{"product_id":"kom-caterpillar-main-pump-repair-kit-121-4311","title":"Caterpillar Main Pump Repair Kit 121-4311","description":"\u003cp\u003e\u003cstrong\u003eCaterpillar Main Pump Repair Kit 121-4311\u003c\/strong\u003e is part of the \u003cstrong\u003e19PARTS KOM line\u003c\/strong\u003e, our Keep Ops Moving™ hydraulic parts program for customers who need clear part-number identification, practical availability, and dependable aftermarket sourcing. This main pump repair kit is built around Korean-made hydraulic components sourced through our supplier network for Caterpillar equipment applications.\u003c\/p\u003e\u003ch3\u003eKit overview\u003c\/h3\u003e\u003cp\u003eAssembly part number \u003cstrong\u003e121-4311\u003c\/strong\u003e, alternate no-dash reference \u003cstrong\u003e1214311\u003c\/strong\u003e, is mapped to the main pump component group shown below.\u003c\/p\u003e\u003ch3\u003eIncluded component parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e9T-8448\u003c\/strong\u003e — Barrel (each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9T-8452\u003c\/strong\u003e — Piston Shoe (set)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6E-4234\u003c\/strong\u003e — Valve Plate LH (each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6E-4233\u003c\/strong\u003e — Valve Plate RH (each)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9T-8450\u003c\/strong\u003e — Retainer Plate (each)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMachine applications from source data\u003c\/h3\u003e\u003cp\u003eCAT D8R, D9R CRAWLER TRACTOR; CAT 14H, 16H, 20H, 24H MOTOR GRADER; CAT 789C, 793, 793B, 793C TRUCK; CAT 5230, 5230B MINING EXCAVATOR\u003c\/p\u003e\u003ch3\u003eKOM hydraulic standard\u003c\/h3\u003e\u003cp\u003eKOM stands for \u003cstrong\u003eKeep Ops Moving™\u003c\/strong\u003e. For hydraulic repair parts, that means we focus on traceable sourcing, Korean-made component options where available, clean cross-reference support, and fitment verification before the part reaches the customer.\u003c\/p\u003e\u003ch3\u003eFitment verification\u003c\/h3\u003e\u003cp\u003ePump, swing motor, and travel motor groups can vary by model, serial number, and hydraulic arrangement. Always verify the assembly number, included components, machine model, serial range, and service-book information before ordering.\u003c\/p\u003e\u003ch3\u003eQuality note\u003c\/h3\u003e\u003cp\u003eThis KOM listing is intended for buyers who want a more identifiable aftermarket hydraulic option than anonymous marketplace parts, while still confirming every replacement by part number and machine application.\u003c\/p\u003e","brand":"ETP","offers":[{"title":"Default Title","offer_id":48684501631232,"sku":"KOM-MOT-KIT-1214311","price":828.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0824\/1004\/5696\/files\/heavy-equipment-hydraulic-pump-kits.png?v=1778004143","url":"https:\/\/19parts.com\/products\/kom-caterpillar-main-pump-repair-kit-121-4311","provider":"19PARTS","version":"1.0","type":"link"}