Thermostat Gasket
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Felpro Thermostat Gasket

Part No. 35666 Warranty  

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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

    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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    (0 of 1 customers found this review helpful)

     
    4.0

    Does the job

    By Native Mechanic

    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)

      (1 of 2 customers found this review helpful)

       
      5.0

      I would buy this product again

      By DB

      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)

        (1 of 2 customers found this review helpful)

         
        5.0

        Simple to install

        By Frank the Accountant

        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)

          (3 of 6 customers found this review helpful)

           
          1.0

          NO DIRECTIONS

          By Hate GM

          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)

              (1 of 2 customers found this review helpful)

               
              5.0

              Works Very Well

              By Stuck in Penna

              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)

                (7 of 13 customers found this review helpful)

                 
                5.0

                O,RING SEAL GASKET

                By spaine

                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)

                  (8 of 14 customers found this review helpful)

                   
                  5.0

                  works

                  By shopteacher

                  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)

                    (8 of 15 customers found this review helpful)

                     
                    5.0

                    exact replacement

                    By automan

                    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)

                      (7 of 13 customers found this review helpful)

                       
                      5.0

                      always remember to replace your gaskets

                      By W.D.

                      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)

                        (7 of 14 customers found this review helpful)

                         
                        5.0

                        Good Product

                        By Chris

                        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)

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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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