Max Motion MMR50-80-56C | Aluminum Gearbox 56C 80:1 Size 50 Output Bore 1

Max Motion MMR50-80-56C | Aluminum Gearbox 56C 80:1 Size 50 Output Bore 1"

Marsoni

M251S

$264.29

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

Max Motion MMR50-80-56C | Aluminum Gearbox 56C 80:1 Size 50 Output Bore 1"Product Details : Max Motion MMR50 80 56C Aluminum Gearbox 56C 80: 1 Size 50 Output Bore 1" Part No: MMR50 80 56C Size: 50 NEMA Frame: 56C Input Bore: 5 8" Output Bore: 1" Ratio: 80: 1 Output RPM: 22 Output Torque (IN. Lbs): 575 Max Input HP @1750 RPM: 0. 38 Max Overhung Load (Lbs): 810 Material: Aluminum Warranty: 1 Year Weight (Lbs): 8,65 Product Accessories : Size 50 Single Output Shaft 1" Size 50 Double Output Shaft 1" Size 50 Plastic Shaft Safety

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So my 2005 Durango has a 5.7 and I put on 253,000 miles on it before it blew a head gasket. Since it was summer, iI decided I'd tackle it myself. The upper end was so full of gunk, I can't believe I hadn't had serious issues. Anyway, I apparently dropped some pieces of crud down the oil channels, 'cuz after putting it all back together, I got alarms for low oil pressure. Figuring I'd try anything else before replacing the oil pump, i gave this stuff a try. WOW!!!! Not only did the oil pressure return, the engine runs SO much smoother! I had forgotten how smooth it ran when it was new. The caveat is that apparently the gunk was the only thing keeping some areas from leaking - as it lost oil at a startling rate. 1 bottle of the Liqui Oil Saver though, and within a week the oil leaks completely stopped.

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Reviewed in the United States on November 8, 2025

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Marlana Lupo

Pawtucket, US

★★★★★ 5

Awesome!!

Had a check engine light come on for cam shaft position. Did some research online about the specific code and found that I could be due to sludge in the engine. Added this and ran for about 30 minutes and then had the oil changed. The light never came back on and the engine is running smooth and quiet. Will definitely use again.

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Reviewed in the United States on April 5, 2026

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Discovery

Carnegie, US

★★★★★ 5

Great product

This brand is great. The car is running great

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Reviewed in the United States on March 4, 2026

Verified Purchase

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