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Correct matching of the engine model and reference number is recommended before shipment and installation.\u003c\/p\u003e\n\n\u003cp\u003eDuring an engine rebuild, the piston operates with the cylinder liner, piston rings, connecting rod, and related components. Selecting the correct version helps avoid installation problems caused by differences between engine configurations.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIZUMI ORIGINAL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Piston\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4BT\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3957797 \/ 3957795\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Rebuild, Repair and Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMOQ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Piece\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned for compatible 4BT engine repair and rebuilding requirements\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 3957797 \/ 3957795\u003c\/li\u003e\n  \u003cli\u003eFor compatible Cummins engine rebuild applications\u003c\/li\u003e\n  \u003cli\u003eQuality inspection before shipment\u003c\/li\u003e\n  \u003cli\u003eSuitable for individual replacement and bulk purchasing requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEngine Rebuild and Replacement Application\u003c\/h3\u003e\n\n\u003cp\u003eThis \u003cstrong\u003e4BT engine piston\u003c\/strong\u003e can be used when replacing worn or damaged piston components during engine maintenance or overhaul. Depending on the rebuild requirement, it can also be supplied together with piston rings, cylinder liners, bearings, gasket kits, connecting rods, and other related engine parts.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility Confirmation\u003c\/h3\u003e\n\n\u003cp\u003eDifferent versions of the same engine model may use different piston specifications. Before ordering, please provide the engine model, original part number, engine nameplate, or photos and dimensions of the old piston. Our team can help check the required \u003cstrong\u003e4BT piston\u003c\/strong\u003e specification before shipment.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose IZUMI ORIGINAL?\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eProfessional supply of diesel engine repair and rebuild parts\u003c\/li\u003e\n  \u003cli\u003eMOQ starting from 1 piece\u003c\/li\u003e\n  \u003cli\u003eFast order processing and delivery support\u003c\/li\u003e\n  \u003cli\u003eUp to 24 months warranty\u003c\/li\u003e\n  \u003cli\u003eTechnical support for engine model and part number confirmation\u003c\/li\u003e\n  \u003cli\u003eOne-stop sourcing for engine overhaul and replacement spare parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNeed More 4BT Engine Spare Parts?\u003c\/h3\u003e\n\n\u003cp\u003eSend us your engine model, part number, required quantity, and destination country. We can help confirm compatibility for the \u003cstrong\u003eIZUMI ORIGINAL 4BT piston\u003c\/strong\u003e and source other related engine rebuild and replacement parts for your project.\u003c\/p\u003e","brand":"IZUMI ORIGINAL","offers":[{"title":"4BT","offer_id":46056700280911,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}]},{"product_id":"izumi-original-4bt3-9-3957797-3957795-piston","title":"IZUMI ORIGINAL 4BT3.9 3957797 3957795 Piston for Cummins Engine Rebuild and Replacement Spare Parts","description":"\u003ch2\u003eIZUMI ORIGINAL 4BT3.9 Engine Piston 3957797 \/ 3957795\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eIZUMI ORIGINAL 4BT3.9 piston\u003c\/strong\u003e, reference part numbers \u003cstrong\u003e3957797 and 3957795\u003c\/strong\u003e, is supplied for compatible Cummins engine applications requiring engine repair, rebuilding, or piston replacement. It is intended for professional maintenance projects where the correct engine model and piston specification must be matched before installation.\u003c\/p\u003e\n\n\u003cp\u003eThe piston is part of the engine combustion assembly and works closely with the ring set, liner, piston pin, and connecting rod. Because specifications can vary, compatibility should be confirmed using the available engine and part information.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIZUMI ORIGINAL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Piston\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4BT3.9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3957797 \/ 3957795\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Rebuild, Repair and Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMOQ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Piece\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned for compatible 4BT3.9 engine repair and rebuilding requirements\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 3957797 \/ 3957795\u003c\/li\u003e\n  \u003cli\u003eFor compatible Cummins engine rebuild applications\u003c\/li\u003e\n  \u003cli\u003eQuality inspection before shipment\u003c\/li\u003e\n  \u003cli\u003eSuitable for individual replacement and bulk purchasing requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEngine Rebuild and Replacement Application\u003c\/h3\u003e\n\n\u003cp\u003eThis \u003cstrong\u003e4BT3.9 engine piston\u003c\/strong\u003e can be used when replacing worn or damaged piston components during engine maintenance or overhaul. Depending on the rebuild requirement, it can also be supplied together with piston rings, cylinder liners, bearings, gasket kits, connecting rods, and other related engine parts.