Sierra 18-7633 Trim Sender/Limit Kit, Replaces 96863A15, for MC-I, R, MR, Alpha, Alpha Gen II, Bravo Drives

The Sierra 18-7633 Trim Sender/Limit Kit is a replacement trim position sensor and limit switch assembly built for MC-I, R, MR, Alpha, Alpha Gen II, and Bravo stern drives. This kit monitors and signals drive trim position, allowing the helm gauge to display accurate up/down trim range and helping prevent over-trimming the outdrive. It is built from aluminum for durability in the marine engine environment and uses a 12 volt panel mount design with a push button output type, matching the original equipment configuration on covered Mercruiser stern drives.

As a direct replacement, the 18-7633 restores accurate trim feedback when an original sender has failed, drifted out of calibration, or corroded. Sierra states that each of its products meets or exceeds the original equipment part it replaces, making this kit a straightforward swap for the OEM sender on applicable Alpha One and Bravo drive setups.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7633
• Product Type: Trim Sender/Limit Kit
• Weight: 0.65 pounds
• Material: Aluminum
• Item Dimensions: 0.39 x 0.39 x 0.39 inches
• Maximum Supply Voltage: 12 Volts
• Mounting Type: Panel Mount
• Output Type: Push Button
• Style: Classic
• UPC: 808282228774
• GTIN: 00808282228774
• Fits Drives: MC-I, R, MR, Alpha, Alpha Gen II, Bravo

Fitment

Designed to fit MC-I, R, MR, Alpha, Alpha Gen II, and Bravo stern drives.

Replaces (OEM)

• 96863A15

Frequently Asked Questions

What drives does the Sierra 18-7633 Trim Sender/Limit Kit fit? The 18-7633 is designed to fit MC-I, R, MR, Alpha, Alpha Gen II, and Bravo stern drives.

Is the 18-7633 a direct replacement for OEM part 96863A15? Yes, Sierra 18-7633 replaces OEM number 96863A15 and is built to meet or exceed the performance of the original equipment part.

What material is the Sierra 18-7633 trim sender made from? This trim sender/limit kit is constructed from aluminum for durability in a marine engine compartment environment.

What voltage does the 18-7633 trim sender run on? The Sierra 18-7633 operates on a 12 volt supply, matching standard marine electrical systems.

How is the Sierra 18-7633 mounted? It uses a panel mount design with a push button output type, the same configuration as the original equipment sender it replaces.

How much does the 18-7633 Trim Sender/Limit Kit weigh? The Sierra 18-7633 kit weighs 0.65 pounds.

Will the 18-7633 work on an Alpha One outdrive? Yes, the kit is listed to fit Alpha and Alpha Gen II drives, along with MC-I, R, MR, and Bravo drives.

Is Sierra 18-7633 a genuine Sierra part or a generic aftermarket sender? It is a genuine Sierra-branded trim sender/limit kit, part number 18-7633, engineered to meet or exceed the original equipment part it replaces.

What does the trim sender in this kit actually do? The sender in the Sierra 18-7633 kit signals drive trim position to the helm so the trim gauge and limit function read accurately across the drive's trim range.

What color or finish does the 18-7633 come in? The Sierra 18-7633 is finished in aluminum with a classic style housing.