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Sierra 18-3660 Marine Thermostat Kit for Volvo Penta Stern Drive

Part of: Sierra Thermostat Kit for Volvo Penta Marine Engines

Other options in this family: Sierra 18-3674 Sierra 18-3677 Sierra 18-3671 Sierra 18-3618 Sierra 18-3621

Manufacturer

Picture for manufacturer Sierra

Part Number

18-3660
13 reviews
Sale Price

$40.21

1 left at this price

delivery box

Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3660 is a replacement thermostat kit engineered for Volvo Penta stern drive and inboard marine engines. Designed to meet OEM specifications, this kit provides reliable engine temperature regulation to protect your marine powerplant from overheating and ensure consistent performance on the water.

Key Features:

  • Temperature Rating: 76°C (approximately 165°F)
  • Durable, non-corrosive construction built for the harsh marine environment
  • Hard-wearing components engineered to OEM fit and function
  • Direct replacement — no modification required

Replaces OEM Part Numbers:

  • Volvo Penta: 875787, 3831425, 1544097, 1544297, 467014, 875789
  • Mallory: 9-43008

Compatible Engine Models:

  • Volvo Penta D40, MD30A, MD40A, TMD40A, TMD40B, TMD40C
  • Volvo Penta AQD40A, TAMD40A, TAMD40B, AD40B, AQAD40A, AQAD40B

Sierra International is a leading manufacturer of premium marine replacement parts. The 18-3660 thermostat kit delivers the precision fit and reliable temperature control that Volvo Penta inboard and stern drive owners demand.

Glad that I can pay through my Amazon Account! Awesome!

Prices are comparable to other retailers. And they have items in stock that others were saying it would take a month. Fast shipping and great communication. Thank

Great prices fast shipping

great experience, good price, item arrived within 4 days of purchase, would do business with again in future !

paid for 2 day shipping i believe the shipping company screwed up but i needed it asap and it took to long missed my deadline. otherwise no complaints great product

I shopped around on the internet and Autoplicity was the most reasonable price for the same quality brand name locking hubs i was looking for. Only con was i read on internet they had free shipping and that wasn't so on my order which was disappointing.

Needs more info and better pictures.

Google searching produced this company as the lowest price on a set of spark plug wires. I like to deal with eBay, but I decided to try it out. Though the shipping was a bit more than Google estimated, it was still the lowest price! The item shipped quickly and was perfect with plenty of communication. Great seller!

I wish there something that told me an estimate of when the item leaves the warehouse

Nice and easy

This website purchase was by far the easiest when ordering auto parts. Most websites make you retype you make, model, and year over and over.

Autoplicity had the best price for what I needed. I received my order within 2 days boxed up nice and tight. What more could you ask for? I will be a repeat customer.

all went smooth with check out now to see how fast the shipping concludes..

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