{"product_id":"a-3900276-ai-spring-valve","title":"A-3900276-AI Spring; Valve","description":"\u003ch3\u003eOne New Aftermarket Replacement Valve Spring for Cummins B Series Diesel Engines\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement intake and exhaust valve spring fits Cummins B Series diesel engines, including the 4B 3.9L and 6B 5.9L engine families. Valve springs maintain proper valve-to-seat contact, ensuring correct intake and exhaust timing, combustion efficiency, and long engine life in agricultural, construction, marine, and trucking applications.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOuter Diameter: 1.32 in.\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 0.94 in.\u003c\/li\u003e\n\u003cli\u003eWire Diameter: 0.192 in.\u003c\/li\u003e\n\u003cli\u003eFree Length: 2.23 in. (approx.)\u003c\/li\u003e\n\u003cli\u003eCoils: 6.5 total (6 active)\u003c\/li\u003e\n\u003cli\u003eEnds: Ground square and flat\u003c\/li\u003e\n\u003cli\u003eHelix Direction: Right hand\u003c\/li\u003e\n\u003cli\u003eApplication: 2-valve cylinder head\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCummins B Series Engines:\u003c\/strong\u003e 4B 3.9, 4BT 3.9, 4BTA 3.9, 6B 5.9, 6BT 5.9, 6BTA 5.9, ISB Series\u003c\/p\u003e\u003cp\u003eThese engines are used across a wide range of equipment including Dodge Ram 2500 and 3500 pickup trucks (1989-1998), Freightliner FL50, FL60, FL70, FL80, FS65, MT35, and numerous agricultural, industrial, and marine applications.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e3900276, A-3900276, A-3900276-AI\u003c\/p\u003e\u003ch4\u003eAftermarket Interchange Numbers\u003c\/h4\u003e\u003cp\u003e3916691, 3926700, C3900276\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":40018153242707,"sku":"A-3900276-AI","price":29.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/A-3900276-AI_01.jpg?v=1757735741","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/a-3900276-ai-spring-valve","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}