W2.1 Bolt-On Unloader w/ Injector

Marsoni

M251S

$117.96

Get it in 3 business days with 1 day shipping. Friday, May 29

W2.1 Bolt-On Unloader w/ InjectorFEATURES: Trapped Pressure control set bolt on unloader Reduces cost by eliminating the need for fittings and bypass hose Compact design features forged brass body and hardware Versatile, mounts in seconds to either side of pump manifold Trapped pressure type adjustable unloader valve with internal bypass system Built in chemical injector includes variable metering adjustment SPECIFICATIONS: Maximum Pressure: 3000 PSI Maximum Flow: 4. 5 GPM Maximum

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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I bought this for my Honda civic 2017 lx 1.5 and it is a perfect fit. I didn’t realize how important it is to change it. Let me tell you if you are thinking about buying this, it’s your sign not JUST because of health which is vital and first and foremost but the PRICE! At any oil change or auto shop they will charge no less than 50$ and I’ve seen higher. I will continue to buy this brand. I will update in my next 5,000 miles. 8.00$ or 50$+ and the quality is EXACTLY the same, your choice.

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Reviewed in the United States on April 3, 2026