Briggs & Stratton Vanguard EFI 37 HP | Vertical Engine | 61E877-0009-J1 | Brand New Genuine OEM Part

Marsoni

M251S

$1450.00

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

Briggs & Stratton Vanguard EFI 37 HP | Vertical Engine | 61E877-0009-J1 | Brand New Genuine OEM PartThe 61E877 0009 J1 Briggs & Stratton Vanguard EFI 37 HP Vertical Engine is a brand new original equipment manufacturer (OEM) engine designed for outdoor power equipment. This multi purpose engine is ideal for yard, garden, and outdoor living applications, providing reliable and efficient performance. With its 37 horsepower output and fuel injection technology, this engine is perfect for powering a variety of outdoor machinery such as lawn mowers,

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A short story long---LOL---My zero turn started acting quirky-it would not run at full power and would begin to stall when put under a full load - like trying to mow some taller or thicker grass- never did stall since I would immediately kill the mower but obviously it was not right. I checked and changed the fuel filters-this one has 2 . One in the pick up line in the tank and one is inline just before the fuel pump unit. No help! So, before I dropped the big bucks to have the local farm dealer come and pick it up (at $75 per pickup and return) plus h=whatever shop charges that would result I thought "What the heck, lets give this stuff a try" I gambled $6 . I put in 5 ounces for the 5 gallons tank, and filled it with the gas I had on hand- should have been relatively fresh gas -no more than 2 weeks since pumped . Well, whatever the cause of the issue within about 15 to 30 minutes of low speed running- mostly at idle - the engine seemed to be idling smoothly as opposed to before where it surged but never died, I gave it a try at mowing. YEA!!!! full power and no bogging down - I finished mowing the yard and a part of the pasture (not yet grown up much so it is not requiring the rotary cutter YET) My only guess is perhaps a batch of either old gas or some water in the gas can or mower tank but whatever the cause it fixed it --and all for $6.

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Reviewed in the United States on April 12, 2025

Verified Purchase

Nancy McKenzie

Los Angeles, US

★★★★★ 5

Convenient to order from Amazon

Size: 16 Fl Oz (Pack of 1), Style: Individual

Works as expected.

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Reviewed in the United States on January 25, 2026

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