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Starter Mounting Bolt - 18-8403 - Sierra
Price: $9.59
(Out of stock)
Save: $1.90
(16% Off $11.49)
Part # 18-8403
2nd Day Air for $2.99 More Eligible
(Out Of Stock)
This item is found in the following Product Families
Replaces OEM part #
  • MERCURY MARINE 10-805434-3
3/8 - 16 - 1 11/16 Long
The starter bolts for the 5.0 mercruiser, what length are these, and are they all standard?
Thread size is 3/8"-16 and length on the bolt is 1-13/16".

Will these fit a starter on an '88 OMC Cobra 4.3l?
No these are not called for your motor. You need OEM number 3852722.

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