• 855676003 Mercury MerCruiser Thermostat | Genuine Quicksilver OEM Part
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855676003 Mercury MerCruiser Thermostat | Genuine Quicksilver OEM Part

855676003 Mercury MerCruiser Thermostat | Genuine Quicksilver OEM Part

$44.00 AUD
$44.00 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Genuine Quicksilver FourStroke Thermostat - Part Number: 855676003

A genuine Quicksilver thermostat for selected Mercury and Mariner FourStroke outboards. This thermostat is part of the 855676 / 825212 thermostat family and helps control operating temperature in small and mid-range FourStroke cooling systems.

⚙️ Key Features

  • Genuine Quicksilver OEM thermostat
  • Correct Mercury part number 855676003
  • Common 60°C / 140°F FourStroke thermostat application
  • Related to 825212001, 825212T02 and 855676A1 references
  • Used across selected Mercury / Mariner 13.5HP to 50HP FourStroke models, with additional FourStroke applications where specified

🚤 Compatibility

Commonly used on

  • Mercury / Mariner FourStroke cooling system thermostat applications

Typically suits

  • Engine models:
  • Mercury / Mariner 13.5HP FourStroke International applications where 855676003 is specified
  • Mercury / Mariner 15HP FourStroke applications where 855676003 is specified
  • Mercury / Mariner 25HP FourStroke applications where 855676003 is specified
  • Mercury / Mariner 30HP FourStroke - USA serial 0G760300 to 1B226999
  • Mercury / Mariner 30HP FourStroke - Belgium serial 0P017000 to 0P400999
  • Mercury / Mariner 40HP FourStroke - USA serial 0G231123 and up
  • Mercury / Mariner 40HP FourStroke - Belgium serial 0P017000 and up
  • Mercury / Mariner 40HP 3-cylinder FourStroke - serial 1C049739 and up where specified
  • Mercury / Mariner 45HP FourStroke applications where 855676003 is specified
  • Mercury / Mariner 50HP FourStroke - USA serial 0G231123 to 0T178499
  • Mercury / Mariner 40HP, 50HP and 60HP EFI FourStroke applications where the 855676003 thermostat family is specified
  • HP Range: 13.5HP - 60HP primary FourStroke range, with additional FourStroke applications where specified
  • Engine Type: Mercury / Mariner FourStroke outboard
  • Temperature Rating: commonly 60°C / 140°F thermostat family

🔌 Function

The thermostat opens and closes with engine temperature to regulate cooling water flow and maintain stable engine operating temperature.

⚠️ Common Signs of Failure

  • Overheating
  • Engine running too cold
  • Poor warm-up or idle quality
  • Temperature warning
  • Thermostat stuck, corroded or blocked by debris

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 855676003 current thermostat service reference
  • 855676A1 related thermostat kit reference
  • 825212001 related OEM thermostat reference
  • 825212T02 related service reference
  • 855676 earlier OEM reference

OEM / Related Numbers

  • 855676003
  • 855676
  • 855676A1
  • 825212001
  • 825212
  • 825212T02

Aftermarket / Verified Equivalents

  • Sierra: 18-3642
  • Recmar: REC825212T02
  • Yamaha equivalent family: 6G8-12411-00 / 6G8-12411-01

📦 Condition

  • Genuine Quicksilver part
  • Brand new
  • Supplied in original or equivalent packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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