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ENGINE PARTS

ENGINE PARTS — 2013–2018 DODGE RAM 6.7L CUMMINS

From daily-driven work trucks to competition builds, CPP Diesel carries the engine hard parts your 2013–2018 Ram 2500/3500 6.7L Cummins needs—studs/bolts, gaskets & seals, cams & valvetrain, dampers, oil system, barring tools, freeze plugs, and more. Shop proven components below (all links go to live CPP product or category pages).


Studs / Bolts

Gaskets & Seals

Cams, Pushrods, Valve Springs & Rockers

Harmonic Dampers

Oil System

Freeze Plugs & Block Hardware

Tools & Service

Rebuild Kits & Long Blocks


Frequently Asked Questions

Head studs: ARP vs. Gator—what should I run?
ARP 625+ is the go-to for high cylinder pressure and competition. Gator HSK5967C is a strong, budget-friendly choice for tuned/towing builds.
Which cam and springs for 4,000 RPM sled pulling?
Pair a 188/220-style cam (Hamilton 188/220) with 110# springs and HD pushrods. Verify piston-to-valve clearance on assembled specs.
Do I need a damper upgrade?
For big injectors, compounds, or heavy towing, the Fluidampr 920321 improves torsional control and bearing life—cheap insurance on a worked 6.7.
Which oil pump/oil cooler should I choose?
OEM Cummins 4939587 restores base pressure; pair with the 3975818 oil cooler if temps or miles are high.
MLS head gasket: which part number?
Use Cummins 5621817 or MAHLE HS54774-1 set for ’07.5–’18 6.7L.