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Washer, A904 4 Gear Front & Rear Planet (4 Outer Tangs) (Tang OD is 2 3/4”)

Washer, A904 4 Gear Front & Rear Planet (4 Outer Tangs) (Tang OD is 2 3/4”) — Part # 12238B
Part # 12238B
Type:
Gear, planet, washer
Transmissions:
30RH, 32RH, 40RH, 42RE, 42RH, 44RE, A998
Size:
Tang OD is 2 3/4”
Data as of:
2026-10-17

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Cross-reference numbers

NumberSystemStatus
3681935OEM✓✓ confirmed by 2 sources
12238BWIT✓ catalog
12780GDACCO? unverified

Where it fits

DiagramPositionTransmission page
30RH238—
42RE23842RE
Other parts in 30RH position 238:
  • 12238A Washer, A904/A500 3 Gear Front & Rear Planet (Both Sides) (3 Outer Tangs)
  • 12238C Washer, A904/A500 4 Gear Large Front Planet (Both Sides) (4 Inner Tangs)
  • 12238D Washer, A904 4 Gear Front & Rear Planet (Aluminum Planet) 1 Side (4 Outer Tangs) (Tang OD Is 3 1/8”)
Other parts in 42RE position 238:
  • 12238A Washer, A904/A500 3 Gear Front & Rear Planet (Both Sides) (3 Outer Tangs)
  • 12238C Washer, A904/A500 4 Gear Large Front Planet (Both Sides) (4 Inner Tangs)
  • 12238D Washer, A904 4 Gear Front & Rear Planet (Aluminum Planet) 1 Side (4 Outer Tangs) (Tang OD Is 3 1/8”)
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