Rule Rule-Mate 1100 Fully Automated Bilge Pump - 12V - RM1100B

Rule Rule-Mate 1100 Fully Automated Bilge Pump - 12V - RM1100B

Marsoni

M251S

$117.99

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

Rule Rule-Mate 1100 Fully Automated Bilge Pump - 12V - RM1100BRule Rule Mate 1100 Fully Automated Bilge Pump 12V RM1100B The Rule Mate 1100 (RM1100B) is a fully automated 1100 GPH bilge pump engineered to deliver dependable, hands free bilge management for a wide range of boats. Combining high performance pumping power with an internal electronic float switch, this pump activates automatically when water enters the bilgeno external switch required. Featuring Rules advanced solid state water sensing technology,

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MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.

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Reviewed in the United States on January 9, 2026

Verified Purchase

Dklnyc

Lexington, US

★★★★★ 5

Strong product

Great quality

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Reviewed in the United States on March 11, 2026

Verified Purchase

Sebastian Benavides

Alexandria, US

★★★★★ 1

Snapped bolt

I tried putting it on my n55 from a m235i and it did not fit properly. I was in a rush to try to put it on and thought it was on properly and I thought it did. And I snapped the bolt because the bolt because it was not aligned after I looked at harder I do not recommend for a n55. do not get this cheaply made pos. I recommend getting it from fcp euro where parts will actually fit and not fail.

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Reviewed in the United States on January 1, 2026