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Caterpillar C16 & C18 Parts

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Parts for the Caterpillar C16 and C18 big-bore diesels — the high-horsepower end of CAT's heavy-duty lineup. The C16 is a close, higher-output relative of the C15/3406E big-bore family, while the C18 is CAT's larger-displacement big-bore. Shop cylinder heads, fuel injectors, turbochargers, gaskets, and complete inframe and overhaul rebuild kits, with PAI Industries aftermarket coverage and JAK'S Diesel performance heads.

Not sure a number fits your block? Send us the OEM, competitor, or superseded part number and we'll cross-reference it. Most orders ship same-day from Colorado, with free freight over $1,000. Call or text (720) 445-6249 or request a quote.

Showing 36 of 393 Caterpillar C16 & C18 Parts
341352 Cat / Caterpillar SPRING RETAINER
Caterpillar · Models: 3406E / C15 / C16 / C18
341352 Cat / Caterpillar SPRING RETAINER
Catalog refs: CATERPILLAR 4N8816 · CATERPILLAR 9Y1792
JAK'S JAKS-341352
In Stock · Ask About Same-Day Shipping
$36.15
340116 Cat / Caterpillar STUD (Pack of 4)
Caterpillar · Models: 3406E / C15 / C16 / C18
340116 Cat / Caterpillar STUD (Pack of 4)
Catalog refs: CATERPILLAR 238-4665 · CATERPILLAR 2384665
JAK'S JAKS-340116
In Stock · Ask About Same-Day Shipping
$55.92
340004 Cat / Caterpillar SCREW (Pack of 4)
Caterpillar · Models: 3406E / C15 / C16 / C18
340004 Cat / Caterpillar SCREW (Pack of 4)
Catalog refs: CATERPILLAR 124-1855 · CATERPILLAR 1241855
JAK'S JAKS-340004
In Stock · Ask About Same-Day Shipping
$50.32
331573 Cat / Caterpillar REAR GASKET KIT
Caterpillar · Models: C15 / C15 ACERT / C16 / C18
331573 Cat / Caterpillar REAR GASKET KIT
Catalog refs: 121284 3040817 · 321229 0336042
JAK'S JAKS-331573
In Stock · Ask About Same-Day Shipping
$99.85
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