Block

Marsoni

M251S

$56.85

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

BlockPart number: USA9979607 Regular price: 46. 80 Availability: Out of Stock Made by: Whirlpool Manufacturer's Part Number: 8205584 Description Block USA9979607 Replacement Reference and Model Information Part Number 8205584 1177516, AH972937, EA972937, PS972937, AP3799619 Manufacturer Model Number Description Whirlpool MH1150XMS1 MICROWAVE HOOD COMBINATION Whirlpool MH1150XMS3 MICROWAVE HOOD COMBINATION Whirlpool MH1150XMS2 MICROWAVE HOOD COMBINATION

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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

Massapequa, 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