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Standard Ignition SC9 Automatic Transmission Output Shaft Speed Sensor
| Brand | Standard Ignition SC9 |
|---|---|
| Connector Gender | Female;Male;Female;Male+Female |
| Connector Shape | Oval |
| Connector Type | Plug In |
| Mounting Location | Trans Mount |
| Mounting Type | Bolt Mount |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Fits | Oldsmobile, Buick, Pontiac, and Chevrolet · 42 vehicles |
Plug-in design. Simplifies installation with a single oval connector and bolt-mount setup.
Precision performance. Engineered for accurate transmission speed sensing and dependable operation.
Quality control. Made under complete manufacturing oversight from components to finished product.
Cross-references Dorman - HELP 31015, 5S4621 and 72-3589 for the same application. See all 10.
Automatic Transmission Output Shaft Speed Sensor
Standard Ignition SC9 is an automatic transmission output shaft speed sensor built for vehicles that need accurate transmission speed signal input. It uses a plug-in, oval connector with a bolt-mount design for trans-mounted applications, making it a direct service part for select Buick, Chevrolet, Oldsmobile, and Pontiac models.
Fits 1988-1993 Buick Century, 1988-1992 Buick Regal, 1988-1991 Oldsmobile Cutlass Supreme, and other listed applications across the 1988-1993 model years.
- Brand: Standard Ignition
- Part number: SC9
- Automatic transmission output shaft speed sensor
- Trans mount, bolt mount installation style
- Oval connector with plug-in connection
- 2 blade terminals
- Female/male connector gender configuration
- Direct fit for select domestic applications
Fitment Details
- Fits 1992-1993 Oldsmobile Cutlass Cruiser, N/A, w/ Aluminum Case; w/ 2 Bolt Mounting
- Fits 1991-1992 Buick Century, N/A
- Fits 1989 Buick Century, N/A
- Fits 1988-1992 Buick Regal, N/A
- Fits 1991-1992 Oldsmobile Cutlass Ciera, N/A
- Fits 1989 Oldsmobile Cutlass Ciera, N/A
- Fits 1992 Pontiac Bonneville, N/A
- Fits 1992 Pontiac Grand Prix, N/A, w/ 19 Bolt Transmission Pan
- Fits 1991 Oldsmobile Cutlass Cruiser, N/A, w/ 2 Bolt Mounting
- Fits 1988-1991 Oldsmobile Cutlass Supreme, N/A
- Fits 1988-1991 Pontiac 6000, N/A
- Fits 1989-1990 Chevrolet Celebrity, N/A
- Fits 1990 Chevrolet Lumina, N/A
- Fits 1988-1990 Pontiac Grand Prix, N/A
- Fits 1988-1990 Pontiac Tempest, N/A
- Fits 1988 Chevrolet Celebrity, N/A, Transmission Mounted
- Fits 1988 Oldsmobile Cutlass Supreme, N/A, Compatible with vehicles equipped with U.S. Emissions for Distributor Ignition Pickup.
What It Helps Fix
- Incorrect transmission output speed signal
- Harsh or inconsistent shifting caused by speed sensor faults
- Transmission warning lights related to sensor performance
- Delayed or erratic transmission control input
- Service issues on trans-mounted sensor applications
Installation Notes
Verify the connector style, terminal layout, and mounting location before installation. SC9 uses a female/male connector configuration, one connector, and two blade terminals, so matching the original sensor design is important for proper electrical connection. Confirm vehicle-specific notes such as aluminum case, 2-bolt mounting, transmission-mounted location, or 19-bolt transmission pan requirements where listed.
This part cross-references Dorman - HELP 31015 for the same application.
