43 MARINE · CUSTOM UPGRADES
Your boat.
Your way.
Battery systems, electronics, rigging and EVA decking, planned around your boat and the way you spend time on the water.
Lake Tapps · Bonney Lake · Buckley, WA
See the builds behind 43 Marine →
43 Marine is your team.
EPOCH + VICTRON PACKAGE BUILDER
Your setup.
Your power package.
Start with one of nine power packages for trolling motors, marine house systems, RVs, truck campers and camper vans. Make it yours with the components you need.
01 · Choose a package
02 · Swap components and quantities
03 · Send your build for a reviewed quote
Plan your equipment and see the subtotal as you go. Final compatibility, installation, shipping and tax are reviewed with your quote. No payment is taken online.
43 Marine / Built around your boat
Marine upgrades,
made for your boat.
A stronger battery bank, a more capable helm or a deck that feels like yours. Start with the part of your boat you want to improve.

Installed Battery Upgrades
Plan a battery and charging setup around your boat, onboard electronics, and time on the water. Request a quote for installation and upgrade scheduling.

Marine Electronics & Rigging
Upgrade your helm and onboard setup with marine electronics and rigging tailored to your boat. Share your current equipment and the changes you have in mind.

EVA Decking & Customization
Give your boat a more personal finish with EVA decking and custom upgrades. Tell us about your boat, layout, and design preferences to start a quote.
43 MARINE / EPOCH BATTERY BUNDLES
Your setup.
Your power package.
One battery. One matching 15A lithium charger. Start with the voltage and capacity that fit your boat, then let’s confirm the right bundle for your system.
Explore the four flyer bundles
- 12V 105Ah Essential — house + electronics
- 24V 60Ah Pro — trolling motor
- 36V 50Ah Essential — trolling motor
- 36V 100Ah — higher capacity
Equipment-only bundles. Installation, wiring, trays, fuses, shipping, and tax are separate. We confirm compatibility, availability, and the final quote with you. No payment is taken online.

43 MARINE MERCH / ESTORIA CREW
Wear the story.

01 / The everyday collection
43 Marine
Good boats. Better days. Signature pieces for the people behind the projects.
Explore collection →
02 / Available now · The fishing collection
Yon Ju San Fishing
Ten saltwater and Puget Sound fishing tees. $43 each. Made to order.
Explore collection →
03 / The story collection
The Build Series
Real boats. Real work. Wear the stories that built 43 Marine.
Explore collection →Yon Ju San Fishing is available now. Other collections are previews. Campaign images are illustrative; fishing product images are Printful mockups.
Be part of the
Estoria Crew.
Time in the garage. Lessons learned by doing. Another day worth launching for. Estoria is the story we build together, and every person who shows up becomes part of it.
You do not need a finished build to belong. Our merch carries the story forward and supports the next chapter.
Explore the merch →Shop the ten-design fishing collection. Made to order by Printful, with no pre-made inventory.

43marine is your team
Good work starts with a real conversation.
Tell us what you have, what you want to improve and how you use your boat. We’ll help define the scope and walk through your options.
You don’t need to have the whole build figured out to start a conversation.
Good Boats. Better Days.
A Story Built on the Water.
43 Marine started with our own boats—bringing older aluminum hulls back to life, solving problems and learning with every project. From the green Starcraft to the white Starcraft and the rebuilt Spectrum, each chapter helped shape our approach to practical marine upgrades.
Fishing, family and more days on the water are the reason behind the work. 43 Marine is our marine-upgrade and build brand, part of 43Group. Yon Ju San Fishing shares the fishing and adventure side of the journey. Estoria Crew brings those stories into our community and merchandise.
Follow the builds. Plan your next upgrade. Be part of the story.
Marine upgrades, made for your boat.
-
Plan a battery and charging setup around your boat, onboard electronics, and time on the water. Request a quote for installation and upgrade scheduling.
-
Upgrade your helm and onboard setup with marine electronics and rigging tailored to your boat. Share your current equipment and the changes you have in mind.
-
Give your boat a more personal finish with EVA decking and custom upgrades. Tell us about your boat, layout, and design preferences to start a quote.
A stronger battery bank, a more capable helm or a deck that feels like yours. Start with the part of your boat you want to improve.
Good work starts with a real conversation.
Tell us what you have, what you want to improve and how you use your boat. We’ll help define the scope and walk through your options.
You don’t need to have the whole build figured out to start a conversation.
Good Boats. Better Days. A Story Built on the Water.
43 Marine started with our own boats—bringing older aluminum hulls back to life, solving problems and learning with every project. From the green Starcraft to the white Starcraft and the rebuilt Spectrum, each chapter helped shape our approach to practical marine upgrades.
Fishing, family and more days on the water are the reason behind the work. 43 Marine is our marine-upgrade and build brand, part of 43Group. Yon Ju San Fishing shares the fishing and adventure side of the journey. Estoria Crew brings those stories into our community and merchandise.
Follow the builds. Plan your next upgrade. Be part of the story.