First, Add Your Vehicle

Get an exact fit for your vehicle.
Duralast Thermostat 4139
Hover over image to zoom
Hover over image to zoom

Duralast Thermostat 4139

Shop All Duralast
Duralast701274https://www.autozone.com/cooling-heating-and-climate-control/thermostat/p/duralast-thermostat-4139/701274_0_0?searchText=S+4139
Part # 4139
SKU # 701274
Total price is: 11 dollars and 49 cents.
In stock | Estimated delivery June 18

PRODUCT SPECIFICATIONS

Warranty
Part #4139
SKU #701274
Weight0.2lbs
Start to Open Temperature192
Grade TypeStandard Replacement
Gasket Or Seal IncludedNo

PRODUCT DESCRIPTION

Manufactured from high quality components to meet the demanding conditions of the automotive cooling system. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
  • checkmark
    Consistent and precise response to cooling system needs
  • checkmark
    100% tested and calibrated
  • checkmark
    High grade stainless steel and copper construction
  • checkmark
    Meets or exceeds OEM standards
Customer Reviews
21 Reviews
83% of reviewers recommend this product.
15 recommendations

Ratings

Looking for something specific?
  • Sort by
  • Filter by
21 Reviews
  • Thermostat by duralast

    Tim
    1 month ago
    Verified Purchase
    Recommended

    Looks sturdy. Fits as designed to. Works great for the price

    Purchased for: 2007 ford escape

    Helpful?

  • N/A

    Sam
    5 months ago
    Verified Purchase
    Recommended

    Just what my car needed so the heat can work.

    Purchased for: 2007 Ford Fusion

    Helpful?

  • Thermostat

    Tam
    7 months ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Fit perfectly

    Purchased for: 2006 Ford Escape

    Helpful?

  • Get Zoned!!

    Chewy
    9 months ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    My car was over heating, so I started with the first domino, Domino Effect, thermastat, water pump, heatercore, head gasket, ext, changed the thermostat, water dropped, it opened, but still hot, water pump, took it off , busted wheel inside, so I went got water pump from AutoZone, this is a review on the thermostat. Sooooooo, u gotta wait for the next episode to hear about that, but yeah, that thermostat is good, good reviews, good deal, good for me , and yaw b good.

    Helpful?

  • The new thermostat solved my over heating issue.

    Anonymous
    9 months ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    replacement thermostat fit and install easy.

    Purchased for: 2012. Ford Fusion.

    Helpful?

  • Built to last

    Mp
    1 year ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Work like charm

    Purchased for: 2005 ford escape xlt

    Helpful?

  • Product on hand

    Murphy
    1 year ago
    Verified Purchase
    Sweepstakes Entry

    My alternator

    Purchased for: 2011 Mercury Mariner Premire

    Helpful?

  • Excelente

    Israel
    1 year ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Excelente

    Helpful?

  • That it will not break fast it will last me awhile

    Sasha
    2 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    That it was new and clean and easy to put in!

    Purchased for: Mazda tribute 2004

    Helpful?

  • It reminded me of the old duralast parts

    Josh
    2 years ago
    Verified Purchase

    It was just like the old dontlast and valucrap parts junk almost blew My engine because of failure

    Purchased for: 2011 fusion 3.0

    Helpful?

  • They don't work

    Eric
    2 years ago
    Verified Purchase
    Sweepstakes Entry

    The thermostat didn't work. My car was running hot and could have messed up my car. I took it out and my car is fixed.

    Purchased for: 2001 jaguar S type

    Helpful?

  • Price

    Benjamin
    2 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Works good

    Purchased for: 2005 Ford Taurus

    Helpful?

  • Works as it should

    jack
    2 years ago
    Verified Purchase
    Sweepstakes Entry

    Thermostat worked as it should and fit well. It does not come with the o-ring seal so be sure to save your old one or purchase separately.

    Purchased for: 2004 Ford Escape

    Helpful?

  • Didn't work

    JJ
    3 years ago
    Verified Purchase
    Sweepstakes Entry

    Thermostat wouldn't open up. Had to do job a second time because of defective part.

    Purchased for: 2012 Ford Fusion

    Helpful?

  • It is the right part

    Rose Mary
    3 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Right part, mechanic happy, problem solved, l'm happy.

    Purchased for: 1995 Toyota Corolla 1994 Ford F150 2005 Ford Escape

    Helpful?

  • The part fit and it’s working.

    David
    3 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    The part was installed into a Ford Fusion. I have no reason to dislike it. It’s working well.

    Purchased for: 2013 Ford Fusion

    Helpful?

  • So far so good

    Jason
    3 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    If it's Duralast it's got to be good.

    Helpful?

  • Thermostat

    Guillermo
    3 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Good product, I’ve install mine about 4 months ago and no problems so far after replacing 4 fail safe thermostats within 7 months until I decided to change the product.

    Purchased for: 2012 Ford Fusion

    Helpful?

  • The product worked well.

    Gina
    4 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    Had very little heat. Works great now.

    Purchased for: 2005 Mercury Sable

    Helpful?

  • You can not fix something that is good to go.

    Benjamn
    4 years ago
    Verified Purchase
    Recommended
    Sweepstakes Entry

    My heat I am toasty warm now.

    Purchased for: 2001 Mercury sabel

    Helpful?