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility Confirmation\u003c\/h3\u003e\n\n\u003cp\u003eDifferent versions of the same engine model may use different piston specifications. Before ordering, please provide the engine model, original part number, engine nameplate, or photos and dimensions of the old piston. Our team can help check the required \u003cstrong\u003e4BT3.9 piston\u003c\/strong\u003e specification before shipment.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose IZUMI ORIGINAL?\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eProfessional supply of diesel engine repair and rebuild parts\u003c\/li\u003e\n  \u003cli\u003eMOQ starting from 1 piece\u003c\/li\u003e\n  \u003cli\u003eFast order processing and delivery support\u003c\/li\u003e\n  \u003cli\u003eUp to 24 months warranty\u003c\/li\u003e\n  \u003cli\u003eTechnical support for engine model and part number confirmation\u003c\/li\u003e\n  \u003cli\u003eOne-stop sourcing for engine overhaul and replacement spare parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNeed More 4BT3.9 Engine Spare Parts?\u003c\/h3\u003e\n\n\u003cp\u003eSend us your engine model, part number, required quantity, and destination country. We can help confirm compatibility for the \u003cstrong\u003eIZUMI ORIGINAL 4BT3.9 piston\u003c\/strong\u003e and source other related engine rebuild and replacement parts for your project.\u003c\/p\u003e","brand":"IZUMI ORIGINAL","offers":[{"title":"4BT3.9","offer_id":46056700313679,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/3832\/2255\/files\/4BT3.9_piston.png?v=1784107055"},{"product_id":"izumi-original-4bt-3802750-3802230-piston-ring","title":"IZUMI ORIGINAL 4BT 3802750 3802230 Piston Ring for Cummins Engine Rebuild and Replacement Spare Parts","description":"\u003ch2\u003eIZUMI ORIGINAL 4BT Piston Ring 3802750 \/ 3802230\u003c\/h2\u003e\n\n\u003cp\u003eFor engine overhaul and maintenance work, the \u003cstrong\u003eIZUMI ORIGINAL 4BT engine piston ring\u003c\/strong\u003e with reference numbers \u003cstrong\u003e3802750 and 3802230\u003c\/strong\u003e is available for compatible Cummins engine applications. It is intended for professional replacement projects where the correct ring specification must be confirmed before installation.\u003c\/p\u003e\n\n\u003cp\u003eInside the cylinder, piston rings help maintain the seal around the piston while controlling lubricating oil on the cylinder wall. During an overhaul, the ring specification should be matched to the piston and cylinder configuration.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIZUMI ORIGINAL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Piston Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4BT\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3802750 \/ 3802230\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Rebuild, Repair and Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMOQ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Set\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned for compatible 4BT engine repair and overhaul requirements\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 3802750 \/ 3802230\u003c\/li\u003e\n  \u003cli\u003eFor compatible Cummins engine rebuild and replacement applications\u003c\/li\u003e\n  \u003cli\u003eSuitable for piston and cylinder maintenance during engine rebuilding\u003c\/li\u003e\n  \u003cli\u003eQuality inspection before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEngine Rebuild and Replacement Application\u003c\/h3\u003e\n\n\u003cp\u003eFor a \u003cstrong\u003e4BT engine rebuild\u003c\/strong\u003e, this piston ring can be supplied as a replacement component after the engine version and ring specification are confirmed. Other related overhaul parts can be sourced together for a more complete repair project.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility Confirmation\u003c\/h3\u003e\n\n\u003cp\u003eCompatibility should be confirmed carefully before purchasing this \u003cstrong\u003e4BT engine piston ring\u003c\/strong\u003e. Please provide the engine model, reference number if available, or old ring and piston details so the required specification can be checked before shipment.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose IZUMI ORIGINAL?