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Compare Mowers
Key differences: SFC-21 has less weight, a narrower cutting deck, a lower top speed and a smaller fuel tank. SW Belt-Drive has more weight, a wider cutting deck, a higher top speed and a larger fuel tank.
Objective comparison of stated specs — not a recommendation.
How to read the labels
- larger / more / wider / faster — this mower has the higher value for that spec.
- smaller / less / lighter / slower — this mower has the lower value.
- Labels are directional only; whether more is desirable depends on your needs.
- Note: a lower deck-gauge number means thicker steel, so for Deck Gauge a smaller number is the more durable deck.
| Spec | SFC-21 Scag · Push / Walk-Behind |
SW Belt-Drive Scag · Push / Walk-Behind |
|---|---|---|
| Engine | ||
| Power Source | gas | gas |
| Displacement | 9.9 ci (163 cc) | — |
| Cylinders | 1 | — |
| Engine Make | Honda | Kawasaki® FS Series |
| Deck | ||
| Cutting Width | 21 in (533 mm) narrower | 32 in (813 mm) wider |
| Min Cut Height | 1.5 in (38 mm) | 1.7 in (44 mm) |
| Max Cut Height | 4.5 in (114 mm) | 4.5 in (114 mm) |
| Deck Construction | 14 gauge deck with 14-gauge replaceable guards for strength and longevity. Deep draw stamped. | Dual-plate cutter deck constructed of 2 steel plates. Reinforcement plate at cutter deck spindles. |
| Drive | ||
| Transmission | GT MG 512 transmission, 3-speed | — |
| Reverse Speed | — | 2 mph |
| Drive System | — | Belt Drive with 5-Speed Peerless Transmission |
| Ground Speed | 4.2 mph slower | 6 mph faster |
| Dimensions | ||
| Weight | 136 lbs (61.7 kg) lighter | 450 lbs (204.1 kg) heavier |
| Fuel Capacity | 0.4 gal (1.4 L) less fuel | 5.5 gal (20.8 L) more fuel |
Independent reference database. Specs compiled from manufacturer sources and normalized for comparison; verify with the manufacturer or dealer before purchase.