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Sierra 18-9803 Spanner Nut Wrench for MerCruiser Stern Drives

Manufacturer

Picture for manufacturer Sierra

Part Number

18-9803
13 reviews
Sale Price

$109.31

In Stock (8)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-9803 Spanner Nut Wrench is a specialized marine tool designed for removing and installing the driveshaft bearing retainer on MerCruiser stern drive units. This essential tool works with MC-1, R-MR, Blackhawk, all Bravo series, and all Alpha series drive units.

Key Features:

  • Direct replacement for Mercury Marine part number 91-17256
  • Compatible with multiple MerCruiser drive unit families including Alpha, Bravo, MC-1, R-MR, and Blackhawk
  • Precision-designed for proper fit on driveshaft bearing retainer nuts
  • Essential tool for stern drive service and lower unit maintenance
  • Durable construction for professional marine technician use

This spanner wrench is a must-have tool for anyone performing lower unit service, driveshaft seal replacement, or bearing maintenance on MerCruiser stern drives. The tool provides the proper leverage and fit needed to safely remove and install the bearing retainer without damage to components.

So far so good, great price.

Simple

Fast and easy

Google took me to your website. They had my hard to find part. Easy to use. Checkout was a snap. If this part is the 1 then this may be my new one and only parts store. LOWEST PRICES!

Very quick ordering with Amazon

It was quick and easy and matched my part to make sure it would fit. Just waiting to see how quick shipping will be now.

ORDER PROCESS WAS EASY, HOPEFULLY PART WILL ARRIVE OVERNIGHT AS IT WAS PAID FOR.

Ok so far

Good price and details. Product reviews were related to the site and not the product.

Fast and easy

Best prices I've found. Trust me I've looked!

I hope this works

Autoplicity had the best price on the Wiseco pistons I needed anywhere. Took a little longer to arrive than I expected but apparently that was due to the pistons being shipped directly from the factory. Otherwise a very good experience overall.

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