Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009

National 2520 Manual Trans Countershaft Race

National

 
Brand:National
Part Number: 2520
UPC: 724956080755
Weight: 0.3 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the National 2520 Manual Trans Countershaft Race for your vehicle. Buy now and secure your purchase online!

Manufactured with premium-grade steel, National taper bearing cups feature crowned raceways to ensure even load distribution.

National Oil Seals & Bearings offer a full line of premium oil seals and bearings.

Features and Benefits:

  • COMPREHENSIVE COVERAGE -- Industry-leading coverage for domestic and import applications
  • Crowned raceways and rollers to ensure even load distribution for maximum life
  • Industry leading coverage
  • OE-STYLE DESIGN -- Engineered to meet OE specifications
  • PREMIUM MATERIALS -- Precision manufactured using premium-grade steel for outstanding durability and performance
  • Precision manufactured using premium-grade steel for outstanding durability and performance
  • Premium bearing design matches OEM specifications
  • Professional technicians know they can depend on National
  • RIGOROUS TESTING--Comprehensivetesting throughout design and development processes by National engineers for quality you can count on
  • SMOOTH ROTATION -- Crowned raceways for even load distribution

Specifications:

Cup Radius (Inch):
0.1300 in.
Cup Radius (MM):
3.3020 mm
Grade Type:
Premium
Outside Diameter:
2.6150 in.
Outside Diameter:
66.4210 mm
Part Description:
Taper Bearing Cup
Width:
0.8125 in.
Width:
20.6380 mm
Allis Chalmers #:
00937105
Allis Chalmers #:
AX82422
Chicago Rawhide #:
BR2520
Ford #:
E7TZ-7065A
John Deere #:
149053
John Deere #:
JD7433
SKF #:
2520
SKF #:
BR2520
Timken #:
2520
ZF #:
0769 170 314
Country of Origin:
ES

Select a vehicle to narrow National 2520 Manual Trans Countershaft Race fitment info!

Last Updated: 09/06/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes
Chevrolet Silverado 2500 HD

6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Chevrolet Silverado 2500 HD



6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Chevrolet Silverado 2500 HD



6.0L V8 CNG OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650/ML6
 

Chevrolet Silverado 2500 HD



6.0L V8 Bi-Fuel OHV,
6.0L V8 CNG OHV 6 Speed
Manual Transmission
Mfr Code: S6-650/ML6

2 Per Vehicle
Chevrolet Silverado 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650/ML6
 

Chevrolet Silverado 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650/ML6

2 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 CNG OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Chevrolet Silverado 3500



6.0L V8 CNG OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Chevrolet Silverado 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650/ML6
 

Chevrolet Silverado 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650/ML6

2 Per Vehicle
Ford E-350 Econoline

4.9L L6 Gas OHV,
5.8L V8 Gas OHV,
7.3L V8 Diesel OHV,
7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford E-350 Econoline



4.9L L6 Gas OHV,
5.8L V8 Gas OHV,
7.3L V8 Diesel OHV,
7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F Super Duty

7.3L V8 Diesel OHV Turbo,
7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F Super Duty



7.3L V8 Diesel OHV Turbo,
7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F Super Duty

7.3L V8 Diesel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F Super Duty



7.3L V8 Diesel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F Super Duty

7.3L V8 Diesel OHV,
7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F Super Duty



7.3L V8 Diesel OHV,
7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-150

4.9L L6 Bi-Fuel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-150



4.9L L6 Bi-Fuel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-150

4.9L L6 Gas OHV,
5.0L V8 Gas OHV,
5.8L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-150



4.9L L6 Gas OHV,
5.0L V8 Gas OHV,
5.8L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-250

5.4L V8 Bi-Fuel SOHC
2
 
with ZF S5-47 Transmission
5 Speed
Manual Transmission
 

Ford F-250



5.4L V8 Bi-Fuel SOHC with ZF S5-47 Transmission
5 Speed
Manual Transmission

2 Per Vehicle
Ford F-250

4.6L V8 Gas SOHC,
5.4L V8 CNG SOHC,
5.4L V8 Gas SOHC
2
 
with ZF S5-47 Transmission
5 Speed
Manual Transmission
 

Ford F-250



4.6L V8 Gas SOHC,
5.4L V8 CNG SOHC,
5.4L V8 Gas SOHC with ZF S5-47 Transmission
5 Speed
Manual Transmission

2 Per Vehicle
Ford F-250

4.9L L6 Bi-Fuel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-250



4.9L L6 Bi-Fuel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-250

7.3L V8 Diesel OHV Turbo
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-250



7.3L V8 Diesel OHV Turbo 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-250

4.9L L6 Gas OHV,
5.0L V8 Gas OHV,
5.8L V8 Gas OHV,
7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-250



4.9L L6 Gas OHV,
5.0L V8 Gas OHV,
5.8L V8 Gas OHV,
7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-250

7.3L V8 Diesel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-250



7.3L V8 Diesel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-250

6.9L V8 Diesel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-250



6.9L V8 Diesel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-250 HD

5.8L V8 Gas OHV,
7.3L V8 Diesel OHV Turbo,
7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-47
 

Ford F-250 HD



5.8L V8 Gas OHV,
7.3L V8 Diesel OHV Turbo,
7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-47

