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Briggs & Stratton Intek Vertical OHV Engine with Electric Start - 540cc, 1in. x 3 5/32in. Shaft, Model# 331977-0001-G1

4.4 out of 5 stars 43 customer reviews
| 49 answered questions

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  • Advanced debris management system with dual-sealing cartridge-style air filter for maximum protection and extended engine life
  •  AVS antivibration system eliminates side-to-side motion of a traditional counter and rotating balance system
  •  Easy-to-use automotive-style dipstick
  • Dura-Bore cast iron cylinder sleeve stands up to wear and abuse while providing improved oil control
  • Dura-Lube gear-driven splash lubrication system continuously supplies oil to all internal parts

Knock Snow Out Cold with Snow Removal equipment at Patio, Lawn & Garden
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Product Description

Briggs & Stratton 504cc Intek Vertical OHV Engine with Electric Start delivers top reliability, performance and durablity to meet the demands of professionals.The OHV engine features a pressure lubrication system with an automotive full-flow style spin-on oil filter that cleans contaminants from the oil.

Product Details

  • Product Dimensions: 18.9 x 16.2 x 12.9 inches
  • Shipping Weight: 82 pounds
  • ASIN: B008BH67Z6
  • Item model number: 331977-0001-G1
  • Average Customer Review: 4.4 out of 5 stars  See all reviews (43 customer reviews)
  • Amazon Best Sellers Rank: #138,871 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • Product Warranty: For warranty information about this product, please click here

Customer Reviews

Top Customer Reviews

This motor was a PERFECT replacement motor for my Craftsman tractor (DYT4000) that had a blown B&S 18.5 HP motor. The old motor model # was 31P777.

New motor arrived is just 3 days. Emails were answered quickly by Equipatron. 4 Bolts lines up perfectly (self-tapping.) Swapped the 6-pin electrical connector (exact fit,) the throttle cable (exact fit,) the wire to the starter (exact fit,) the gas line (exact fit,) and the connection off the motor shaft to the PTO (exact fit.) The only thing that was not exact was the muffler but it was a non-event -- removed the old muffler from the tractor body and just used the muffler that's already attached to this motor. Only tough part was breaking lose the 4 bolts holding the engine and the one on the shaft. A WD40 soak and a breaker bar did the trick.

Added oil and gas, cranked it and away it went. New life for the tractor.
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Verified Purchase
I ordered the engine on Sunday and it was delivered by FEDX on Monday. I Installed and it upgraded my 17 HP Mower engine to a 21 HP tractor, it works very well. I could not be happier.
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I broke my 6 year old engine by running it with too little oil.
This was a perfect replacement for my craftsman lawn tractor.
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What else can I say but WOW!. Exceedingly fast shipping. I ordered on a Monday night and received the motor on Wednesday. As for the motor its self it was an easy install, it took about 90 minutes. The motor was installed on a John Deere L100 which had a 17 hp B&S engine that had died (thrown rod). The muffler on the new motor is different that the stock setup, so the old muffler was used. Also the oil drain extension tube was removed from the old motor and installed on the new. Other that these two details it was a complete plug and play motor swap. Once installed, the new motor was filled with oil and she fired right up! What a great deal, fast shipping, easy install, and saved $1000 verses buying a new lawn tractor!
1 Comment 7 of 7 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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By Brian on September 4, 2013
Verified Purchase
I have a Troybuilt bronco riding lawn tractor, that was on it's second, second-hand motor to blow. I wanted something stronger and reliable to replace it. I expected to have to modify the tractor to fit this motor, but everything fit just right. Great motor.
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Very good it fit prperfectly I highly recommend it for the best replacement for a lawn tractor. Amazon made it so easy to find and purchase
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Verified Purchase
The motor fit exactly and replaced my 18.5 horse power on my craftsman riding lawn mower. It cranked up first tiem and has ran great ever since. I was very pleased in the shipping time and all the other products I purchsed from AMazon.com. Thanks for running an outstanding business with customers needs in mind. Joe Slater
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Verified Purchase
Great engine, better than the original, with a fantastic price.
It fited on the frame and it works really good.
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