Mower series / Cub Cadet
Cub Cadet Ultima Series ZTX
The Cub Cadet Ultima Series ZTX is a residential lap-bar zero-turn in three trims: ZTX4, ZTX5 and ZTX6. Decks are 48, 54 and 60 inches, reinforced and fabricated from 10-gauge steel. Engines run from 24 to 26 hp. At J5 Tractors, our Conroe, Navasota, Normangee and Buna stores sell Cub Cadet.
At a glance
residential zero-turn · 3 models: 48", 54" and 60"
- Deck size
- 48-60 in
- Engine
- Kohler Pro 7000 or Kawasaki FS or Kawasaki FX
- Engine horsepower
- 24-26 hp
- Transmission
- Hydro-Gear ZT 3100; Hydro-Gear ZT 3200; Hydro-Gear ZT 3400 Charged
- Top speed
- 8-9 mph
- Cutting height
- 1-4.75 in
- Fuel capacity
- 5.5 gal
- Drive
- Hydrostatic; lap bars
Sold at Conroe, Navasota, Normangee and Buna. Best for mowing acreage from a couple of acres on up, a thicker 10-gauge deck, longer mowing days.
Every model, side by side
| Specification | 48" | 54" | 60" |
|---|---|---|---|
| Engine | |||
| Engine | Kohler Pro 7000 series (KT735) | Kohler Pro 7000 series (KT745) (ZTX4 54) / Kawasaki FS Series (730V) (ZTX5 54) / Kawasaki FX Series (801V) (ZTX6 54) | Kohler Pro 7000 series (KT745) (ZTX4 60) / Kawasaki FS Series (730V) (ZTX5 60) |
| Engine horsepower | 24 hp | 26 hp (ZTX4 54) / 24 hp (ZTX5 54) / 25.5 hp (ZTX6 54) | 26 hp (ZTX4 60) / 24 hp (ZTX5 60) |
| Displacement | 725 cc | 747 cc (ZTX4 54) / 726 cc (ZTX5 54) / 852 cc (ZTX6 54) | 747 cc (ZTX4 60) / 726 cc (ZTX5 60) |
| Fuel capacity | 5.5 gal | 5.5 gal | 5.5 gal |
| Deck | |||
| Deck size | 48 in | 54 in | 60 in |
| Deck construction | Reinforced Fabricated; 10-gauge steel | Reinforced Fabricated; 10-gauge steel with 2-gauge reinforcement | Reinforced Fabricated; 10-gauge steel with 2-gauge reinforcement |
| Cutting height | 1-4.75 in | 1-4.75 in | 1-4.75 in |
| Blades | 3 | 3 | 3 |
| Drive | |||
| Transmission | Hydro-Gear ZT 3100 | Hydro-Gear ZT 3100 (ZTX4 54) / Hydro-Gear ZT 3200 (ZTX5 54) / Hydro-Gear ZT 3400 Charged (ZTX6 54) | Hydro-Gear ZT 3100 (ZTX4 60) / Hydro-Gear ZT 3200 (ZTX5 60) |
| Top speed (forward) | 8 mph | 8 mph (ZTX4 54) / 8.5 mph (ZTX5 54) / 9 mph (ZTX6 54) | 8 mph (ZTX4 60) / 8.5 mph (ZTX5 60) |
| Top speed (reverse) | 3.5 mph | 3.5 mph | 3.5 mph |
| Size | |||
| Front tires | 13"x6.5"-6" | 13"x6.5"-6" | 13"x6.5"-6" |
| Rear tires | 22"x12"-12" | 22"x12"-12" (ZTX4 54) / 23"x12"-12" (ZTX5 54) / 24"x12"-12" (ZTX6 54) | 22"x12"-12" (ZTX4 60) / 23"x12"-12" (ZTX5 60) |
| Comfort | |||
| Seat | 20" high back | 20" high back (ZTX4 54) / 24" high back (ZTX5 54/ZTX6 54) | 20" high back (ZTX4 60) / 24" high back (ZTX5 60) |
| Suspension | None | None (ZTX4 54) / Front caster suspension (ZTX5 54/ZTX6 54) | None (ZTX4 60) / Front caster suspension (ZTX5 60) |
| Current pricing | See Ultima Series ZTX 48" pricing | See Ultima Series ZTX 54" pricing | See Ultima Series ZTX 60" pricing |
All specifications on this page were taken directly from Cub Cadet, the manufacturer. Figures from Cub Cadet Ultima Series ZTX product comparison (specifications) and Cub Cadet series page, checked November 2, 2026: Cub Cadet Ultima Series ZTX product comparison (specifications), Cub Cadet series page. Columns are deck sizes; ZTX4, ZTX5 and ZTX6 are named in parentheses where they differ.
