Sea Jay Throttle Knob
If the throttle knob on your Sea Jay has cracked or crumbled, it's a part we can usually sort without chasing discontinued spares. With your sample on the bench this is a realistic reproduction job.

If the throttle knob on your Sea Jay has cracked or crumbled, it's a part we can usually sort without chasing discontinued spares. With your sample on the bench this is a realistic reproduction job.
Why these break
Throttle and shift knobs split on the lever. UV exposure breaks down the polymer chains in the original material. By the time the surface looks chalky or faded, the strength underneath is already gone.
How we reproduce them
Reproducing one is straightforward for us: we measure your sample (broken is fine, as long as most of it is there), match the profile, and print in a tougher modern material. Turnaround is usually within the week.
We print these in ASA. ASA is the UV-stable cousin of ABS — it holds its colour and strength through years of Australian sun where the original plastic went chalky and brittle.
As with everything in our library: whether a part can be reproduced depends on size, load, heat, material, and having a decent sample to work from. Send photos first — the assessment costs you nothing, and we'll tell you honestly if a genuine spare is the better option.
Part details
| Manufacturer | Sea Jay |
|---|---|
| Vehicle / equipment type | Boat / outboard |
| Common failure mode | Throttle and shift knobs split on the lever |
| Typical use case | Direct replacement for the original throttle knob on the Sea Jay. |
Printing & reverse engineering
| Can print directly | No |
|---|---|
| Can scan from broken sample | Yes |
| Can redesign / improve | Yes |
| Recommended material | ASA |
| Alternative materials | ABS |
| Print technology | FDM |
| Difficulty | Easy |
| Estimated print time | 30–60 minutes |
| Estimated cost range | $10 – $24 |
| Expected lifespan | 4–6 years outdoors |
| Outdoor suitable | Yes |
| Heat resistant | No |
| Load bearing | Depends |
| Requires post-processing | No |
Ask us about this part
Many plastic parts can be recreated, repaired, redesigned, or printed, depending on size, load, heat, material, and available samples.
