Exmark Commercial 21 X-Series (ECX180)
Commercial mower · Model ECX180GKA21000 · Commercial-duty · Gas
$1,899 Exmark list price
Manufacturer list price only — it excludes tax, freight, dealer setup and any local discount, and dealers set the final price.
- Mows an acre in 120 min (84 at top speed) How long for your yard? ›
- How these are worked out ›
The Exmark Commercial 21 X-Series (ECX180) is a commercial-grade gas commercial mower, built for daily commercial mowing, with a 21-inch deck and a 179cc engine. It weighs 117 lb (53.1 kg).
At a glance
Compare similar mowers See how this mower compares with machines of a similar size and purpose.
Few close matches: the list also allows a wider deck range, other duty classes and discontinued models, each labelled.
Chosen by stated rules, not opinion: same class, a deck within 8 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 |
|---|---|
| Engine Make | Kawasaki FJ180V |
| Displacement | 10.9 ci (179 cc) |
Deck
| Cutting Width | 21 in (533 mm) |
|---|---|
| Max Cut Height | 4.5 in (114 mm) |
| Min Cut Height | 1 in (25 mm) |
Drive
| Ground Speed | 4.2 mph |
|---|
Dimensions
| Weight | 117 lbs (53.1 kg) |
|---|---|
| Fuel Capacity | 1 gal (3.8 L) |
Professional use
How the Commercial 21 X-Series (ECX180) 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 | 21 in |
|---|---|
| Engine make | Kawasaki FJ180V |
| Engine displacement | 179 cc |
| Ground speed | 4.2 mph |
| Cut-height range | 25 mm – 114 mm |
| Fuel capacity | 3.8 L |
| Weight | 53.1 kg |
Exmark doesn’t publish 12 of these for the Commercial 21 X-Series (ECX180): engine power, transmission, drive type, warranty, commercial warranty, deck construction, deck gauge, spindle type, frame construction, anti-scalp rollers, drive tire size, seat type.
See the Exmark commercial pro hub › · Professional buying hub ›
Similar models
Other commercial mowers with comparable specs — including other brands — that buyers cross-shop with the Commercial 21 X-Series (ECX180).
Specs verified against the retailer listing on Jun 6, 2026 — altmantractor.com.
See every mower with a Kawasaki engine ›
What the parts on this spec sheet mean
Other Exmark Commercial 21 X-Series models › 2 more in this range: Commercial 21 X-Series (ECX160), Commercial 21 X-Series (ECX180 BBC)
See all Exmark mowers and specs ›
Spot a wrong spec? Suggest a correction.
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 Exmark’s own numbers — not published by the manufacturer.
Mowing time
- ¼ acre30 min 21 min
- ½ acre1 h 42 min
- 1 acre2 h 1 h 24 min
- 2 acres4 h 1 min 2 h 48 min
About 120 min per acre at 0.5 acres/hour, mowing at 2.9 mph. The second figure is at the published 4.2 mph top speed (0.71 acres/hour) — faster than anyone really mows. About 0.5 acres per tank.
Gate & trailer fit
- 32 in gateFits
- 36 in gateFits
- 48 in gateFits
Needs at least 27 in of clearance (estimated).
Power & run time
- Run time per tank~1.0 h
Mowing times assume 0.5 acres/hour: deck width x 2.9 mph at 80% efficiency, which allows for overlap, turns and trimming. 2.9 mph is 70% of the 4.2 mph top speed Exmark publishes - almost nobody mows flat out. The "at top speed" figure is the same sum at 4.2 mph, shown so you can see it.
Fit uses the deck width plus 6 in for the discharge chute, because Exmark doesn't publish an overall width — measure before buying if a gate is tight.
Run time assumes a typical 1 gal/hour burn at working load; real consumption varies with engine, load and cut.
Exmark Commercial 21 X-Series (ECX180) questions
What size deck is on the Exmark Commercial 21 X-Series (ECX180)?
The Exmark Commercial 21 X-Series (ECX180) has a 21-inch (533 mm) cutting deck.
What engine is in the Exmark Commercial 21 X-Series (ECX180)?
The Exmark Commercial 21 X-Series (ECX180) is powered by a Kawasaki FJ180V, 179 cc. Horsepower is the manufacturer's own rating.
How much does the Exmark Commercial 21 X-Series (ECX180) weigh?
The Exmark Commercial 21 X-Series (ECX180) weighs 117 lb (53.1 kg) as specified by Exmark.
How fast is the Exmark Commercial 21 X-Series (ECX180)?
Top ground speed is 4.2 mph. With its 21-inch deck that works out to about 0.71 acres per hour at 80% efficiency — allowing for overlap, turns and trimming.
How long does the Exmark Commercial 21 X-Series (ECX180) take to mow an acre?
About 1 h 25 min per acre, from its 21-inch deck at 4.2 mph and 80% efficiency — roughly 0.71 acres an hour, so five acres is about 7 h 3 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 Exmark Commercial 21 X-Series (ECX180)?
The Exmark Commercial 21 X-Series (ECX180) holds 1 gal (3.8 L) of fuel.
How much does the Exmark Commercial 21 X-Series (ECX180) cost?
Exmark's published list price is $1,899, checked 22 October 2026. That excludes tax, freight, dealer setup and any local discount — dealers set the final price.
What is the Exmark Commercial 21 X-Series (ECX180) built for?
Commercial-duty commercial mower. Built for daily, paid commercial use.
Source: Exmark (manufacturer) · archived copy