Dorman Crankshaft Position Sensor 917-781 — Direct-Fit Replacement, OEM Match, Heat-Resistant

The Dorman 917-781 Engine Crankshaft Position Sensor is a direct-fit replacement sensor that restores accurate crankshaft signal input to the engine control unit.

This crankshaft position sensor from Dorman is engineered to match the fit and function of the original equipment on specified vehicles, offering a reliable option when the factory sensor has failed due to heat, internal wear, or electrical problems. Built to the brand’s standards, the replacement is designed for straightforward installation and consistent signal output so the engine control system can receive the data it needs to manage timing and fuel delivery.

How does this sensor restore engine control accuracy?

Replacing a failed crankshaft position sensor ensures the engine control unit receives the correct rotational position and speed signals from the crankshaft. With accurate input, timing and ignition systems can operate within intended parameters, reducing erratic idling and misfires caused by a faulty sensor.

• Matches original electrical characteristics to supply correct signal voltage and waveform
• Designed to fit the OEM mounting points for proper alignment with the crankshaft tone wheel
• Helps reestablish consistent RPM and position feedback to the ECU

What makes this Dorman sensor a dependable replacement option?

Dorman manufactures the 917-781 to meet strict specifications for durability and performance. Components are chosen to resist common failure modes such as heat exposure and internal component degradation, and production follows quality checks that reflect decades of automotive parts experience.

• Durable construction to resist heat and vibration in the engine bay
• Engineered to replicate original fit and function on confirmed vehicle applications
• Supported by Dorman’s product expertise and manufacturing standards

How difficult is installation, and what should I check before buying?

Installation is straightforward for most technicians and experienced DIYers because the sensor is built to OEM mounting geometry. Before purchase, verify fitment using the vehicle lookup tool and review any fit notes displayed with the Confirmed Fit indicator to ensure compatibility with your specific year, make and model.

• Plug-and-play electrical connector where specified—no splicing required on compatible vehicles
• Confirm fit with the site’s garage tool and hover over the blue “i” for any special notes
• Inspect the tone wheel and mounting seal on the vehicle during replacement for best results

Will this sensor work for both daily drivers and older vehicles?

The 917-781 is designed to serve a range of vehicles listed in its fitment guide, making it suitable for routine repairs on daily drivers as well as restoration projects on older cars where the original sensor has failed. It provides a practical replacement option when the original component no longer delivers reliable signals.

• Intended for vehicles specified in the confirmed fit list on the product page
• Useful for routine maintenance or as a like-for-like repair part
• Engineered to perform under normal operating conditions expected in everyday use

Who is this for: The Dorman 917-781 crankshaft position sensor is aimed at vehicle owners, independent mechanics and fleet technicians who need a dependable, direct-replacement sensor to restore crankshaft signal integrity. If you’re troubleshooting timing or ignition issues tied to a faulty crank sensor and your vehicle appears in the confirmed fit listings, this part provides a factory-style replacement backed by Dorman’s automotive expertise.