+19177227425Mon-Fr 9a.m.-6p.m.
Request call

5R55S Extension Housing 16770A (Uses 2.364”OD Rear Seal)

Catalog name:
Extension Housing, 5R55N/5R55S/5R55W 2WD (Uses 2.364”OD Rear Seal) (Cast # XW4P-7A039-AA) 1999-Up
Extension Housing, 5R55N/5R55S/5R55W 2WD (Uses 2.364”OD Rear Seal) (Cast # XW4P-7A039-AA) 1999-Up — Part # 16770A
Part # 16770A
Type:
Housing, seal
Transmissions:
5R55N, 5R55S, 5R55W
Years:
1999-Up
Size:
Uses 2.364”OD Rear Seal
Data as of:
2026-10-17

Offers

No offers for this part yet.

Request this part Sell this part

Cross-reference numbers

NumberSystemStatus
16770AWIT✓ catalog
XW4P-7A039-AACasting #✓ catalog
XW4Z-7A039AAOEM✓ catalog

Where it fits

DiagramPositionTransmission page
5R55S770—
Other parts in 5R55S position 770:
  • 16770B Extension Housing, 5R55N/5R55S/5R55W 4x4 (Transfer Case Adapter)
  • 16770G Extension Housing, 5R55S/5R55W 2WD (Uses 2.484”OD Rear Seal)(6 1/2” Long) (2 Bolt Mount) 2002-Up
Before you order

Verify the number before ordering: compare it with the part you have and the transmission model.

Report an error

This feature is in progress and will be available soon.