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1991 Ford F-350

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National 4278 Differential Pinion Seal
for 1991 Ford F-350

National 4278 Differential Pinion Seal - 1991 Ford F-350

National
Brand:National
Part Number: 4278
UPC: 724956125289
Weight: 0.17 lbs
Condition:New



On Sale:

$12.82

Availability:
5 in Stock
Warehouse: US-7
Quantity:

Product Information

Description:

Get the National 4278 Differential Pinion Seal for your 1991 Ford F-350. Buy now and secure your purchase online!

National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for todays vehicles.

Features and Benefits:

  • Compatible with wide range of fluids
  • Delivers quality and reliable performance for every type of repair
  • Design type: spring loaded; multi-lip
  • Excellent high temperature capabilities
  • Low swell in hydrocarbon fluids
  • Provides good low temperature capability
  • Temperature range: -40F to 400F / -40C to 204C
  • Temperature range: -40F to 225F; -40C to 107C

Specifications:

Flanged Outside Diameter:
3.400 in.
Flanged Outside Diameter:
86.360 mm
Grade Type:
Premium
Housing Bore:
3.091 in.
Housing Bore:
78.510 mm
Inside Diameter:
1.812 in.
Inside Diameter:
46.020 mm
Material:
Fluoro-Elastomer
Outside Diameter:
3.096 in.
Outside Diameter:
78.640 mm
Part Description:
Oil Seal
Redicoat:
Yes
Series:
4000
Shaft Diameter:
1.812 in.
Shaft Diameter:
46.020 mm
Thickness:
0.485 in.
Thickness:
12.320 mm
Type:
86
Unit of Dimension:
in.
Width:
0.485 in.
Width:
12.320 mm
Chicago Rawhide #:
18024
Chicago Rawhide #:
18062A
Ford #:
1L3W-4676-AB
Ford #:
1L3W-4676-AC
Ford #:
1L3W4674AA
Ford #:
1L3Z-4676-A
Ford #:
1L3Z-4676-B
Ford #:
1L3Z-4676-C
Ford #:
BL3Z-4676-A
Ford #:
E5TW4676BA
Ford #:
E5TZ4676A
Ford #:
E5TZ4676B
Ford #:
E87W4676AA
Ford #:
E8TW4676AA
Ford #:
E8TZ-4676B
Ford #:
ESTW-4676-BA
SKF #:
18024
SKF #:
18062A
Timken #:
4278
Victor Reinz #:
48103
Country of Origin:
MX

National 4278 Differential Pinion Seal compatibility with your 1991 Ford F-350...

Last Updated: 09/06/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes
Ford F-350

5.8L V8 Gas OHV,
7.5L V8 Gas OHV
1
 
Rear Outer
 
with 10.25 (in) Ring Gear
with Ford Axle
 

Ford F-350



5.8L V8 Gas OHV,
7.5L V8 Gas OHV

Rear Outer with 10.25 (in) Ring Gear
with Ford Axle

1 Per Vehicle
Ford F-350

4.9L L6 Gas OHV
1
 
Rear Outer
 
with 10.25 (in) Ring Gear
with Ford Axle
 

Ford F-350



4.9L L6 Gas OHV

Rear Outer with 10.25 (in) Ring Gear
with Ford Axle

1 Per Vehicle

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1994

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 
Ford F-350

7.3L V8 Diesel OHV
1
 
Rear Outer
 
with 10.25 (in) Ring Gear
with Ford Axle
 

Ford F-350



7.3L V8 Diesel OHV

Rear Outer with 10.25 (in) Ring Gear
with Ford Axle

1 Per Vehicle

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