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Brand: Sierra Marine
18-9803 Sierra International, Spanner Nut Wrench
Sierra International 18-9803 Spanner Nut Wrench removes and installs the drive shaft bearing retainer.
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18-9803 Sierra International, Spanner Nut Wrench
The 18-9803 Spanner Nut Wrench from Sierra removes and installs the drive shaft bearing retainer.
It is designed for use with Mercruiser MC-I, R-MR, Blackhawk, all Bravo, and all Alpha drive units.
Interchangeable with Mallory 9-79801, GLM 90100, and Mercruiser Stern Drive 91-17256 and 91-36235.
Check manufacturer recommendations for a proper fit before purchasing.
Each product from Sierra meets or exceeds the original equipment part it replaces.
Key Features
Specifications
- Length
- 16.2 lb
- Width
- 5.8 lb
- Height
- 0.45 lb
- Weight
- 2.72 lb
- ASIN
- B001F0GQPM
- UPC
- 808282245078
- Ships From
- United States
- Brand
- Sierra Marine
Frequently Asked Questions
About 18-9803 Sierra International, Spanner Nut Wrench
01 What is the model number of the Spanner Nut Wrench?
The model number is 18-9803.
02 Which drive units is the wrench designed for?
It is designed for Mercruiser MC-I, R-MR, Blackhawk, all Bravo, and all Alpha drive units.
03 What products is it interchangeable with?
It is interchangeable with Mallory 9-79801, GLM 90100, and Mercruiser Stern Drive 91-17256 and 91-36235.
04 What is the ASIN for this product?
The ASIN for this product is B001F0GQPM.
05 What is the UPC / barcode for this product?
The UPC/barcode for this product is 808282245078.
06 Where does this ship from?
Orders ship from our fulfillment center in Dover, Delaware, USA.
07 How many days will it take to arrive?
Orders ship within 1-2 business days and typically arrive within 4-5 business days via free standard shipping -- usually by Aug 28.
08 Does this product accept returns?
Yes -- this item can be returned within 15 days of delivery for a free return by mail. See our return policy for full details.

