Thermostat Gasket
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Felpro Thermostat Gasket

Part No. 35666 Warranty Details  

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From the leader in aftermarket engine sealing, FEL-PRO the gaskets professionals trust.

Product Features:
  • Each gasket, set, or seal is built to meet or exceed all original equipment specifications and is validated for fit, form, and function
  • Application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trust
  • FEL-PRO gasket sets are engineered and manufactured specifically for the aftermarket repair environment
  • Every part for the repair procedure is included in the kit unless otherwise noted
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Material:Rubber

REVIEW SNAPSHOT®

by PowerReviews
FelproThermostat Gasket
 
4.5

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (9)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

92%

of respondents would recommend this to a friend.

Pros

  • Easy to install (11)
  • Durable (6)

Cons

No Cons

Best Uses

  • Replacement (9)
  • Everyday driving (7)
    • Reviewer Profile:
    • Mechanic (5), Auto enthusiast (4), Casual driver (3), Truck enthusiast (3)

Most Liked Positive Review

 

works

soft and flexable

replace any time thermostat housing is removed as gaskets will be hard as a rock and brittle after use

my thermostat housing also required a paper gasket...Read complete review

soft and flexable

replace any time thermostat housing is removed as gaskets will be hard as a rock and brittle after use

my thermostat housing also required a paper gasket to seal the housing to manifold

VS

Most Liked Negative Review

 

NO DIRECTIONS

This gasket is tapered . It fits around the thermostat but there are no direction as to which way the taper goes. Towards the engine or towards the thermostat housing. I put it in...Read complete review

This gasket is tapered . It fits around the thermostat but there are no direction as to which way the taper goes. Towards the engine or towards the thermostat housing. I put it in with the taper going towards the engine . So far no leaks or cooling system problems. Think they could have put in a diagram or instruction on the packaging.

Reviewed by 13 customers

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Displaying reviews 1-10

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(2 of 5 customers found this review helpful)

 
4.0

Does the job

By 

from Tama, IA

About Me Mechanic

Level 1

Pros

  • Easy To Install

Cons

  • Which Way Is Up

Best Uses

    Comments about Felpro Thermostat Gasket:

    2005 Impala 3.8
    Works although I wasn't sure which way was up. Found out the next day I also needed a gasket on the thermostat housing. Could have been an install issue (which way is up) but just threw a gasket on the housing to be safe.

    Comment on this review(earn points)

    (3 of 6 customers found this review helpful)

     
    5.0

    I would buy this product again

    By 

    from Butler, PA

    About Me Casual Driver

    Verified Buyer
    Level 2

    Pros

    • Durable
    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power
    • Lightweight

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Felpro Thermostat Gasket:

      Should be changed when installing thermostate

      Comment on this review(earn points)

      (3 of 6 customers found this review helpful)

       
      5.0

      Simple to install

      By 

      from Northern NJ

      About Me Casual Driver

      Verified Buyer
      Level 2

      Pros

      • Easy To Install

      Cons

        Best Uses

        • Replacement

        Comments about Felpro Thermostat Gasket:

        Not much to say, needed the gasket as the thermostat I purchased did not come with one

        Comment on this review(earn points)

        (5 of 10 customers found this review helpful)

         
        1.0

        NO DIRECTIONS

        By 

        from Crystal River FL

        About Me Auto Enthusiast

        Ask me a question

        Verified Buyer
        Level 3

        Pros

          Cons

          • Difficult To Install

          Best Uses

            Comments about Felpro Thermostat Gasket:

            This gasket is tapered . It fits around the thermostat but there are no direction as to which way the taper goes. Towards the engine or towards the thermostat housing. I put it in with the taper going towards the engine . So far no leaks or cooling system problems. Think they could have put in a diagram or instruction on the packaging.

            Comment on this review(earn points)

            (3 of 6 customers found this review helpful)

             
            5.0

            Works Very Well

            By 

            from Pennsylvainia

            Verified Buyer
            Level 2

            Pros

            • Durable
            • Easy To Install

            Cons

              Best Uses

              • Replacement

              Comments about Felpro Thermostat Gasket:

              This is a "premium" seal. Just remember to clean the mating housing surfaces well and to apply a very thin layer of light grease or oil to the seal before inserting into the housing.

              Comment on this review(earn points)

              (9 of 16 customers found this review helpful)

               
              5.0

              O,RING SEAL GASKET

              By 

              from mooresville nc

              About Me Mechanic

              Verified Buyer
              Level 2

              Pros

              • Durable
              • Easy To Install

              Cons

                Best Uses

                • Everyday Driving
                • Replacement

                Comments about Felpro Thermostat Gasket:

                seal was exactly like OEM

                Comment on this review(earn points)

                (10 of 18 customers found this review helpful)

                 
                5.0

                works

                By 

                from mo

                About Me Auto Enthusiast, Mechanic, Truck Enthusiast

                Ask me a question

                Verified Buyer
                Level 5

                Pros

                • Easy To Install

                Cons

                  Best Uses

                  • Replacement

                  Comments about Felpro Thermostat Gasket:

                  soft and flexable

                  replace any time thermostat housing is removed as gaskets will be hard as a rock and brittle after use

                  my thermostat housing also required a paper gasket to seal the housing to manifold

                  Comment on this review(earn points)

                  (10 of 19 customers found this review helpful)

                   
                  5.0

                  exact replacement

                  By 

                  from iowa

                  About Me Auto Enthusiast, Casual Driver, Mechanic

                  Level 3

                  Pros

                  • Durable
                  • Easy To Install

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Performance Driving
                    • Replacement

                    Comments about Felpro Thermostat Gasket:

                    Gasket was exact replacement for my pontiac, installed no problem and no leaks!

                    Comment on this review(earn points)

                    (9 of 16 customers found this review helpful)

                     
                    5.0

                    always remember to replace your gaskets

                    By 

                    from Rockville, Indiana

                    About Me Auto Enthusiast, Truck Enthusiast

                    Verified Buyer
                    Level 2

                    Pros

                    • Easy To Install

                    Cons

                      Best Uses

                      • Everyday Driving

                      Comments about Felpro Thermostat Gasket:

                      good price, worked as it was supposed to.

                      Comment on this review(earn points)

                      (9 of 18 customers found this review helpful)

                       
                      5.0

                      Good Product

                      By 

                      from North Mississippi

                      About Me Mechanic, Truck Enthusiast

                      Verified Buyer
                      Level 2

                      Pros

                      • Durable
                      • Easy To Install

                      Cons

                        Best Uses

                        • Replacement

                        Comments about Felpro Thermostat Gasket:

                        Fit very well and seems to be a quality product.

                        Comment on this review(earn points)

                        Displaying reviews 1-10

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                        Do you have questions about this product?(earn points for answers!)

                         

                        Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                        1 Question | 1 Answer
                        Displaying question 1
                        • Q:

                          This gasket is advertised as being an improved design, and I noticed that it is tapered on one side. Is it designed for the tapered side go into the intake, or into the thermostat housing?
                          Asked on 12/12/2010 by Anonymous from Wyandotte, Michigan

                          1 answer

                          • CUSTOMER CARE

                            A:

                            For further assistance, please provide the year, make, model and engine size of your vehicle.

                            Answered on 12/23/2010 by Mike the Auto Parts Master from AAP
                        Displaying question 1

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