{"product_id":"1991-1998-5-9l-cummins-12v-6bt-x-series-piston-kit","title":"1991-1998 5.9L Cummins 12V 6BT X-Series Piston Kit","description":"\u003ch2\u003e1991-1998 5.9L Cummins 12V 6BT X-Series Piston Kit\u003c\/h2\u003e\n\u003cp\u003eIndustrial Injection X-Series Piston Kits are built for 1991-1998 5.9L Cummins 12V 6BT engine rebuilds, towing applications, and performance diesel builds. Each kit is designed as a \u003cstrong\u003edrop-in replacement matched piston set\u003c\/strong\u003e and is available in multiple bore sizes to match your engine build.\u003c\/p\u003e\n\u003cp\u003eChoose from \u003cstrong\u003eStock Replacement\u003c\/strong\u003e, \u003cstrong\u003eCoated \u0026amp; Chamfered\u003c\/strong\u003e, or \u003cstrong\u003eFly Cut, Coated \u0026amp; Chamfered\u003c\/strong\u003e piston options depending on your engine setup and performance goals.\u003c\/p\u003e\n\u003ch3\u003eStock Piston Kit Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1991-1998 5.9L Cummins 12V 6BT engines\u003c\/li\u003e\n\u003cli\u003eDrop-in replacement matched piston set\u003c\/li\u003e\n\u003cli\u003eComplete with rings, wrist pins, and clips\u003c\/li\u003e\n\u003cli\u003eAvailable in Standard, .020\", and .040\" sizes\u003c\/li\u003e\n\u003cli\u003eCeramic piston skirt coating for reduced friction\u003c\/li\u003e\n\u003cli\u003eIdeal for OEM-style rebuilds, towing applications, and reliable performance upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCoated \u0026amp; Chamfered Piston Kit Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1991-1998 5.9L Cummins 12V 6BT engines\u003c\/li\u003e\n\u003cli\u003eDrop-in replacement matched piston set\u003c\/li\u003e\n\u003cli\u003eComplete with rings, wrist pins, and clips\u003c\/li\u003e\n\u003cli\u003eAvailable in Standard, .020\", and .040\" sizes\u003c\/li\u003e\n\u003cli\u003eChamfered piston tops to help reduce cylinder wall scuffing\u003c\/li\u003e\n\u003cli\u003eThermal barrier coating on piston tops\u003c\/li\u003e\n\u003cli\u003eCeramic piston skirt coating for reduced friction\u003c\/li\u003e\n\u003cli\u003e.015\" reduced compression height\u003c\/li\u003e\n\u003cli\u003eDesigned for increased cylinder pressure, elevated boost, heavy towing, and performance diesel builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFly Cut, Coated \u0026amp; Chamfered Piston Kit Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFits 1991-1998 5.9L Cummins 12V 6BT engines\u003c\/li\u003e\n\u003cli\u003eDrop-in replacement matched piston set\u003c\/li\u003e\n\u003cli\u003eComplete with rings, wrist pins, and clips\u003c\/li\u003e\n\u003cli\u003eAvailable in Standard, .020\", and .040\" sizes\u003c\/li\u003e\n\u003cli\u003eChamfered piston tops to help reduce cylinder wall scuffing\u003c\/li\u003e\n\u003cli\u003eThermal barrier coating on piston tops\u003c\/li\u003e\n\u003cli\u003eCeramic piston skirt coating for reduced friction\u003c\/li\u003e\n\u003cli\u003e.015\" reduced compression height\u003c\/li\u003e\n\u003cli\u003e.100\" fly cut valve reliefs for additional piston-to-valve clearance\u003c\/li\u003e\n\u003cli\u003eIdeal for high-performance builds using higher-lift camshafts or requiring added valve clearance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStandard\u003c\/li\u003e\n\u003cli\u003e.020\" Oversize\u003c\/li\u003e\n\u003cli\u003e.040\" Oversize\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eChoosing the Right Piston