Quality Assurance
Standard Ignition states that its manufacturing process is controlled from component sourcing through finished product assembly. The brand also emphasizes broad sensor coverage and production control for precision performance, durability, and long service life.
| Year | Make | Model | Drive Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 1993 | Oldsmobile | Cutlass Cruiser | — | — | 3.3L | V6 | N/A | w/ Aluminum Case; w/ 2 Bolt Mounting |
| 1992 | Buick | Century | — | Automatic | 2.5L | L4 | N/A | — |
| 1992 | Buick | Century | — | — | 3.3L | V6 | N/A | — |
| 1992 | Buick | Regal | — | — | — | — | N/A | — |
| 1992 | Oldsmobile | Cutlass Ciera | — | Automatic | — | — | N/A | — |
| 1992 | Oldsmobile | Cutlass Cruiser | — | — | 3.3L | V6 | N/A | w/ Aluminum Case; w/ 2 Bolt Mounting |
| 1992 | Pontiac | Bonneville | — | Automatic | — | — | N/A | — |
| 1992 | Pontiac | Grand Prix | — | Automatic | 3.4L | V6 | N/A | w/ 19 Bolt Transmission Pan |
| 1992 | Pontiac | Grand Prix | — | Automatic | 3.1L | V6 | N/A | w/ 19 Bolt Transmission Pan |
| 1991 | Buick | Century | — | Automatic | 2.5L | L4 | N/A | — |
| 1991 | Buick | Century | — | — | 3.3L | V6 | N/A | — |
| 1991 | Buick | Regal | — | — | — | — | N/A | — |
| 1991 | Oldsmobile | Cutlass Ciera | — | Automatic | — | — | N/A | — |
| 1991 | Oldsmobile | Cutlass Cruiser | — | — | — | — | N/A | w/ 2 Bolt Mounting |
| 1991 | Oldsmobile | Cutlass Supreme | — | — | 3.1L | V6 | N/A | — |
| 1991 | Oldsmobile | Cutlass Supreme | — | — | — | — | N/A | — |
| 1991 | Pontiac | 6000 | — | Automatic | — | — | N/A | — |
| 1990 | Buick | Regal | — | — | — | — | N/A | — |
| 1990 | Chevrolet | Celebrity | — | Automatic | — | — | N/A | — |
| 1990 | Chevrolet | Lumina | — | Automatic | — | — | N/A | — |
| 1990 | Oldsmobile | Cutlass Supreme | — | — | — | — | N/A | — |
| 1990 | Pontiac | 6000 | — | Automatic | — | — | N/A | — |
| 1990 | Pontiac | Grand Prix | — | Automatic | 2.3L | L4 | N/A | — |
| 1990 | Pontiac | Grand Prix | — | Automatic | 3.1L | V6 | N/A | — |
| 1990 | Pontiac | Tempest | — | Automatic | — | — | N/A | — |
| 1989 | Buick | Century | — | Automatic | 2.8L | V6 | N/A | — |
| 1989 | Buick | Regal | — | — | — | — | N/A | — |
| 1989 | Chevrolet | Celebrity | — | Automatic | — | — | N/A | — |
| 1989 | Oldsmobile | Cutlass Ciera | — | Automatic | 2.8L | V6 | N/A | — |
| 1989 | Oldsmobile | Cutlass Supreme | — | — | — | — | N/A | — |
| 1989 | Pontiac | 6000 | — | Automatic | — | — | N/A | — |
| 1989 | Pontiac | Grand Prix | — | Automatic | 2.8L | V6 | N/A | — |
| 1989 | Pontiac | Grand Prix | — | Automatic | 3.1L | V6 | N/A | — |
| 1989 | Pontiac | Tempest | — | Automatic | — | — | N/A | — |
| 1988 | Buick | Regal | — | — | — | — | N/A | — |
| 1988 | Chevrolet | Celebrity | — | Automatic | — | — | N/A | Transmission Mounted |
| 1988 | Oldsmobile | Cutlass Supreme | FWD | Automatic | — | — | N/A | Compatible with vehicles equipped with U.S. Emissions for Distributor Ignition Pickup. |
| 1988 | Oldsmobile | Cutlass Supreme | FWD | — | — | — | N/A | — |
| 1988 | Oldsmobile | Cutlass Supreme | RWD | — | — | — | N/A | — |
| 1988 | Pontiac | 6000 | — | Automatic | — | — | N/A | — |
| 1988 | Pontiac | Grand Prix | — | Automatic | — | — | N/A | — |
| 1988 | Pontiac | Tempest | — | Automatic | — | — | N/A | — |
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