Grasshopper 623T
Zero-Turn mower · Model 623T · Commercial-duty · Gas
$15,870 Grasshopper list price
Manufacturer list price only — it excludes tax, freight, dealer setup and any local discount, and dealers set the final price.
- Weighs 1,040 lb
- On a 6×12 trailer 1,940 lb towed, single-axle 3,500 lb
- Mows an acre in 26 min (18 at top speed) How long for your yard? ›
- How these are worked out ›
The Grasshopper 623T is a commercial-grade gas zero-turn mower, built for daily commercial mowing, with a 48-inch deck and a 694cc engine. It weighs 1039.9 lb (471.7 kg).
At a glance
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
Chosen by stated rules, not opinion: same class, a deck within 6 in of this one, the same kind of power and a compatible duty class, then the closest power, weight and price, with other makers preferred. Figures are the manufacturers’ published ones; nothing is estimated.
Engine
| Power Source | gas |
|---|---|
| Displacement | 42.4 ci (694 cc) |
| Engine Make | Rehlko |
| Cylinders | 2 |
| Fuel Type | Gasoline |
Deck
| Cutting Width | 48 in (1219 mm) |
|---|
Drive
| Transmission | T-Drive Transmission |
|---|---|
| Ground Speed | 8.5 mph |
| Reverse Speed | 5.5 mph |
Dimensions
| Weight | 1040 lbs (471.7 kg) |
|---|---|
| Fuel Capacity | 4 gal (15.1 L) |
| Length | 99 in (2515 mm) |
| Width | 47 in (1194 mm) |
Professional use
How the 623T fits commercial and high-acreage work, from the specs we have. Duty class: Commercial.
Productivity computed from deck width and ground speed. Compare on the calculator ›
| Deck width | 48 in |
|---|---|
| Engine make | Rehlko |
| Engine displacement | 694 cc |
| Transmission | T-Drive Transmission |
| Ground speed | 8.5 mph |
| Fuel capacity | 15.1 L |
| Weight | 471.7 kg |
Grasshopper doesn’t publish 12 of these for the 623T: engine power, drive type, cut-height range, warranty, commercial warranty, deck construction, deck gauge, spindle type, frame construction, anti-scalp rollers, drive tire size, seat type.
See the Grasshopper commercial pro hub › · Professional buying hub ›
Similar models
Other zero-turn mowers with comparable specs — including other brands — that buyers cross-shop with the 623T.
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — grasshoppermower.com.
See every mower with a Rehlko engine ›
Other Grasshopper 600 Series models › 2 more in this range: LED Work Lights, Wide-Stance Single-Fork Tail Wheel
See all Grasshopper mowers and specs ›
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Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
What the specs work out to
Figures MowerFacts computes from Grasshopper’s own numbers — not published by the manufacturer.
Mowing time
- ¼ acre6 min 5 min
- ½ acre13 min 9 min
- 1 acre26 min 18 min
- 2 acres52 min 36 min
- 5 acres2 h 10 min 1 h 31 min
- 10 acres4 h 20 min 3 h 2 min
About 26 min per acre at 2.31 acres/hour, mowing at 5.9 mph. The second figure is at the published 8.5 mph top speed (3.3 acres/hour) — faster than anyone really mows. About 9.2 acres per tank.
Weight & hauling
- Machine weight1,040 lb
- + 6×12 trailer900 lb
- Towed weight1,940 lb
- single-axle 3,500 lbCarries it, 1,560 lb spare
- tandem-axle 7,000 lbCarries it, 5,060 lb spare
Needs a single-axle 3,500 lb trailer and a vehicle rated to tow at least 1,940 lb.
Gate & trailer fit
- 32 in gateToo wide
- 36 in gateToo wide
- 48 in gateFits
Needs at least 48 in of clearance.
Power & run time
- Run time per tank~4.0 h
Mowing times assume 2.31 acres/hour: deck width x 5.9 mph at 80% efficiency, which allows for overlap, turns and trimming. 5.9 mph is 70% of the 8.5 mph top speed Grasshopper publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 8.5 mph, shown so you can see it.
Fit uses Grasshopper's published overall width.
Towed weight adds a 900 lb allowance for a 6x12 open utility trailer to Grasshopper's published machine weight. Your trailer's own weight is on its VIN plate. Tongue weight, axle placement and your vehicle's tow rating are still yours to check — this is the load, not a loading plan.
Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.
Grasshopper 623T questions
What size deck is on the Grasshopper 623T?
The Grasshopper 623T has a 48-inch (1219 mm) cutting deck.
What engine is in the Grasshopper 623T?
The Grasshopper 623T is powered by a Rehlko, 694 cc. Horsepower is the manufacturer's own rating.
How much does the Grasshopper 623T weigh?
The Grasshopper 623T weighs 1,040 lb (471.7 kg) as specified by Grasshopper.
What size trailer do I need for the Grasshopper 623T?
At 1,040 lb, the Grasshopper 623T on a typical 6x12 open utility trailer (about 900 lb empty) is roughly 1,940 lb of towed weight. That is within a single-axle 3,500 lb trailer, and your tow vehicle needs to be rated for at least 1,940 lb. Tongue weight, axle placement and your own trailer's empty weight still have to be checked — this is the arithmetic, not a loading plan.
How fast is the Grasshopper 623T?
Top ground speed is 8.5 mph. With its 48-inch deck that works out to about 3.3 acres per hour at 80% efficiency — allowing for overlap, turns and trimming.
How long does the Grasshopper 623T take to mow an acre?
About 18 min per acre, from its 48-inch deck at 8.5 mph and 80% efficiency — roughly 3.3 acres an hour, so five acres is about 1 h 31 min. Rough or obstacle-heavy ground takes longer; this is deck width times ground speed, not a timed test.
How big is the fuel tank on the Grasshopper 623T?
The Grasshopper 623T holds 4 gal (15.1 L) of fuel.
How much does the Grasshopper 623T cost?
Grasshopper's published list price is $15,870, checked 23 October 2026. That excludes tax, freight, dealer setup and any local discount — dealers set the final price.
What is the Grasshopper 623T built for?
Commercial-duty zero-turn mower. Built for daily, paid commercial use.
Source: Grasshopper (manufacturer) · archived copy