Description
Overview:
This 51 cm replacement blade is a durable steel rotary cutting blade for walk-behind lawn mowers, giving a clean, even cut across the deck. It is a non-genuine part, made to fit selected Flymo and Rally machines, including the Flymo RL508 and Rally CH4Q20RA. The 3‐hole mounting pattern matches the original layout, so the blade locates securely on the boss for reliable drive. With a working length of 20 inches (508 mm), a width of 63 mm, a 16 mm centre hole, and 9.5 mm side holes on 48 mm centres, it provides the correct geometry for efficient cutting and discharge. Ideal for restoring performance when the original blade is worn, bent, or dull.
Key Features:
- Non Genuine Part replacement made to fit specific Flymo and Rally models
- 20 inches (508 mm) cutting length for full deck coverage
- 63 mm width for stable airflow and consistent grass lift
- 3‐hole mount: 16 mm centre hole, 9.5 mm side holes, 48 mm side-hole centres
- Durable steel construction for dependable service life
- Straightforward swap with standard hand tools for quick turnaround
- Helps restore cutting quality and reduces strain on the mower
- Suitable for regular mowing of domestic lawns and light commercial work
- Compatible with OEM references 850972 and 532 85 09-72 (see part numbers below)
Typical Applications:
Replacement blade for walk-behind rotary mowers used on home lawns, communal green spaces, and light landscaping jobs. Fit when the old blade is chipped, bent, or blunt to improve cut quality, collection, and overall mower efficiency.
Also known as:
Rotary cutting blade, lawnmower cutting blade, grass cutting blade, deck blade, replacement cutting blade.
Fits Models:
350 WALK MOWER, 350 WALK MOWER Series 3, 350WALKMOWER, CH4Q20RA, J49, JET 49, JET 50, JET 50 R, JET 50RQ, JET49, JET50, JET50R, JET50RQ, RL508, Series 3, Series3
Alternate Part Numbers:
532 85 09-72, 532850972, 850972
Product Specifications
| L&S Part No. | 350 391 |
|---|---|
| Part Type | Non Genuine Part |
| Unit of Sale | 1 |
| Size | Length: 508mm x Width: 63mm x Centre Hole Dia: 16mm x Side Hole Dia: 9.5mm x Side Hole Centres: 48mm |
| Applications | 350 WALK MOWER, 350 WALK MOWER Series 3, 350WALKMOWER, CH4Q20RA, J49, JET 49, JET 50, JET 50 R, JET 50RQ, JET49, JET50, JET50R, JET50RQ, RL508, Series 3, Series3 |
| Machine Type | Lawn Mowers |
| Fits Brands | AYP, Electrolux, Flymo, Husqvarna, Rally, Roper |
| Fits Models | J49 | JET 49 | JET 50 | JET 50 R | JET 50RQ | 350 WALK MOWER Series 3 |
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