A white yacht in front of a beautiful waterfall

Running Gear and Mechanical Services in Seattle, WA

Fiberglass was just the beginning. Years in the boat yard led to hundreds of running gear projects. Lots of owners, local dealers and other contractors come to us for help. At Pacific Fiberglass, we know that your vessel’s running gear is the backbone of smooth, reliable performance on the water. From high-speed cruisers to heavy-load workboats, precise alignment and quality components are essential for safety, efficiency, and long engine life.

Pacific Fiberglass | Running Gear & Mechanical Services
Pacific Fiberglass | Running Gear & Mechanical Services
Pacific Fiberglass | Running Gear & Mechanical Services
Pacific Fiberglass | Running Gear & Mechanical Services
Pacific Fiberglass | Running Gear & Mechanical Services

Our Running Gear & Mechanical services cover every critical component below the waterline — all backed by expert craftsmanship and years of marine experience.

Propellers (Props)

Your propeller is where power meets water — and even slight damage, imbalance, or incorrect pitch can sap performance and fuel economy.

We offer:

Benefits of proper prop management:

Propeller Shafts

The shaft transfers engine power directly to your prop — any misalignment, wear, or corrosion can cause vibration, noise, and premature bearing and seal failure.

Our shaft services include:

With proper shaft alignment, you’ll notice reduced vibration, smoother horsepower delivery, and longer service life for all connected components.

Shaft Seals & Stuffing Boxes

A leaking shaft seal can quickly become a costly and dangerous problem.

We handle:

We install and service the top brands in marine sealing technology to keep water where it belongs — outside the hull.

Thru-Hulls & Seacocks

Any opening in your hull must be installed and maintained with precision.

Our thru-hull services include:

Struts

Struts support your shaft and prop assembly. When they get worn, corroded, or misaligned, vibration and shaft wear follow.

We provide:

A solid strut alignment means reduced stress on your engine, bearings, and seals.

Cutlass Bearings

Cutlass bearings cushion your shaft and protect expensive components from wear, especially in saltwater environments.

Our services here include:

Worn cutlass bearings often cause vibration or noise — don’t ignore them.

Why Choose Pacific Fiberglass for Your Running Gear?

Schedule an Inspection or Repair

Your vessel’s efficiency and safety start with the foundation — your running gear. Whether it’s routine maintenance, emergency repair, or performance optimization, Pacific Fiberglass has you covered.

Client Testimonials

“Kudos to Doug and his team for doing an amazing job! We had only scheduled Pacific Fiberglass to check the rudders, as we were planning on doing the rest of the work ourselves. After hauling out and realizing it was a bigger project than we could handle, they gave us a very reasonable quote, jumped on the job and we were out of the boatyard in 6 days! Amazing work! Thanks to your team!”

Scott Helfen

Client Testimonials

“I brought my sailboat in to Pacific Fiberglass for structural hull and stringer repair after a hard grounding and the work they completed was top-notch. They did all the coordination with Canal Boatyard for travel lift work and kept in good communication with me through the entire process, staying on schedule and on budget. My boat went back into the water better than ever and I couldn’t be happier. It’s nice to see a small business such as this be able to stay in business in Seattle. They would be my first choice for any future fiberglass work I might need done.”

Amanda Lillet

Client Testimonials

“Pacific Fiberglass is amazing. Doug is above and beyond. They went above and beyond on our boat after it got hit in the marina. Look no further - this company is top-notch!!!”

Jelaine Larson

Client Testimonials

“Robert and team were personable and fun to work with. They took my boat in for a couple of minor repairs which were completed as promised. They assumed good will with me and I appreciate both the service and quality of workmanship! Thank you!”

Will Bailey

Client Testimonials

“Doug and his team did me proud. I took my boat in for bottom paint and some other minor repairs. The weather wasn't cooperative so we had a couple minor delays. But once they completed the work, I was very happy. Under budget and done right. Robert especially was key, he kept me informed and up to speed on the job. I'm glad I decided to go with Pacific Fiberglass. Thanks guys.”

Edward Garcia

Get In Touch With Us Today

Contact Pacific Fiberglass today to discuss your project or request a personalized estimate from Seattle’s trusted fiberglass specialists.