Sierra 18-3653 Thermostat Kit

Sierra 18-3653 Thermostat Kit

$26.99 $37.99
Skip to product information
Sierra 18-3653 Thermostat Kit
  • Sierra 18-3653 Thermostat Kit
Sierra 18-3653 Thermostat Kit

Sierra 18-3653 Thermostat Kit

$26.99 $37.99

Sierra 18-3653 OMC, Volvo 160 Degree Thermostat Kit

Sierra high-quality engine parts are designed to meet OEM specifications. Used on OMC, Volvo Sterndrives Marine engines.

Kit Includes:

  • (1) 18-2858 Thermostat Gasket
  • (1) 18-2947 Thermostat Gasket
  • (1) 18-3554 Thermostat
  • (1) 18-7170 O-Ring
  • (1) 18-0929 Thermostat Gasket
  • (1) 18-0398 Thermostat Gasket

Interchangeable with:

  • GLM
    • 13430
  • Mallory
    • 9-43156

California Residents: warning sign WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov
Sierra Marine Part # SIE-18-3653 OMC Cobra Sterndrive Parts
In Stock & Ready to Order Secure nationwide shipping. Final delivery timing is shown at checkout.
SKU: SIE-18-3653
Not sure this is the correct part? Send your engine model, serial number, or photos and our team will verify fitment before you order.
Ask a Marine Parts Specialist

Need Help Finding the Right Part?

Get real fitment help from a marine business—not a generic marketplace.

Find My Part Call 716-691-9200
✓Quality Marine PartsOEM and trusted aftermarket expertise
✓Nationwide ShippingCarefully packed for safe delivery
✓Secure CheckoutShopify-powered payment protection
✓Expert SupportHelp from real marine professionals
Product Confidence

Built for the Job. Backed by Drydock.

Marine ApplicationSelected for use in demanding marine environments.
Direct ReplacementUse the part number and fitment details to confirm your application.
Technician SupportQuestions before installation? Our team is ready to help.
Drydock VerifiedSupported by a working marine service and parts operation.
Fitment & Technical Details

Order With Confidence

Marine fitment can depend on model, year, serial range, and prior service history. Confirm those details before installation.

Will This Part Fit?

Match the manufacturer part number, engine or drive model, and serial number range before ordering.

  • Check the current part number and any superseded numbers
  • Verify engine or drive model and serial number
  • Send photos when identification is uncertain
Have Drydock verify fitment →
Technician Tip

Verify before installing.

Compare the removed part, mounting points, electrical connections, and manufacturer numbers before opening sealed packaging or beginning installation.

Quick Specifications

Brand
Sierra Marine
Part Number
SIE-18-3653
Product Type
OMC Cobra Sterndrive Parts
Availability
In Stock
Support
Fitment help available
Complete the Repair

Commonly Needed Alongside This Part

Use these quick searches to find related maintenance and installation items. Confirm compatibility before ordering.

More Sierra Marine PartsBrowse related parts from the same manufacturer. Installation HardwareFind fasteners, seals, gaskets, and related supplies. Marine LubricantsProtect components and follow service requirements. Ask a TechnicianLet us help identify everything needed for the repair.
Policies & Support

Everything You Need Before Ordering

Fitment & Part Verification +
Marine parts can vary by engine model, serial range, year, and configuration. Confirm the manufacturer number and application before installation. Our Find My Part team can review serial numbers and photos.
Shipping Information +
Orders are prepared for safe nationwide shipment. Available carrier options, delivery estimates, and costs are calculated during checkout.
Returns & Exchanges +
Please confirm fitment before installation. Returned products must meet the requirements of the current Drydock Marine return policy, including condition and packaging requirements.
Warranty Support +
Warranty coverage varies by manufacturer and product condition. Contact our team with the product and order information for assistance.
Technical Support +
Our marine parts specialists can help review model numbers, serial numbers, interchange numbers, product photos, and related repair items before you order.
The Drydock Difference

Why Buy From Drydock Marine?

National e-commerce convenience backed by a real Western New York marine service, propeller, and parts operation.

Certified ExperienceKnowledge grounded in hands-on marine service.
Thousands of PartsNew, used OEM, rare, and hard-to-find inventory.
Propeller ExpertsProfessional propeller repair and application guidance.
Nationwide ShippingParts supplied to boaters and repair shops across the country.
Family OwnedPersonal service from a company invested in every customer.
Real Human SupportTalk with people who understand boats, engines, and parts.
Still Not Sure?

Let Us Find the Right Part

Send your serial number, model information, and photos. We will help identify the best available option.

Start a Parts Request
Sierra 18-3653 Thermostat Kit
Sierra 18-3653 Thermostat Kit$26.99

You may also like