Rated 4 out of 5 stars.
This Sigma bolt-on unloader comes with an injector built in, and it’s a direct swap for common AR pump parts like the AR20821, 46228, and AR20888.
If your pressure washer is acting up or not cycling right, this might be the fix.
It’s brand new, part number 417246, and made by Sigma—a name that’s known in the game.
Simple bolt-on design means you can get your machine back to work without a headache.
No fancy frills, just a solid replacement part that does what it’s supposed to.
Great for repairs or keeping a spare on hand.
