Contact Us
My Account
Search Over 1 Million OEM Parts
Most parts in stock- Same day fulfillment

Select your engine to find guaranteed-fit parts:

Thermostat (143 Degrees) 833072003

Satisfaction rating 5 out of 5 (16 Ratings)
$48.99
You save $1.34. (3%) $50.33
5+ IN STOCK
Ships Immediately

Product Description

Mercury factory part. Search for more factory parts & parts diagrams.

1 Product Questions

WHAT IS THE TEMPETURE OF THIS THERMOSTAT MY BOAT IS RUNNING HOTER WITH NEW ONE

VINCENT BUDZITOWSKI

Answer:

This thermostat opens at 143 degrees.

16 Product Reviews

I had a problem with shipment being short 1 gasket. I emailed them, got an immediate response and received my part in a couple days. Thumbs up for the excellent and prompt response.
by

by

by

Excellent parts great prices easy to navigate website to find exact part. However order was placed on wednesday september 2 2020 before 3 pm mst website guaranteed 2 day delivery if ordered and paid for 2 day delivery before 3 pm mst my order arrived september 9 2020 was unable to use our boat for Labor day weekend Extremely upset shipping promise was not kept !! arrived one week late paid extra money for 2 day shipping !!
by

by

by

Superb👍🏼👍🏼
by

by

Mercury 150 optimax

Repair Difficulty
Easy
Repair Time
Less than 30 mins
Good
by

Problem fixed: Water pump

Replaced water pump thermostats

OPTIMAX 150

by

by

2006 Mercury Optimax 150

Repair Difficulty
Medium
Repair Time
2 to 4 hours
The best! Great website with cross references of serial numbers to parts. Best customer service people if you have any questions..they pick up the phone and actually really try to help! My go to for all my parts.
by

Problem fixed: Engine temp sensors set off

Replaced water pump, thermostats and poppet valve. Also replace cathodic plates and flo torq given work on the lower unit...they were due.

Mercury 225

Repair Difficulty
Easy
Repair Time
30 to 60 mins
by

Problem fixed: Routine maintenance

Great place to order parts for my 1999 mercury 225 outboard. Replaced water pump and fuel filter. I will definitely order from crowley marine again.

Mariner 150 DFI

Repair Difficulty
Medium
Repair Time
1 to 2 hours
Have found pricing to be good. Has a lot of parts in stock. Order fill is fast.
by

Problem fixed: Temperature difference between cylinder banks, low water pressure.

Needed to change thermostats in engine block. To achieve enough clearance to remove thermostats it was necessary to loosen but not remove fuel rails. Also changed water impeller.

Twin 1998 Mariner 225 Off Shore EFI 2-strokes

Crowley did not always have all the parts I needed every time, but they gave me the contact info of other suppliers who did. With this high level of service, I shop Crowley first. Ron Eagle River, Alaska Trophy 2802 `Attitude`
by

by

Product Fitment Grid

This guide is to be used as a reference only. You must verify fitment using your model or serial number.

Customers Also purchased

Supersession Chain

Name SKU Superceding SKU
Thermostat (143 Degrees) VIEWING THIS PRODUCT 833072003 CURRENT
Thermostat (62C/143F) 833072 833072003

Aftermarket Product Interchange

Name SKU Price Brand
Thermostat 18-3536 - Sierra Marine
Mercury Thermostat 2.5 DFI Oem #833072003 ME-T03 - Red Rhino
Due to manufacturer policy OEM Mercury products can only be shipped to addresses within the United States.