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Product Overview

This aftermarket replacement spanner nut wrench is supplied for MerCruiser Alpha One and Bravo drive applications and cross-references part numbers 91-17256, 91-36235, and 18-9803. A spanner nut wrench engages the slotted retaining nuts used on sterndrive components so those nuts can be tightened or loosened during service work. The tool is intended for the listed MerCruiser Alpha One and Bravo applications.

Key Features & Performance

• Provides a dedicated tool for turning slotted spanner nuts found on sterndrive assemblies
• Cross-references MerCruiser part numbers 91-17256 and 91-36235
• Cross-references part number 18-9803
• Intended for MerCruiser Alpha One and Bravo applications named in the title
• Useful when servicing or replacing the corresponding retaining nut or related drive component

Fitment & Compatibility

• for MerCruiser Alpha One applications
• for MerCruiser Bravo applications

Common Uses

• Removing or installing slotted retaining nuts during sterndrive service
• Supporting routine maintenance and repair of MerCruiser Alpha One and Bravo drives
• Replacing a missing, worn, or damaged spanner nut wrench

Technical Specifications

• Product Type: Spanner Nut Wrench
• Part Number(s): 91-17256, 91-36235, 18-9803
• Model Application(s): MerCruiser Alpha One, MerCruiser Bravo

Frequently Asked Questions

Q: What does a spanner nut wrench do? A: A spanner nut wrench engages the slots of a spanner nut so the nut can be turned during assembly or disassembly of the relevant component.

Q: How should fitment be verified? A: Compare the complete existing part number and the complete MerCruiser drive model designation against the part numbers and applications shown in this listing before ordering.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.