LP40 - Low Pass Filter

Marsoni

M251S

$165.00

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

LP40 - Low Pass FilterThe LP40 is a low pass filter based around the SSI2140, the successor to the legendary SSM2040. The 2040 is the best sounding filter chip that came out of the 19070s and the 2140 takes the original design and adds CV controlled Resonance. The LP40 is a small format filter that does not cut corners. The Input is set up like the Dual SeM20, when the indicator line is straight up the input is at full, anything past that will over drive the input. The

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I have been boating my whole life, this is by far the best gear oil. I use this in my Johnson 115 even though this is technically made by Mercury. I seem to get less if any water intrusion into my gearcase with this oil. If there is any, the oil emulsifies the water and continues to protect the gears. I have had better luck with this than Pennzoil marine or others. Highly recommend. It is a blue color and easy to drain and fill.

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Reviewed in the United States on March 23, 2026

Verified Purchase

Debra

Carnegie, US

★★★★★ 5

Great

Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube

Great lube for the boat

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Reviewed in the United States on May 19, 2026

Verified Purchase

Joshua Murray

Bozeman, US

★★★★★ 5

recommend

Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube

great price

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Reviewed in the United States on May 22, 2026

Verified Purchase

Christopher C.

Charlottesville, US

★★★★★ 4

Does not come with a pump.

Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube

The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)

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Reviewed in the United States on October 28, 2025