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TH200-4R Output Shaft 54678AA (3rd Design)

Catalog name:
Shaft, 200C Output (3rd Design) 16 Teeth Governor Gear 1979-Up (Uses A Plastic Speed-O Gear) (16 1/4” Long)
Shaft, 200C Output (3rd Design) 16 Teeth Governor Gear 1979-Up (Uses A Plastic Speed-O Gear) (16 1/4” Long) — Part # 54678AA
Part # 54678AA
Type:
Gear, shaft
Transmissions:
TH200, TH200-4R, TH200C
Years:
1979-Up
Size:
16 1/4” Long
Data as of:
2026-10-17

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Cross-reference numbers

NumberSystemStatus
54678AAWIT✓ catalog
8648472OEM✓ catalog
65739DACCO? unverified

Where it fits

DiagramPositionTransmission page
TH200-4R678—
TH200C678—
Other parts in TH200-4R position 678:
  • 54678 Shaft, 200 Output (1st Design) 14 Teeth Governor Gear 1976-77 (Uses A Metal Speed-O Gear)
  • 54678A Shaft, 200 Output (2nd Design) 16 Teeth Governor Gear 1977-78 (Uses A Metal Speed-O Gear) (16 1/4” Long)
  • 54678B Shaft, 200-4R Output (12 1/4” Long)(14 Teeth Governor Gear) 1981-90
Other parts in TH200C position 678:
  • 54678 Shaft, 200 Output (1st Design) 14 Teeth Governor Gear 1976-77 (Uses A Metal Speed-O Gear)
  • 54678A Shaft, 200 Output (2nd Design) 16 Teeth Governor Gear 1977-78 (Uses A Metal Speed-O Gear) (16 1/4” Long)
  • 54678B Shaft, 200-4R Output (12 1/4” Long)(14 Teeth Governor Gear) 1981-90
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