{"product_id":"fuel-lift-pump-129100-52100-for-komatsu-3d84-3d78n-3d84e-4d84e-4d84-4d88e-s3d84","title":"Fuel Lift Pump 129100-52100 for Komatsu 3D84 3D78N 3D84E 4D84E 4D84 4D88E S3D84","description":"\u003ch2\u003eFuel Lift Pump for Komatsu\u003c\/h2\u003e\u003cp\u003eThis fuel lift pump, referencing OEM cross-reference 129100-52100, delivers reliable fuel delivery for Komatsu industrial and agricultural diesel engines. It is a direct replacement fuel lift pump designed to maintain proper fuel pressure and volume to the injection system. This fuel lift pump supports Komatsu engine models including the 3D84, 3D78N, 3D84E, 4D84E, 4D84, 4D88E, and S3D84.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis fuel lift pump for Komatsu engines ensures consistent fuel flow from the tank to the injection pump, supporting reliable starts and steady operation. It is built for Komatsu 3D84, 3D78N, 3D84E, 4D84E, 4D84, 4D88E, and S3D84 diesel engines as a direct mechanical replacement. The pump is designed to match the performance of the original 129100-52100 unit.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement for Komatsu part number 129100-52100\u003c\/li\u003e\n\u003cli\u003eDurable die-cast housing resists corrosion and vibration\u003c\/li\u003e\n\u003cli\u003ePrecision-machined plunger ensures consistent fuel delivery\u003c\/li\u003e\n\u003cli\u003eIntegrated strainer protects the injection system from debris\u003c\/li\u003e\n\u003cli\u003eMechanical diaphragm design offers reliable low-pressure fuel supply\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Komatsu 3D84 engine\u003c\/li\u003e\n\u003cli\u003efor Komatsu 3D78N engine\u003c\/li\u003e\n\u003cli\u003efor Komatsu 3D84E engine\u003c\/li\u003e\n\u003cli\u003efor Komatsu 4D84E engine\u003c\/li\u003e\n\u003cli\u003efor Komatsu 4D84 engine\u003c\/li\u003e\n\u003cli\u003efor Komatsu 4D88E engine\u003c\/li\u003e\n\u003cli\u003efor Komatsu S3D84 engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUsed in excavators and compact loaders powered by Komatsu diesel engines\u003c\/li\u003e\n\u003cli\u003eSupports generators and pumps driven by 3D84 and 4D84 series engines\u003c\/li\u003e\n\u003cli\u003eMaintains fuel pressure for agricultural tractors and compact equipment\u003c\/li\u003e\n\u003cli\u003eCommonly installed during engine overhaul or fuel system service\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e129100-52100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMechanical fuel lift pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Engines\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKomatsu 3D84, 3D78N, 3D84E, 4D84E, 4D84, 4D88E, S3D84\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fuel lift pump fit my Komatsu 3D84 engine? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it is specifically designed for the Komatsu 3D84 and other listed 3D and 4D series engine models. Always verify your engine serial number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this pump require any special tools to install? \u003cstrong\u003eA:\u003c\/strong\u003e No, standard hand tools are sufficient for removal and installation. Confirm the mounting bolt pattern matches your existing pump configuration.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Part Outfitters","offers":[{"title":"Default Title","offer_id":46611938738362,"sku":"ZZ3F04774","price":56.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/2476\/1786\/files\/s-l1600_d09b06e8-a109-4596-8118-ce0eb46229f6.jpg?v=1789012194","url":"https:\/\/partoutfitters.com\/products\/fuel-lift-pump-129100-52100-for-komatsu-3d84-3d78n-3d84e-4d84e-4d84-4d88e-s3d84","provider":"Part Outfitters","version":"1.0","type":"link"}