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Mercury Outboard 8M0185982 Driveshaft Housing Spacer 5" Black

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Best Holiday wishes from the crew at BAM Marine!

We are closed until Monday Jan 5th, 2026

Orders placed now will be processed when we return

See more details about our holiday schedule here

As always online ordering is available 24/7!

We wish you and yours health and happiness this holiday season! Thank you.

 

 

 

8M0185982 Driveshaft Extension Kit Black 5 Inch
This is a genuine Mercury Marine factory OEM part, not aftermarket
Please check our current stock level and order below. Use the Contact Us form at the bottom of the page for any questions
Availability: Not in stock - will be transferred from factory
Manufacturer part number: 8M0185982
GTIN: 745061241954
Normally Ships: Warehouse transfer - on 4th business day
Manufacturer: Mercury Marine
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MSRP: $549.64
$517.11

Superseded from part # 8M0142779

Converts 15" to 20"(L)

Must purchase spacer kit and a driveshaft extension kit to do a complete installation on V6 & V8 FourStroke outboards.

Fits 175-300/300R Mercury V6 (3.4L) & V8 (4.6L) FourStroke outboards - USA Mercury Outboard serial number 2B529482 and up,2018 - 2024

The XXL driveshaft option cannot be installed on the standard 300HP CMS engines, but it can be installed on the 300HP SeaPro.

The max extension length available is Extra Extra Long (XXL), measuring at 76.2CM (30 IN).

Superseded from part # 8M0142779

Converts 15" to 20"(L)

Must purchase spacer kit and a driveshaft extension kit to do a complete installation on V6 & V8 FourStroke outboards.

Fits 175-300/300R Mercury V6 (3.4L) & V8 (4.6L) FourStroke outboards - USA Mercury Outboard serial number 2B529482 and up,2018 - 2024

The XXL driveshaft option cannot be installed on the standard 300HP CMS engines, but it can be installed on the 300HP SeaPro.

The max extension length available is Extra Extra Long (XXL), measuring at 76.2CM (30 IN).