SP46
"Britain's best-selling self-propelled petrol"
RRP New
£329
Manufacturer
Buy Now
£279
Lowest UK retailer
Used Avg
£140
Facebook / eBay UK avg
★ 4.3 (1,240) · Value 8.6/10
Full SP46 review →
HP46
"Push-only petrol — simple and cheap"
RRP New
£229
Manufacturer
Buy Now
£179
Lowest UK retailer
Used Avg
£85
Facebook / eBay UK avg
★ 4.2 (980) · Value 8/10
Full HP46 review →
Verdict — which one to buy
Our take
The push-only HP46 has the same engine and deck as the SP46 — just no self-propel. If you have a flat lawn and decent fitness, the HP46 saves £100 new and £50 used, with one fewer wear part (the drive cable). Smart choice for under 600m² flat lawns.
Spec-by-spec
| Mountfield SP46 | Mountfield HP46 | |
|---|---|---|
| RRP | £329 | £229 |
| Buy now | £279 | £179 |
| Used avg | £140 | £85 |
| Type | Petrol | Petrol |
| Engine / Power | Stiga ST120 OHV 123cc | Stiga ST120 123cc |
| Cut width | 46 cm | 46 cm |
| Weight | 27 kg | 24 kg |
| Self-propelled | Yes | No |
| Rear roller (stripes) | No | No |
| Mulching | Yes | Yes |
| Bag capacity | 55 L | 55 L |
| Suited to lawn | Medium | Small |
| Noise | 95 dB | 95 dB |
| Rating | 4.3 / 5 | 4.2 / 5 |
| Value score | 8.6 / 10 | 8 / 10 |
Pros & cons of each
Pros
- Best-value self-propelled petrol on the UK market
- Stiga engine is reliable and parts are everywhere
- Light at 27kg — easy to push and store
- Huge used supply keeps prices low
Cons
- Plastic deck not as durable as steel
- Cable-operated drive less smooth than Honda
- Rear flap hinge a known weak point
Pros
- Same Stiga engine as the SP46 for less money
- Push-only means fewer cables and parts to fail
- Light enough for an average user
- Massive used supply
Cons
- Push-only is tiring on big lawns
- No rear roller
- Plastic wheels wear out
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