2321285 Insert-Valve Exh Fits Caterpillar Models
2321285 Insert-Valve Exh Fits Caterpillar Models
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One New Aftermarket Replacement Exhaust Valve Seat Insert for Caterpillar (Cat) 3126 / C7 Engines
This exhaust valve seat insert fits Caterpillar 3126, 3126B, 3126E, and C7 diesel engines. Pressed into the cylinder head, the insert provides a hardened, heat-resistant seating surface for the exhaust valve, ensuring an airtight seal, proper heat dissipation, and long-term valve train performance. It is a direct replacement for Caterpillar OEM part number 2321285 and cross-references 1478218 / 147-8218.
Compatible Engines
- Caterpillar 3126
- Caterpillar 3126B
- Caterpillar 3126E
- Caterpillar C7
Compatible Equipment (partial - 3126 / C7 powered machines)
Caterpillar Motor Graders: 120H, 120K, 120K 2, 12K, 135H, 140G, 140K, 140K 2, 140M, 160K
Caterpillar Excavators: 322C, 324D
Caterpillar Gen Set / Industrial / Petroleum / Marine: 3126B Gen Set, 3126B Industrial, 3126B Petroleum, C7 On-highway, C7 Marine, C7 Industrial
Replaces Part Number(s):
2321285, 232-1285, 1478218, 147-8218
New aftermarket replacement part - not remanufactured, not used.
