QM40 Mechanical Flow Meter

Marsoni

M251S

$324.50

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

QM40 Mechanical Flow MeterThe GPRO QM40 Series Fuel meter is a strong, accurate, and reliable oval gear flow meter capable of handling the toughest conditions. Frictionless mag drive means no seals and no internal leaks. The GPRO QM40 Mechanical Fuel Meter provides precision fuel measurements for more accurate readings for fleet operations, heavy equipment, and agricultural applications. It features a magnetic drive mechanism that is nearly frictionless; less friction results

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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I am satisfied with this 4 AWG cable. The insulation coating is soft, and the cable itself is very pliable, making it easy to bend and route into the configuration needed for installation. Despite the flexibility, it still feels like a heavy-duty cable designed to handle demanding applications. I am using this cable to provide the necessary amperage to start the generator on my trailer, and it performs as expected. I also like that the wire gauge and cable properties are clearly printed along the side of the insulation, making identification easy during installation or future maintenance. The cable arrived in good condition with no obvious odor from the insulation or packaging. Overall, this appears to be a quality heavy-duty cable that is flexible, easy to work with, and suitable for high-current applications.

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Reviewed in the United States on May 8, 2026

hazard2k

Los Angeles, US

★★★★★ 5

True copper battery cables that are high quality

Size: 10ft, Color: 4awg

I love having heavy duty cable on hand for my cars. It's so nice to be able to make your own starter and alternator cables when restoring cars. These cables are 100% copper, not CCA (copper clad aluminum) like many others are. Copper is far superior for conductivity and handling higher loads. The rubber on the cable is thick and yet very flexible..it's clearly marked and seems very durable. I like to use a hydraulic crimping tool and then add marine grade heat shrink tubing with the adhesive inside of it to keep it as weatherproof as possible.

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Reviewed in the United States on May 10, 2026

Verified Purchase

N. A. Williams

Draper, US

★★★★★ 5

89 mercruiser works fine

The mounting bracket was a little smaller than orginal, but no big deal, just drilled new hole in mounting plate. Solved my starting problem

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Reviewed in the United States on May 20, 2023

Verified Purchase

Charles R Gunther