Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Adapter Cover Gasket #18-1205
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Sierra Sierra Adapter Cover Gasket #18-1205 $3.66 $4.30
Sierra 18-1205 Engine GasketsSierra Adapter Cover Gasket #18-1205OEM Interchange:OMC: 329828Gaskets: Adapter CoverSierra Adapter Cover Gasket #18-1205Normalized SKU: 181205UPC Code: 030999752307
Sold out -16% sale
Sierra Not Qualified for Free Shipping Sierra Retainer Gasket #18-1221
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Sierra Sierra Retainer Gasket #18-1221 $1.56 $1.84
Sierra 18-1221 Engine GasketsSierra Retainer Gasket #18-1221OEM Interchange:OMC: 330273Gaskets: RetainerSierra Retainer Gasket #18-1221Normalized SKU: 181221UPC Code: 030999752369
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Inner Exhaust Gasket 2-pk #18-0999-9
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Sierra Sierra Inner Exhaust Gasket 2-pk #18-0999-9 $2.72 $3.20
Sierra 18-0999-9 Engine GasketsSierra Inner Exhaust Gasket 2-pk #18-0999-9OEM Interchange:OMC: 323459Gaskets: Exhaust HousingSierra Inner Exhaust Gasket (Priced Per Pkg of 2) #18-0999-9Normalized SKU: 1809999UPC Code: 808282162283
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Leaf Plate Gasket #18-0991
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Sierra Sierra Leaf Plate Gasket #18-0991 $2.86 $3.36
Sierra 18-0991 Engine GasketsSierra Leaf Plate Gasket #18-0991OEM Interchange:OMC: 321907Gaskets: Leaf PlateSierra Leaf Plate Gasket #18-0991Normalized SKU: 180991UPC Code: 030999755728
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Throttle Body to Manifold Gasket #18-0987
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Sierra Sierra Throttle Body to Manifold Gasket #18-0987 $5.22 $6.14
Sierra 18-0987 Engine GasketsSierra Throttle Body to Manifold Gasket #18-0987OEM Interchange:OMC: 332319Sierra Throttle Body to Manifold Gasket #18-0987Normalized SKU: 180987UPC Code: 808282257477
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Leaf Plate Gasket #18-0981
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Sierra Sierra Leaf Plate Gasket #18-0981 $3.64 $4.28
Sierra 18-0981 Engine GasketsSierra Leaf Plate Gasket #18-0981OEM Interchange:OMC: 321479Gaskets: Leaf PlateSierra Leaf Plate Gasket #18-0981Normalized SKU: 180981UPC Code: 030999755650
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Timing Chain Cover Gasket #18-0976
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Sierra Sierra Timing Chain Cover Gasket #18-0976 $4.54 $5.34
Sierra 18-0976 Engine GasketsSierra Timing Chain Cover Gasket #18-0976OEM Interchange:CRUSADER: 20129MERCURY MARINE: 27-14250Gaskets: Timing Chain Cover SetSierra Timing Chain Cover Gasket #18-0976Normalized SKU: 180976UPC Code: 030999755643
-15% sale
Sierra Not Qualified for Free Shipping Sierra Inner Leaf Plate Gasket #18-0959
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Sierra Sierra Inner Leaf Plate Gasket #18-0959 $4.54 $5.34
Sierra 18-0959 Engine GasketsSierra Inner Leaf Plate Gasket #18-0959OEM Interchange:OMC: 318924Gaskets: Leaf PlateSierra Inner Leaf Plate Gasket #18-0959Normalized SKU: 180959UPC Code: 030999755568
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Bypass Cover Gasket #18-0967
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Sierra Sierra Bypass Cover Gasket #18-0967 $4.71 $5.54
Sierra 18-0967 Engine GasketsSierra Bypass Cover Gasket #18-0967OEM Interchange:OMC: 319332Gaskets: Bypass CoverSierra Bypass Cover Gasket #18-0967Normalized SKU: 180967UPC Code: 030999755612
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Water Passage Gasket #18-0953
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Sierra Sierra Water Passage Gasket #18-0953 $3.76 $4.42
Sierra 18-0953 Engine GasketsSierra Water Passage Gasket #18-0953OEM Interchange:OMC: 317951Gaskets: Water PassageSierra Water Passage Gasket #18-0953Normalized SKU: 180953UPC Code: 030999755544
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Relief Valve Plate Gasket #18-0952
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Sierra Sierra Relief Valve Plate Gasket #18-0952 $2.64 $3.10
Sierra 18-0952 Engine GasketsSierra Relief Valve Plate Gasket #18-0952OEM Interchange:MERCURY MARINE: 27-88907Gaskets: Relief ValveSierra Relief Valve Plate Gasket #18-0952Normalized SKU: 180952UPC Code: 030999755537
