1W5321 Insert-Valve Exh Fits Caterpillar Models
1W5321 Insert-Valve Exh Fits Caterpillar Models
Regular price
£20.00 GBP
Regular price
Sale price
£20.00 GBP
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One New Aftermarket Replacement Exhaust Valve Seat Insert for Caterpillar (Cat) Engines
This aftermarket replacement exhaust valve seat insert (1W5321) fits the cylinder head of Caterpillar D330 and D333 series diesel engines. The exhaust valve seat insert seats against the exhaust valve to form a tight, heat-resistant seal, helping maintain proper compression and combustion efficiency. It is a pressed-fit component installed in the cylinder head during engine rebuilds and top-end overhauls.
Compatible Models
Caterpillar Engine Series: D330, D330A, D330B, D330C, D333, D333A, D333B, D333C
Replaces Part Number(s):
1W5321, 1W-5321
New aftermarket replacement part - not remanufactured, not used.
