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HP Years Sierra Valve Diaghragm
1201988-1991 18-1222
1401988-1991 18-1222
1501978-1991 18-3567
1551984-1991 18-3567
1751977-1991 18-3567
1851984-1985 18-3567
2001977-1983 18-3567
2001988-1993 18-1222
2251988-1993 18-1222
2351978-1985 18-3567

mercury thermostat gaskets

Our Price: $2.99 Thermostat Grommet Gasket - Sierra
Part # 18-0182
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Part # 18-0182
Replaces OEM part #

  • OMC 310058
  • MERCURY MARINE 27-62386
  • Pkg. of 2

johnson / evinrude / omc 318917 replacement parts

Our Price: $1.99 Thermostat Gasket - Sierra
Part # 18-0397
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Part # 18-0397
Replaces OEM part #

  • OMC 318917

sierra 18-0412 thermostat gasket

Our Price: $2.99 Thermostat Gasket - Sierra
Compare at $3.99
You Save: $1.00
(25% Off)
Part # 18-0412
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Part # 18-0412
Replaces OEM part #

  • OMC 337068
Package of 2

sierra 18-0426 thermostat gasket

Our Price: $3.99 Thermostat Gasket - Sierra
Part # 18-0426
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Part # 18-0426
Replaces OEM part #

  • OMC 305196

sierra 18-0441 thermostat gasket

Our Price: $1.99 Thermostat Gasket - Sierra
Part # 18-0441
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Part # 18-0441
Replaces OEM part #

  • OMC 329076
Package of 2

glm 34440 replacement parts

Our Price: $0.99 Thermostat Gasket - Sierra
Compare at $1.29
You Save: $0.30
(23% Off)
Part # 18-0675
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Part # 18-0675
Replaces OEM part #

  • OMC 321932
For: Evinrude/Johnson V4

sierra 18-0679 thermostat gasket

Our Price: $2.99 Thermostat Gasket - Sierra
Part # 18-0679
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Part # 18-0679
Replaces OEM part #

  • OMC 311145

johnson / evinrude / omc 313416 replacement parts

Our Price: $1.99 Thermostat Gasket - Sierra
Part # 18-0929
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Part # 18-0929
Replaces OEM part #

  • OMC 313416
  • OMC 313416
  • VOLVO 3852120
For: Evinrude/Johnson 3 Cylinder
Package of 2
For: 3.0L GS, GL

sierra 18-0977 thermostat gasket

Our Price: $1.99 Thermostat Gasket - Sierra
Part # 18-0977
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Part # 18-0977
Replaces OEM part #

  • OMC 332369
For: Evinrude/Johnson V4
Package of 2

sierra 18-1202 thermostat gasket

Our Price: $1.99 Thermostat Gasket - Sierra
Compare at $2.49
You Save: $0.50
(20% Off)
Part # 18-1202
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Part # 18-1202
Replaces OEM part #

  • OMC 329830
Package of 2

glm 46130 replacement parts

Our Price: $9.99 Thermostat Valve Diaphragm - Sierra
Compare at $10.99
You Save: $1.00
(9% Off)
Part # 18-1222
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Part # 18-1222
V-4/V-6 Loop Charge

Replaces OEM part #

  • OMC 394408

johnson / evinrude / omc 321184 replacement parts

Our Price: $1.99 Thermostat Gasket - Sierra
Compare at $2.69
You Save: $0.70
(26% Off)
Part # 18-2546
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Part # 18-2546
Replaces OEM part #

  • OMC 321184
For: Evinrude/Johnson V6
Package of 2

glm 34630 replacement parts

Our Price: $1.99 Thermostat Gasket - Sierra
Compare at $2.29
You Save: $0.30
(13% Off)
Part # 18-2548
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Part # 18-2548
Replaces OEM part #

  • OMC 332108
For: Evinrude/Johnson 3 Cylinder
Package of 2

mallory gasket, thermostat cover 9-60449

Our Price: $0.99 Mallory Gasket, Thermostat Cover 9-60449
Compare at $1.24
You Save: $0.25
(20% Off)
Part # 9-60449
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Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):321184
Fits Application:V-6

mallory gasket, thermostat 9-60448

Our Price: $0.99 Mallory Gasket, Thermostat 9-60448
Part # 9-60448
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Replaces Original Equipment Manufacturer(OEM):Johnson/Evinrude
Replaces Original Equipment Manufacturer # (OEM #):332369
Fits Application:V-4

mallory gasket, thermostat 9-60002

Our Price: $1.99 Mallory Gasket, Thermostat 9-60002
Part # 9-60002
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Replaces GLM #:30610
Replaces Original Equipment Manufacturer(OEM):Mercury
Replaces Original Equipment Manufacturer # (OEM #):27-62386
Fits Application:used in 18-3672, 18-3569, 18-3671 kits

Sierra

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This product typically leaves our warehouse in 1 to 3 business days.
To determine the shipping cost and estimated delivery date for this item click Add to Cart, then click Calculate Shipping inside your shopping cart.

General Policy

We work hard to provide you with the best value in product prices and shipping charges, and to get your order to you in a timely, safe, and convenient manner. Internet sales involve the cost of getting the product to you, and shipping carriers base that cost on the size and weight of the package, plus the distance the package travels from our warehouse to your door. We keep our product prices low, negotiate low shipping charges from our carriers and pass those savings on to you, and we don't charge sales tax (except for residents of Utah), so your order from iboats.com is the best value for all your boating needs.

