• Pro-Trim

    4.38 of 5

    Put the finishing touch on a beautiful landscape.

    • Deck rotates 15 degrees right or left for trimming in tight spaces.
    • Reinforced steel pivot head and 14-gauge (2mm) stamped deck for added durability.
    • 4.5 HP, 173cc Kohler XT-8 engine with a cast iron sleeve and improved air intake is quiet and low maintenance

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Additional Features

  • 22" (56cm) Cutting diameter.
  • Ergonomic, multi-position fold down handle.
  • 4-Position cutting height adjustment
  • 14" (36cm) Wheels
Model Name Model # Engine Rating Engine Manufacturer Fuel Capactiy Starting System Warranty Weight Wheels
Pro-Trim™ 946153 4.5 HP / 173 CC Kohler® 0.40 gal (1.4 L) Recoil 90-Day Limited Commercial
3-Year Limited Consumer
83 lb. (37.6 kg) 14" (35.6 cm)
Rated 4.4 out of 5 by 8reviewers.
Rated 4 out of 5 by great product Everything works very good it is easy to crank. I only wish the string lasted longer August 27, 2014
Rated 5 out of 5 by Why didn't I buy one sooner? I am mad at myself for not buying this sooner because now the inland sea oats, kudzu, and holly have a big head start. I have used my string mower for over a month and couldn't believe how much I have cleared on our 10.5 acres. 3 acres of inland sea oats gone in no time. It will take out the smaller holly, most of the kudzu, and all of those nasty small juniper starts. With the drought in Texas, it is very important to clear out the underbrush to keep the fire danger to a minumum and give my 40' Live Oak trees all the help they can get. I have abused my string mower in some of the roughest conditions and it hasn't given me any trouble. In 2005 I purchased a Gravely 34z mower and have never had any problems. This is a very useful piece of equipment and it replaces my push mower and hand held string trimmer and is easier to use than either one. July 2, 2013
Rated 5 out of 5 by Overall good features We were told the string would last forever almost, problem is it didn’t. My dad wanted it due to problems holding on to a shoulder 1/hand held. Problem is he is having problems to control this also, I myself would prefer a shoulder strap/hand held 1 I can control it better. June 7, 2012
Rated 5 out of 5 by Great Machine We have Trees ,sheds a garden and pool that you just can't get around when mowing. It takes a couple of hrs to mow the whole yard and do the trim but I am sure it would take a lot longer without this trimmer/ Very easy to handle February 22, 2012
Rated 5 out of 5 by AWSOME MACHINE After my first Gravely everything else I buy will be Gravely June 3, 2011
Rated 3 out of 5 by Works Great but !! Works well hacking thru weeds and grass (even thick pricker type weeds that grow to the size of small trees). My major issue is that the plastic guards/shields are beaten and chewed up after two years. It's in the shop getting a tune up and new belt. Not sure what my wife did to it but she claims it was working when she finished. Somehow between then and when I went to use it the belt was shredded and jammed !! Works well but not exactly built like a Honda mower !! June 1, 2011
Rated 4 out of 5 by Most powerful string trimmer I am starting my 3rd season with this trimmer. Mine is the "ST622" model and I have a Briggs&Stratton 6.25 OHV engine. I see Gravely has switched to Kohler, but everything else looks the same. I was leery of the B&S engine, but it has been solid. I use this trimmer on the rough rocky terrain on which I live. It never bogs down and cuts everything up to about 3/8" bushes. 2 durability complaints. The plastic wheels are out of round now. Have not broken and are not hard to wheel, but I think their days are numbered. The plastic shroud around the bottom of the machine cracked, bloke, I replaced it, and has cracked again. This comes from mowing over rough stuff ... but on the other hand, that's why I bought this trimmer and not a mower. Was not expensive to replace, so I just hope the part remains available as long as I own it. Great machine and I'm glad I bought it. June 1, 2011
Rated 4 out of 5 by Works well for tall grass. It had plenty of power walked right thru waist high Dallas grass. Being able to rotate the trimmer to the left of right made trimming next to the fence easy. I’m not to sure about tall plastic wheels no problem yet but it seems like the weak point. It has a clutch so when you let go the engine keeps running but the line stops spinning. It’s not power drive but with the tall wheels it rolled with little effort, it does not feel heavy. It worked well for my purpose. May 12, 2011
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Why Zero-turn?



You can cut your mowing time in half using a zero turn mower instead of a traditional riding lawn tractor. Here are some of the time-saving features of zero turn technology:

Maneuver Around Obstacles

The maneuverability of zero turn mowers allows you to easily mow around trees, flower beds and other obstacles in your yard more easily than with a steering wheel vehicle such as a riding lawn tractor.

Drive at a Faster Speed

Zero turn mowers are designed to cut grass nearly twice as fast as traditional lawn tractors so your straight line mowing speed is improved. A typical lawn tractor cuts at a speed of 3-4 mph while a typical zero turn mower cuts at a speed of 5-8 mph.

Mow in a Single Pass

When you get to the end of your yard and have to turn around and come back, you literally can spin 180 degrees and come straight back without having to back up and cut the strips of grass you would miss when making the turn with a lawn tractor.

Eliminate Follow-Up Trimming

With an unobstructed view of the cutting deck, zero turn mowers make it easy to cut very close to your trim edges – you can nearly eliminate the need to trim hard-to-reach areas with a push mower or a string trimmer after you've finished mowing.​​


Without a steering wheel, a zero turn machine may look intimidating to drive but most people become comfortable with the way it handles after just a few times mowing their lawn.

Steering a zero turn mower is easy. In fact, it is not that different from steering a shopping cart.

  • How to make left turn with Zero Turn
  • How to make right turn with Zero Turn

  • Forward: Push the handles forward.
  • Reverse: Pull the handles back.
  • Right Turn: Push the left handle forward.
  • Left Turn: Push the right handle forward.
  • Stop: Bring the handles back to neutral.

The key to driving in a straight line is to assure that the same amount of pressure is applied to each lever.​​