{"product_id":"exhaust-mixing-elbow-129579-13551","title":"Exhaust Mixing Elbow 129579-13551 – Fits Yanmar 4JH2 Turbo","description":"\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: linear-gradient(135deg, #f5f8fb 0%, #ffffff 100%); border: 2px solid #0b3a63; border-left: 5px solid #0b3a63; border-radius: 12px; box-shadow: 0 4px 12px rgba(11, 58, 99, 0.08);\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; padding: 0; font-size: 24px; line-height: 1.3; font-weight: 700; color: #132238;\"\u003eHow to Match This Part\u003c\/h2\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eThis aftermarket exhaust mixing elbow replaces Yanmar Marine reference \u003cstrong\u003e129579-13551\u003c\/strong\u003e. It mixes raw cooling water with exhaust gas and routes the mixture away from the engine on compatible Yanmar 4JH2 turbo marine diesels.\u003c\/p\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003e\n    \u003cstrong style=\"font-weight: 700; color: #132238;\"\u003eMatch this part in this order:\u003c\/strong\u003e\u003cbr\u003e\n    1. \u003cstrong\u003eOriginal part number\u003c\/strong\u003e on the elbow or parts list\u003cbr\u003e\n    2. \u003cstrong\u003eEngine model\u003c\/strong\u003e on the engine identification plate\u003cbr\u003e\n    3. \u003cstrong\u003ePhysical form\u003c\/strong\u003e against the product images\n  \u003c\/p\u003e\n  \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eConfirm a triangular 3-bolt mounting flange with elongated bolt slots and a small side water-injection nipple on the elbow body before ordering. See the product images for flange orientation and outlet curve.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px; box-shadow: 0 2px 8px rgba(19, 34, 56, 0.04);\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003ePart Number Cross-Reference\u003c\/h2\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eUse this table to confirm equivalent OEM and aftermarket references for the same mixing-elbow application.\u003c\/p\u003e\n  \u003cdiv style=\"margin: 16px 0; overflow-x: auto; border: 1px solid #e0e6ed; border-radius: 8px;\"\u003e\n    \u003ctable style=\"width: 100%; min-width: 600px; border-collapse: collapse; font-size: 15px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background: #132238; color: #ffffff;\"\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003eReference Type\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003eBrand\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003ePart Number\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px; text-transform: uppercase; border-bottom: 2px solid #0b3a63;\"\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003ePrimary OEM Reference\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e129579-13551\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003ePrimary replacement target\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003eSupersession\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e129579-13550\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eSuperseded by 129579-13551\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003eOEM Equivalent\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e129671-13551\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eInterchange for same 4JH2 mixing elbow\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e\u003cstrong\u003eOEM Equivalent\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e129792-13552\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eCatalog mixing elbow on 4JH2 turbo models\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003e\u003cstrong\u003eAftermarket\u003c\/strong\u003e\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eHDI Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eL3P\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eAftermarket stainless mixing elbow cross\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eCompatible Engine Models\u003c\/h2\u003e\n  \u003cp style=\"margin: 0 0 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eConfirm your engine model in the table below. Match the original part number and the physical shape to the product images. Find the model code on the engine identification plate.\u003c\/p\u003e\n  \u003cdiv style=\"margin: 16px 0; overflow-x: auto; border: 1px solid #e0e6ed; border-radius: 8px;\"\u003e\n    \u003ctable style=\"width: 100%; min-width: 400px; border-collapse: collapse; font-size: 15px;\"\u003e\n      \u003cthead\u003e\n        \u003ctr style=\"background: #132238; color: #ffffff;\"\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px;\"\u003eBrand\u003c\/th\u003e\n          \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700; font-size: 14px;\"\u003eEngine Model\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e4JH2-TE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e4JH2-HTE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e4JH2-DTE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e4JH2-UTE\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e4JH2LTE-K\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr style=\"background: #f5f8fb;\"\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003eYanmar Marine\u003c\/td\u003e\n          \u003ctd style=\"padding: 12px 14px;\"\u003e4JH2LHTE-K\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eTechnical Specifications\u003c\/h2\u003e\n  \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 15px;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background: #132238; color: #ffffff;\"\u003e\n        \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700;\"\u003eSpecification\u003c\/th\u003e\n        \u003cth style=\"padding: 12px 14px; text-align: left; font-weight: 700;\"\u003eValue\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eProduct type\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eExhaust mixing elbow\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f5f8fb;\"\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMaterial\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eStainless steel\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eMounting flange\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eTriangular 3-bolt with elongated slots\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f5f8fb;\"\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eWater inlet\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e1 in (25 mm) side injection nipple\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003eExhaust outlet\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 14px; border-bottom: 1px solid #e0e6ed;\"\u003e3 in (76 mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background: #f5f8fb;\"\u003e\n        \u003ctd style=\"padding: 12px 14px;\"\u003eApplication\u003c\/td\u003e\n        \u003ctd style=\"padding: 12px 14px;\"\u003eYanmar 4JH2 turbo marine diesel exhaust mixing\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eInstallation Guide\u003c\/h2\u003e\n  \u003cdiv style=\"position: relative; padding-left: 40px; margin-bottom: 16px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e1\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eAllow the engine to cool completely and disconnect the battery before starting work.