Our standard shipping method is UPS ground, which typically takes 2-5 additional transit days after the order has left our warehouse, depending on your delivery address. We also offer other shipping options, including expedited delivery, and the actual delivery date will depend on the shipping options you choose.

Shipping to Canada

Most products sold by iboats.com can be purchased and shipped to Canada. Some restrictions apply to certain items, such as hazardous materials, over-weight products, and the method of shipping. Available product lines, shipping rates and fees may vary depending on the delivery address for your order.

Currently, iboats.com offers ground shipping to all Canada provinces. Our Canadian brokerage service accelerates your orders through the Customs clearance process and facilitates the delivery of your order through Canada Post or the best method based on your shipping address. We do not currently offer expedited shipping methods to Canada.

At iboats.com we want to simplify your transaction and give you a pleasing purchasing experience so you'll come shop with us again and again. We therefore calculate all the duties, taxes, and other fees specific to Canadian orders and show you the total landed cost of getting the order to your door. There are no hidden fees and will be no surprise COD charges when the package is delivered to you.

Order History & Tracking

We provide several methods to track your order and keep you informed of your order status and expected delivery date. After completing an iboats.com purchase transaction, an account will automatically be created for your provided email address. You'll receive an email from iboats.com Customer Service informing you of your new User Account and the many benefits it provides. If you don't wish to have an iboats.com Account with password, do nothing and your account won't be registered; however, you can respond to the instructions in the email and easily register your account and setup a password. This will allow you to sign in to your account by choosing the Order Status link from any iboats.com page, where you can browse your order history and track the status of all your orders - tracking numbers are displayed that link to the delivery carrier's tracking webpage.

If you have provided your email address during checkout, we will also email you your invoice, which includes a link for tracking your order and viewing the current status of your order. Refer to your invoice email and tracking link any time you wish to track the status of your order

Return Policy

We're here to help! We understand that sometimes a product you purchase just doesn't work out, which is why we want to make the return process as easy as possible for you. After all, we want you to be satisfied with your order so you'll return again and again as an iboats.com customer, and to also recommend us to your boating friends.

Unless specified otherwise, an item(s) may be returned within the first 30 days after the item(s) is shipped to you. Merchandise must be in new, unopened and unused condition with all original packaging in good condition; plus parts, accessories, manuals, and/or warranty cards included. You will need to receive a return authorization number (RA #) as well as instructions from our Customer Service Department.

If needed, we recommend starting your return online to receive a Return Authorization Number(RA #). Returned items(s) that do not have an RA # will not be accepted.

Warranty

iboats.com has a 30-day return policy. After 30 days of your purchase, the manufacturer of the product(s) will need to be contacted for a warranty claim. If you need assistance finding the manufacturers number please contact our Customer Service Department.

Returns for Canadian Customers

Canadian customers, please be careful when placing your order; iboats.com does not accept any return merchandise on Canadian orders unless the merchandise you received was defective, damaged, or an error was made by iboats.com. In such cases, return the merchandise within 30 days of the original shipping date for a full refund.

iboats.com Low Price Guarantee – Quick and Simple

We have the best selection of products at the best prices, guaranteed. 

Nobody beats our prices. If you find a current lower price on an identical, in-stock item from any nationally recognized marine Internet retailer, we will match the price. iboats.com works hard to bring you everyday low prices plus knowledgeable product advice, great in-stock selection, and outstanding customer service. Our guarantee covers it all, and if you’ve found a better price let us know and we’ll match it and work hard to make you a satisfied iboats customer for life.



  Quick:  Call 1-800-914-1123

  Simple:  Have the lower competitive price info ready, as outlined below.

  Buy with Confidence – We Won’t Be Beat!

 

Here’s what you need to supply us to verify a lower price:

  1. The retailer’s name and URL website address of where you found the lower price.
  2. The product name, manufacturer, model number, price, and shipping charges.
  3. Electronics products, trolling motors, and outboard engines are not available for price matching.

 

30-day Guarantee
Buy now with confidence, knowing that should there ever be a lower price from any nationally recognized U.S. marine Internet retailer for 30 days after your purchase, iboats will match that price and refund you the difference. Or we’ll match the price before your purchase. The price considered will be the advertised price plus shipping and handling charges.

Qualifying items must be verifiable on the Internet or through a current printed advertisement. Items must be identical, in-stock new products and not sold through a membership club or auction site or any of the following offers, such as free offers, multiple discounts like “buy one, get one at half off”, special orders, special bundles, clearance sales, mail-in rebate offers, typographical errors, private sales, non-retail websites, promo discounts, or limited-time offers.  All price matching is at the discretion of iboats.com and is subject to change at any time. iboats reserves the right to limit quantities. Price-match products are not eligible for special offers or discounts.

iboats.com – The Leader in Price Buster Confidence!

Do you need Professional Installation? iboats.com has teamed with a national network of independent installers that are ready to handle your installation needs.
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HP (120 to 235)
Years (1977 to 1993)
 
Please be aware of the following order dates below to have your items have the best chance of delivery by December 24. Shipping options apply to in-stock items only, and not made-to-order products such as boat covers and bimini tops. Mail handlers are extremely busy this time of year, therefore we cannot guarantee delivery before Christmas of any items. For the most up-to-date shipping information, please refer to the estimated delivery time specified in the shopping cart and checkout process.

HOLIDAY ORDERING CUTOFFS

Ground Delivery TUE 15th UPS Ground for most in-stock items
2nd Day Delivery SAT 19th Two-Day Shipping
Next Day Delivery MON 21st One-day Shipping
Same Day Delivery WED 23rd Email Gift Certificates
Order as late as 3pm EST