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$10.95 Flat Rate Shipping Under $199 | Free Ground Shipping Over $199 | See Exceptions
Free Ground Shipping Over $199.00 | Details
Home Shop By Engine Parts & Anodes Engine Components OEM Fasteners & Mounting Kits Sierra 18-8402-1 | Starter Bolts - 3/8" - 16 - 4-3/8" Long for Mercruiser Stern Drives
Sierra 18-8402-1 | Starter Bolts - 3/8" - 16 - 4-3/8" Long for Mercruiser Stern Drives
Sierra

Sierra 18-8402-1 | Starter Bolts - 3/8" - 16 - 4-3/8" Long for Mercruiser Stern Drives

SKU
Sold out
$14.00
$14.00 - $14.00
$14.00
$11.99
$11.99 - $11.99
$11.99
Availability Out of stock Lead Time Typically Ships in 1 to 2 Weeks In Store - Online Only - This item is stored in an external warehouse. Online orders will be shipped direct to the shipping address or available for in-store pickup typically within 1-3 days.
Unavailable for Same-Day Pickup or Local Delivery

30-Day Return Policy | See Details.

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Available during our normal business hours:

Sierra Marine engine parts are designed to meet or exceed the OEM part they are intended to replace and they are backed by the SeaStar Solutions Two-Year Warranty—one of the best in the business.

We offer a variety of Sierra engine parts for most engine applications on the water today—including MerCruiser, OMC, Johnson/Evinrude, Volvo and more.

How to find the bolt you need

Select your bolt by locating the OEM part number in the table below. Bolts can also be selected according to their diameter, thread pitch and length.

The Sierra Engine Parts Selector

If you do not see the bolt (or other engine part) you need, please visit the Sierra Engine Parts Selector, where you can search by engine make, model, serial number or year of manufacture.

Sierra # Application Replaces OEM Part # Bolt Diameter Length Qty. Model
18-8404-1 Mercruiser Stern Drive 10-8053434 3/8" 1 11/16" 1 10499754
18-8403 Chrysler/Force/US Marine FI1100662, FI1100347 3/8" 1 13/16" 1 10499663
18-8403 Mercruiser Stern Drive 10-8053433, 10-812509184 3/8" 1 13/16" 1 10499663
18-8402 Mercruiser Stern Drive 10-8053432, 10-813642 3/8" 4 3/8" 1 10499747

Brand: Sierra

WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to www.p65warnings.ca.gov

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Backorder Policy: Occasionally, due to demand or supplier delays, some items may be temporarily out of stock or non-stock items. To ensure you can still get the products you need, you can order items even when they're out of stock. Our sales team will update you with the shipping lead time. Once back in stock, we promptly ship your item, and if your order includes both in-stock and backordered items, we may split the shipment. You can cancel your backorder before shipment, and request a refund to original payment method. For any inquiries, contact us at sales@freeportmarine.com.

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