00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Exhaust Manifold Gasket Set #18-0602
$48.57
$58.28
Sierra 18-0602 Engine Gaskets
Exhaust Manifold Gasket Set
Fits: "CH" Model Small Block V8 305 & 350 CID (5.7L)
Contains: 18-2949, 18-0309-1, and 18-0306-1
Superseding to 18-0602-1
Normalized SKU: 180602UPC Code: 808282234003
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Gasket Set #18-0590
$24.99
$29.82
Sierra 18-0590 Engine GasketsGasket SetSierra Gasket Set #18-0590Normalized SKU: 180590UPC Code: 808282188795
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Water Tube Rubber Seal #18-0563
$1.11
$1.30
Sierra 18-0563 Engine GasketsWater Tube Rubber SealOEM Interchange:MERCURY MARINE: 26-36556Sierra Water Tube Rubber Seal #18-0563Normalized SKU: 180563UPC Code: 030999874627
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Adapter to Intermediate Housing Gasket #18-0548
$10.20
$12.17
Sierra 18-0548 Engine GasketsAdapter to Intermediate Housing GasketOEM Interchange:OMC: 909515Sierra Adapter to Intermediate Housing Gasket #18-0548Normalized SKU: 180548UPC Code: 030999874528
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Exhaust Leg Rubber Seal #18-0540
$16.41
$19.59
Sierra 18-0540 Engine GasketsExhaust Leg Rubber SealOEM Interchange:OMC: 320936Sierra Exhaust Leg Rubber Seal #18-0540Normalized SKU: 180540UPC Code: 030999874481
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Exhaust Leg Rubber Seal #18-0539
$8.03
$9.58
Sierra 18-0539 Engine GasketsExhaust Leg Rubber SealOEM Interchange:MERCURY MARINE: 37721Sierra Exhaust Leg Rubber Seal #18-0539Normalized SKU: 180539UPC Code: 030999874474
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Two Piece Rear Main Seal #18-0528
$7.06
$8.30
Sierra 18-0528 Engine GasketsTwo Piece Rear Main SealOEM Interchange:MERCURY MARINE: 26-56868OMC: 913745VOLVO: 3852805Sierra Two Piece Rear Main Seal #18-0528Normalized SKU: 180528UPC Code: 030999874399
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra One Piece Rear Main Seal #18-0519
$37.92
$45.50
Sierra 18-0519 Engine GasketsOne Piece Rear Main SealOEM Interchange:CRUSADER: 7070400MERCURY MARINE: 26-14240OMC: 3852657VOLVO: 3852657VOLVO: 912957Gaskets: Rear Main SealSierra One Piece Rear Main Seal #18-0519Normalized SKU: 180519UPC Code: 030999874313
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Water Tube Rubber Seal #18-0521
$0.26
$0.30
Sierra 18-0521 Engine GasketsWater Tube Rubber SealOEM Interchange:MERCURY MARINE: 26-36557Sierra Water Tube Rubber Seal #18-0521Normalized SKU: 180521UPC Code: 030999874337
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Valve Stem Seal #18-0518
$3.74
$4.40
Sierra 18-0518 Engine GasketsValve Stem SealOEM Interchange:CRUSADER: 7230530MERCURY MARINE: 26-34217OMC: 3853132OMC: 3854956OMC: 914323VOLVO: 3853132VOLVO: 3854956VOLVO: 914323Gaskets: Valve Stem SealsSierra Valve Stem Seal #18-0518Normalized SKU: 180518UPC Code: 030999874306
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Water Tube Rubber Seal #18-0514
$3.64
$4.28
Sierra 18-0514 Engine GasketsWater Tube Rubber SealOEM Interchange:MERCURY MARINE: 26-25329Sierra Water Tube Rubber Seal #18-0514Normalized SKU: 180514UPC Code: 030999874269
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Head Gasket #18-0498
$37.88
$45.45
Sierra 18-0498 Engine GasketsHead GasketOEM Interchange:VOLVO: 3580309Sierra Head Gasket #18-0498Normalized SKU: 180498UPC Code: 808282188931
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Water Pump Plate Gasket 2-pk #18-0499-9
$12.00
$14.32
Sierra 18-0499-9 Engine GasketsWater Pump Plate Gasket (Priced Per Pkg of 2)Sierra Water Pump Plate Gasket (Priced Per Pkg of 2) #18-0499-9Normalized SKU: 1804999UPC Code: 808282166519
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Intake Gasket #18-0488
$61.86
$74.23
Sierra 18-0488 Engine GasketsIntake GasketOEM Interchange:MERCURY MARINE: 27-807473A1PLEASURECRAFT: RM0250Sierra Intake Gasket #18-0488Normalized SKU: 180488UPC Code: 808282187255
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Gasket Set #18-0489
$104.04
$129.15
Sierra 18-0489 Engine GasketsGasket SetOEM Interchange:VOLVO: 876384Sierra Gasket Set #18-0489Normalized SKU: 180489UPC Code: 808282188979
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Intake Gasket #18-0487
$101.50
$126.00
Sierra 18-0487 Engine GasketsIntake GasketOEM Interchange:MERCURY MARINE: 27-8243261Sierra Intake Gasket #18-0487Normalized SKU: 180487UPC Code: 808282187248
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Pump Case Gasket #18-0483
$7.33
$8.62
Sierra 18-0483 Engine GasketsPump Case GasketOEM Interchange:YAMAHA: 63D-44316-00-00Sierra Pump Case Gasket #18-0483Normalized SKU: 180483UPC Code: 808282185442
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Water Pump Gasket #18-0479
$1.07
$1.26
Sierra 18-0479 Engine GasketsWater Pump GasketOEM Interchange:SUZUKI: 17472-92D10Sierra Water Pump Gasket #18-0479Normalized SKU: 180479UPC Code: 808282185428
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Water Pump Gasket #18-0480
$3.08
$3.62
Sierra 18-0480 Engine GasketsWater Pump GasketOEM Interchange:SUZUKI: 17472-98611Sierra Water Pump Gasket #18-0480Normalized SKU: 180480UPC Code: 808282185435
00
DAYS 00
HRS 00
MIN 00
SEC
DAYS 00
HRS 00
MIN 00
SEC
Sierra
Sierra Exhaust Elbow Gasket #18-0474
$13.16
$15.71
Sierra 18-0474 Engine GasketsExhaust Elbow GasketSierra Exhaust Elbow Gasket #18-0474Normalized SKU: 180474UPC Code: 808282126865
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.