Shop By Product Matching "National"

Choose your Engine for your 1981 Chevrolet K30


Showing 1 - 10 of 29 products
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National Bearing
  • Differential Pinion Seal
  • with 10.5 (in) Ring Gear with GMC Axle
  • National 2286 Differential Pinion Seal
  • Product Attributes:
    • Shaft (Inch): 2.201
    • Width (Inch): 0.590
    • Redicoat: Yes
    • Flanged Outside Diameter (Inch): 3.970
    • Inside Diameter:
      • 2.201
      • 55.910
    • Flanged Outside Diameter (MM): 100.838
    • Unit of Dimension: Inch
    • Housing Bore (Inch): 3.519
    • Outside Diameter:
      • 3.523
      • 89.480
    • Outside Diameter (Inch): 3.523
    • Shaft (MM): 55.910
    • Part Description: Oil Seal
  • 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 today’s vehicles.

This Part Fits the Following OEM/Substitute Numbers:
12305328, 21955, 2286, 26004811, 292-128, 3977359, 4321955, 47530, N21955, YMS2286

Additional Fitment Information:
Vehicle Position
1981 - Chevrolet K30 Rear Outer

National Bearing
  • Taper Bearing Set
  • Taper Bearing Set Includes Cup and Cone
  • National A-38 Taper Bearing Set
  • Product Attributes:
    • Cone Radius (MM): 3.5560
    • Width (Inch): 0.8500
    • Cone Length (Inch): 0.8750
    • Cone Bore (MM): 50.8000
    • Cone Length (MM): 25.9080
    • Cup Radius (MM): 1.2700
    • Standout (MM): 0.5080
    • Taper Bearing Cone: Lm104949
    • Cone Bore (Inch): 2.0000
    • Cone Radius (Inch): 0.1400
    • Cup Length (Inch): 0.6500
    • Cup Bore (Inch): 3.2500
    • Standout (Inch): 0.0200
    • Taper Bearing Cup: Lm104911
    • Cup Radius (Inch): 0.0500
    • Cup Bore (MM): 82.5500
    • Part Description: Taper Bearing Set
  • Manufactured with premium-grade steel, National® taper bearing sets feature crowned raceways and rollers to ensure even load distribution.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Position
1981 - Chevrolet K30 Front Outer

National Bearing
  • Taper Bearing Set
  • Taper Bearing Set Includes Cup and Cone
  • National A-38 Taper Bearing Set
  • Product Attributes:
    • Cone Radius (MM): 3.5560
    • Width (Inch): 0.8500
    • Cone Length (Inch): 0.8750
    • Cone Bore (MM): 50.8000
    • Cone Length (MM): 25.9080
    • Cup Radius (MM): 1.2700
    • Standout (MM): 0.5080
    • Taper Bearing Cone: Lm104949
    • Cone Bore (Inch): 2.0000
    • Cone Radius (Inch): 0.1400
    • Cup Length (Inch): 0.6500
    • Cup Bore (Inch): 3.2500
    • Standout (Inch): 0.0200
    • Taper Bearing Cup: Lm104911
    • Cup Radius (Inch): 0.0500
    • Cup Bore (MM): 82.5500
    • Part Description: Taper Bearing Set
  • Manufactured with premium-grade steel, National® taper bearing sets feature crowned raceways and rollers to ensure even load distribution.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
02955374, 2852729, 2955374, 364464C91, 431669C91, 46AX90, 7451812, 9428908, A-38, A38, BR38, FS38, NO38SET, S38, S87, S87A, SET38

Additional Fitment Information:
Vehicle Position
1981 - Chevrolet K30 Rear Outer

National Bearing
  • Taper Bearing Cone
  • National 387AS Taper Bearing Cone
  • Product Attributes:
    • Cone Bore (Inch): 2.2500
    • Cone Radius (Inch): 0.2030
    • Cone Radius (MM): 5.1560
    • Cone Length (Inch): 0.8640
    • Cone Bore (MM): 57.1500
    • Cone Length (MM): 21.9460
    • Part Description: Taper Bearing Cone
  • Manufactured with premium-grade steel, National® taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
0218285, 02182855, 10X15157, 181-267, 206087M1, 218285, 319014, 327195R91, 387-AS, 387AS, 49030, 49X50209A, 565906, 613862C91, 70218285, 826926C91, 9436882, 9500172...VIEW MORE

Additional Fitment Information:
Vehicle Position
1981 - Chevrolet K30 Rear Inner

National Bearing
  • Taper Bearing Cone
  • National 387AS Taper Bearing Cone
  • Product Attributes:
    • Cone Bore (Inch): 2.2500
    • Cone Radius (Inch): 0.2030
    • Cone Radius (MM): 5.1560
    • Cone Length (Inch): 0.8640
    • Cone Bore (MM): 57.1500
    • Cone Length (MM): 21.9460
    • Part Description: Taper Bearing Cone
  • Manufactured with premium-grade steel, National® taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Position
1981 - Chevrolet K30 Front Inner

