51904 ACDelco 21171128 Ignition Lock Cylinder – 1991–1994 Saturn S-Series OEM
New OEM ACDelco ignition lock cylinder kit (part #21171128) engineered as a direct replacement for 1991–1994 Saturn SC, SL, SW, and related S-Series models. Includes a sidebar and six tumblers for secure, factory-matched key operation.
- Description
- Specifications
- Vehicle Fitments
The ACDelco 21171128 is a genuine OEM ignition lock cylinder kit designed as a direct, factory-spec replacement for 1991–1994 Saturn S-Series vehicles. It restores proper key-start and steering column lock function without modification.
- OE Part Number: 21171128 (also cross-referenced as "Cylinder Kit, Ignition Lock" / "Ignition Switch")
- Manufacturer: ACDelco – GM Original Equipment
- Key Type: First-design square-head key; service replacement includes sidebar and six tumblers
- Function: Connects to the ignition switch and engages/disengages the steering column lock when the correct key is inserted and turned
- Fitment: Direct replacement for 1991–1994 Saturn SC/SC1/SC2, SL/SL1/SL2, SW1/SW2 (4-cyl 1.9L)
- Dimensions: Approx. 3.1 × 2.1 × 2.0 in | Weight: ~0.50–0.60 lbs
- Condition: New OEM
- Warranty: Backed by GM's factory warranty
| Condition | New OEM |
|---|---|
| Manufacturer | ACDelco |
| Oe part # | 21171128 |
| Product type | Ignition Lock Cylinder |
- Saturn SC (1991)
- Saturn SC (1992)
- Saturn SC1 (1993)
- Saturn SC1 (1994)
- Saturn SC2 (1993)
- Saturn SC2 (1994)
- Saturn SL (1991)
- Saturn SL (1992)
- Saturn SL (1993)
- Saturn SL (1994)
- Saturn SL1 (1991)
- Saturn SL1 (1992)
- Saturn SL1 (1993)
- Saturn SL1 (1994)
- Saturn SL2 (1991)
- Saturn SL2 (1992)
- Saturn SL2 (1993)
- Saturn SL2 (1994)
- Saturn SW1 (1993)
- Saturn SW1 (1994)
- Saturn SW2 (1993)
- Saturn SW2 (1994)
