Heater, FloThru, BWG M7Ã¢â€žÂ¢ 15" x 2", 230v, 4.0kW, w/Sensors, 800

Marsoni

M251S

$120.30

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

Heater, FloThru, BWG M7Ã¢â€žÂ¢ 15" x 2", 230v, 4.0kW, w/Sensors, 800Balboa Water Group Stainless steel replacement heater assembly, 4. 0kW 230v, 2" x 15". Includes M7 sensors. Made for Balboa VS and Balboa SUV M7 control systems. This heater is compatible with Balboa control systems with the following numbers: 52428, 52428 01, 52641 04, 52641 05, 52641 06, 52641 07, 52641 08, 52641 09 Product Specifications: Housing Configuration Straight Heater Length 15" Lead End Terminal Location 4 1 4" Threaded Tap Orientation

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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

Verified Purchase

Joe H.

Alexandria, US

★★★★★ 5

Works fine in outdrive

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

Good gear oil. Purple dye for leak detection

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Reviewed in the United States on April 2, 2026

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