Exmark Radius S-Series (48")
Commercial mower · Model RDS691GKA48CA3 · Commercial-duty · Gas
The Exmark Radius S-Series (48 in) is a commercial-grade gas commercial mower, built for daily commercial mowing, with a 48-inch deck and a 726cc engine making 23 hp.
Also sold as: Exmark Radius S-Series Mower (Standard)
At a glance
Engine
| Power Source | gas |
|---|---|
| Engine Make | Kawasaki FR691 |
| Displacement | 44.3 ci (726 cc) |
| Engine Power | 23 hp |
Deck
| Cutting Width | 48 in (1219 mm) |
|---|---|
| Max Cut Height | 5 in (127 mm) |
| Min Cut Height | 1.5 in (38 mm) |
Drive
| Ground Speed | 9 mph |
|---|
Dimensions
| Fuel Capacity | 7 gal (26.5 L) |
|---|
Professional use
How the Radius S-Series (48 in) 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 | 48 in |
|---|---|
| Engine make | Kawasaki FR691 |
| Engine displacement | 726 cc |
| Engine power | 23 hp |
| Transmission | not specified by manufacturer |
| Drive type | not specified by manufacturer |
| Ground speed | 9 mph |
| Cut-height range | 38 mm – 127 mm |
| Fuel capacity | 26.5 L |
| Weight | not specified by manufacturer |
| Warranty | not specified by manufacturer |
| Commercial warranty | not specified by manufacturer |
| Deck construction | not specified by manufacturer |
| Deck gauge | not specified by manufacturer |
| Spindle type | not specified by manufacturer |
| Frame construction | not specified by manufacturer |
| Anti-scalp rollers | not specified by manufacturer |
| Drive tire size | not specified by manufacturer |
| Seat type | not specified by manufacturer |
| Dealer network | not specified by manufacturer |
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 Radius S-Series (48 in).
Specs verified against the manufacturer spec sheet on Jun 6, 2026 — exmark.com.
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.
Source: Exmark (manufacturer) · archived copy