Sierra Thermostat Housing, Stainless Steel, 18-1989
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- Ships from U.S. warehouses. Shipping cost is shown at checkout.
- 30-day returns on new, unused items in original packaging. Return policy
- Not sure it fits? Call (832) 308-3163, Mon–Thu 9–5, Fri 9–2 Central.
- Secure checkout with all major credit cards.
Description
The Sierra 18-3677 is a 160 degree thermostat kit for OMC and Volvo engines. Applications include OMC 4.3L, 5.0L and 5.8L '94-'97, 4.3HO '91-'97 and 5.8EFI '93-'97, and Volvo 4.3GL/GS/Gi, 5.0FL/Fi, 5.7GL/Gi and 5.8FL/Fi/Fsi.
Specifications
- Brand: Sierra
- Type: Thermostat kit
- Temperature rating: 160°
- Application: OMC 4.3L, 5.0L & 5.8L '94-'97 / 4.3HO '91-'97 / 5.8EFI '93-'97 / Volvo 4.3GL/GS/Gi, 5.0FL/Fi, 5.7GL/Gi & 5.8FL/Fi/Fsi
- Manufacturer part number: 18-3677
Specifications
- Brand
- Sierra
- Manufacturer part #
- 18-3677
- JMS SKU
- JMS148876
- UPC
- 808282146351
- Shipping weight
- 2 lb
Shipping
Most orders ship within 1–2 days from U.S. warehouses. You'll see the shipping cost and choose a method at checkout.
Returns
Return new, unused items in original packaging within 30 days. Defective items after 30 days follow the manufacturer's warranty. Return policy
Questions
Call (832) 308-3163 or send us a message. Have your boat's make, model and year handy.