\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eProfessional supply of diesel engine repair and rebuild parts\u003c\/li\u003e\n  \u003cli\u003eMOQ starting from 1 set\u003c\/li\u003e\n  \u003cli\u003eFast order processing and delivery support\u003c\/li\u003e\n  \u003cli\u003eUp to 24 months warranty\u003c\/li\u003e\n  \u003cli\u003eTechnical support for engine model and part number confirmation\u003c\/li\u003e\n  \u003cli\u003eOne-stop sourcing for engine overhaul and replacement spare parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNeed More 4BT Engine Spare Parts?\u003c\/h3\u003e\n\n\u003cp\u003eSend us your engine model, part number, required quantity, and destination country. We can help confirm compatibility for the \u003cstrong\u003eIZUMI ORIGINAL 4BT piston ring\u003c\/strong\u003e and source other related engine rebuild and replacement parts for your project.\u003c\/p\u003e","brand":"IZUMI ORIGINAL","offers":[{"title":"4BT","offer_id":46056740094031,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/3832\/2255\/files\/4BT_piston_ring.png?v=1784107144"},{"product_id":"izumi-original-4bt3-9-3802421-3802746-piston-ring","title":"IZUMI ORIGINAL 4BT3.9 3802421 3802746 Piston Ring for Cummins Engine Rebuild and Replacement Spare Parts","description":"\u003ch2\u003eIZUMI ORIGINAL 4BT3.9 Piston Ring 3802421 \/ 3802746\u003c\/h2\u003e\n\n\u003cp\u003eThis \u003cstrong\u003eIZUMI ORIGINAL 4BT3.9 piston ring\u003c\/strong\u003e is offered under reference numbers \u003cstrong\u003e3802421 and 3802746\u003c\/strong\u003e for compatible Cummins engine rebuild requirements. It can be used when servicing an engine with worn, damaged, or incorrectly sealing piston rings.\u003c\/p\u003e\n\n\u003cp\u003eThe piston ring is a key internal engine component that works with the piston and cylinder liner. Its condition and specification affect cylinder sealing and oil control, so careful compatibility checking is important during replacement.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Information\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIZUMI ORIGINAL\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Piston Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4BT3.9\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3802421 \/ 3802746\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEngine Rebuild, Repair and Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMOQ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 Set\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 24 Months\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDesigned for compatible 4BT3.9 engine repair and overhaul requirements\u003c\/li\u003e\n  \u003cli\u003eReference numbers: 3802421 \/ 3802746\u003c\/li\u003e\n  \u003cli\u003eFor compatible Cummins engine rebuild and replacement applications\u003c\/li\u003e\n  \u003cli\u003eSuitable for piston and cylinder maintenance during engine rebuilding\u003c\/li\u003e\n  \u003cli\u003eQuality inspection before shipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eEngine Rebuild and Replacement Application\u003c\/h3\u003e\n\n\u003cp\u003eThis \u003cstrong\u003e4BT3.9 piston ring\u003c\/strong\u003e is intended for engine repair, rebuilding, and replacement work. Depending on the overhaul scope, related parts such as pistons, cylinder liners, bearings, connecting rods, gasket kits, and other engine components can also be supplied.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility Confirmation\u003c\/h3\u003e\n\n\u003cp\u003eDifferent versions of the same engine model may use different piston ring sizes or configurations. Before ordering, please provide the engine model, original part number when available, engine nameplate, or clear photos and dimensions of the old ring and piston. Our team can help confirm the required \u003cstrong\u003e4BT3.9 piston ring\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose IZUMI ORIGINAL?\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eProfessional supply of diesel engine repair and rebuild parts\u003c\/li\u003e\n  \u003cli\u003eMOQ starting from 1 set\u003c\/li\u003e\n  \u003cli\u003eFast order processing and delivery support\u003c\/li\u003e\n  \u003cli\u003eUp to 24 months warranty\u003c\/li\u003e\n  \u003cli\u003eTechnical support for engine model and part number confirmation\u003c\/li\u003e\n  \u003cli\u003eOne-stop sourcing for engine overhaul and replacement spare parts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNeed More 4BT3.9 Engine Spare Parts?\u003c\/h3\u003e\n\n\u003cp\u003eSend us your engine model, part number, required quantity, and destination country. We can help confirm compatibility for the \u003cstrong\u003eIZUMI ORIGINAL 4BT3.9 piston ring\u003c\/strong\u003e and source other related engine rebuild and replacement parts for your project.\u003c\/p\u003e","brand":"IZUMI ORIGINAL","offers":[{"title":"4BT3.9","offer_id":46056740388943,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/3832\/2255\/files\/4BT3.9_piston_ring.png?v=1784107144"}],"url":"https:\/\/izumiengineparts.com\/collections\/4bt.oembed","provider":"IZUMI ORIGINAL","version":"1.0","type":"link"}