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Dorman 907-903 Engine Crankshaft Position Sensor
Dorman 907-903 Crankshaft Position Sensor
Dorman 907-903 is an engine crankshaft position sensor built to match the fit and function of the original unit. It helps the engine control unit receive accurate crankshaft position input after the factory sensor has failed from heat or internal component damage.
Key Features
- Engine crankshaft position sensor for ignition and engine management systems
- Black plastic sensor body with an oval 3-terminal connector
- Male connector with female terminals
- Sensor body diameter: 24.8 mm
- No wiring harness included
- No mounting bracket included
- Direct replacement style for OE-style fitment
Detailed Description
This Dorman crankshaft position sensor is engineered for direct replacement use on select Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, and Isuzu Ascender applications. It is designed to restore crankshaft signal input to the engine control unit, which is critical for ignition timing and engine operation. The Dorman 907-903 is a practical OE-style replacement for vehicles needing a crankshaft position sensor with the specified oval connector and 3-terminal layout.
This part cross-references Standard Ignition PC818 for the same application.
What It Helps Solve
- Crankshaft position sensor fault codes
- Intermittent no-start conditions related to crank signal loss
- Engine stalling caused by failed crankshaft input
- Rough running from inaccurate engine speed data
- Driveability issues after heat-related sensor damage
Installation Notes and Tips
Verify connector shape, terminal count, and sensor body diameter before installation. This sensor uses a male connector with female terminals and does not include a wiring harness or mounting bracket. Confirm the vehicle’s original sensor configuration matches the listed fitment before replacing the part.
Compatible With 2008-2009 Chevrolet Trailblazer, N/A; 2008-2009 GMC Envoy, N/A; 2008-2009 Saab 9-7x, N/A; and 2008 Isuzu Ascender, N/A.
Quality Assurance
Dorman manufactures replacement sensors to match original fit and function requirements for service use. Part number 907-903 is built as an OE-style replacement for the listed applications.
| Brand | Dorman |
|---|---|
| Part Number | 907-903 |
| Color | Black |
| Color | Negro |
| Color | Noir |
| Terminal Type | Aspa |
| Terminal Type | Blade |
| Connector Quantity | 1 |
| Connector Quantity | 1 ensamble de manguera del calentador |
| Connector Shape | Oval |
| Connector Shape | Ovalado |
| Terminal Quantity | 3 |
| Connector Gender | Macho |
| Connector Gender | Male |
| Terminal Gender | Female |
| Terminal Gender | Hembra |
| Wiring Harness Included | No |
| Wiring Harness Included | Non |
| Sensor Body Diameter | 24.8 |
| Mounting Bracket Included | No |
| Mounting Bracket Included | Non |
| Contenidos del paquete | 1 sensor de posición del cárter del motor |
| Material | Plastic |
| Material | Plástico |
| Package Contents | 1 engine crankshaft position sensor |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Packaging Type: Box |
| 2009 | GMC | Envoy | 4.2L | L6 | N/A | Packaging Type: Box |
| 2009 | Saab | 9-7x | 4.2L | L6 | N/A | Packaging Type: Box |
| 2008 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Packaging Type: Box |
| 2008 | GMC | Envoy | 4.2L | L6 | N/A | Packaging Type: Box |
| 2008 | Isuzu | Ascender | 4.2L | L6 | N/A | Packaging Type: Box |
| 2008 | Saab | 9-7x | 4.2L | L6 | N/A | Packaging Type: Box |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.