1258842 Gasket Fits Caterpillar Models

One New Aftermarket Replacement Cylinder Head Gasket for Caterpillar (Cat) Diesel Engines

This aftermarket replacement cylinder head gasket (replaces Caterpillar part number 1258842 / 125-8842) seals the cylinder head to the engine block, preventing leaks of coolant, oil, and combustion gases and maintaining proper compression in Caterpillar diesel engines. The 0.82mm thickness designates this as an oversized head gasket, used when the engine block deck has been machined and the standard-thickness gasket is no longer appropriate.

Specifications

• Thickness: 0.82mm (oversized/thicker-than-standard)
• Type: Cylinder Head Gasket
• Application: Caterpillar diesel engines (see note below)

Compatible Models

Note: This gasket is identified as a 0.82mm thick (oversized) cylinder head gasket for Caterpillar engines. Oversized head gaskets are used on the Cat 3114, 3116, and 3126 (2-valve) engine families when deck surface machining has reduced the block deck-to-crankshaft centerline measurement below standard specification. Always verify your engine serial number and block deck measurement before ordering to confirm this is the correct thickness for your application.

Replaces Part Number(s):

1258842, 125-8842

New aftermarket replacement part - not remanufactured, not used.