Quick Answer: The Cub Cadet Ultima ZTX4 54 (roughly $6,650-$7,050 at current retail, per Tractor Supply’s own listing — up substantially from this page’s prior ~$4,999 figure) is the best Cub Cadet zero-turn mower for most homeowners — a fabricated ClearCut deck paired with a 24 HP Kohler 7000 Pro Series V-twin that holds up to weekly mowing far better than a stamped-deck machine. Buyers who don’t need the extra deck width do just as well with the Ultima ZT1 50 (now about $3,749, per Home Depot and an authorized Cub Cadet dealer), which uses the same fabricated-deck construction on a smaller frame. The Ultima Z1 42 (about $2,999, unconfirmed at this writing) is Cub Cadet’s most affordable zero-turn, trading the fabricated deck for a stamped deck and a single-cylinder IntelliPOWER engine to hit a lower price.

Cub Cadet has built residential zero-turns since the early 2000s, and the Ultima line is now the brand’s primary fabricated-deck platform. The real decision across the lineup isn’t horsepower — it’s whether you need a fabricated ClearCut deck at all, or whether a lighter stamped deck on the Z1 covers your lot for less money. Here’s how the current lineup compares.

Cub Cadet zero-turn mowers, compared

ModelBest forDeckEnginePriceRating
Ultima ZTX4 54Best overall54" fabricated24 HP Kohler~$6,650-$7,050★★★★★
Ultima ZT1 50Best value50" fabricated23 HP Kawasaki~$3,749★★★★½
Ultima Z1 42Best budget / small lots42" stamped547cc IntelliPOWER (Cub Cadet, single-cylinder)~$2,999★★★★☆
Ultima ZT1 42Cheapest fabricated-deck pick42" fabricated21.5 HP Kawasaki~$3,099-$3,449★★★★☆

1. Cub Cadet Ultima ZTX4 54 — Best Overall

Cub Cadet Ultima ZTX4 54"

Best overall · 24 HP Kohler 7000 Pro Series V-twin · ~$6,650-$7,050
  • 11-gauge fabricated ClearCut deck welded from thicker steel than the ZT1 line, built for daily-in-season use. Current retailer listings (Home Depot, True Value) describe the engine as a Kohler 7000 Pro Series V-twin, not a Kawasaki as this page previously stated — corrected here.
  • Higher-back seat and armrests standard, plus a cup holder and USB port on most trims.
  • 54" deck clears a half-acre to 2-acre lot quickly without stepping up to a commercial-class machine.

If your lot sees mowing more than once a week in-season, the ZTX4’s thicker fabricated deck and larger Kawasaki engine are the upgrade path most ZT1 owners eventually ask about — this just gets you there from the start.

2. Cub Cadet Ultima ZT1 50 — Best Value

Cub Cadet Ultima ZT1 50"

Best value · 23 HP Kawasaki engine · ~$3,749
  • Same 11-gauge fabricated deck construction as the ZTX line, on a lighter, less-optioned frame.
  • Kawasaki-derived engine at a price point that usually only buys a stamped deck and a weaker single-cylinder.
  • The lineup's sweet spot for 1-2 acre residential lots mowed weekly.

For most homeowners, the ZT1 50 gets the fabricated-deck durability that matters most without paying for ZTX-level comfort extras you may not use.

New for 2026: Cub Cadet has replaced the ZT1 with the redesigned Ultima Series Z. On October 29, 2026, cubcadet.com showed the ZT1 50 out of stock with no price, and its successor, the Ultima Z2 50, at $3,799 with the same 50-inch 11-gauge fabricated deck and 23 HP Kawasaki FR691V, plus a 3-year no-hour-limit warranty and lifetime limited coverage on the frame and fabricated deck shell. Home Depot sells the Z2 50 at the same $3,799. See our Home Depot zero-turn mower guide for how the new Z1, Z2 and Z3 tiers differ. Tractor Supply also carries the 2026 Ultima Z line, and on October 30, 2026 it priced every model we matched at Cub Cadet’s list price plus 99 cents, for example the Z2 54 at $3,899.99 against $3,899 on cubcadet.com. See our Tractor Supply zero-turn mower guide.

