Lawn Mowers

CRAFTSMAN MD 21 ” Push 3-in-1 Gas Mower

The CRAFTSMAN MD 21″ 3 in-1 Gas Mower is a push-type lawn mower. There is no self-propelled option with this model. Consumers looking for self-propelled models should look to other models and posts if they need a self-propelled mode. As a result, it is a little cheaper than other lawn mowers since there are fewer features and less material in the lawn mower. Of course, you will get more exercise with this lawn mower, which is not bad in today’s world.

This is a 3 in 1 lawn mower, meaning that you can use the rear bag grass catcher, or you can mulch your lawn clippings or just spread them on the lawn through the side discharge. Either way, you can achieve that manicured look to your lawn by adjusting the height to a desired level and cutting the lawn catching all grass clippings to have that perfect look.

The wheels are all 8-inch diameter wheels. Craftsman has recently added a customer comments section with this lawn mower receiving one positive review.

CRAFTSMAN MD 21 – Specifications:

  • 190 cc Briggs & Stratton 700 Platinum series engine; Delivers 7.0 ft/lbs of gross torque
  • 8” front wheels; 8” rear wheels;
  • 5-position wheel adjustment

Engine: 190 cc Briggs & Stratton 700 Platinum series engine; Delivers 7.0 ft/lbs of gross torque.

Propulsion: This lawn mower is a lush type of lawn mower. Self-propelled is not an option with this model.

Warranty: This lawn mower has a 2-year warranty

CRAFTSMAN MD 21 Features:

  • CRAFTSMAN® exclusive MRS (Most Reliable Starting) with concentrated spark energy plug for easier starting under all starting conditions.
  • CRAFTSMAN® exclusive Smooth Start™ engine with a new ergonomic handle;
  • Ready Start features a no priming, no choking starting system
  • Fresh Start™ cap and cartridge system slowly releases fuel stabilizer into the mower’s fuel tank to help keep the fuel fresh for up to 6 months
  • CRAFTSMAN® exclusive Precision™ cutting system delivers high-performance bagging and mulching with a durable blade giving your lawn a manicured appearance
  • ergonomic selector knobs; foam handle grip
  • black deck
  • bag/mulch/discharge modes; dark grey dust-blocker bag helps keep dirt away from the operator

Description of the CRAFTSMAN MD 21″ 3 in-1 Gas Mower

Although this model lawn mower is 1 inch smaller than many other consumer lawn mowers, you can still make short work of your lawn. It is a basic model with many features that make it a pleasure.

It features a ready-start system which means that you do not need to prime it or set the choke; just pull the starter chord, and away you go.

The fresh start cap is another feature of this lawn mower and the Briggs and Stratton engine. Adding a fuel stabilizer to the cap will slow drip into the tank and keep the gas fresh for up to six months. This can be important for people living in northern communities who put their lawnmowers away for the winter months.

Delivery: All lawn mowers can be picked up at the store or dealer you purchased the lawn mower. Most will also deliver the lawn mower to you at your home for an additional fee.

Safety & Operation

All motorized equipment should be treated with respect and care. Start by reading the safety and operating guidelines outlined in the manual with the CRAFTSMAN MD 21″ 3 in 1 Gas Mower. Follow these guidelines carefully, and you should not have any problems operating the lawn mower.

Always check the engine to ensure sufficient oil in the engine before starting each day. Top up if necessary.  Fill the fuel tank while the engine is cool. A good time to do this is before you start cutting the lawn. Spilled fuel can sometimes cause fires. If you do spill any fuel, wait until it evaporates before starting the engine to avoid any chance of fire. Always fill the fuel tank outdoors.

Never allow anyone to stand in front of the discharge unit when using the side discharge.  This is required to avoid being hit by any debris. Shut the engine off before removing the rear bag to empty it of grass or make any other adjustments to the lawn mower.


Maintenance of the CRAFTSMAN MD 21″ 3 in-1 Gas Mower is pretty straightforward. Please read the guidelines in the manual and follow them.  Arrange to have your engine tuned up once a year and the oil changed simultaneously. This applies to most consumer applications where you are cutting your lawn once a week. If you use the lawn mower for commercial applications, you may need to change the oil more often.

Keep the housing free of debris to avoid the acid from the grass causing the housing to deteriorate. Also, keep grass from building up around the muffler to avoid the possibility of fire. Check the spark plug to ensure that it is not corroded and dirty. Replace if it is pitted. Always use clean, fresh gasoline for your lawn mower. Following these tips and others in the manual will ensure your lawn mower lasts many years.

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2 Responses to “CRAFTSMAN MD 21 ” Push 3-in-1 Gas Mower”

  1. Mke Williams Says:

    Is there any other hight adjusters available for this model CRAFTSMAN MD 21” Push 3-in-1 Gas Mower with more hight options?

  2. Mke Williams Says:

    Are there any other height adjusters for this model,CRAFTSMAN MD 21” Push 3-in-1 Gas Mower with more height options?

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