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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.

  • Grasshopper 400D — commercial: daily paid use and high acreage; 61-inch deck
  • Grasshopper 900D 1.3L — commercial: daily paid use and high acreage; 61-inch deck
What’s different? The 2 differences that matter most, from the published figures.
  1. 400D holds 12 gal (45.4 L) of fuel; 900D 1.3L holds 8 gal (30.3 L) of fuel, a 4 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.
  2. 400D lists at $20,460; 900D 1.3L lists at $23,895, a $3,435 difference. List price is the maker's own figure before tax, freight and dealer setup. Dealers set the final price.
what isn’t comparable

Not comparable

  • Engine Power: not published for 400D.
  • Displacement: not published for 400D.
  • Weight: not published for 400D.
  • Ground Speed: not published for 400D.
  • Deck Material: not published for 400D.

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.

Add another (2 more fit): every zero-turn mower · more Grasshopper
Side-by-side specifications: Grasshopper 400D vs Grasshopper 900D 1.3L
Spec 400D
Grasshopper · Zero-Turn
900D 1.3L
Grasshopper · Zero-Turn
List price $20,460$23,895
Engine
Power Source diesel diesel
Displacement — 77 ci (1261.8 cc)
Engine Power — 24 hp
Engine Make Kubota Kubota
Fuel Type Diesel Diesel
Cylinders 3 3
Deck
Cutting Width 61 in (1549 mm) 61 in (1549 mm)
Deck Material — Formed double thickness hardened steel
Deck Gauge — 7
Drive
Transmission G3 Hydrostatic Transmission G3 Hydrostatic Transmission
Ground Speed — 11 mph
Dimensions
Weight — 1595 lbs (723.5 kg)
Fuel Capacity 12 gal (45.4 L) 8 gal (30.3 L)
Length — 112.5 in (2858 mm)
Width — 54.5 in (1384 mm)
Height — 69.5 in (1765 mm)

400D: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — grasshoppermower.com.

900D 1.3L: Specs verified against the manufacturer spec sheet on Jun 6, 2026 — grasshoppermower.com.

Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.

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