Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Block Off Plate #18-4008
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Sierra Sierra Block Off Plate #18-4008 $9.33 $11.14
Sierra 18-4008 Manifold PartsBlock Off PlateOEM Interchange:MERCURY MARINE: 60207Sierra Block Off Plate #18-4008Normalized SKU: 184008UPC Code: 030999563194
Sold out -16% sale
Sierra Not Qualified for Free Shipping Sierra Manifold End Plate #18-1995
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Sierra Sierra Manifold End Plate #18-1995 $2.07 $2.44
Sierra 18-1995 Manifold PartsManifold End PlateOEM Interchange:MERCURY MARINE: 47638Sierra Manifold End Plate #18-1995Normalized SKU: 181995UPC Code: 030999752611
Sold out -16% sale
Sierra Not Qualified for Free Shipping Sierra Manifold Block Off Plate #18-1990
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Sierra Sierra Manifold Block Off Plate #18-1990 $2.82 $3.32
Sierra 18-1990 Manifold PartsManifold Block Off PlateOEM Interchange:MERCURY MARINE: 73813A1Sierra Manifold Block Off Plate #18-1990Normalized SKU: 181990UPC Code: 030999752567
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Manifold Spacer #18-1984
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Sierra Sierra Manifold Spacer #18-1984 $185.96 $236.19
Sierra 18-1984 Manifold PartsManifold SpacerOEM Interchange:CRUSADER: 98128Sierra Manifold Spacer #18-1984Normalized SKU: 181984UPC Code: 808282145095
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Manifold Spacer #18-1985
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Sierra Sierra Manifold Spacer #18-1985 $187.32 $237.91
Sierra 18-1985 Manifold PartsManifold SpacerOEM Interchange:MERCURY MARINE: 93322Sierra Manifold Spacer #18-1985Normalized SKU: 181985UPC Code: 808282145699
Sold out -22% sale
Sierra Not Qualified for Free Shipping Sierra Manifold Spacer #18-1949
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Sierra Sierra Manifold Spacer #18-1949 $201.09 $255.40
Sierra 18-1949 Manifold PartsManifold SpacerSierra Manifold Spacer #18-1949Normalized SKU: 181949UPC Code: 808282127480
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Manifold End Plate #18-1942
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Sierra Sierra Manifold End Plate #18-1942 $42.80 $51.35
Sierra 18-1942 Manifold PartsManifold End PlateOEM Interchange:CHRYSLER INBOARD: 24695566CHRYSLER INBOARD: 3675826Sierra Manifold End Plate #18-1942Normalized SKU: 181942UPC Code: 808282243272
Sold out -20% sale
Sierra Not Qualified for Free Shipping Sierra Manifold End Plate #18-1941
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Sierra Sierra Manifold End Plate #18-1941 $86.01 $106.78
Sierra 18-1941 Manifold PartsManifold End PlateOEM Interchange:CHRYSLER INBOARD: 2846106Sierra Manifold End Plate #18-1941Normalized SKU: 181941UPC Code: 808282257620
Sold out -17% sale
Sierra Not Qualified for Free Shipping Sierra Manifold End Plate #18-1911
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Sierra Sierra Manifold End Plate #18-1911 $26.69 $31.86
Sierra 18-1911 Manifold PartsManifold End PlateSierra Manifold End Plate #18-1911Normalized SKU: 181911UPC Code: 808282127398
-22% sale
Sierra Not Qualified for Free Shipping Sierra Manifold Riser Spacer #18-1908
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Sierra Sierra Manifold Riser Spacer #18-1908 $201.68 $256.15
Sierra 18-1908 Manifold PartsManifold Riser SpacerOEM Interchange:MERCURY MARINE: 93322Sierra Manifold Riser Spacer #18-1908Normalized SKU: 181908UPC Code: 808282127503
Sold out -20% sale
Sierra Not Qualified for Free Shipping Sierra Manifold Spacer #18-1906
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Sierra Sierra Manifold Spacer #18-1906 $108.66 $134.89
Sierra 18-1906 Manifold PartsManifold SpacerOEM Interchange:MERCURY MARINE: 61851Sierra Manifold Spacer #18-1906Normalized SKU: 181906UPC Code: 808282127497

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.

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