{"product_id":"1w1657-bearing-eng-0-050in-1-fits-caterpillar-models","title":"1W1657 Bearing,Eng.   0.050In=1. Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Main Bearing for Caterpillar (Cat) 3406 Series Engines\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement crankshaft main bearing fits Caterpillar (Cat) 3406 series engines and is sized 0.050 in. undersize for use during engine rebuilds where the crankshaft journals have been reground to the 0.050 in. undersize specification. Main bearings support the crankshaft as it rotates under load; correct bearing size is critical for maintaining proper oil clearance and extending crankshaft life. This part is used in the engine block crankshaft saddle positions of the 3406 inline 6-cylinder diesel engine, a heavy-duty powerplant used widely across Caterpillar construction equipment, trucks, and marine applications.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUndersize: 0.050 in.\u003c\/li\u003e\n\u003cli\u003eApplication: Crankshaft main bearing\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 0.43 lbs.\u003c\/li\u003e\n\u003cli\u003eDimensions: approx. 4 in. x 2.9 in. x 1.4 in.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar (Cat) Engines:\u003c\/strong\u003e 3406, 3406B\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This is an undersized bearing for use only with crankshafts that have been reground to the 0.050 in. undersize. Confirm crankshaft journal diameter before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1W1657, 1W-1657\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":42454054207571,"sku":"1W1657","price":27.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1W1657_01.jpg?v=1757650755","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/1w1657-bearing-eng-0-050in-1-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}