Marine Electrical Spares Kit: the 20 Associated Parts that save a weekend on the water

The rule of boat electrics

If something fails, it usually fails in one of four places:

1. Power supply
2. Connections
3. Mounting and protection
4. Sensors and adaptors

So, the kit below targets those four pain points using Veethree parts that match real failures.

Think of it as a marine wiring kit that fits in one box, not a second toolbox.

The 20 Associated Parts to keep onboard

1. Wiring harness for VeeCAN 320 C3

If a display loses power or signal, a known good harness ends the guessing fast.

2. GPS receiver NMEA 0183 with four feet cable

When speed or position inputs drop out, swapping the sensor is faster than chasing the whole run.

3. Marine fuel level sender 240 to 33 ohms

Fuel gauges cause more arguments than tides. A spare sender and the job stays simple.

4. Brass adaptor for temperature and pressure sensors ADE 06.901

Wrong thread is a classic “everything works except it does not fit” problem. This fixes that.

5. Set of 3 brass fitting adaptors for temperature and pressure sensors 907004

A small set covers the common thread surprises without carrying a hardware shop.

6. Set of 5 brass fitting adaptors for temperature and pressure sensors 907010

Same idea, wider coverage. Handy when boats have mixed gear over time.

7. Brass fitting adaptor M10 x 1.5 to 1/8 27 NPT ADE 04.994

One adaptor can turn a dead end into a clean install.

8. Brass fitting adaptor 5/8 18UNF to M16 x 1.5 ADE 04.978

Thread mismatch solved, no drama.

9. Steel fitting adaptor 5/8 18UNF to 3/8 18NPT AD 06.912

Keep one steel option onboard for the jobs that demand it.

10. Copper tube oil pressure kit

If a mechanical pressure line fails, this gets it back up without waiting on parts.

11. Heat shield sleeve one inch ID MP RTH03B

Heat cooks wiring insulation. Sleeve it before it becomes a short.

12. Exhaust heat wrap 15 metres by 25mm by 3mm MP RT3025BK Same goal as the sleeve. Protect the hot zones and stop repeat failures. 13. Single hole mounting bracket for 52mm gauges

A loose gauge is not just annoying; it damages wiring over time. Lock it down.

14. Triple hole mounting panel for 52mm gauges

When a dash panel cracks or gets butchered, this is the clean reset.

15. Eyebrow bezel 2 inches

Keeps the dash tidy, protects edges, and makes quick swaps less painful.

16. Eyebrow bezel 3 inches

Same benefit for larger instruments.

17. Gauge pod single

A fast mount option when the original dash spot is damaged or already full.

18. Gauge pod double

Useful when one gauge fails and the “temporary” fix becomes permanent by lunch.

19. Gauge pod triple black

Neat way to relocate instruments and keep wiring runs controlled.

20. Gauge holder triple 52mm

Solid mounting when the dash layout needs a quick rethink.

Do not forget these two basics

If this list feels like “parts”, good. That is the point. Most failures are small and physical.

Also keep these on board, as Veethree recommends in their wiring guide: a small fuse assortment and spare terminals. That is your practical boat fuse kit and your everyday marine connectors stash.

One more detail that matters: many Veethree gauge setups use a sender connection style like a spade terminal, and Veethree even notes adaptor coverage with some installs. That is exactly why terminals and adaptors earn a spot in the box.

Wrap up

A good day on the water ends with sunburn, not swearing at a dashboard.

Open your dash this week. Pick the weak spots. Build a small box of Veethree Associated Parts and label it “weekend saver”. Then, when the boat throws a tantrum, you fix it in minutes and get back to the fun.

If you want to keep it simple, start with the harness, a sender, adaptor sets, heat protection, and the mount parts. Then add the rest as you learn your boat.

FAQs