ZTX4, ZTX5, ZTX6
The ZTX4 is the one trim you'll find on the 48. It runs a Kohler Pro 7000 engine. That's 24 hp on the 48 and 26 hp on the 54 and 60. It drives through a Hydro-Gear ZT 3100 at up to 8 mph and seats you on a 20-inch high back.
The ZTX5 comes in 54 and 60. It switches to a 24 hp Kawasaki FS 730V and a Hydro-Gear ZT 3200, good for 8.5 mph. You also get a 24-inch high-back seat, front caster suspension and 23x12-12 rear tires.
The ZTX6 is offered as a 54. It's got a 25.5 hp Kawasaki FX 801V of 852 cc and a Hydro-Gear ZT 3400 Charged. Top speed is 9 mph, and the rear tires grow to 24x12-12.
What the thicker deck means
Each ZTX deck is 10-gauge steel, and the 54 and 60 add 2-gauge reinforcement. The lower the gauge number, the thicker the steel. That's what stands up to the knocks a deck takes along fence lines and around stumps. Cutting height runs from 1 to 4.75 inches with three blades.
The tank holds 5.5 gallons, so you'll stop to fill up less often on a big mow. Front tires are 13x6.5-6 across the series. Would you rather steer with a wheel? The Ultima ZTXS is built on the same idea.
So who's it for? It's for the homeowner with a lot of ground to cover, from a couple of acres on up. It's also for anyone mowing rough pasture edges, where a deck takes a beating. On long open stretches, the ZTX5's 8.5 mph and the ZTX6's 9 mph get you across sooner.
Looking for pricing?
Current pricing is on our live inventory page at j5tractors.com, where our Conroe, Navasota, Normangee and Buna stores list the Cub Cadet mowers they have. Check the 48", 54" and 60" there, then call the store to see one.
Financing
Financing for the Cub Cadet Ultima Series ZTX starts with our easy online credit application. It works for new and pre-owned machines.
Reach out to our sales team
- 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 Cub Cadet Ultima ZTX has the highest top speed?
The ZTX6 54, at 9 mph forward. It runs a 25.5 hp Kawasaki FX and a Hydro-Gear ZT 3400 Charged. The ZTX5 tops out at 8.5 mph and the ZTX4 at 8 mph. Reverse is 3.5 mph whichever trim you choose, so you won't notice a difference backing up.
How much fuel does the Cub Cadet Ultima ZTX hold?
It holds 5.5 gallons on the 48, 54 and 60 alike. Each trim carries the same tank, from the ZTX4 to the ZTX6. A bigger tank means fewer trips to the gas can on a long mow. Engines in the series run from 24 to 26 hp, so you've got the power to use it.
What deck does the Cub Cadet Ultima ZTX 54 have?
It's a 54-inch reinforced fabricated deck of 10-gauge steel with 2-gauge reinforcement. It spins three blades and cuts from 1 to 4.75 inches. The 54 is the one size offered in all three trims. So you can pick a Kohler Pro 7000, a Kawasaki FS or a Kawasaki FX on it.
How much does a Cub Cadet Ultima Series ZTX mower cost?
We keep current pricing on our live inventory page at j5tractors.com, where our Conroe, Navasota, Normangee and Buna stores list the Cub Cadet mowers they have. Pricing depends on the model and how it's equipped, so check the listing for the 48", 54" and 60". If the one you want isn't listed, call the store.
More Cub Cadet series
- Ultima Series Z42-54 in
- Ultima Series ZS42-60 in
- Ultima Series ZT42-60 in
- Ultima Series ZTX48-60 in
- Ultima Series ZTXS48-60 in
- PRO Z 700 Series54-60 in
- PRO Z 900 Series60-72 in
- PRO X 400 Series34-48 in
- PRO X 600 Series36-60 in
Cub Cadet pricing and inventory · Zero-Turn Mower Dealer · Mower Financing · Every series
