{"product_id":"1386256-seal-kit-fits-caterpillar-models","title":"1386256 Seal Kit Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Seal Kit for Caterpillar (Cat) 3412E Engine - Unit Injector Hydraulic Pump (HEUI)\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement seal kit contains gasket and O-ring seals for the Unit Injector Hydraulic Pump (HEUI) on Caterpillar (Cat) 3412E and related 3408\/3412 series engines. The HEUI pump drives the high-pressure oil system that actuates the unit fuel injectors, and maintaining leak-free seals is critical to proper fuel injection and engine performance. This kit consolidates the necessary replacement seals into a single convenient package for efficient pump service and overhaul.\u003c\/p\u003e\u003ch4\u003eKit Contents\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eReplacement gasket and O-ring seals for the Unit Injector Hydraulic Pump (HEUI)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar (Cat) 3400 Series Engines:\u003c\/strong\u003e 3412E (Marine, Serial 9KS00001-UP); also referenced for use with 3408\/3412 series HEUI pump assemblies (part of pump groups 201-4202, 225-0567, 235-2026). Verify your specific engine serial number and pump group number before ordering to confirm compatibility with your HEUI pump variant.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1386256, 138-6256\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":42453875097683,"sku":"1386256","price":76.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_9f2288a4-26ae-44c2-ba04-55229ac5a046.jpg?v=1757878649","url":"https:\/\/www.reliableaftermarketparts.com\/products\/1386256-seal-kit-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}