My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

National Oil Seal 25520 Tapered Bearing Cup Race

(Ford Mustang 1996-2004, 2007-14, Thunderbird 1966-70, Galaxie 500 1966-70, F-100 1964-72, Galaxie 1966-70, LTD 1966-70, F100 Pickup 1964-72 + 261 more models)

Manufacturer

Picture for manufacturer National Oil Seal

Part Number

25520
7 reviews
Sale Price

$10.66

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The National Oil Seal 25520 is a precision-manufactured tapered roller bearing cup (also known as a bearing race) designed for axle and differential applications. This outer race component provides a hardened steel surface for tapered roller bearings to ride on, ensuring smooth rotation and proper load distribution in demanding automotive and heavy-duty applications.

Key Features:

  • Precision-ground tapered bearing cup for exact fit and optimal performance
  • Heat-treated steel construction for durability and wear resistance
  • Designed for use in axle assemblies and differential housings
  • Manufactured to OEM specifications for reliable replacement
  • Compatible with standard tapered roller bearing sets

National Oil Seal (now part of the Federal-Mogul Motorparts family) has been a trusted name in seals and bearing components for decades. This bearing cup is engineered to restore proper bearing function during axle rebuilds, differential overhauls, or when replacing worn bearing components. Proper installation requires pressing the cup into the housing bore to ensure correct seating and bearing preload.

Products specifications

Fits

Ford Mustang 1996-2004, 2007-14, Thunderbird 1966-70, Galaxie 500 1966-70, F-100 1964-72, Galaxie 1966-70, LTD 1966-70, F100 Pickup 1964-72, Custom 1966-70, Custom 500 1966-70, Country Sedan 1966-70, Ranch Wagon 1966-70 + 257 more models

Agricultural Equipment

N

Application Specific

Y

Car Light Truck

N

Engine Specific

N

Heavy Duty Truck

N

High Performance

Y

Industrial Off Highway Equipment

N

Marine

N

Medium Duty Truck

N

Motorcycle ATV

N

Non Vehicle Specific

N

Personal WaterCraft

N

Small Engine

N

SnowMobile

N

Transmission Specific

N

Feature 1

Premium bearing design matches OEM specifications

Feature 3

Crowned raceways and rollers to ensure even load distribution for maximum life

Freight Class

50

Marketing Statement

A full line of premium oil seals and bearings

Part Description

Taper Bearing Cup

Cup Bore (Inch)

3.2650

Cup Bore (MM)

82.9310

Cup Length (MM)

19.0500

Cup Radius (Inch)

0.0300

Cup Radius (MM)

0.7870

Excellent selection, great prices, and fast shipping. I am very satisfied.

FAST, EASY

found what I need at the price I want to pay. there is not a lot of details on what you are buying. I found I had to check with other sites to insure I was buying what I wanted. also postponed buying brakes becuase of this.

Product was as described, shipping was fast, and communication was excellent. Plus I saved $$. Thanks Autoplicity! I'll be a repeat buyer and referral source.

After seeing that Autoplicity was in good standing with the BBB and had favourable reviews reported elsewhere I placed an order on a Sunday evening. On Monday morning I already had a confirmation email and order number. On Tuesday I was notified that my order had shipped. Their price of $477 on the part I ordered was about $30 cheaper than Summit Racing, who I usually do business with, and the cost of shipping and handling was only a few dollars more. I haven't recieved the part yet but have no reason to think I won't be totally satisfied with the transaction.

Best price around, very fast shipping and great service! I will buy from them again!

"Customer service was very helpful, very good prices. On its way the next day."

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy