{"product_id":"1w5321-insert-valve-exh-fits-caterpillar-models","title":"1W5321 Insert-Valve Exh Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Exhaust Valve Seat Insert for Caterpillar (Cat) Engines\u003c\/h3\u003e\u003cp\u003eThis 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.\u003c\/p\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Engine Series:\u003c\/strong\u003e D330, D330A, D330B, D330C, D333, D333A, D333B, D333C\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1W5321, 1W-5321\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc® -OD","offers":[{"title":"Default Title","offer_id":42451002720339,"sku":"1W5321","price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1W5321_01.jpg?v=1758109931","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/1w5321-insert-valve-exh-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}