-14% sale
Volvo Penta Qualifies for Free Shipping Volvo Penta Exhaust Manifold #21356421 Volvo Penta Qualifies for Free Shipping Volvo Penta Exhaust Manifold Starboard #21356421
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Exhaust Manifold Starboard #21356421 $1,699.16 $1,971.03
Volvo Penta 21356421 ManifoldsVolvo Penta standard height starboard exhaust manifold used on 5.0L and 5.7L catalyst engines. Volvo Penta starboard exhaust manifold Used on 5.0L and 5.7L engines with catalyst exhaust system Standard height manifold Normalized SKU: 21356421
-14% sale
Volvo Penta Qualifies for Free Shipping Volvo Penta Exhaust Manifold #21356423 Volvo Penta Qualifies for Free Shipping Volvo Penta Exhaust Manifold #21356423
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Exhaust Manifold Port #21356423 $1,699.16 $1,971.03
Volvo Penta 21356423 ManifoldsVolvo Penta standard height port exhaust manifold used on 5.0L and 5.7L catalyst engines. Volvo Penta port exhaust manifold Used on 5.0L and 5.7L engines with catalyst exhaust system Standard height manifold Normalized SKU: 21356423
-9% sale
Mercury Marine Exhaust Manifold #807078T08 Mercury Marine Exhaust Manifold #807078T08
00
DAYS
00
HRS
00
MIN
00
SEC
Mercury Marine Mercury Marine Exhaust Manifold #807078T08 $379.99 $416.15
Mercury Marine 807078T08 Manifolds Fits both port and starboard side of engine and economical E-COATED for longevity. Fits: • Mercruiser 7.4-LITER (454 CID) and 8.2-Liter (502 CID) engines with center riser (1983 and newer)Normalized SKU: 807078T08UPC Code: 745061739642
-14% sale
Indmar Not Qualified for Free Shipping Indmar EXTCAT Starboard Aluminum Catalyst Exhaust Manifold #531400HL Indmar Not Qualified for Free Shipping Indmar EXTCAT Starboard Aluminum Catalyst Exhaust Manifold #531400HL
00
DAYS
00
HRS
00
MIN
00
SEC
Indmar Indmar EXTCAT Starboard Aluminum Catalyst Exhaust Manifold #531400HL $1,973.20 $2,288.91
Indmar 531400HL Manifolds OEM Indmar one piece exhaust manifold with catalyst exhaust element for Vortec 5.7L Monsoon & 6.2L Hammerhead marine engines. Indmar EXTCAT starboard side aluminum one piece exhaust manifold and riser Used on Indmar Vortec 5.7L Monsoon and 6.2L Hammerhead engines with catalyst exhaust systems Engines serial no. 172317 and below require replumbing kit p.n. 495180 if not already updated (see Product Attachments) Manifold catalyst installed and non-servicable Does not include fittings or decals Painted black Starboard side only - for port side order p.n. 531401HL Manifold Gasket P/N 556202SPEC and Dump Gasket P/N 765006 - sold separately Normalized SKU: 531400HL
-18% sale
Barr Not Qualified for Free Shipping Barr Mercruiser 8.1L 496 Exhaust Manifold #MC-1-866178 Barr Not Qualified for Free Shipping Barr Mercruiser 8.1L 496 Exhaust Manifold #MC-1-866178
00
DAYS
00
HRS
00
MIN
00
SEC
Barr Barr Mercruiser 8.1L 496 Exhaust Manifold #MC-1-866178 $712.38 $862.65
Barr MC-1-866178 Manifolds Barr Marine GM 8.1 and 8.2L cast iron center rise exhaust manifold without the water rail. Can be used for the port or starboard side of the engine. Mercruiser GM V-8 Aftermarket Exhaust Manifold - 8.1L & 8.2L Fits MCM/MIE 8.1L & 8.2L non‑EC engines Barr Marine  GM 8.1 and 8.2L cast iron center rise exhaust manifold without the water rail This kit includes the exhaust manifold, the mounting bolts,  and the manifold to head gasket Normalized SKU: MC1866178
-19% sale
Crusader Not Qualified for Free Shipping Crusader Exhaust Manifold 6.0L #R028024 Crusader Not Qualified for Free Shipping Crusader Exhaust Manifold 6.0L #R028024
00
DAYS
00
HRS
00
MIN
00
SEC
Crusader Crusader Exhaust Manifold 6.0L #R028024 $402.15 $495.08
Crusader R028024 Manifolds Original equipment Crusader exhaust manifold For Crusader GM V8 6.0L marine engines from 2004 and newer Interchangeable between port and starboard side Heavy duty cast iron Painted Crusader blue from the factory Manifold to head gasket RM0276 sold separately Riser gasket RM0274A sold separately Normalized SKU: R028024
-20% sale
Volvo Penta Not Qualified for Free Shipping Volvo Penta Exhaust Manifold 5.0 and 5.7L #3847501
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Exhaust Manifold 5.0 and 5.7L #3847501 $514.26 $641.86
Volvo Penta 3847501 Manifolds Volvo Penta center rise exhaust manifold For Volvo Penta GM 5.0L and 5.7L marine engines with center rise exhaust manifolds Interchangeable between the port and starboard side Includes drain plug assembly and 90-degree hose connector Does not include gaskets Heavy-duty cast iron Painted black Original Volvo Penta Replaces OMC 3857723 Replaces Volvo 3857723 Normalized SKU: 3847501
-6% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Mercury Marine Mercury Marine Exhaust Manifold #807078T10 $565.99 $600.62
Mercury Marine 807078T10 ManifoldsMercury Marine Exhaust Manifold #807078T10Normalized SKU: 807078T10UPC Code: 745061739659
-22% sale
Sierra Oversized - Not Qualified for Free Shipping Sierra Manifold #18-1952-1
00
DAYS
00
HRS
00
MIN
00
SEC