3. Cub Cadet Ultima Z1 42 — Best Budget / Small Lots

Cub Cadet Ultima Z1 42"

Best budget / small lots · 547cc IntelliPOWER single-cylinder · ~$2,999
  • Cub Cadet discontinued the older RZT S 42 and replaced it with the Ultima Z1 42, which keeps the same 13-gauge stamped-deck, budget-tier positioning, per Cub Cadet's own current product listing.
  • Runs a single-cylinder 547cc IntelliPOWER engine rather than the Kawasaki twin used across the ZT1 line — Cub Cadet rates IntelliPOWER as delivering up to 18% more available power than a non-IntelliPOWER equivalent, which helps in thick or wet grass, but it's still a single-cylinder engine, not a twin.
  • 42" deck suits gates, tight side yards, and lots under an acre.

If your lawn is small and mostly flat, the Z1 42 covers the same ground as the fabricated-deck models at a noticeably lower price — see our zero-turn mower for the money guide for how it stacks up against other brands’ entry models. That 547cc IntelliPOWER single-cylinder engine isn’t unique to Cub Cadet, either — sibling brand Troy-Bilt (also owned by parent MTD Products) badges the same engine platform on its own budget pick; see our best Troy-Bilt zero-turn mower guide for the Z42 at a nearly identical price.

4. Cub Cadet Ultima ZT1 42 — Cheapest Fabricated-Deck Pick

Cub Cadet Ultima ZT1 42"

Cheapest fabricated-deck pick (discontinued) · 21.5 HP Kawasaki FR651V twin · last listed $3,499
  • Same 11-gauge AeroForce fabricated deck as the rest of the Ultima ZT1/ZTX line, on Cub Cadet's narrowest deck option, per Cub Cadet's own listing.
  • Kawasaki FR651V twin-cylinder engine instead of the Z1's single-cylinder IntelliPOWER unit. Cub Cadet listed this ZT1 42 FAB (item 17BIEACEA10) at $3,399 with a $3,199 sale price in May 2025 and at $3,499 in September 2025. On November 4, 2026 its page showed out of stock with no price.
  • Best pick for buyers who want fabricated-deck durability without the width of the ZT1 50, and don't mind paying roughly $450 more than the stamped-deck Z1 42 for it.

For gated or narrow-access lots where a 50” or 54” deck won’t fit through comfortably, the ZT1 42 keeps the Ultima line’s fabricated-deck advantage in a tighter footprint. Its 2026 successor is the Ultima Z2 42 ($3,599), with the same Kawasaki FR651V and 11-gauge fabricated deck plus an hour meter and LED light bar. “ZT1 42” also covered a Kohler-powered stamped-deck model and the ZT1 42IP, which Cub Cadet now sells as the Z1 42 under the same item number. Our Cub Cadet Ultima ZT1 42 review sorts out all three versions.

How the Cub Cadet lineup fits together

The bottom line

For most homeowners, the Cub Cadet Ultima ZTX4 54 is the best Cub Cadet zero-turn — the thicker fabricated deck and larger Kawasaki engine are worth the premium on any lot mowed more than once a week. Budget-focused buyers do just as well with the Ultima ZT1 50 or the stamped-deck Ultima Z1 42, both of which keep a genuine Cub Cadet drivetrain at a lower price. Every model above uses traditional lap-bar steering — if you’d rather have a car-style wheel and pedals, Cub Cadet’s separate Synchro-Steer lineup covers that; see our best zero-turn mower with a steering wheel guide for those models. For how Cub Cadet compares against other brands, see our best zero-turn mower guide.

Last updated: October 24, 2026 — re-verified pricing and specs against current retailer listings. Two real corrections found: (1) the Ultima ZTX4 54’s engine is a 24 HP Kohler 7000 Pro Series V-twin per Home Depot’s and True Value’s current listings, not the Kawasaki this page previously credited; (2) its price has risen substantially to roughly $6,650-$7,050 at current retail (Tractor Supply), up from this page’s prior ~$4,999 figure — Cub Cadet has also since introduced a pricier “ZTXS” Signature tier above it (ZTXS4/ZTXS5, $7,699-$8,699, lifetime frame/deck warranty) that shoppers searching this model name may also run into. The Ultima ZT1 50’s price moved to about $3,749 (Home Depot, confirmed against an authorized Cub Cadet dealer). The Ultima Z1 42 and ZT1 42’s current prices could not be reliably confirmed — listings for both ranged too widely across retailers and model years to support a confident correction, so their figures are left as previously published and flagged here as unverified at this writing. Prior correction retained: Cub Cadet discontinued the RZT S 42 and replaced it with the Ultima Z1 42 (stamped deck, single-cylinder 547cc IntelliPOWER engine, about $2,999 MSRP per Cub Cadet’s prior listing).