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Ring, A904/A500 Accumulator Piston (Small) (Metal) 1987-Up

Ring, A904/A500 Accumulator Piston (Small) (Metal) 1987-Up — Part # 12191A
Part # 12191A
Type:
Accumulator, piston, ring
Transmissions:
30RH, 32RH, 40RH, 42RE, 42RH, 44RE, A998
Years:
1987-Up
Data as of:
2026-10-17

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Cross-reference numbers

NumberSystemStatus
3743010OEM✓✓ confirmed by 2 sources
12191AWIT✓ catalog
027122Alto? unverified

Where it fits

DiagramPositionTransmission page
30RH191—
42RE19142RE
Other parts in 30RH position 191:
  • 12191 Ring, A904 Accumulator Piston (Small) (1.062”OD) 1960-86 (Use 12177A)
  • 12191C Ring, A500 3-4 Accumulator Piston (Small, In Valve Body) 1989-Up
Other parts in 42RE position 191:
  • 12191 Ring, A904 Accumulator Piston (Small) (1.062”OD) 1960-86 (Use 12177A)
  • 12191C Ring, A500 3-4 Accumulator Piston (Small, In Valve Body) 1989-Up
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