{"product_id":"honda-k20c-rear-main-seal-91214-5a2-a01","title":"Honda K20C Rear Main Seal 91214-5A2-A01","description":"\u003cul\u003e\n\u003cli\u003eGenuine Honda Product \u003c\/li\u003e\n\u003cli\u003eDirect Factory Replacement Part \u003c\/li\u003e\n\u003cli\u003eFits K20C1, K20C2, K20C4, K20C6, K20C8 Engines \u003c\/li\u003e\n\u003cli\u003eCompatible with Accord 2.0T, FK8\/FL5 Type R, DE5 Type S \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eGenuine Honda Rear Main Seal (91214-5A2-A01) - Modern K-Series\u003c\/h3\u003e\n\n\u003cp\u003eThis is one of the cheapest parts in your engine and one of the most expensive to ignore. The rear main seal sits where the crankshaft exits the back of the block, and getting to it means the transmission comes out. So it's a few dollars in parts and a full day of labor, which is exactly why you replace it while you're already in there rather than after it starts weeping.\u003c\/p\u003e\n\n\u003ch4\u003eReplace It With Your Clutch. Every Time.\u003c\/h4\u003e\n\n\u003cp\u003eThe most useful advice on this page. If the transmission is coming out for a clutch, a flywheel, a rear main seal is a matter of course, not a judgment call.\u003c\/p\u003e\n\n\u003cp\u003eHere's the math. The seal costs almost nothing. Pulling the transmission costs you a weekend or a shop bill. If you button everything up with the original seal and it starts leaking six months later, you're doing the entire job over for a part you could have replaced in five minutes while the crank was staring at you.\u003c\/p\u003e\n\n\u003cp\u003eRubber hardens with age and heat cycling regardless of mileage, so a seal that looked fine going back together can start weeping shortly after. Nobody regrets replacing one. Plenty of people regret not.\u003c\/p\u003e\n\n\u003ch4\u003eHow To Spot A Rear Main Leak\u003c\/h4\u003e\n\n\u003cp\u003eLook for oil around the bellhousing seam, where the transmission meets the block. A rear main leak typically shows as oil collecting at the bottom of the bellhousing, or dripping from the inspection cover if your car has one.\u003c\/p\u003e\n\n\u003cp\u003eWhat makes it tricky is that a rear main leak looks a lot like a leaking oil pan gasket or a transmission input shaft seal, since gravity puts all three in roughly the same place. Clean the area thoroughly, run the car, and look again to find the actual source before you commit to pulling anything.\u003c\/p\u003e\n\n\u003cp\u003eOne thing worth knowing: a rear main leak bad enough to reach the clutch will contaminate the friction surface and cause slipping or chatter. If you're diagnosing a clutch that's misbehaving on a car with an oily bellhousing, you may be looking at the cause rather than a coincidence.\u003c\/p\u003e\n\n\u003ch4\u003eUse The Genuine Seal\u003c\/h4\u003e\n\n\u003cp\u003eGiven what it costs to access, this is about as clear a case for the factory part as exists in your engine. The seal has to hold against a spinning crankshaft, through heat cycles, for years. A cheap seal that hardens early means doing the whole job again.\u003c\/p\u003e\n\n\u003cp\u003eThis is the exact part Honda spec'd, 91214-5A2-A01. On a job where the part is the smallest line item by a wide margin, buying anything else makes no sense.\u003c\/p\u003e\n\n\u003ch4\u003eInstall It Carefully\u003c\/h4\u003e\n\n\u003cp\u003eRear main seals are unforgiving of rough handling, so take your time.\u003c\/p\u003e\n\n\u003cp\u003eGet the crankshaft sealing surface clean and inspect it for a wear groove where the old seal rode. Seat the new seal square rather than cocked, and use a proper installer or a driver that presses evenly across the face instead of hammering on one edge. And be careful not to nick or roll the sealing lip as it passes over the crank.\u003c\/p\u003e\n\n\u003cp\u003eA seal that goes in slightly crooked or with a damaged lip will leak from day one, and you'll have done all that work for nothing.\u003c\/p\u003e\n\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\n\u003cp\u003e2016-2022 Acura ILX\u003cbr\u003e2024-2026 Acura Integra Type S\u003cbr\u003e2019-2025 Acura RDX\u003cbr\u003e2015-2025 Acura TLX\u003cbr\u003e2018-2022 Honda Accord 2.0T\u003cbr\u003e2016-2021 Honda Civic LX \/ EX (2.0 NA)\u003cbr\u003e2017-2021 Honda Civic Type R (FK8)\u003cbr\u003e2022-2026 Honda Civic Type R (FL5)\u003cbr\u003e2015-2019 Honda CR-V\u003cbr\u003e2023-2026 Honda HR-V\u003c\/p\u003e\n\n\u003cp\u003eCovers K20C variants including the K20C1, K20C2, K20C4, K20C6, and K20C8. Given the range this spans, it's worth confirming against your engine's parts diagram before ordering.\u003c\/p\u003e\n\n\u003ch4\u003eWho Should Grab One\u003c\/h4\u003e\n\n\u003cp\u003eThis is for anyone with the transmission out for any reason, and for anyone who's found oil at the bellhousing and traced it here. It's the definition of cheap insurance: a few dollars now against a repeat of the most labor-intensive part of the job. If the crank is exposed, put a new seal on it.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e modern Honda and Acura K-series, see the application list above. \u003cstrong\u003ePart number:\u003c\/strong\u003e 91214-5A2-A01. \u003cstrong\u003eType:\u003c\/strong\u003e genuine Honda rear main seal. \u003cstrong\u003eRecommended:\u003c\/strong\u003e replace whenever the transmission is removed.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e2016-2022 Acura ILX\u003cbr\u003e2024-2026 Acura Integra Type S\u003cbr\u003e2019-2025 Acura RDX\u003cbr\u003e2015-2025 Acura TLX\u003cbr\u003e2018-2022 Honda Accord 2.0T\u003cbr\u003e2016-2021 Honda Civic LX\/EX (NA 2.0)\u003cbr\u003e2017-2021 Honda Civic Type R\u003cbr\u003e2022-2026 Honda Civic Type R\u003cbr\u003e2015-2019 Honda CR-V\u003cbr\u003e2023-2026 Honda HR-V\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"Honda","offers":[{"title":"Default Title","offer_id":46509983989794,"sku":"OHA-91214-5A2-A01","price":23.74,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/OHA-91214-5A2-A01_vb1x_fa7a7a9c-cc13-49de-a928-e0321e3ecca6.jpg?v=1787418153","url":"https:\/\/www.hybrid-racing.com\/products\/honda-k20c-rear-main-seal-91214-5a2-a01","provider":"Hybrid Racing","version":"1.0","type":"link"}