Total Price:
Add to CartFor: V-6 & V-8 with Thunderbolt ignition (1981-1997) nut connectors.
Interchangeable With:
What is the Sierra 18-5116-1 MerCruiser V6/V8 Ignition Sensor used for?
The Sierra 18-5116-1 MerCruiser V6/V8 Ignition Sensor is a replacement ignition sensor for V-6 and V-8 engines equipped with Thunderbolt ignition. It is specified for applications from 1981–1997 that use nut connectors and is listed as interchangeable with several MerCruiser and aftermarket part numbers.
What MerCruiser engines does the Sierra 18-5116-1 Ignition Sensor fit?
The Sierra 18-5116-1 is specified for V-6 and V-8 engines with Thunderbolt ignition from 1981–1997 that use nut connectors. The supplied description does not provide individual engine models or serial numbers, so verify your specific engine and ignition configuration before ordering.
Does the Sierra 18-5116-1 fit Thunderbolt ignition systems?
Yes. The Sierra 18-5116-1 Ignition Sensor is specifically listed for V-6 and V-8 engines with Thunderbolt ignition from 1981–1997. The application also specifies nut connectors, so confirm that your existing ignition system uses the required connector configuration.
What MerCruiser part numbers are interchangeable with the Sierra 18-5116-1?
The Sierra 18-5116-1 is listed as interchangeable with MerCruiser part numbers 87-861780A2, 87-8611780Q4, 87-892150A02, 87-892150Q02, 87-91019A6, 87-861780A4, 87-91019A3, and 87-91019A2. These references can help verify the correct replacement for your existing ignition sensor.
What aftermarket part numbers interchange with the Sierra 18-5116-1 Ignition Sensor?
In addition to the listed MerCruiser references, the Sierra 18-5116-1 is interchangeable with GLM 73110, Mallory 9-29804, and CDI E11-0005. Compare your existing ignition sensor or applicable part number with these references when verifying the replacement.
What should I verify before purchasing the Sierra 18-5116-1 Ignition Sensor?
Verify that your engine is a V-6 or V-8 with Thunderbolt ignition, falls within the listed 1981–1997 application range, and uses nut connectors. Also compare the existing ignition sensor part number with the listed MerCruiser, GLM, Mallory, or CDI references before purchasing.
California Residents: 
WARNING
Cancer and Reproductive Harm -
P65Warnings.ca.gov
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