Cox 20" LawnMaster Cylinder Mower
Push / Walk-Behind mower · Model LM20CM · Residential-duty · Gas
A$4,299 Cox Australia RRP (inc. GST)
Sold in Australia — listed on coxmowers.com.au, checked 13 Oct 2026.
Dealers set the final price; delivery, assembly and any local offer are extra and are not tracked here.
The Cox 20 in LawnMaster Cylinder Mower is a residential-grade gas walk-behind mower, suited to small-to-mid home lawns, with a 20-inch deck and a 127cc engine making 3.5 hp. It weighs 198.4 lb (90 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 2 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 | 7.8 ci (127 cc) |
| Engine Power | 3.5 hp |
| Engine Make | Briggs & Stratton |
| Engine Model | Briggs & Stratton XR550 127cc (3.5HP) |
Deck
| Cutting Width | 20 in (508 mm) |
|---|---|
| Min Cut Height | 0.2 in (6 mm) |
| Max Cut Height | 1.2 in (30 mm) |
Dimensions
| Weight | 198 lbs (90 kg) |
|---|---|
| Width | 20 in (508 mm) |
Similar models
Other push / walk-behind mowers with comparable specs — including other brands — that buyers cross-shop with the 20 in LawnMaster Cylinder Mower.
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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 Cox’s own numbers — not published by the manufacturer.
Gate & trailer fit
- 32 in gateFits
- 36 in gateFits
- 48 in gateFits
Needs at least 20 in of clearance.
Power & run time
- Power per deck inch0.175 hp/in
Fit uses Cox's published overall width.
Source: Cox (manufacturer) · archived copy