My Account
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order

Sierra 18-74535 Lower Unit Gearcase Seal Kit for Yamaha F75/F80/F90/F100 Outboards

Manufacturer

Picture for manufacturer Sierra

Part Number

18-74535
10 reviews
Sale Price

$165.59

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
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 18-74535 is a replacement lower unit gear housing seal kit engineered for Yamaha 4-stroke outboard motors. Designed to restore a leak-free seal in the gearcase, this kit provides a cost-effective solution for lower unit service and maintenance, meeting or exceeding OEM quality standards.

Key Features:

  • Direct replacement for Yamaha OEM gear housing seal kit
  • Replaces Yamaha OEM part numbers 67F-W0001-20-00 and 67F-W0001-21
  • Also replaces Mallory part number 9-74535
  • Premium-quality materials for long service life
  • Meets or exceeds manufacturer specifications
  • Includes all seals needed for a complete lower unit gearcase reseal

The Sierra 18-74535 gearcase seal kit is an ideal choice for marine technicians and do-it-yourself boat owners performing lower unit service on compatible Yamaha 4-stroke outboards. Sierra International is a trusted name in aftermarket marine parts, delivering reliable OEM-grade performance at a competitive price.

Lowest prices around, fast to ship. I will be back.

Very fast and easy site.

Good

We will see when product arrives.

Easy shopping, however the confirmation from the warehouse and then the shipment to my home, took a week. For an overall product purchase it's fine, but if you have your car broken and you are waiting for the part, the waiting time is terrible.

Fast service and shipping, Plus the lowest price for the high performance k&n air filter<br>I wanted.

I received the item yesterday, and it was securely shipped and received. Item worked flawlessly! Thanks again.

Autoplicity had the lowest online price for the product I wanted. Being a new product, the listing did not have a shipping weight so the shipping could not be calculated. Had to call customer service to complete the order, but they were eager to help out and seemed to be based in North America. Shipping ended up being higher than expected, but it did arrive in two days via ground. The item was well packed/sealed in a reused box. Overall, a positive experience and quick order processing.

HOPEFULLY FOUND WHAT I WAS LOOKING FOR! THANKS RON

Awesome service, Great price, Fast shipping.

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