Sierra Tab Washer 18-3200-9, Pack of 10, Replaces Mercury 14-31210 and Honda 90508, Fits 150 HP Outboards 1990 and 1991

The Sierra 18-3200-9 tab washer is sold in a pack of 10, providing a ready supply of the flat tab washers used to lock propeller nuts in place on outboard motor drive shafts. Each washer is made from alloy and carbon steel and finished in gold, matching the specification of the original equipment hardware it is designed to replace. The tabbed design bends up against a flat on the prop nut to prevent the nut from backing off under vibration and load, making it a routine wear item to replace any time a propeller is removed or serviced.

This tab washer is intended for 150 HP outboard applications covering the 1990 model years B, C, and D and the 1991 model year (all variants). It corresponds to the OEM tab washer specification used across these applications and is a common companion part when installing a new propeller, servicing the prop shaft, or replacing hardware that has been bent or worn from prior tab-washer use.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-3200-9
• Number of Pieces: 10 washers per pack
• Washer Type: Flat
• Metal Type: Alloy Steel, Carbon Steel
• Finish/Color: Gold
• Item Dimensions: 4 x 4 x 1.5 inches
• Package Dimensions: 5.0 x 4.6 x 0.7 inches
• Weight: 0.19 pounds
• UPC: 808282164508

Fitment

• 150 HP outboard, 1990 model years B, C, D
• 150 HP outboard, 1991 model year, all variants

Replaces (OEM)

• Mercury/Mercruiser 14-31210
• Mercury/Mercruiser 14-816629
• Honda 90508
• ZWI.003
• Pleasurecraft RO96117

Frequently Asked Questions

How many washers come in the Sierra 18-3200-9 pack? The 18-3200-9 pack contains 10 flat tab washers, sold together as one unit.

What does the 18-3200-9 tab washer fit? This tab washer fits 150 HP outboards from the 1990 model years B, C, and D, as well as the 1991 model year across all variants.

What OEM part numbers does 18-3200-9 replace? It replaces Mercury/Mercruiser 14-31210 and 14-816629, Honda 90508, ZWI.003, and Pleasurecraft RO96117, so any of those original part numbers can be cross-referenced to the Sierra 18-3200-9.

What material is the tab washer made from? Each washer in the 18-3200-9 pack is made from alloy and carbon steel with a gold finish.

What size is each tab washer? The item dimensions for the 18-3200-9 washer set are 4 x 4 x 1.5 inches, packaged in a box measuring 5.0 x 4.6 x 0.7 inches.

How much does a pack of 18-3200-9 washers weigh? A pack of 10 Sierra 18-3200-9 tab washers weighs 0.19 pounds.

When do I need to replace a tab washer like this one? Tab washers such as the 18-3200-9 should be replaced any time the propeller nut is removed for prop service or replacement, since the bent locking tab is a one-time-use feature.

Is the 18-3200-9 washer genuine Sierra or aftermarket? The 18-3200-9 is a Sierra-branded tab washer manufactured to the OEM specification of the Mercury, Honda, and Pleasurecraft part numbers it replaces.

What is included when I order the 18-3200-9? Ordering the Sierra 18-3200-9 gets you one pack of 10 flat tab washers; no other hardware is included.

Will the 18-3200-9 fit outboards other than 150 HP models from 1990 and 1991? The stated fitment for the 18-3200-9 tab washer covers 150 HP outboards in the 1990 (B, C, D) and 1991 (ALL) model years; other applications are not specified.