My Account
Shopping Cart

Sierra 18-8358 Lower Unit Seal Kit for Volvo Penta Sterndrives

Manufacturer

Part Number

18-8358
Sale Price

$150.98

2 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-8358 Lower Unit Seal Kit is a premium aftermarket replacement seal kit designed for Volvo Penta sterndrive systems, specifically the 280DP and 290DP Duo-Prop models. Engineered to meet or exceed OEM specifications, this kit delivers reliable sealing performance to protect the lower unit gearcase from water intrusion and gear oil loss.

Key Features:

  • Direct OEM replacement — replaces Volvo Penta 876267-6
  • Also interchangeable with Mallory 9-77903
  • Engineered to meet or exceed original equipment manufacturer (OEM) standards
  • Designed specifically for Volvo Penta 280DP / 290DP Duo-Prop sterndrive lower units
  • Part of Sierra's comprehensive marine aftermarket parts line covering all major engine brands

OEM Cross-Reference Numbers:

  • Volvo Penta: 876267, 876267-6
  • Mallory: 9-77903
  • Sierra: 18-8358 / SIE18-8358

Sierra International is the marine industry's leading aftermarket parts supplier, offering over 6,000 marine parts, tools, and components engineered to OEM standards. The Sierra 18-8358 is a trusted, cost-effective solution for lower unit seal replacement on compatible Volvo Penta sterndrive applications.

Parts were actually in-stock unlike every other retailer I tried. Quick shipping too.

very easy to shop on this site, fast checkout

Easy

looking forward to receiving my order!

Super Easy Find what I NEEDED Plus at a Very Low Price AND ORDERING WAS EASY AND QUICK HOPE DELIVERY IS AS FAST AS ORDERING

Had then part I needed for a great price!

Excellent!!!

lots of inventory, i ordered a hard to find air filter which was cheaper than all the other sites and shipped out fast. Nice!

It's been very easy so far. Thanks!

same part Firestone quoted me190 for....this was a huge savings.

Fantastic company! Great selection for every vehicle and fast shipping! I will definitely shop here again.

Great buying experience! Easy ordering, competitive pricing and fast shipment.

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy