{"product_id":"komatsu-5-9l-12v-long-block-engine","title":"Komatsu 5.9L 12v Long Block Diesel Crate Engine Choate Performance (S6D102E \/ SA6D102E \/ SAA6D102E)","description":"\u003cp\u003eStop settling for a standard \"rebuild.\" Choate Performance offers a fully remanufactured Komatsu 102 Series Long Block (S6D102E \/ SA6D102E \/ SAA6D102E) built on the legendary Cummins 5.9L 12-valve architecture. Engineered for owner-operators and fleet owners who rely on mechanical reliability, our engines are built to handle the grueling thermal and load demands of heavy excavators, loaders, and dozers.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eThe Choate Remanufacturing Process\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003eWe treat your industrial 5.9L engine with the same \"Stock is Not an Option\" philosophy we bring to our high-horsepower competition diesel builds:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eCNC Blueprint Boring:\u003c\/b\u003e We don't just hone cylinders; we CNC blueprint the block to ensure true geometry, deck flatness, and perfect alignment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eKDP Correction:\u003c\/b\u003e We permanently eliminate the infamous 12-valve \"Killer Dowel Pin\" issue by installing a tabbed retainer so the pin can never back out into your timing gears.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003ePrecision Balancing:\u003c\/b\u003e We don't settle for simple component weight-matching. We fully balance the entire rotating assembly to within 2 grams. This drastically minimizes harmonic vibration, eliminating the leading cause of premature bearing failure in heavy equipment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eTorque Plate Honing:\u003c\/b\u003e We simulate the clamping force of a torqued cylinder head during the honing process to deliver maximum ring seal and oil control.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eUpgraded Thermal Sealing:\u003c\/b\u003e We utilize premium cylinder head hardware and gaskets to prevent the rear-cylinder (#5 and #6) thermal fatigue common on heavy-duty 5.9L platforms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eWhat’s Included:\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFully Machined Engine Block \u0026amp; Micro-Polished Crankshaft\u003c\/strong\u003e (Ground to 0.0005\" or less)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNew Upgraded Pistons \u0026amp; Rings\u003c\/strong\u003e (Engineered for high thermal resistance)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eNew Main, Rod, and Cam Bearings\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRemanufactured 12-Valve Cylinder Head\u003c\/strong\u003e (New heavy-duty valves, guides, and seats)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTabbed \"Killer Dowel Pin\" (KDP) Retainer Installed\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cb\u003eOrdering Instructions\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp\u003ePlease enter your \u003cstrong\u003eEquipment Model Number\u003c\/strong\u003e, \u003cstrong\u003eMachine Serial Number\u003c\/strong\u003e, and \u003cstrong\u003eEngine Serial Number\u003c\/strong\u003e in the fields above before adding this item to your cart. Providing this information upfront ensures proper fitment for your specific machine.\u003c\/p\u003e\n\u003cp\u003eNeed help identifying your engine model? Check out our \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003ca href=\"https:\/\/choateperformance.com\/pages\/komatsu-saa6d102e-engine-guide\" target=\"_blank\" title=\"Komatsu 102 Series Guide\" rel=\"noopener\"\u003eKomatsu 102 Series Engine Guide\u003c\/a\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e or call our experts at \u003cb\u003e901-553-9847\u003c\/b\u003e.\u003c\/p\u003e","brand":"Choate Performance","offers":[{"title":"Default Title","offer_id":67548552823088,"sku":"CEP59KL","price":12900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0941\/2680\/1200\/files\/KomatsuSAA6D107ELongBlockEngine1.png?v=1776875649","url":"https:\/\/choateperformance.com\/products\/komatsu-5-9l-12v-long-block-engine","provider":"choateperformance","version":"1.0","type":"link"}