Oil Seal
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National Oil Seal

Part No. 4278 Warranty Details  

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Designed to provide enhanced endurance and maximum contamination exclusion while ensuring proper fit, form and function.
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Lip Material:Fluoroelastomers
Material:Fluoroelastomers

REVIEW SNAPSHOT®

by PowerReviews
NationalOil Seal
 
2.3

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (1)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

33%

of respondents would recommend this to a friend.

Reviewed by 3 customers

Displaying reviews 1-3

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1.0

Total junk

By 

from Harrisburg, pa

Comments about National Oil Seal:

Do not buy this product. Seal leaked within six month of the install.

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(1 of 3 customers found this review helpful)

 
5.0

Good product for the price.

By 

from Bluffton, SC

About Me Truck Enthusiast

Verified Buyer

Pros

  • Durable
  • Easy To Install

Cons

    Best Uses

      Comments about National Oil Seal:

      Installed on my 1989 f250 in a few minutes, doesn't take a genius to figure out. It's the only thing on my truck that isn't leaking. Works great.

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      (1 of 3 customers found this review helpful)

       
      1.0

      dont waste your time or money

      By 

      from houston,tx

      See all my reviews

      Verified Buyer

      Pros

      • None

      Cons

      • Leaked

      Best Uses

      • NONE

      Comments about National Oil Seal:

      Listed as replacement on 2004 f-150 but leaked right away the next time I drove. The more expensive seal does not leak. Poor design. If you look at the more expensive seal you can see the difference.

      • Car & Truck:
      • Back yard mechanic, Casual Driver, Truck Enthusiast

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      Displaying reviews 1-3

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      Do you have questions about this product?

       

      Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

      1 Question | 2 Answers
      Displaying question 1
      • Q:

        It does not really specify what this is other than an oil seal? It this a rear hub seal? A cross reference number would be nice.
        Asked on 11/13/2010 by Anonymous

        2 answers

        • A:

          its listed as outer axle seal....it is NOT. i believe its the pinion seal. back to the parts store. fml

          Answered on 6/12/2016 by tk from omaha ne
        • CUSTOMER CARE

          A:

          This is the Differential Pinion Seal.

          Answered on 11/16/2010 by Ron the Auto Parts Rebel from AAP
      Displaying question 1

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      Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.