Compare Mowers
List prices are the manufacturer’s published figures, re-checked daily; they exclude tax, freight and dealer setup.
A side-by-side reference of each model's stated specifications. MowerFacts doesn’t give opinions: where a published, spec-derived rule can separate machines we mark a Data Pick and show the rule; here, read the values and decide what fits your needs.
Best suited for
What each model is built for, from its duty class and key specs. This is a neutral reference — MowerFacts does not rank one model above another.
- Exmark Quest E-Series (50 in) — commercial: daily paid use and high acreage; 50-inch deck; gas powered
- Gravely ZT X 48 KAWASAKI — commercial: daily paid use and high acreage; 48-inch deck; gas powered
What’s different? The 5 differences that matter most, from the published figures.
- Quest E-Series (50 in) lists at $3,799; ZT X 48 KAWASAKI lists at $4,499, a $700 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
- Quest E-Series (50 in) weighs 576 lbs (261.3 kg); ZT X 48 KAWASAKI weighs 679 lbs (308 kg), a 103 lbs difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What Quest E-Series (50 in)'s weight means for a trailer ›
- Quest E-Series (50 in) holds 3 gal (11.4 L) of fuel; ZT X 48 KAWASAKI holds 3.5 gal (13.2 L) of fuel, a 0.5 gal difference. Tank size bounds how long a machine runs between stops. Consumption varies with engine, load and speed, so hours per tank are not fixed.
- Quest E-Series (50 in) has a 50 in (1,270 mm) deck; ZT X 48 KAWASAKI has a 48 in (1,219 mm) deck, a 2 in difference. Deck width sets how much grass each pass covers. Mowing time also depends on ground speed, turns and obstacles, so a wider deck alone does not fix the job's length. Time both decks on your own lawn ›
- Quest E-Series (50 in) has a 22 hp engine; ZT X 48 KAWASAKI has a 21.5 hp engine, a 0.5 hp difference. Published horsepower is the maker's rating at a stated engine speed. It is a different measure from displacement, and two engines of equal rating can pull differently.
what isn’t comparable
Not comparable
- Displacement: not published for Quest E-Series (50 in).
- Engine Make: not published for Quest E-Series (50 in).
- Fuel Type: not published for Quest E-Series (50 in).
- Deck Material: not published for Quest E-Series (50 in).
- Deck Construction: not published for Quest E-Series (50 in).
- Drive System: not published for Quest E-Series (50 in).
- Discharge: not published for Quest E-Series (50 in).
Verified means each manufacturer publishes the figure. A bigger number is only a bigger number; nothing here says which machine is better. The full specification table is below.
Which is faster on your property? › Measure your lawn once and MowerFacts times all 2 against it.
| Spec | Quest E-Series (50 in) Exmark · Zero-Turn |
ZT X 48 KAWASAKI Gravely · Zero-Turn |
|---|---|---|
| List price | $3,799 | $4,499 |
| Engine | ||
| Power Source | gas | gas |
| Displacement | — | 44.3 ci (726 cc) |
| Engine Power | 22 hp | 21.5 hp |
| Engine Make | — | Kawasaki® |
| Fuel Type | — | Gas |
| Engine Model | — | FR651V |
| Deck | ||
| Cutting Width | 50 in (1270 mm) | 48 in (1219 mm) |
| Min Cut Height | 1.5 in (38 mm) | 1.5 in (38 mm) |
| Max Cut Height | 4.5 in (114 mm) | 4.5 in (114 mm) |
| Deck Material | — | Fabricated X-Factor® |
| Deck Construction | — | Fabricated X-Factor® |
| Deck Gauge | — | 11 |
| Discharge | — | Side |
| Drive | ||
| Ground Speed | 7 mph | 7 mph |
| Drive System | — | Hydro-Gear® Serviceable EZT® Transaxles |
| Reverse Speed | — | 3 mph |
| Dimensions | ||
| Weight | 576 lbs (261.3 kg) | 679 lbs (308 kg) |
| Fuel Capacity | 3 gal (11.4 L) | 3.5 gal (13.2 L) |
Where these models differ, explained
Quest E-Series (50 in): Specs verified against the manufacturer spec sheet on Jun 6, 2026 — manualslib.com.
ZT X 48 KAWASAKI: Specs verified against the retailer listing on Jun 6, 2026 — gravely.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.