{"product_id":"sierra-18-1932-marine-exhaust-manifold-for-volvo-penta-stern-drive-gm-v-6-replaces-856894-1-cast-iron-port-starboard","title":"Sierra Exhaust Manifold 18-1932 for Volvo Penta GM V6 AQ 175, 205, 430 A\/B, 432, 434 - Replaces 856894-1","description":"\u003cp\u003eThe Sierra 18-1932 is a cast iron exhaust manifold engineered as a direct replacement for the OEM manifold on GM V6-powered Volvo Penta stern drive engines, model years 1993 and before, in the AQ 175, 205, 430 A\/B, 432, and 434 applications. The manifold routes exhaust gases away from the engine while cooling water jackets around the casting help manage engine heat, protecting the engine block from thermal stress during operation. Built from cast iron with a machined exterior finish, it is designed to meet or exceed the fit, form, and function of the original equipment part it replaces, giving boat owners a durable, drop-in solution for manifold replacement or rebuild projects. This manifold fits port and starboard applications. When installing, pair the 18-1932 with the 18-2909 manifold gasket for a proper seal at the mounting surface; the matching 18-2971-1 elbow gasket is used where an 18-1936 elbow is installed alongside this manifold. Because exhaust manifolds are wear items subject to salt water corrosion and thermal cycling, replacing a cracked or leaking manifold with a properly specified part like the 18-1932 helps restore reliable engine cooling and exhaust flow. Always confirm the OE number cast into your existing manifold or stamped on your engine documentation against the cross-reference below before ordering.\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 18-1932\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Exhaust Manifold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Machined\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 32 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Cross Reference:\u003c\/strong\u003e 856894-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e GM V6 (1993 \u0026amp; Before), Volvo Penta Model AQ 175, 205, 430 A\/B, 432, 434\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompanion Part:\u003c\/strong\u003e Use with 18-2909 Manifold Gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 808282257613\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGM (V6) (1993 \u0026amp; Before)\u003c\/li\u003e\n\u003cli\u003eVolvo Penta Model AQ 175\u003c\/li\u003e\n\u003cli\u003eVolvo Penta Model AQ 205\u003c\/li\u003e\n\u003cli\u003eVolvo Penta Model AQ 430 A\/B\u003c\/li\u003e\n\u003cli\u003eVolvo Penta Model AQ 432\u003c\/li\u003e\n\u003cli\u003eVolvo Penta Model AQ 434\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eReplaces (OEM)\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e856894-1\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat engines does the Sierra 18-1932 manifold fit?\u003c\/strong\u003e The 18-1932 fits GM V6-powered Volvo Penta stern drive engines built in 1993 and before, specifically model AQ 175, 205, 430 A\/B, 432, and 434.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat OEM part number does the 18-1932 replace?\u003c\/strong\u003e This manifold is a direct cross-reference for OEM number 856894-1 on the applicable Volvo Penta GM V6 engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 18-1932 manifold for port or starboard?\u003c\/strong\u003e The Sierra 18-1932 exhaust manifold fits both port and starboard applications on the applicable GM V6 Volvo Penta engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material is the 18-1932 manifold made from?\u003c\/strong\u003e It is constructed from cast iron with a machined exterior finish for durability in the marine exhaust environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the 18-1932 manifold weigh?\u003c\/strong\u003e The Sierra 18-1932 exhaust manifold weighs 32 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat gasket should I use with the 18-1932 manifold?\u003c\/strong\u003e Use the 18-2909 manifold gasket with the 18-1932 to ensure a proper seal at installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the 18-1932 manifold work with the 18-1936 elbow?\u003c\/strong\u003e Yes, when the 18-1936 elbow is used with the 18-1932 manifold, the 18-2971-1 elbow gasket is the matching gasket for that connection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the Sierra 18-1932 a genuine OEM part or aftermarket?\u003c\/strong\u003e The 18-1932 is a Sierra-manufactured replacement manifold, built to meet or exceed the specification of the original 856894-1 manifold it replaces rather than being a factory OEM part.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the 18-1932 manifold fit any Volvo Penta engine?\u003c\/strong\u003e No, fitment is limited to GM V6 engines from 1993 and before in the AQ 175, 205, 430 A\/B, 432, and 434 models; it is not a universal fit across all Volvo Penta engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the difference between the 18-1932 and the 18-1936?\u003c\/strong\u003e The 18-1932 is the exhaust manifold itself, while the 18-1936 is a separate elbow component used alongside it, each requiring its own matching gasket.\u003c\/p\u003e","brand":"Sierra","offers":[{"title":"Default Title","offer_id":48988089319643,"sku":"SIE-18-1932","price":353.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/SIE-18-1932_lg__11009.1722351929.500.750.jpg?v=1785188982","url":"https:\/\/www.goodvibesmarina.com\/products\/sierra-18-1932-marine-exhaust-manifold-for-volvo-penta-stern-drive-gm-v-6-replaces-856894-1-cast-iron-port-starboard","provider":"Good Vibes Marina","version":"1.0","type":"link"}