Sierra Sierra Manifold #18-1952-1 $314.44 $399.36
Sierra 18-1952-1 ManifoldsManifoldOEM Interchange:MERCURY MARINE: 99746A17MERCURY MARINE: 99746A8Sierra Manifold #18-1952-1Normalized SKU: 1819521UPC Code: 808282237448
Sold out -22% sale
Sierra Oversized - Not Qualified for Free Shipping Sierra Manifold #18-1925
00
DAYS
00
HRS
00
MIN
00
SEC
Sierra Sierra Manifold #18-1925 $336.79 $427.74
Sierra 18-1925 ManifoldsManifoldOEM Interchange:CRUSADER: 96120CRUSADER: 97752Sierra Manifold #18-1925Normalized SKU: 181925UPC Code: 808282126964
Sold out NEW ARRIVAL -100% sale
00
DAYS
00
HRS
00
MIN
00
SEC
Mercury Marine Mercury Dry Joint Conversion Exhaust #8M0164159 $0.00 $1,971.93
Mercury Marine 8M0164159 ManifoldsMercury Dry Joint Conversion Exhaust #8M0164159Normalized SKU: 8M0164159UPC Code: 678633124891
Sold out NEW ARRIVAL -100% sale
Mercury Marine Truck Freight - Not Qualified for Free Shipping Mercury Dry Joint Exhaust Kit #8M0164162
00
DAYS
00
HRS
00
MIN
00
SEC
Mercury Marine Mercury Dry Joint Exhaust Kit #8M0164162 $0.00 $2,104.46
Mercury Marine 8M0164162 Manifolds The Mercury 8M0164162 Exhaust Manifold & Elbow Kit is a comprehensive, genuine OEM solution designed to replace the dry joint 14° exhaust system on MCM small block V6 engines with standard cooling and no risers. This complete kit includes all necessary components for a professional-grade installation, ensuring optimal exhaust flow, reliable performance, and long-term durability in demanding marine environments. Specifically engineered for 2004 and newer MCM V6 (non-EC) engines with serial numbers 0W310000 and above, this kit delivers the precision fit and quality you expect from Mercury Marine. The dry joint design simplifies installation while providing robust, leak-free performance that stands up to the rigors of marine use. Whether you're performing routine maintenance or addressing exhaust system wear, this kit provides everything you need for a complete, factory-quality repair. Important Note: Engines equipped with freshwater cooling and/or risers may require additional exhaust elbow gaskets, which should be ordered separately to ensure proper installation. Compatibility: Fits 2004 & newer MCM V6 (non-EC) engines Serial number 0W310000 and above Standard cooling configuration without risers Normalized SKU: 8M0164162UPC Code: 678633124921
Sold out NEW ARRIVAL -100% sale
Mercury Marine Truck Freight - Not Qualified for Free Shipping Mercury Dry Joint Exhaust Kit #8M0164161
00
DAYS
00
HRS
00
MIN
00
SEC
Mercury Marine Mercury Dry Joint Exhaust Kit #8M0164161 $0.00 $2,160.43
Mercury Marine 8M0164161 Manifolds The Mercury 8M0164161 Exhaust Manifold & Elbow Kit is a complete, genuine OEM solution engineered to replace the dry joint 14° exhaust system on MCM small block V8 engines with standard cooling and no risers. This comprehensive kit includes all necessary components for a professional-grade installation, delivering optimal exhaust flow, reliable performance, and long-lasting durability in the demanding marine environment. Precision-engineered for GM small block engines (305, 350 & 377 CID) equipped with dry joint 14° exhaust elbows, this kit ensures a factory-quality fit and finish. The dry joint design simplifies installation while providing robust, leak-free operation that withstands the rigors of marine use. Whether you're performing scheduled maintenance or addressing exhaust system wear, this kit delivers everything you need for a complete, reliable repair using genuine Mercury Marine components. Important Note: Engines equipped with freshwater cooling and/or risers may require additional exhaust elbow gaskets, which should be ordered separately to ensure proper installation. Compatibility: 2004 & newer MCM sterndrives (non-EC) engines with serial number 0W310000 and above 2002 & newer MIE inboards (non-EC) engines with serial number 0M317000 and above GM small block engines: 305, 350 & 377 CID Dry joint 14° exhaust elbow configuration Standard cooling without risers Normalized SKU: 8M0164161UPC Code: 678633124914
Sold out NEW ARRIVAL -100% sale
Mercury Marine Not Qualified for Free Shipping Mercury Exhaust Manifold Big Block EC07-12QS #8M0099070
00
DAYS
00
HRS
00
MIN
00
SEC
Mercury Marine Mercury Exhaust Manifold Big Block EC07-12QS #8M0099070 $0.00 $1,136.10
Mercury Marine 8M0099070 Manifolds The Mercury 8M0099070 Exhaust Manifold is a genuine OEM component engineered specifically for Big Block EC07-12QS marine engines. This precision-manufactured manifold is designed to efficiently channel exhaust gases away from the engine while withstanding the extreme temperatures and corrosive conditions inherent in marine applications. Constructed to Mercury Marine's exacting specifications, this exhaust manifold delivers reliable, long-lasting performance and proper exhaust flow for optimal engine operation. The robust design ensures durability under high-performance conditions, while the precise fitment guarantees proper sealing and integration with your engine's exhaust system. Whether you're replacing a corroded or damaged manifold or performing preventive maintenance, the 8M0099070 provides the quality and reliability you expect from genuine Mercury Marine components. Using OEM parts like this exhaust manifold helps maintain your engine's performance standards, preserves warranty coverage, and ensures compatibility with your Big Block engine's specifications. Proper exhaust system function is critical for engine efficiency, longevity, and safe operation. Compatibility: Big Block EC07-12QS engines Genuine Mercury Marine OEM component Normalized SKU: 8M0099070UPC Code: 745061813755
