Cub Cadet Ultima ZT1 50 specs

Zero-turn mower · Ultima ZT1 · Cub Cadet · 1 variant · Last verified 2026-10-27

50 in.Deck width
23 hpPower (as published)
Dual hydrostaticTransmission
Kawasaki FR691VEngine
None foundCPSC recalls

Specifications

Each value links to the manufacturer document and page it came from. “Not yet verified” means we hold a reading that has not passed our checks, so we do not show it. A dash means the sources we used do not publish it.

Engine

Cub Cadet Ultima ZT1 50 Engine
Engine makeKawasaki[product page]
Engine modelFR691V[product page]
Displacement726 cc[product page]
Power (as published)23 hp[product page]

Mower deck

Cub Cadet Ultima ZT1 50 Mower deck
Deck constructionAeroForce fabricated[product page]
Deck width50 in.[product page]

Drivetrain

Cub Cadet Ultima ZT1 50 Drivetrain
Transmission typeDual hydrostatic[product page]
Max forward speed7 mph[product page]
Max reverse speed3.5 mph[product page]

Tires and wheels

Cub Cadet Ultima ZT1 50 Tires and wheels
Rear wheel assembly634Z07244[parts supplement p.1]

Variants

Each SKU, model number, deck option and serial-range revision is its own variant. Values are never merged across variants.

17AIEACLA10

Ultima ZT1 50 (model 17AIEACLA10, Kawasaki FR691V)

Model numbers
17AIEACLA10
Serial note
Model page lists operator manual 769-27000A and parts/warranty supplement 769-27005A for this model number.
Engine
Kawasaki FR691V

Engine

Kawasaki FR691V is linked to variant 17AIEACLA10 because the engine model is printed on a manufacturer document for this machine. Full maintenance specs, parts and every machine using it are on the engine page.

Kawasaki FR691V key specs
Displacement726 cc[engine spec page]
Gross power (as published)23.0 hp (17.2 kW) at 3,600 RPM[engine spec page]
Oil typeAPI SF/SG/SH/SJ/SL; SAE 10W-30 and others per temperature chart[engine manual p.16]
Oil capacity with filter2.1 L (2.2 US qt)[engine manual p.14]
Spark plug gap0.75 mm (0.030 in)[engine manual p.14]

Maintenance specs and parts

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Part numbers

Cub Cadet Ultima ZT1 50 part numbers
Blade742P05094 (Ultra High-Lift, 50 in.)[parts supplement p.1]Find this part: Cub Cadet Amazon Sears PartsDirect
Blade kit490-110-F193[product page]Find this part: Cub Cadet Amazon Sears PartsDirect
Mulching blade742P05094-X[parts supplement p.1]Find this part: Cub Cadet Amazon Sears PartsDirect
Deck belt954-05078[parts supplement p.1]Find this part: Cub Cadet Amazon Sears PartsDirect
Drive (traction) belt954-04317A[parts supplement p.1]Find this part: Cub Cadet Amazon Sears PartsDirect
Oil filterKM-49065-0721[parts supplement p.2]Find this part: Cub Cadet Amazon Sears PartsDirect
Air filterKM-11013-0752[parts supplement p.2]Find this part: Cub Cadet Amazon Sears PartsDirect
Fuel filterKM-49019-0027[parts supplement p.2]Find this part: Cub Cadet Amazon Sears PartsDirect
Spark plugKM-BPR4ES[parts supplement p.2]Find this part: Cub Cadet Amazon Sears PartsDirect
Spindle618P09256[parts supplement p.1]Find this part: Cub Cadet Amazon Sears PartsDirect

Serial tag location

Serial tag location
Serial tag locationModel plate: lift the seat and look under the seat pan[manual p.1]

Manuals and sources

All links go to the manufacturer. Dates are printed dates unless marked otherwise.

Sources we could not obtain

Recalls

CPSC recalls for Cub Cadet Ultima ZT1 50

No CPSC recall found as of 2026-10-26. Search CPSC

Engine Kawasaki FR691V: 3 CPSC recalls on record, limited to listed serial, spec or model numbers (checked 2026-10-26).

A listed recall usually covers only the serial, spec or model numbers in the CPSC notice; check your machine. Try the recall lookup.

Last verified against manufacturer documents: 2026-10-27. Spotted an error? See contact.