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Upper Gearcase Dipstick Gasket #18-0939
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Sierra Sierra Upper Gearcase Dipstick Gasket #18-0939 $1.21 $1.42
Sierra 18-0939 Engine GasketsSierra Upper Gearcase Dipstick Gasket #18-0939OEM Interchange:OMC: 315189Gaskets: GearcaseSierra Upper Gearcase Dipstick Gasket #18-0939Normalized SKU: 180939UPC Code: 808282257460
Sold out -16% sale
Sierra Not Qualified for Free Shipping Sierra Pivot Cap Cover Gasket #18-0947
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Sierra Sierra Pivot Cap Cover Gasket #18-0947 $0.78 $0.92
Sierra 18-0947 Engine GasketsSierra Pivot Cap Cover Gasket #18-0947OEM Interchange:OMC: 909529Gaskets: Pivot CapSierra Pivot Cap Cover Gasket #18-0947Normalized SKU: 180947UPC Code: 030999751959
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Trunion Cap Gasket #18-0949
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Sierra Sierra Trunion Cap Gasket #18-0949 $3.93 $4.62
Sierra 18-0949 Engine GasketsSierra Trunion Cap Gasket #18-0949OEM Interchange:OMC: 316499Gaskets: Trunion CapSierra Trunion Cap Gasket #18-0949Normalized SKU: 180949UPC Code: 030999751973
-16% sale
Sierra Not Qualified for Free Shipping Sierra Deflector Plate Gasket #18-0915
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Sierra Sierra Deflector Plate Gasket #18-0915 $7.68 $9.04
Sierra 18-0915 Engine GasketsSierra Deflector Plate Gasket #18-0915OEM Interchange:CHRYSLER FORCE: 27-F406406Gaskets: Deflector CoverSierra Deflector Plate Gasket #18-0915Normalized SKU: 180915UPC Code: 030999751805
-15% sale
Sierra Not Qualified for Free Shipping Sierra Tilt Motor Gasket #18-0917
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Sierra Sierra Tilt Motor Gasket #18-0917 $2.40 $2.82
Sierra 18-0917 Engine GasketsSierra Tilt Motor Gasket #18-0917OEM Interchange:OMC: 311508Gaskets: Tilt MotorSierra Tilt Motor Gasket #18-0917Normalized SKU: 180917UPC Code: 030999751812
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Baffle Plate Gasket #18-0922
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Sierra Sierra Baffle Plate Gasket #18-0922 $1.31 $1.54
Sierra 18-0922 Engine GasketsSierra Baffle Plate Gasket #18-0922OEM Interchange:MERCURY MARINE: 27-703351Gaskets: BaffleSierra Baffle Plate Gasket #18-0922Normalized SKU: 180922UPC Code: 030999755377
Sold out -16% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Gasket #18-0903
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Sierra Sierra Water Pump Gasket #18-0903 $2.65 $3.12
Sierra 18-0903 Engine GasketsSierra Water Pump Gasket #18-0903OEM Interchange:MERCURY MARINE: 27-49110OMC: 3853361VOLVO: 3853361YAMAHA: YSG-38600-39-G0Gaskets: Water PumpSierra Water Pump Gasket #18-0903Normalized SKU: 180903UPC Code: 030999755292
Sold out -15% sale
Sierra Not Qualified for Free Shipping Sierra Water Pocket Cover Gasket #18-0894
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Sierra Sierra Water Pocket Cover Gasket #18-0894 $2.55 $3.00
Sierra 18-0894 Engine GasketsSierra Water Pocket Cover Gasket #18-0894OEM Interchange:MERCURY MARINE: 27-55810MERCURY MARINE: 27-558101Gaskets: Water CoverSierra Water Pocket Cover Gasket #18-0894Normalized SKU: 180894UPC Code: 030999755230
-25% sale
Sierra Not Qualified for Free Shipping Sierra Water Pump Gasket Priced Per Pkg of 2 #18-0903-9
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Sierra Sierra Water Pump Gasket Priced Per Pkg of 2 #18-0903-9 $5.40 $7.12
Sierra 18-0903-9 Engine GasketsFits: GM V-8 (454 & 502 cid) enginesGaskets: Water PumpSierra Water Pump Gasket (Priced Per Pkg of 2) #18-0903-9Normalized SKU: 1809039UPC Code: 808282161927

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.

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  • Qualifies for Free Ground Shipping: This item qualifies for free ground shipping when the order is $149+.
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  • 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.

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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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