How long does it take to replace a Sea-Doo starter relay (278003012)?
My Sea-Doo just clicks when I press the start button, and I've narrowed it down to the starter relay (part number 278003012). I'm reasonably handy but want to know how much labour time I should budget for this job, or what a dealer would charge if I take it in.
Answer
Replacing the Sea-Doo starter relay (part number 278003012) takes 15 to 30 minutes for an average owner. A marine dealership will bill 0.5 hours of labour for this straightforward job, which requires only basic hand tools to access the electrical box, swap the leads and secure the new unit.
Dealership Labour vs DIY
A Sea-Doo dealer can replace the relay in 15 minutes. Most marine workshops operate on a minimum billing time of 0.5 or 1.0 hours. With current labour rates between £100 and £150 per hour, expect a labour bill of £50 to £150, plus the part cost and a diagnostic fee.
The genuine BRP OEM relay (278003012) costs £45 to £60. You will find aftermarket alternatives online for £15. These cheaper units often use inferior internal contacts that arc and weld shut under the 30-amp starting load. Buy the genuine BRP part to avoid being stranded.
Required Hand Tools
You do not need a fully equipped workshop. A basic socket set is enough. Gather the following items before you start.
- A 10mm socket and ratchet (for the battery terminals and heavy relay cables).
- An 8mm socket or Torx T20/T25 driver (to open the electrical fuse box).
- A small flathead screwdriver (to release the locking tab on the 2-wire trigger harness).
- Dielectric grease (to keep moisture and salt out of the new connections).
- A wire brush or emery cloth (to clean the cable ring terminals).
Step-by-Step Replacement
Always disconnect the battery before starting electrical work. Remove the negative cable first to prevent accidental shorts against the engine block. Follow these steps.
- Locate the relay: On large-hull 4-TEC models like the GTI, RXP and RXT, the relay sits inside the rear electrical fuse box near the battery. On the Sea-Doo Spark, it sits under the top deck access panel.
- Remove the cover: Unclip or unbolt the lid of the electrical box to expose the relay and fuses.
- Disconnect the cables: Remove the two 10mm nuts securing the heavy red cables. One cable comes from the battery, and the other goes to the starter motor.
- Unplug the trigger wire: Squeeze the plastic tab on the small 2-wire connector and pull it free. This wire tells the relay to close when you press the start button.
- Swap the unit: Slide the old relay out of its rubber mounting grommet or unbolt its metal bracket. Slot the new 278003012 relay into the exact same position.
- Reconnect and torque: Reattach the heavy red cables. Torque the 10mm nuts to 4 Nm. Do not overtighten these nuts. The copper posts on the relay are soft and will snap under too much force.
- Finalise the connections: Plug the trigger wire back in, apply a smear of dielectric grease over the exposed terminals and reinstall the electrical box cover. Reconnect your battery, positive first and negative last.