-ring seal and stainless hardware.
KM 12 Valve Billet Valve Cover-Black Anodized-Notched for Stock Lines (123012-1N-Black) for 1989-1998 Cummins 5.9L
Black-anodized billet aluminum valve cover for 5.9L Cummins 12-valve engines. Features a precision-machined notch for stock injection line clearance, integrated O-ring sealing, and a premium corrosion-resistant finish.
KM 12 Valve Billet Timing Front Cover w/o 12AN Port (012510-1GN) for 1989-1993 Cummins 5.9L
Billet aluminum timing front cover for 1989–1993 first-generation 5.9L Cummins engines. Features a solid P-pump cover plate with no –12AN port, providing a sealed OEM-style setup with improved strength, precision, and durability.
KM 12 Valve Billet Timing Front Cover w/ 12AN Port (012510-1GN-12AN) for 1989-1993 Cummins 5.9L
Billet aluminum timing front cover for 1989–1993 first-generation 5.9L Cummins engines. Features a P-pump cover plate with an integrated –12AN port for upgraded crankcase ventilation or custom plumbing setups. Includes stainless hardware and block-off plate.
KM 12 Valve Billet Valve Cover fits Cummins Notched for Stock Lines (123012-1N) for 1989-1998 Cummins 5.9L
Billet aluminum valve cover for 5.9L Cummins 12-valve engines. Features precision machining, integrated O-ring sealing, and a notched design to clear factory injection lines for easy, bolt-on installation.
KM 12V Billet Valve Cover O-ring and Seal Kit (KM-Seal-Kit-5.9L-02) for 1989-2002 Cummins 5.9L
A service-ready sealing kit containing (6) M8 copper crush washers and (6) –158 O-rings. Ideal for maintaining fuel, oil, and mechanical components on 5.9L Cummins engines.
KM 12V and 24V Billet Tappet O-ring and Seal Kit (KM-Seal-Kit-5.9L) for 1989-2002 Cummins 5.9L
A complete sealing kit that includes 1/8″ O-ring cord, M8 copper crush washers, and -147 O-rings. Designed for rebuilding, resealing, or maintaining various Cummins components where durable, high-temperature sealing is required.
KM 12 Valve Billet Tappet Cover – Black Anodized (120510-2V2-Black) fits 1989-2002 Cummins 5.9L
Black-anodized billet aluminum tappet cover designed for 1989–2002 Cummins 5.9L 12-valve and P-pump 24-valve engines. Precision-machined with integrated baffling, improved valvetrain clearance, and an O-ring block seal for a clean, leak-free installation. Durable anodized finish provides added corrosion protection and a sleek appearance.
KM 12 Valve Billet Tappet Cover (120510-2V2) for 1989-2002 Cummins 5.9L
Precision CNC-machined billet tappet cover designed for 1989–2002 5.9L Cummins 12-valve and P-pump 24-valve engines. Features integrated baffling, enhanced roller rocker clearance, O-ring block seal and durable stainless hardware for a reliable, high-performance upgrade.
