{"product_id":"enl80-0172-inner-valve-spring","title":"5F3111 Inner Spring Fits Caterpillar Industrial Construction Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Inner Valve Spring Fits Caterpillar (Fits CAT) Industrial Construction Models\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement inner valve spring Fits Caterpillar equipment powered by the D315 engine, including the 955 and 977 crawler loaders. The inner valve spring works as part of a dual-spring valve assembly in the cylinder head, maintaining precise valve seating and closure to ensure proper compression and engine performance during heavy-duty operation. Replacing worn or fatigued valve springs is essential during engine rebuilds and cylinder head service on these vintage Fits CAT machines.\u003c\/p\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eFits Caterpillar (Fits CAT) Crawler Loaders:\u003c\/strong\u003e 955, 977\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFor Engine Model:\u003c\/strong\u003e D315\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e5F3111, ENL80-0172\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":17725326229555,"sku":"ENL80-0172","price":20.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/ENL80-0172_01.jpg?v=1757740754","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/enl80-0172-inner-valve-spring","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}