Oil Seal
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National Oil Seal

Part No. 8660S Warranty  

See if this part fits a specific vehicle.

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Designed to provide enhanced endurance and maximum contamination exclusion while ensuring proper fit, form and function.
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Bore/Inside Diameter:2.292
Lip Material:Nitrile
Outer Diameter:2.296
Shaft Size:1.399
Width:0.46

REVIEW SNAPSHOT®

by PowerReviews
NationalOil Seal
 
4.3

(based on 4 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Durable (3)

Cons

    Best Uses

        • Reviewer Profile:
        • Auto enthusiast (3)
        • Was this a gift?:
        • No (4)

      Reviewed by 4 customers

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      Displaying reviews 1-4

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      (16 of 34 customers found this review helpful)

       
      3.0

      easy to instal

      By garland the fixit man

      from Honaker va

      About Me Mechanic

      Verified Buyer
      Level 2

      Pros

      • Durable

      Cons

      • None

      Best Uses

      • Trucks

      Comments about National Oil Seal:

      easy to install

      • Was this a gift?:
      • No

      Comment on this review(earn points)

      (18 of 33 customers found this review helpful)

       
      5.0

      Great product!

      By Niterider

      from M-town ia

      About Me Auto Enthusiast, Competitive Driver, Truck Enthusiast

      Ask me a question

      Verified Buyer
      Level 3

      Pros

      • Durable
      • Easy To Use
      • High-Performance
      • Versatile

      Cons

      • None

      Best Uses

      • All Of The Above More
      • Large Cars
      • Small Cars
      • Trucks

      Comments about National Oil Seal:

      Doesn't get any better!

      • Was this a gift?:
      • No

      Comment on this review(earn points)

      (15 of 32 customers found this review helpful)

       
      5.0

      Correct Part

      By Jim

      from SC

      About Me Auto Enthusiast

      Verified Buyer
      Level 3

      Pros

        Cons

          Best Uses

            Comments about National Oil Seal:

            Rebuilding 8.8 Mustang rearend

            • Was this a gift?:
            • No

            Comment on this review(earn points)

            (21 of 36 customers found this review helpful)

             
            4.0

            No leaky rear axle here

            By redi8752

            from Holly, Mi

            About Me Auto Enthusiast, Casual Driver

            Verified Buyer
            3 or more reviews submitted

            Pros

            • Direct replacement
            • Durable
            • Easy To Use
            • Exact fit

            Cons

              Best Uses

              • Axle Seal

              Comments about National Oil Seal:

              The most time consuming part was pulling the old seal out of the rear axle of my 2000 Crown Vic (make sure you have a slide hammer with the axle bearing puller attachment). Once the old one was out the new one popped right back in.

              It seals well. I haven't had any problems yet at 5,000 miles.

              • Was this a gift?:
              • No

              Comment on this review(earn points)

              Displaying reviews 1-4

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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.

              8 Questions | 8 Answers
              Displaying questions 1-8
              • Q:

                are these seals sold as a pair ?
                Asked on 6/28/2013 by bakyrd mcanic

                1 answer

                • CUSTOMER CARE

                  A:

                  No, I am sorry. The National Oil Seal - Part No. 8660S is sold individually. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                  Answered on 6/29/2013 by John the Car-Doc from AAP
              • Q:

                where does this part go on a 97 j.g.cherokee 4.0 ?
                Asked on 5/5/2013 by ztereoz from miami

                1 answer

                • CUSTOMER CARE

                  A:

                  This National Oil Seal (Part No. 8660S) is an exact fit for your 1997 Jeep Grand Cherokee 4.0 and you can view this Oil Seal by removing rear main Bearing Cap. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                  Answered on 5/5/2013 by Max from AAP
              • Q:

                would this be a fit for a rear (outer) axle seal (wheel sleeve) whatever you want to call it for a 1998 pontiac trans am. it looks the part from the photo.
                Asked on 9/25/2012 by 45KALiber

                1 answer

                • CUSTOMER CARE

                  A:

                  This National Oil Seal (Part# 8660S) is a rear (inner or outer) wheel seal and it is an exact fit for your 1998 Pontiac Trans Am. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                  Answered on 9/25/2012 by Rick from AAP
              • Q:

                Will this work for the front differential pinion on a 1999 Jeep Cherokee sport?
                Asked on 6/13/2012 by foxhardy from Sturgis, MI

                1 answer

                • CUSTOMER CARE

                  A:

                  Sorry, this National Oil Seal (Part# 8660S) fits only for rear wheel. For further assistance please call us at 1-877-ADVANCE (238-2623) and we would be more than happy to assist you.

                  Answered on 6/17/2012 by Dennis from AAP
              • Q:

                I have a 2003 chevy s10 2.2 RWD. It's leaking into the right rear drum. Mechanic said I need a new axle seal and that he would have to open rear diff. Is this the new seal I need?
                Asked on 3/26/2012 by rlkodi

                1 answer

                • CUSTOMER CARE

                  A:

                  Yes, this National Oil Seal with part# 8660S is for the axle and this Oil Seal fits your 2003 Chevrolet S10.

                  Answered on 3/27/2012 by Vincent from AAP
              • Q:

                is this the axle seal for a 92 mustang 5.0 with a 8.8 rear end?
                there is not alot of info on this. thank you
                Asked on 11/7/2011 by fast fox from south florida

                1 answer

                • CUSTOMER CARE

                  A:

                  Yes, this part fits your 1992 Ford Mustang.

                  Answered on 11/7/2011 by Steve from AAP
              • Q:

                I have a 2000 Ford Mustang base model. I recently noticed the right rear side of the axle leaking oil where the axle meets the rear differential. It has not been leaking like alot or anything but the axle does squeek now if I hit bumps. I believe this seal is what I need, but Im not sure. Also, I heard it is a good idea to change the axle seal bearing as well. Can you let me know what axle seal and bearing I need for my car? and if this is all I need to fix the problem? Thank you
                Asked on 9/5/2010 by Bryan from East Stroudsburg, PA

                1 answer

                • CUSTOMER CARE

                  A:

                  It does sound like the seal is bad. This is the seal you would need. The axle bearing is inside of the differential. Is that the bearing that you are wanting to replace?

                  Answered on 11/2/2010 by Mike the Auto Parts Master from AAP
              • Q:

                is this the seal that goes where the driveshaft yoke goes into the rear end? or is it called the spindle?
                Asked on 8/18/2010 by old mech.

                1 answer

                • CUSTOMER CARE

                  A:

                  This does appear to be the type of seal that goes where the driveshaft yoke goes into the rear end, but to be sure, please provide the year, make, model and engine size of your vehicle.

                  Answered on 8/19/2010 by Mike from AAP
              Displaying questions 1-8

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