{"product_id":"2w6078-pinion-drive-fits-caterpillar-models","title":"2W6078 Pinion-Drive Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Drive Pinion for Caterpillar (Cat) Engines and Equipment\u003c\/h3\u003e\u003cp\u003eThis 12-tooth drive pinion (part number 2W6078 \/ 2W-6078) is a component of Caterpillar vane air starter motors. The drive pinion engages and rotates the engine flywheel ring gear during air starting, transmitting rotational motion from the air starter motor to crank the engine. It is hardened to withstand high-impact engagement loads and features a 6-tooth right-hand helical spline drive shaft interface for positive torque transfer. Used across a wide range of large Cat diesel engines, power units, and off-highway trucks equipped with vane-type air starters.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTeeth: 12\u003c\/li\u003e\n\u003cli\u003eDrive shaft interface: 6-tooth, right-hand helical spline\u003c\/li\u003e\n\u003cli\u003eWeight: approximately 1.0 lb\u003c\/li\u003e\n\u003cli\u003eDimensions: approximately 2.76 x 2.36 x 1.97 in.\u003c\/li\u003e\n\u003cli\u003eApplication: Caterpillar vane air starter motor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Engines:\u003c\/strong\u003e 3412, 3412C, 3412D, 3412E, 3508, 3508B, 3508C, 3512, 3512B, 3512C, 3516, 3516B, 3516C, 3606, 3608, 3612, 3616\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Off-Highway Trucks:\u003c\/strong\u003e 776C, 776D, 777D, 784B, 784C, 785, 785B, 785C, 785D, 789B, 789C, 793B, 793C\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Mining Shovels \/ Large Equipment:\u003c\/strong\u003e 5230, 5230B\u003c\/p\u003e\u003cp\u003e\u003cem\u003eNote: This part fits various Cat machines equipped with vane air starters. Verify air starter configuration before ordering.\u003c\/em\u003e\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e2W6078, 2W-6078\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":42453171011667,"sku":"2W6078","price":220.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/2W6078_01.jpg?v=1757689270","url":"https:\/\/www.reliableaftermarketparts.com\/products\/2w6078-pinion-drive-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}