Compare Mowers
Prices are the recommended retail prices published by each manufacturer’s Australian site, in AUD, as read on the date shown on each model’s page; dealers set the final price.
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.
- Kubota F3690 — commercial: daily paid use and high acreage
- John Deere Z994R DieselZTrak Zero-Turn Mower — commercial: daily paid use and high acreage; 72-inch deck
What’s different? The 5 differences that matter most, from the published figures.
- F3690 has a 36 hp engine; Z994R DieselZTrak Zero-Turn Mower has a 24.7 hp engine, a 11.3 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.
- F3690 holds 61 L (16.1 gal) of fuel; Z994R DieselZTrak Zero-Turn Mower holds 43.5 L (11.5 gal) of fuel, a 17.5 L 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.
- F3690 has a 1,498 cc (91.4 ci) engine; Z994R DieselZTrak Zero-Turn Mower has a 1,266.7 cc (77.3 ci) engine, a 231.3 cc difference. Displacement is the engine's size, not its output. A larger engine is not necessarily a more powerful one.
- F3690 has a published top speed of 12.4 mph; Z994R DieselZTrak Zero-Turn Mower has a published top speed of 11.4 mph, a 1 mph difference. Top speed is the maker's maximum in transport. Mowing speed is lower and depends on grass, terrain and the deck.
- F3690 weighs 765 kg (1,687 lbs); Z994R DieselZTrak Zero-Turn Mower weighs 821 kg (1,810 lbs), a 56 kg difference. Operating weight bears on trailer payload, ramps and soft turf. On its own it says nothing about build quality. What F3690's weight means for a trailer ›
what isn’t comparable
Not comparable
- Cutting Width: not published for F3690.
- Bagger Capacity: not published for Z994R DieselZTrak Zero-Turn Mower.
- Engine Make: not published for Z994R DieselZTrak Zero-Turn Mower.
- Deck Construction: not published for F3690.
- Drive System: not published for Z994R DieselZTrak Zero-Turn Mower.
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 | F3690 Kubota · Commercial |
Z994R DieselZTrak Zero-Turn Mower John Deere · Commercial |
|---|---|---|
| RRP (AUD) | dealer quote | dealer quote |
| Engine | ||
| Power Source | diesel | diesel |
| Engine Make | Kubota V1505 | — |
| Displacement | 91.4 ci (1498 cc) | 77.3 ci (1266.7 cc) |
| Engine Power | 36 hp | 24.7 hp |
| Cylinders | 4 | 3 |
| Engine Model | — | 3TNV80F |
| Fuel Type | Diesel | Diesel or Biodiesel (up to B20) |
| Deck | ||
| Cutting Width | — | 72 in (1829 mm) |
| Deck Construction | — | 7-Iron™ PRO: 7-gauge, 0.179-in. (4.6-mm) one-piece forged steel FastBack™ PRO: 7-gauge, 0.179-in. (4.6-mm) fabricated steel |
| Drive | ||
| Transmission | HST | Dual hydrostatic wheel drive TuffTorq heavy-duty ground drive with cross porting for improved cooling |
| Ground Speed | 12.4 mph | 11.4 mph |
| Drive Tire Size | 18×9.5-8 | — |
| Reverse Speed | 6.8 mph | — |
| Drive System | 4WD | — |
| Dimensions | ||
| Weight | 1687 lbs (765 kg) | 1810 lbs (821 kg) |
| Fuel Capacity | 16.1 gal (61 L) | 11.5 gal (43.5 L) |
| Length | 96.5 in (2450 mm) | — |
| Width | 53.9 in (1370 mm) | — |
| Height | 78.1 in (1985 mm) | — |
| General | ||
| Bagger Capacity | 11.4 bu (400 L) | — |
Where these models differ, explained
Z994R DieselZTrak Zero-Turn Mower: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — deere.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.