Mower series / Bad Boy
Bad Boy MZ Rambler
The Bad Boy MZ Rambler is a residential zero-turn mower with a 42-inch deck. It comes with a 19 hp Briggs & Stratton, a 21.5 hp Kawasaki or a 22 hp Rehlko engine, and it tops out at 6 mph. Bad Boy mowers are sold at all five of our J5 Tractors stores: Bryan, Conroe, Navasota, Normangee and Buna.
At a glance
residential zero-turn · 1 model: 42"
- Deck size
- 42 in
- Engine
- Briggs & Stratton or Rehlko or Kawasaki
- Engine horsepower
- 19-22 hp
- Transmission
- Dual Hydro-Gear ZT 2200 drive systems
- Top speed
- 6 mph
- Cutting height
- 1.5-4.5 in
- Fuel capacity
- 6 gal
- Weight
- 632 lb
Sold at Bryan, Conroe, Navasota, Normangee and Buna. Best for yards from a quarter acre on up, tight gates and narrow side yards, trimming around trees and beds.
Specifications
| Specification | 42" |
|---|---|
| Engine | |
| Engine | Briggs & Stratton EX1900 or Rehlko 7000 KT722 or Kawasaki FR651V |
| Engine horsepower | 19 hp or 22 hp or 21.5 hp |
| Displacement | 540 cc or 747 cc or 726 cc |
| Fuel capacity | 6 gal |
| Deck | |
| Deck size | 42" |
| Deck construction | Sloped 3/16 in or 7-gauge steel, formed and welded |
| Cutting height | 1.5-4.5 in |
| Drive | |
| Transmission | Dual Hydro-Gear ZT 2200 drive systems |
| Top speed (forward) | 6 mph |
| Size | |
| Front tires | 11x4-5 smooth |
| Rear tires | 18x8.5-8 Reaper |
| Width (deck out) | 47 in chute up / 56 in chute down |
| Weight | 632 lb |
| Current pricing | See MZ Rambler 42" pricing |
All specifications on this page were taken directly from Bad Boy, the manufacturer. Figures from Bad Boy MZ Rambler specs, checked November 2, 2026: Bad Boy MZ Rambler specs. "Width (deck out)" is the OEM "Width (Chute Up / Chute Down)" figure given both ways.
One deck, three engines
There's just one deck size on the MZ Rambler, so the choice comes down to the engine. The Briggs & Stratton EX1900 makes 19 hp from 540 cc. The Kawasaki FR651V makes 21.5 hp from 726 cc. The Rehlko 7000 KT722 makes 22 hp from 747 cc. That choice matters more on thick spring grass than on a lawn you keep short.
Whichever you pick, the rest is the same. It's got dual Hydro-Gear ZT 2200 drive systems and a 6 mph top speed. The deck is 7-gauge steel, formed and welded, and it cuts from 1.5 to 4.5 inches. The tank holds 6 gallons, and the mower weighs 632 lb. That's a good-sized tank for a 42-inch deck, so you won't be stopping to fill up halfway across the yard.
Made for the tight spots
A 42-inch deck won't mow a pasture in an afternoon. It'll get into places a wider deck can't, though. With the chute up, the MZ Rambler measures 47 inches wide. Chute down, it's 56. Measure your side gate and see if it clears.
It rides on 18x8.5-8 Reaper tires in back and 11x4-5 smooth tires up front. That's a good match for a yard with trees, beds and a mailbox to steer around. Has your lawn grown since you last bought a mower? For a wider deck in the same family, look at the MZ Magnum.
Small yards still grow tall grass in May. With 1.5 to 4.5 inches of cutting height, you can leave it long through a hot spell and cut it shorter when it cools off.
Looking for pricing?
Current pricing is on our live inventory page at j5tractors.com, where our Bryan, Conroe, Navasota, Normangee and Buna stores list the Bad Boy mowers they have. Check the 42" there, then call the store to see one.
Financing
Financing for the Bad Boy MZ Rambler starts with our easy online credit application. It works for new and pre-owned machines.
Reach out to our sales team
- Carson WakefieldBryan store(817) 767-1150
- Gene Crye and Andrew LilleyConroe store(936) 441-8110
- Bryan LathamNavasota store(936) 825-8722
- Gavin Johnson and Cody JohnsonNormangee store(936) 396-6032
- George Holder and Steve JeterBuna store(409) 994-3522
Questions people ask
Which engine should I pick for a Bad Boy MZ Rambler?
It comes down to how hard you'll run it. The Briggs & Stratton EX1900 is 19 hp, the Kawasaki FR651V is 21.5 hp and the Rehlko 7000 KT722 is 22 hp. If you cut thick grass or let it grow tall between mows, the extra horsepower helps.
How wide is the Bad Boy MZ Rambler?
It's 47 inches wide with the deck out and the chute up, and 56 inches with the chute down. The deck itself is 42 inches. That's the measurement to check against your side gate, your shed door and your trailer ramp.
What's the top speed of a Bad Boy MZ Rambler?
It's rated up to 6 mph forward. Power goes through dual Hydro-Gear ZT 2200 drive systems. That's a comfortable pace for a 42-inch deck that's working around trees, beds and fences, and it's easy to steer if you're new to zero-turns.
How much does a Bad Boy MZ Rambler mower cost?
We keep current pricing on our live inventory page at j5tractors.com, where our Bryan, Conroe, Navasota, Normangee and Buna stores list the Bad Boy mowers they have. Pricing depends on the model and how it's equipped, so check the listing for the 42". If the one you want isn't listed, call the store.
More Bad Boy series
- E-Magnum42 in
- MZ Rambler42 in
- Maverick48-60 in
- MZ Magnum48-60 in
- ZT Elite48-60 in
- ZT Avenger54-60 in
- Maverick HD42-60 in
- Rebel54-72 in
- Rebel SD54-61 in
- Rogue54-72 in
- Rebel X61-72 in
- Renegade Diesel61 in
- Renegade Gas61-72 in
- Revolt SD34-42 in
- Revolt36-61 in
- Revolt X54-72 in
Bad Boy pricing and inventory · Zero-Turn Mower Dealer · Mower Financing · Every series
