{"product_id":"129327-42100-water-pump-for-yanmar-3d84-komatsu-pc20-5-pc20-6-pc30-5","title":"129327-42100 Water Pump for Yanmar 3D84 Komatsu PC20-5 PC20-6 PC30-5","description":"\u003cstrong\u003eThis Water Pump is a replacement coolant pump compatible with Yanmar 3D84 engines and Komatsu PC20-5, PC20-6, PC30-5, PC30-6 excavators and matches OEM Part# 129327-42100.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003eThis water pump circulates coolant through Yanmar 3D84 and Komatsu PC series engines, preventing overheating and ensuring reliable operation. Designed as a direct replacement for part number 129327-42100, it restores proper cooling performance in compact excavators and industrial equipment. Perfect for equipment owners needing a durable, OEM-spec pump for their Yanmar- or Komatsu-powered machines.\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePrecision-engineered impeller delivers consistent coolant flow\u003c\/li\u003e\n\u003cli\u003eMechanical seal prevents leaks and extends service life\u003c\/li\u003e\n\u003cli\u003eDirect fit replacement with OEM mounting points and gasket design\u003c\/li\u003e\n\u003cli\u003eCast iron housing resists corrosion and thermal fatigue\u003c\/li\u003e\n\u003cli\u003eEach unit is vacuum-tested for zero defects\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYanmar 3D84 Engine\u003c\/li\u003e\n\u003cli\u003eKomatsu PC20-5 Excavator\u003c\/li\u003e\n\u003cli\u003eKomatsu PC20-6 Excavator\u003c\/li\u003e\n\u003cli\u003eKomatsu PC30-5 Excavator\u003c\/li\u003e\n\u003cli\u003eKomatsu PC30-6 Excavator\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCooling system repair on Komatsu mini excavators\u003c\/li\u003e\n\u003cli\u003eReplacement water pump for Yanmar 3D84-powered generators\u003c\/li\u003e\n\u003cli\u003eMaintenance for agricultural tractors using Yanmar 3D84\u003c\/li\u003e\n\u003cli\u003eOverhaul of compact construction equipment cooling circuits\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 129327-42100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Type:\u003c\/strong\u003e Centrifugal engine water pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cast iron housing, steel impeller\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Holes:\u003c\/strong\u003e 4-bolt pattern (see OEM for exact dimensions)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this water pump a direct replacement for the original?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, it matches the OEM part number and bolt pattern for a straightforward swap using existing gaskets.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this pump come with a gasket or seal?\u003cstrong\u003e A:\u003c\/strong\u003e No, the gasket and seal are sold separately; we recommend replacing them during installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"DURAFORCE","offers":[{"title":"Default Title","offer_id":53677981008145,"sku":"ZZ2Z01820","price":127.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/2446\/2929\/files\/12_1ea1db13-f9cc-4576-9a34-8b5946cfe31c.jpg?v=1781613459","url":"https:\/\/www.duraforce.com\/products\/129327-42100-water-pump-for-yanmar-3d84-komatsu-pc20-5-pc20-6-pc30-5","provider":"DURAFORCE","version":"1.0","type":"link"}