NEW ARRIVAL -22% sale
Chrysler Qualifies for Free Shipping Chrysler New Take-Off Exhaust Manifold Center Rise #4417590-SND Chrysler Qualifies for Free Shipping Chrysler New Take-Off Exhaust Manifold Center Rise #4417590-SND
00
DAYS
00
HRS
00
MIN
00
SEC
Chrysler Chrysler New Take-Off Exhaust Manifold Center Rise #4417590-SND $220.24 $279.72
Chrysler 4417590-SND Manifolds New Take-Off Exhaust Manifold  Center Rise Normalized SKU: 4417590SND
-20% sale
Sierra Not Qualified for Free Shipping Sierra Exhaust Manifold GM Small Block 305-350 #18-1986-2
00
DAYS
00
HRS
00
MIN
00
SEC
Sierra Sierra Exhaust Manifold GM Small Block 305-350 #18-1986-2 $359.67 $448.91
Sierra 18-1986-2 Manifolds For: GM Small Block (V8) 305-350 cu. in. Port & Starboard Material: Cast Iron Normalized SKU: 1819862UPC Code: 808282391232
-2% sale
Recmar Qualifies for Free Shipping Recmar Mercruiser V6 GM Exhaust Manifold #MAR746 Recmar Qualifies for Free Shipping Recmar Mercruiser V6 GM Exhaust Manifold #MAR746
00
DAYS
00
HRS
00
MIN
00
SEC
Recmar Recmar Mercruiser V6 GM Exhaust Manifold #MAR746 $254.49 $258.88
Recmar MAR746 Manifolds Mercruiser center rise exhaust manifold used with Mercruiser 3.8 liter & 4.3 liter CID marine engines from 1985-2002. Fits GM V6 4.3L 1985-2002 Direct replacement manifold fits Mercruiser GM V6 229 and 262 cubic inch engines Riser mating bolt dimensions are 3-7/16 inch (87.3mm) by 3-1/16 inch (77.8mm) bolt center-to-center For Mercruiser 175, 185, and 205 model engines Interchangeable between the port and starboard sides Heavy-duty cast iron Painted black Includes all gaskets, short riser studs, drain elbow, and plugs Manifold mounting kit P/N 18-8533 – sold separately Replaces Mercruiser 99745, 99746, 99746A8, 99746A17, 99746A3 Replaces Osco 9745 Replaces Sierra 18-1952 This product replaces: 99746A17, 99746A3, 99746A8 Normalized SKU: MAR746
-19% sale
Pleasurecraft Not Qualified for Free Shipping Pleasurecraft Exhaust Manifold 6.0L #R028023 Pleasurecraft Not Qualified for Free Shipping Pleasurecraft Exhaust Manifold 6.0L #R028023
00
DAYS
00
HRS
00
MIN
00
SEC
Pleasurecraft Pleasurecraft Exhaust Manifold 6.0L #R028023 $402.15 $495.08
Pleasurecraft R028023 Manifolds OEM Pleasurecraft center rise manifold painted black fits PCM GM 6.0L marine engines from 2004 and newer. Original equipment Pleasurecraft exhaust manifold For PCM GM V8 6.0L marine engines from 2004 and newer Interchangeable between port and starboard side Heavy duty cast iron Painted PCM black from the factory Manifold to head gasket RM0276 sold separately Riser gasket RM0274A sold separately Normalized SKU: R028023
-20% sale
Barr Not Qualified for Free Shipping Barr Mercruiser 3.0L 4 Cylinder Exhaust Manifold #MC-1-860235
00
DAYS
00
HRS
00
MIN
00
SEC
Barr Barr Mercruiser 3.0L 4 Cylinder Exhaust Manifold #MC-1-860235 $632.20 $789.06
Barr MC-1-860235 Manifolds Cast iron combination intake & exhaust manifold fits Mercruiser 120 HP 153 CID & 140 HP 181 CID marine engines. 3.0L Mercruiser exhaust manifold For Mercruiser 3.0L 140 HP 4-cylinder marine engines from 1990 and up Fits Vortec-style cylinder head Includes mounting hardware, gaskets, and blue drain plug Heavy duty cast iron Painted black Replaces Barr MC1-860235 Replaces Mercruiser 860235A03, 806867A12, 806867A9, 806867A3, 806867A8, 806867A2, 99798A18, and 816329A3 Normalized SKU: MC1860235
-14% sale
Volvo Penta Not Qualified for Free Shipping Volvo Penta Starboard Catalyst Exhaust Manifold #22754563 Volvo Penta Not Qualified for Free Shipping Volvo Penta Starboard Catalyst Exhaust Manifold #22754563
00
DAYS
00
HRS
00
MIN
00
SEC
Volvo Penta Volvo Penta Starboard Catalyst Exhaust Manifold #22754563 $2,157.81 $2,503.06
Volvo Penta 22754563 Manifolds Exhaust manifold for various Volvo Penta marine engines with catalyst exhaust systems. Does not include catalyst, gaskets, or connecting hardware (sold separately) Fits Volvo 3.0GLP-N, V8-350-C-N, V8-300-CE-N, V8-350-CE-M, V8-350-C-P, V8-350-CE-P, V8-350-CE-N, V8-300-C-N, V8-300-C-M, V8-350-C-M, V8-300-CE-P, V8-300-C-P, V8-300-CE-M, V8-380-CE-N, V8-380-C-P, V8-430-C-P, V8-380-CE-P, V8-430-CE-M, V8-380-C-N, V8-380-C-M, V8-380-CE-M, V8-430-CE-P, V8-430-CE-N, V8-430-C-M, V8-430-C-N, V8-350-CE-S, V8-350-C-S, V8-300-CE-S, AND V8-300-C-S model engines Starboard side Original Volvo Penta This product replaces: 22226333 Normalized SKU: 22754563

