{"product_id":"sierra-18-1842-v6-dry-joint-exhaust-manifold-replaces-mercury-864612t01-fits-4-3l-262cid-alpha-bravo-2002-and-newer","title":"Sierra 18-1842 V6 Dry Joint Exhaust Manifold - Replaces 27-864850A02, 27-864547A1","description":"\u003cp\u003eThe Sierra 18-1842 is a V6 dry joint exhaust manifold built for marine engines that use the dry joint manifold-and-riser exhaust configuration. Unlike a wet-joint design, the dry joint manifold moves water from the manifold to the riser externally rather than through an internal water jacket seal, which essentially eliminates the possibility of water entering the cylinders if a gasket fails. This makes it a common choice when reliability against gasket failure is a priority.\u003c\/p\u003e\u003cp\u003eThe 18-1842 is used together with the 18-1843 manifold and 18-1845 riser as a matched dry joint set, and it can also be used with the OE riser. It fits 4.3L, 5.0L, 5.7L, and 6.2L engines that utilize the dry joint manifold and riser system. The manifold has a white finish and weighs 33 pounds.\u003c\/p\u003e\u003cp\u003eIt directly replaces OEM manifold numbers 27-864850A02 and 27-864547A1, allowing it to be ordered as a drop-in replacement for engines originally fitted with those parts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Sierra\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 18-1842\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e V6 Dry Joint Exhaust Manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e 4.3L, 5.0L, 5.7L, 6.2L engines utilizing the Dry Joint Manifold and Riser system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed With:\u003c\/strong\u003e 18-1843 Manifold, 18-1845 Riser\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\/Finish:\u003c\/strong\u003e White\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 33 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross-Reference:\u003c\/strong\u003e 27-864850A02, 27-864547A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eFits 4.3L, 5.0L, 5.7L, and 6.2L engines that utilize the dry joint manifold and riser exhaust system. Used with the 18-1843 manifold and 18-1845 riser.\u003c\/p\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e27-864850A02\u003c\/li\u003e\n\u003cli\u003e27-864547A1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-1842 exhaust manifold fit?\u003c\/strong\u003e The Sierra 18-1842 fits 4.3L, 5.0L, 5.7L, and 6.2L engines that use the dry joint manifold and riser exhaust configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part numbers does the 18-1842 replace?\u003c\/strong\u003e It replaces OEM manifold numbers 27-864850A02 and 27-864547A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1842 the same as OEM part 27-864850A02?\u003c\/strong\u003e Yes, the Sierra 18-1842 is a direct replacement for OEM number 27-864850A02 as well as 27-864547A1.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is a dry joint exhaust manifold?\u003c\/strong\u003e A dry joint exhaust manifold, like the Sierra 18-1842, transfers water from the manifold to the riser externally instead of through an internal water jacket seal, which essentially eliminates the possibility of water entering the cylinders if a gasket fails.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-1842 manifold weigh?\u003c\/strong\u003e The Sierra 18-1842 exhaust manifold weighs 33 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat color is the 18-1842 manifold?\u003c\/strong\u003e It has a white finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the 18-1842 be used with the OE riser?\u003c\/strong\u003e Yes, the 18-1842 manifold can be used with the OE riser in addition to the Sierra 18-1845 riser.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat other parts are needed with the 18-1842?\u003c\/strong\u003e The 18-1842 is designed for use as part of a matched dry joint set alongside the 18-1843 manifold and 18-1845 riser.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1842 require a specific gasket?\u003c\/strong\u003e The 18-1842 dry joint manifold is designed to work with the dry joint manifold and riser gasket system used in this exhaust configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy choose a dry joint manifold over a wet joint design?\u003c\/strong\u003e The dry joint design used in the 18-1842 essentially eliminates the possibility of water entering the cylinders if there is a gasket failure, since water is transferred externally from the manifold to the riser rather than through an internal seal.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988089024731,"sku":"SIE-18-1842","price":409.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/Sierra-18-1842-V6-Dry-Joint-Exhaust-Manifold__95934.1727703225.500.750.jpg?v=1785189034","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-1842-v6-dry-joint-exhaust-manifold-replaces-mercury-864612t01-fits-4-3l-262cid-alpha-bravo-2002-and-newer","provider":"Good Vibes Marina","version":"1.0","type":"link"}