Introduction
The wear ring is an essential part of the jet pump on your SEADOO Spark or WILLIAMS 280 Minijet. When worn, it leads to a significant loss of power, poor acceleration, and increased fuel consumption. Good news: replacement is accessible to any amateur mechanic with the right tools.
Symptoms of a worn wear ring
- Unexplained loss of top speed
- Sluggish acceleration despite a healthy engine
- Unusual noise from the pump
- Visible play between the impeller and the ring
Parts and tools needed
Part: WILLIAMS 280 Minijet / SEADOO Spark Wear Ring
OEM reference: 267000925 or 267000883
Tools:
- 10 and 13 mm socket wrenches
- Flat and Phillips head screwdrivers
- Rubber mallet
- Wear ring puller (optional but recommended)
- Marine grease
Replacement steps
Step 1 — Remove the watercraft from the water
Place your SEADOO Spark or WILLIAMS Minijet on a stable dolly or jack stands. Turn off the engine and remove the safety key.
Step 2 — Access the jet pump
Disconnect the steering and reverse cables, then remove the entire propulsion unit from the rear of the jet ski or Minijet. It is not necessary to remove the intake grate located underneath the hull.
Step 3 — Extract the old ring
Using a flat-head screwdriver or a dedicated puller, pry evenly around the ring to extract it without damaging the housing. Do not force from one side only.
Step 4 — Clean the housing
Thoroughly clean the ring housing with a clean cloth. Check the condition of the impeller — if it is damaged, replace it as well.
Step 5 — Install the new ring
Apply a light film of marine grease to the perimeter of the new ring. Insert it by hand, checking alignment, then tap it evenly with a rubber mallet until it is fully seated.
Step 6 — Reassemble and test
Reassemble the propulsion unit, reconnect the steering and reverse cables. Relaunch and test acceleration — you should regain original performance.
Pro tips
- Check the wear ring every season or after navigating in shallow waters (sand, gravel)
- Play greater than 1.5 mm between the impeller and the ring indicates a necessary replacement
- Always buy an original part or one with compatible OEM references to ensure a perfect fit
- Also replace the neoprene seal at the same time as the wear ring, to ensure 100% efficient propulsion
Conclusion
Replacing the wear ring is one of the most cost-effective maintenance operations on your SEADOO Spark or WILLIAMS 280 Minijet. Allow about 30 minutes for a first replacement. Find the compatible wear ring (ref. 267000925 / 267000883) as well as all our wear rings directly on rotaxtenderparts.com with fast delivery in Europe.