Option\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStock Replacement\u003c\/strong\u003e pistons are a strong choice for standard rebuilds, tow rigs, and reliable engine setups. \u003cstrong\u003eCoated \u0026amp; Chamfered\u003c\/strong\u003e pistons add piston top coating, skirt coating, chamfered piston tops, and reduced compression height for more demanding Cummins builds. \u003cstrong\u003eFly Cut, Coated \u0026amp; Chamfered\u003c\/strong\u003e pistons add .100\" valve reliefs for builds that require additional piston-to-valve clearance.\u003c\/p\u003e\n\u003ch3\u003eSupersedes Previous Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePDM-03513 - Stock Replacement (Standard)\u003c\/li\u003e\n\u003cli\u003ePDM-03513.020 - Stock Replacement (.020\")\u003c\/li\u003e\n\u003cli\u003ePDM-03513.040 - Stock Replacement (.040\")\u003c\/li\u003e\n\u003cli\u003ePDM-03513CC - Coated \u0026amp; Chamfered (Standard)\u003c\/li\u003e\n\u003cli\u003ePDM-03513CC.020 - Coated \u0026amp; Chamfered (.020\")\u003c\/li\u003e\n\u003cli\u003ePDM-03513CC.040 - Coated \u0026amp; Chamfered (.040\")\u003c\/li\u003e\n\u003cli\u003ePDM-03513FCC - Fly Cut, Coated \u0026amp; Chamfered (Standard)\u003c\/li\u003e\n\u003cli\u003ePDM-03513FCC.020 - Fly Cut, Coated \u0026amp; Chamfered (.020\")\u003c\/li\u003e\n\u003cli\u003ePDM-03513FCC.040 - Fly Cut, Coated \u0026amp; Chamfered (.040\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Spec Sheet: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0553\/1956\/0326\/files\/X_Series_Pistons_Spec_Sheet-2.pdf?v=1783022796\" title=\"X Series Pistons Spec Sheet\"\u003eClick Here\u003c\/a\u003e\n\u003c\/h3\u003e\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003eConfirm bore size, compression height, and piston-to-valve clearance requirements before ordering. For performance builds or modified engines, consult your engine builder to verify the correct piston setup.\u003c\/p\u003e","brand":"Industrial Injection","offers":[{"title":"Stock Replacement (Standard)","offer_id":44122612269190,"sku":"248120","price":1199.95,"currency_code":"USD","in_stock":true},{"title":"Stock Replacement (.020)","offer_id":44122612301958,"sku":"248121","price":1199.95,"currency_code":"USD","in_stock":true},{"title":"Stock Replacement (.040)","offer_id":44122612334726,"sku":"248122","price":1199.95,"currency_code":"USD","in_stock":true},{"title":"Coated \u0026 Chamfered (Standard)","offer_id":44122612367494,"sku":"248125","price":1499.95,"currency_code":"USD","in_stock":true},{"title":"Coated \u0026 Chamfered (.020)","offer_id":44122612400262,"sku":"248126","price":1499.95,"currency_code":"USD","in_stock":true},{"title":"Coated \u0026 Chamfered (.040)","offer_id":44122612433030,"sku":"248127","price":1499.95,"currency_code":"USD","in_stock":true},{"title":"Fly Cut Coated \u0026 Chamfered (Standard)","offer_id":44122612465798,"sku":"248130","price":1599.95,"currency_code":"USD","in_stock":true},{"title":"Fly Cut Coated \u0026 Chamfered (.020)","offer_id":44122612498566,"sku":"248131","price":1599.95,"currency_code":"USD","in_stock":true},{"title":"Fly Cut Coated \u0026 Chamfered (.040)","offer_id":44122612531334,"sku":"248132","price":1599.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/1956\/0326\/files\/248121_14.jpg?v=1782834182","url":"https:\/\/industrialinjection.com\/products\/1991-1998-5-9l-cummins-12v-6bt-x-series-piston-kit","provider":"Industrial Injection","version":"1.0","type":"link"}