Caterpillar Engine C15 Rebuild MXS

Caterpillar C15 ACERT Engine Rebuild (MXS) – Overhaul / Rebuild Parts Package

Engine Family: Caterpillar C15 ACERT

Serial Prefix Focus: MXS (verify engine serial)

Overview

This listing targets Caterpillar C15 ACERT engines with serial prefix MXS, a common on-highway C15 ACERT family. A proper rebuild restores compression, oil control, and reliability by renewing wear components such as cylinder packs, pistons, bearings, and gasket sets.

Common Rebuild Scope (Typical Overhaul Contents)

• 6x cylinder/liner kits (with sealing O-rings)
• Pistons + ring sets + pins/retainers
• Main bearings, rod bearings, thrust washers (size depends on crank spec)
• Upper gasket set (including head gasket set) + oil pan gasket
• Injector O-rings / sealing items (varies by kit)

Fitment / Verification

• MXS is a C15 ACERT serial prefix – confirm by engine serial tag before ordering.
• Parts selection depends on compression ratio, piston style, liner type, and crank bearing sizes.
• For best accuracy, provide engine serial number and your desired rebuild level (in-frame vs full overhaul).

Why Customers Buy This

• Low compression, blow-by, high oil consumption
• Overheating history, head gasket failures
• Coolant/oil mixing, worn cylinder packs
• Preventive overhaul for high-mileage fleets

Send your engine serial (MXSxxxxxx) and we’ll confirm the correct rebuild configuration.