We just designed and manufactured what look to be the nicest engine cover knobs available for Kawasaki Ultra 160 and 310 Jet Skis as well as older models.

The durable design features 100% 316 stainless steel with a blind thread to hold up to the rigors of saltwater riding, and a knobby cap for easy installation and removal by hand.

These knobs eliminate the annoying 10mm acorn nuts that hold the engine covers in place on the new Jet Skis. There are some plastic knobs and smaller thumb nuts on the market, but those plastic knobs specifically are a safety hazard if they shatter under stress. Our knobs look incredible and perform the part just as well!