{"product_id":"1s1970-chamber-a-fits-caterpillar-models","title":"1S1970 Chamber A Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Precombustion Chamber (Chamber A) for Caterpillar (Cat) Engines\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement precombustion chamber (pre-cup) fits Caterpillar D311, D315, D318, and D318G indirect-injection diesel engines. The precombustion chamber is the cavity in the cylinder head where fuel is initially ignited before combustion spreads to the main cylinder. During operation, these chambers endure extreme compression forces and heat cycles; over time they can crack or work loose, risking serious damage to the cylinder head or engine block. Replacing a worn or damaged chamber restores proper combustion efficiency and protects the surrounding assembly.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDiameter: 55mm\u003c\/li\u003e\n\u003cli\u003eCompatible glow plug: 3H2033 (pencil-type)\u003c\/li\u003e\n\u003cli\u003eAssociated hardware: outer O-ring seal 2H3088, injector retainer nut 6F8061, O-ring seals 5B3718 (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Engines \/ Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Engine Applications:\u003c\/strong\u003e D311, D315, D318, D318G\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Equipment (D6 series and others powered by the above engines):\u003c\/strong\u003e Verify your engine model number before ordering. Note: ACMOC forum sources reference a chamber size change on the D6 9U series at serial number 9U11705 -- confirm fitment for D6 9U machines near or above that serial break.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1S1970, 1S-1970\u003c\/p\u003e\u003ch4\u003eAftermarket Interchange Numbers\u003c\/h4\u003e\u003cp\u003e2S1273, 2S-1273, 4F8517, 4F-8517\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":42452514177107,"sku":"1S1970","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1S1970_01.jpg?v=1757661004","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/1s1970-chamber-a-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}