National Bearing
  • Taper Bearing Cone
  • with 10.5 (in) Ring Gear with GMC Axle
  • National 387AS Taper Bearing Cone
  • Product Attributes:
    • Cone Bore (Inch): 2.2500
    • Cone Radius (Inch): 0.2030
    • Cone Radius (MM): 5.1560
    • Cone Length (Inch): 0.8640
    • Cone Bore (MM): 57.1500
    • Cone Length (MM): 21.9460
    • Part Description: Taper Bearing Cone
  • Manufactured with premium-grade steel, National® taper bearing cones feature crowned raceways and rollers to ensure even load distribution.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

Additional Fitment Information:
Vehicle Position
1981 - Chevrolet K30 Rear

National Bearing
  • Oil Seal
  • National 9449 Oil Seal
  • Product Attributes:
    • Shaft (Inch): 1.887
    • Sealing Material: Nitrile
    • Width (Inch): 0.582
    • Redicoat: Yes
    • Inside Diameter:
      • 1.887
      • 47.930
    • Helix Type: Counter-clockwise-spiral Lip Design
    • Unit of Dimension: Inch
    • Housing Bore (Inch): 2.700
    • Outside Diameter:
      • 2.704
      • 68.680
    • Outside Diameter (Inch): 2.704
    • Shaft (MM): 47.930
    • Part Description: Oil Seal
  • 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 today’s vehicles.

This Part Fits the Following OEM/Substitute Numbers:
011619, 12303603, 18992, 19015A, 245A15808.25, 293-70, 46433, 65501S, 8623743, 8625757, 8625893, 8626009, 8655031, 8675730, 9449, A65501S, A86227S, B29031...VIEW MORE

Additional Fitment Information:
Vehicle Transmission Trans. Speed Transmission Manuf. Code
1981 - Chevrolet K30 Automatic 3 THM400

National Bearing
  • Oil Seal
  • National 8792S Oil Seal
  • Product Attributes:
    • Inside Diameter:
      • 0.500
      • 12.700
    • Shaft (Inch): 0.500
    • Sealing Material: Nitrile
    • Width (Inch): 0.192
    • Unit of Dimension: Inch
    • Housing Bore (Inch): 0.751
    • Outside Diameter:
      • 0.756
      • 19.200
    • Outside Diameter (Inch): 0.756
    • Shaft (MM): 12.700
    • Part Description: Oil Seal
  • 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 today’s vehicles.

This Part Fits the Following OEM/Substitute Numbers:
011633, 12304285, 2398409, 24-10-1-218-852, 24-50-1-423-606, 24101218852, 293-65, 47399, 480050, 8623056, 8657163, 8792S, 96040528, A65502S, AH10888, B29915, B37248, N4912...VIEW MORE

Additional Fitment Information:
Vehicle Transmission Trans. Speed Transmission Manuf. Code
1981 - Chevrolet K30 Automatic 3 THM350

National Bearing
  • Wheel Seal
  • National 2081 Wheel Seal
  • Product Attributes:
    • Inside Diameter:
      • 2.843
      • 72.210
    • Shaft (Inch): 2.843
    • Helix Type: Bi-directional Lip Design
    • Width (Inch): 0.495
    • Unit of Dimension: Inch
    • Housing Bore (Inch): 3.939
    • Outside Diameter:
      • 100.180
      • 3.944
    • Outside Diameter (Inch): 3.944
    • Redicoat: Yes
    • Shaft (MM): 72.210
    • Part Description: Oil Seal
  • 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 today’s vehicles.
  • Suggested Purchase Quantity: 2
    • Most jobs typically require 2 of this item.

This Part Fits the Following OEM/Substitute Numbers:
12304277, 15527652, 2081, 2620286, 28425, 28426, 28446, 291-12, 3680994, 3686563, 37222, 3742583, 3743202, 3828916, 3883386, 390-9063, 392-9063, 3974847...VIEW MORE

Additional Fitment Information:
Vehicle Position
1981 - Chevrolet K30 Rear Inner

National Bearing
  • Crankshaft Seal
  • National 3945 Crankshaft Seal
  • Product Attributes:
    • Inside Diameter:
      • 2.330
      • 59.180
    • Shaft (Inch): 2.330
    • Helix Type: Bi-directional Lip Design
    • Width (Inch): 0.400
    • Unit of Dimension: Inch
    • Housing Bore (Inch): 3.000
    • Outside Diameter:
      • 3.005
      • 76.330
    • Outside Diameter (Inch): 3.005
    • Redicoat: Yes
    • Shaft (MM): 59.180
    • Part Description: Oil Seal
  • 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 today’s vehicles.

This Part Fits the Following OEM/Substitute Numbers:
03860095, 05742152, 05743285, 0704-D104, 10191640, 10191642, 12303932, 23300, 23500286, 29533, 296-01, 296-25, 30022106.5, 300221X06.5, 300221X06.5C, 332271N, 3860095, 3945...VIEW MORE

Additional Fitment Information:
Vehicle Block CC Position Engine CID
1981 - Chevrolet K30 V - Front 8 Cyl 7.4L 454
Showing 1 - 10 of 29 products

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