2 Per Vehicle
Ford F-250 Super Duty

6.4L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-250 Super Duty



6.4L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-250 Super Duty

5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-250 Super Duty



5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-250 Super Duty

6.0L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-250 Super Duty



6.0L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-250 Super Duty

7.3L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-250 Super Duty



7.3L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-250 Super Duty

5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo
2
 
5 Speed
Manual Transmission
Mfr Code: S5-47
 

Ford F-250 Super Duty



5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo 5 Speed
Manual Transmission
Mfr Code: S5-47

2 Per Vehicle
Ford F-350

5.8L V8 Gas OHV,
7.3L V8 Diesel OHV Turbo,
7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-47
 

Ford F-350



5.8L V8 Gas OHV,
7.3L V8 Diesel OHV Turbo,
7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-47

2 Per Vehicle
Ford F-350

7.3L V8 Diesel OHV Turbo
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-350



7.3L V8 Diesel OHV Turbo 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-350

4.9L L6 Gas OHV,
5.8L V8 Gas OHV,
7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-350



4.9L L6 Gas OHV,
5.8L V8 Gas OHV,
7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-350

7.3L V8 Diesel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-350



7.3L V8 Diesel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-350

6.9L V8 Diesel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F-350



6.9L V8 Diesel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F-350 Super Duty

6.4L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-350 Super Duty



6.4L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-350 Super Duty

5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-350 Super Duty



5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-350 Super Duty

6.0L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-350 Super Duty



6.0L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-350 Super Duty

7.3L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-350 Super Duty



7.3L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-350 Super Duty

5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo
2
 
5 Speed
Manual Transmission
Mfr Code: S5-47
 

Ford F-350 Super Duty



5.4L V8 Gas SOHC,
6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo 5 Speed
Manual Transmission
Mfr Code: S5-47

2 Per Vehicle
Ford F-450 Super Duty

6.4L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-450 Super Duty



6.4L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-450 Super Duty

6.8L V10 Gas SOHC
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-450 Super Duty



6.8L V10 Gas SOHC 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-450 Super Duty

6.0L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-450 Super Duty



6.0L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-450 Super Duty

6L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-450 Super Duty



6L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-450 Super Duty

7.3L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-450 Super Duty



7.3L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-450 Super Duty

6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo
2
 
5 Speed
Manual Transmission
Mfr Code: S5-47
 

Ford F-450 Super Duty



6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo 5 Speed
Manual Transmission
Mfr Code: S5-47

2 Per Vehicle
Ford F-550 Super Duty

6.4L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-550 Super Duty



6.4L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-550 Super Duty

6.8L V10 Gas SOHC
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-550 Super Duty



6.8L V10 Gas SOHC 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-550 Super Duty

6.0L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-550 Super Duty



6.0L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-550 Super Duty

6L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-550 Super Duty



6L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-550 Super Duty

7.3L V8 Diesel OHV Turbo
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

Ford F-550 Super Duty



7.3L V8 Diesel OHV Turbo 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
Ford F-550 Super Duty

6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo
2
 
5 Speed
Manual Transmission
Mfr Code: S5-47
 

Ford F-550 Super Duty



6.8L V10 Gas SOHC,
7.3L V8 Diesel OHV Turbo 5 Speed
Manual Transmission
Mfr Code: S5-47

2 Per Vehicle
Ford F53

7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-47
 

Ford F53



7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-47

2 Per Vehicle
Ford F53

7.5L V8 Gas OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F53



7.5L V8 Gas OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F59

7.3L V8 Diesel OHV,
7.3L V8 Diesel OHV Turbo
2
 
with ZF S5-47 Transmission
5 Speed
Manual Transmission
 

Ford F59



7.3L V8 Diesel OHV,
7.3L V8 Diesel OHV Turbo with ZF S5-47 Transmission
5 Speed
Manual Transmission

2 Per Vehicle
Ford F59

7.3L V8 Diesel OHV Turbo
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F59



7.3L V8 Diesel OHV Turbo 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
Ford F59

7.3L V8 Diesel OHV
2
 
5 Speed
Manual Transmission
Mfr Code: S5-42
 

Ford F59



7.3L V8 Diesel OHV 5 Speed
Manual Transmission
Mfr Code: S5-42

2 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 CNG OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650/ML6
 

GMC Sierra 2500 HD



6.0L V8 CNG OHV 6 Speed
Manual Transmission
Mfr Code: S6-650/ML6

2 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650/ML6
 

GMC Sierra 2500 HD



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650/ML6

2 Per Vehicle
GMC Sierra 2500 HD

6.0L V8 Bi-Fuel OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650/ML6
 

GMC Sierra 2500 HD



6.0L V8 Bi-Fuel OHV 6 Speed
Manual Transmission
Mfr Code: S6-650/ML6

2 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
GMC Sierra 3500

6.0L V8 CNG OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650
 

GMC Sierra 3500



6.0L V8 CNG OHV 6 Speed
Manual Transmission
Mfr Code: S6-650

2 Per Vehicle
GMC Sierra 3500

6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV
2
 
6 Speed
Manual Transmission
Mfr Code: S6-650/ML6
 

GMC Sierra 3500



6.0L V8 Gas OHV,
6.6L V8 Diesel OHV Turbo,
8.1L V8 Gas OHV 6 Speed
Manual Transmission
Mfr Code: S6-650/ML6

2 Per Vehicle