{"product_id":"125-21-23121-disc-fits-komatsu-models","title":"125-21-23121 Disc Fits Komatsu Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Friction Disc for Komatsu Crawler Dozers\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement friction disc (part number 125-21-23121) is a steering clutch component used in Komatsu crawler dozers and bulldozers. The friction disc engages and disengages the steering clutch assembly, allowing directional control of the machine. It is a critical drivetrain wear part and should be inspected and replaced as part of any steering clutch rebuild.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eInner Diameter: 290 mm\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 365 mm\u003c\/li\u003e\n\u003cli\u003eThickness: 4.1 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 1.1 kg (approx. 2.4 lbs)\u003c\/li\u003e\n\u003cli\u003eType: Friction Disc (Steering Clutch)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eKomatsu Crawler Dozers \/ Bulldozers:\u003c\/strong\u003e D40A, D40PL, D45A, D45P, D45S, D50A, D50P, D50PL, D53A, D53P, D53S, D57S, D58E, D58P, D75S\u003c\/p\u003e\u003cp\u003eNote: The D57S-1B application applies to serial numbers 20001 and up (S6D108-1 engine installed). Verify compatibility with your machine's serial number before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e125-21-23121\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":42451903873107,"sku":"125-21-23121","price":106.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/125-21-23121_01.jpg?v=1757664643","url":"https:\/\/www.reliableaftermarketparts.com\/en-au\/products\/125-21-23121-disc-fits-komatsu-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}