{"product_id":"kohler-muffler-for-ch11-ch15-engines-11-length-5-od-oem-replacement-for-ch12-5-ch13-ch15","title":"Kohler Muffler for CH11–CH15 Engines — 11\" Length, 5\" OD OEM Replacement for CH12.5 CH13 CH15","description":"\u003cp\u003e\u003cstrong\u003eReplacement Kohler OEM muffler (part 12 068 58-S) designed to fit CH11–CH15 engines with a 5\" outside diameter and an 11\" overall length.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an original equipment replacement muffler manufactured to Kohler specifications for use on small engines including CH11, CH12.5, CH13 and CH15 models. It replaces Kohler part numbers 12 068 36-S, 12 068 46-S, 12 068 47-S and 12 068 58-S, offering the correct dimensions and inlet pipe size for a direct swap. Built to match factory fitment, the unit helps restore proper exhaust routing and keeps the engine operating within designed noise and backpressure parameters.\u003c\/p\u003e\n\n\u003ch3\u003eWill this muffler fit my Kohler CH-series engine?\u003c\/h3\u003e\n\u003cp\u003eYes — this OEM muffler is engineered for Kohler CH-series engines. It’s specified to fit CH11 through CH15 models, so confirm your engine model before purchasing to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits Kohler CH11, CH12.5, CH13 and CH15 engines.\u003c\/li\u003e\n  \u003cli\u003eReplaces Kohler part numbers: 12 068 36-S, 12 068 46-S, 12 068 47-S, 12 068 58-S.\u003c\/li\u003e\n  \u003cli\u003eCheck engine model stamping or manual for CH-series match before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the muffler’s exact dimensions and inlet size?\u003c\/h3\u003e\n\u003cp\u003eThe muffler measures 11 inches overall in length with a 5-inch outside diameter body and a 1 1\/4-inch OD inlet pipe. These dimensions are critical for ensuring the muffler mounts correctly and aligns with the exhaust port and mounting brackets on the engine.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOverall length: 11 inches.\u003c\/li\u003e\n  \u003cli\u003eBody outside diameter (OD): 5 inches.\u003c\/li\u003e\n  \u003cli\u003eInlet pipe diameter: 1 1\/4 inches OD.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this an original Kohler part or an aftermarket substitute?\u003c\/h3\u003e\n\u003cp\u003eThis listing is for an OEM Kohler muffler made to the manufacturer’s specifications and sold under Kohler part number 12 068 58-S. Using an OEM replacement helps preserve factory fit, finish and performance characteristics compared with generic aftermarket units.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM Kohler part — not a generic copy.\u003c\/li\u003e\n  \u003cli\u003eManufactured to Kohler tolerances for proper fitment.\u003c\/li\u003e\n  \u003cli\u003eDirect replacement for the listed Kohler part numbers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install this muffler and what should I inspect?\u003c\/h3\u003e\n\u003cp\u003eInstallation typically involves removing the old muffler’s mounting bolts and inlet connection, sliding the replacement into place, and tightening hardware to the engine’s torque specifications. Inspect gaskets, mounting studs and heat shields during installation and replace any worn components for a secure, leak-free fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemove old muffler and inspect mounting studs and gasket.\u003c\/li\u003e\n  \u003cli\u003eFit inlet pipe onto exhaust outlet, align mount holes, tighten hardware.\u003c\/li\u003e\n  \u003cli\u003eReplace damaged gaskets or fasteners to prevent leaks and vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: This OEM Kohler muffler is suited for owners and technicians maintaining Kohler CH-series small engines who want a direct-fit factory replacement. It’s ideal for landscapers, equipment rental shops, maintenance crews and DIYers needing the correct dimensions and part numbers to restore exhaust fitment and engine operation without fabrication or modification.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this muffler fit Kohler CH12.5 engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it fits Kohler CH11 through CH15, including CH12.5.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the inlet pipe diameter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The muffler uses a 1 1\/4-inch outside diameter inlet pipe.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Kohler","offers":[{"title":"Default Title","offer_id":56806029689172,"sku":"B00HWFCBYY","price":157.43,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/kohler-muffler-front-view.jpg?v=1786811938","url":"https:\/\/gardenluxe.co.uk\/products\/kohler-muffler-for-ch11-ch15-engines-11-length-5-od-oem-replacement-for-ch12-5-ch13-ch15","provider":"Gardenluxe Uk","version":"1.0","type":"link"}