Frequently Asked Questions

First Choice Marine is an online marine retailer carrying a diverse line of marine parts and accessories and related items from industry-respected and demanded manufacturers and suppliers. Through our diverse distributor network, we are able to access over 150,000 items, including our current site inventory, new products being added, and special order items. If you need it on your boat... we are your one-stop shop!

Yes, we offer FREE Shipping on most orders over $149 to US-48*.

Each product displays a shipping status message, just above the item price. Below is the meaning for each of these codes.

  • Qualifies for Free Shipping: This item qualifies for free shipping when the order is $149+
  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
  • Oversized - Not Qualified for Free Shipping: This item is too large/heavy to qualify for free shipping
  • Hazardous Item - Not Qualified for Free Shipping: This item is hazardous and does not qualify for free shipping
  • Truck Freight - Not Qualified for Free Shipping: This item has to be shipped via truck freight. Please contact us for a quote
  • In-Store Pickup Only: This item can only be picked up in our Grain Valley, MO retail store

Below the price of the item, on the product page, there is a message indicating the availability of the product.

The quantity on hand is updated as inventory events happen and matches what we have available. If you have urgent needs and we are close to what you need, contact us, and we can confirm stock.

We offer a hassle-free return policy. If you're not completely satisfied with your purchase, you can return it within 30 days for a full refund or exchange.

If you need to return an item, please follow the guidelines here so we can process a prompt refund and assist you in finding the correct item.

Free Shipping

On most orders $149+ to the continental 48 US states.

Secure Shopping

Fast, secure checkout with a variety of payment methods.

Shop with confidence

25+ years serving the marine industry.

Support center

Need help? Contact us via live chat, phone, or email.