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Pinion, A4AF1 (21 Teeth Gear)(2.430”OD)(No Groove) Bearing On Middle Of Shaft (9 1/2” Long)

Pinion, A4AF1 (21 Teeth Gear)(2.430”OD)(No Groove) Bearing On Middle Of Shaft (9 1/2” Long) — Part # 42730LA
Part # 42730LA
Type:
Bearing, gear, shaft
Transmissions:
A4AF1, A4AF2, A4AF3, A4BF1, A4BF2, F4A22, F4A33-1, F4A33-1 A, KM170, KM170-1, W4A-32, W4A33-1
Size:
21 Teeth Gear; 2.430”OD; 9 1/2” Long
Data as of:
2026-10-17

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Cross-reference numbers

NumberSystemStatus
42730LAWIT✓ catalog

Where it fits

DiagramPositionTransmission page
A4AF1730—
A4AF3730A4AF3
F4A33-1730F4A33-1
KM170730—
Other parts in A4AF1 position 730:
  • 42730B Pinion, KM171 (18 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730C Pinion, KM175 (16 Teeth) With Bearing On End Of Shaft 1985-89
  • 42730D Pinion, KM172 (16 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730E Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EA Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.400” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EB Pinion, KM175-5 (16 Teeth) 1 Groove Next To Bearing (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EC Pinion, KM175-5 (15 Teeth) No Groove (1.500” Thick Gear)
  • 42730ED Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft Next To Bearing)
  • 42730EDA Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft, 2 Next To The Bearing
  • 42730EE Pinion, KM175-5 (16 Teeth) 1 Groove (1 3/8” Thick Gear) 10 1/2” Long (3 Grooves On Shaft)
  • and 23 more
Other parts in A4AF3 position 730:
  • 42730B Pinion, KM171 (18 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730C Pinion, KM175 (16 Teeth) With Bearing On End Of Shaft 1985-89
  • 42730D Pinion, KM172 (16 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730E Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EA Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.400” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EB Pinion, KM175-5 (16 Teeth) 1 Groove Next To Bearing (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EC Pinion, KM175-5 (15 Teeth) No Groove (1.500” Thick Gear)
  • 42730ED Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft Next To Bearing)
  • 42730EDA Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft, 2 Next To The Bearing
  • 42730EE Pinion, KM175-5 (16 Teeth) 1 Groove (1 3/8” Thick Gear) 10 1/2” Long (3 Grooves On Shaft)
  • and 23 more
Other parts in F4A33-1 position 730:
  • 42730B Pinion, KM171 (18 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730C Pinion, KM175 (16 Teeth) With Bearing On End Of Shaft 1985-89
  • 42730D Pinion, KM172 (16 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730E Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EA Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.400” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EB Pinion, KM175-5 (16 Teeth) 1 Groove Next To Bearing (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EC Pinion, KM175-5 (15 Teeth) No Groove (1.500” Thick Gear)
  • 42730ED Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft Next To Bearing)
  • 42730EDA Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft, 2 Next To The Bearing
  • 42730EE Pinion, KM175-5 (16 Teeth) 1 Groove (1 3/8” Thick Gear) 10 1/2” Long (3 Grooves On Shaft)
  • and 23 more
Other parts in KM170 position 730:
  • 42730B Pinion, KM171 (18 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730C Pinion, KM175 (16 Teeth) With Bearing On End Of Shaft 1985-89
  • 42730D Pinion, KM172 (16 Teeth) Governor Type With Bearing On End Of Shaft 1983-88
  • 42730E Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EA Pinion, KM175-5 (16 Teeth) 1 Groove Next To Pilot (1.400” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EB Pinion, KM175-5 (16 Teeth) 1 Groove Next To Bearing (1.170” Thick Gear) Bearing On Middle Of Shaft 1988-Up
  • 42730EC Pinion, KM175-5 (15 Teeth) No Groove (1.500” Thick Gear)
  • 42730ED Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft Next To Bearing)
  • 42730EDA Pinion, KM175-5 (15 Teeth) No Groove (1.432” Thick Gear) 10 1/2” Long (3 Grooves On Shaft, 2 Next To The Bearing
  • 42730EE Pinion, KM175-5 (16 Teeth) 1 Groove (1 3/8” Thick Gear) 10 1/2” Long (3 Grooves On Shaft)
  • and 23 more
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