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; padding-left: 40px; margin-bottom: 16px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e2\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eCompare the new elbow to the original for triangular 3-bolt flange layout, water-nipple location, and outlet angle before removing the old part.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; padding-left: 40px; margin-bottom: 16px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e3\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eRemove the old elbow, clean the manifold or turbo mating face, and install a suitable exhaust gasket and fasteners as specified in the engine service manual.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; padding-left: 40px; margin-bottom: 16px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e4\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eSeat the new elbow on the flange, tighten fasteners evenly to the manufacturer’s torque values, then reconnect the water inlet hose and exhaust hose with secure clamps.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"position: relative; padding-left: 40px; margin-bottom: 16px;\"\u003e\n    \u003cspan style=\"position: absolute; left: 0; top: 0; width: 28px; height: 28px; background: #0b3a63; color: #ffffff; font-size: 14px; font-weight: 700; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;\"\u003e5\u003c\/span\u003e\n    \u003cp style=\"margin: 0; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eReconnect the battery, start the engine, and check for water or exhaust leaks at the flange and hose joints before returning the vessel to service.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cp style=\"margin: 12px 0 0; padding: 12px 14px; background: #f5f8fb; border-left: 3px solid #0b3a63; font-size: 14px; line-height: 1.5; color: #5c6b7a; border-radius: 4px;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Follow the Yanmar service manual for torque and gasket requirements. Professional installation is recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0 0 24px; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails style=\"margin: 0 0 12px; padding: 0; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 8px; overflow: hidden;\"\u003e\n    \u003csummary style=\"display: block; padding: 14px 16px; font-size: 16px; font-weight: 700; color: #132238; cursor: pointer; list-style: none;\"\u003e\n      Is this an OEM or aftermarket part?\n      \u003cspan style=\"float: right; font-size: 20px; color: #0b3a63;\"\u003e+\u003c\/span\u003e\n    \u003c\/summary\u003e\n    \u003cp style=\"margin: 0 16px 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eThis is an aftermarket replacement manufactured to match the Yanmar 129579-13551 application. It is not a genuine Yanmar OEM part.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails style=\"margin: 0 0 12px; padding: 0; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 8px; overflow: hidden;\"\u003e\n    \u003csummary style=\"display: block; padding: 14px 16px; font-size: 16px; font-weight: 700; color: #132238; cursor: pointer; list-style: none;\"\u003e\n      Does a gasket come with this elbow?\n      \u003cspan style=\"float: right; font-size: 20px; color: #0b3a63;\"\u003e+\u003c\/span\u003e\n    \u003c\/summary\u003e\n    \u003cp style=\"margin: 0 16px 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eDo not assume a mounting gasket is included. Plan to use the gasket called out in your engine parts list (commonly Yanmar 129472-13520 or equivalent) unless your order confirmation states otherwise.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails style=\"margin: 0 0 12px; padding: 0; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 8px; overflow: hidden;\"\u003e\n    \u003csummary style=\"display: block; padding: 14px 16px; font-size: 16px; font-weight: 700; color: #132238; cursor: pointer; list-style: none;\"\u003e\n      My model is close but not listed—will it fit?\n      \u003cspan style=\"float: right; font-size: 20px; color: #0b3a63;\"\u003e+\u003c\/span\u003e\n    \u003c\/summary\u003e\n    \u003cp style=\"margin: 0 16px 14px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003eOnly the engine models in the compatibility table above are confirmed for this listing. If your plate shows a different JH variant, match the original OEM number and the triangular 3-bolt flange layout before purchasing.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin: 0; padding: 24px; background: #ffffff; border: 1px solid #e0e6ed; border-radius: 12px;\"\u003e\n  \u003ch2 style=\"margin: 0 0 16px; font-size: 24px; font-weight: 700; color: #132238;\"\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n  \u003cul style=\"margin: 0; padding: 0 0 0 24px; font-size: 16px; line-height: 1.6; color: #132238;\"\u003e\n    \u003cli style=\"margin: 0 0 8px;\"\u003e\n\u003cstrong style=\"font-weight: 700;\"\u003eQuality Control:\u003c\/strong\u003e Each batch is inspected for dimensional consistency and workmanship.\u003c\/li\u003e\n    \u003cli style=\"margin: 0;\"\u003e\n\u003cstrong style=\"font-weight: 700;\"\u003eDirect from Manufacturer:\u003c\/strong\u003e Aftermarket marine parts built for the applications listed on this page.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":54433526907193,"sku":"21SE002","price":203.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/129792-13552_129579-13551_129671-13551.jpg?v=1788577734","url":"https:\/\/jlmmarine.com\/products\/exhaust-mixing-elbow-129579-13551","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}