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Snap Ring, A904/A500 Forward & Direct Clutch (Top, Wavy)

Snap Ring, A904/A500 Forward & Direct Clutch (Top, Wavy) — Part # 12878A
Part # 12878A
Type:
Clutch, ring
Transmissions:
30RH, 32RH, 40RH, 42RE, 42RH, 44RE, A998
Data as of:
2026-10-17

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Cross-reference numbers

NumberSystemStatus
12878AWIT✓ catalog
3410571OEM✓ catalog
12601ADACCO? unverified

Where it fits

DiagramPositionTransmission page
30RH878—
42RE87842RE
Other parts in 30RH position 878:
  • 12878 Snap Ring, A904/A500 Forward / Direct Clutch (.061”) (Top, Flat) 1960-Up
  • 12878AA Snap Ring, A904/A500 Rear Clutch (.076”) (Top, Flat)
  • 12878AB Snap Ring, A904/A500 Rear Clutch (.098”)
  • 12878AC Snap Ring, A904/A500 Forward Clutch (Rear Clutch) (.085”) (Top, Flat)
Other parts in 42RE position 878:
  • 12878 Snap Ring, A904/A500 Forward / Direct Clutch (.061”) (Top, Flat) 1960-Up
  • 12878AA Snap Ring, A904/A500 Rear Clutch (.076”) (Top, Flat)
  • 12878AB Snap Ring, A904/A500 Rear Clutch (.098”)
  • 12878AC Snap Ring, A904/A500 Forward Clutch (Rear Clutch) (.085”) (Top, Flat)
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