Briggs & Stratton Intek (single & V-twin)
The same engine John Deere bolts on at twice the price
The story of this engine
Briggs Intek comes in two flavours: a single-cylinder OHV (344-500cc, 11-17.5HP) for entry consumer ride-ons, and a V-twin (656-724cc, 17-25HP) for premium ones. The V-twin 7180 is the engine inside the Murray MX175-107, the Cub Cadet XT2 and many John Deere E-series tractors. Briggs sells the same block to anyone who wants it, so it sits under wildly different deck colours and price tags. The single is fine for typical UK domestic lawns; the V-twin is the obvious upgrade for half-acre-plus.
Why owners like it
- Smoother running than any single-cylinder ride-on engine
- Same parts work across Murray, John Deere, Cub Cadet — wide aftermarket support
- 1,500-hour service life is realistic for domestic owners (25+ years of weekend use)
- Self-cleaning rotating air screen reduces filter changes
Where it falls short
- Splash lubrication (not pressurised) — needs oil checked every 5 hours
- Flywheel key shears if the deck ingests a rock — symptom: cranks but no spark
- Pricier service parts than a single-cylinder Intek
Service intervals & costs
What this engine actually needs every year, and what it costs to keep alive.
| Interval | Task | Cost |
|---|---|---|
| Every 50 hours | Oil change — SAE 30 or 5W-30 synthetic | £18 DIY / £85 dealer |
| Every 100 hours | Air filter + pre-cleaner | £28 |
| Every 100 hours | Spark plugs (×2, RC12YC equivalent) | £12 DIY |
| Every 200 hours | Valve adjust both heads | £0 DIY / £120 dealer |
| Every 400 hours | Fuel filter + fuel pump check | £18 parts |
What goes wrong, and when
Every engine family has predictable failures by age. Knowing what's coming saves money on used buys and makes negotiation easier.
Parts cost reference
UK 2026 prices — OEM (genuine) vs aftermarket. Generic parts work fine on consumables; stick to OEM on anything that affects timing or tolerance.
| Part | OEM | Aftermarket |
|---|---|---|
| Oil filter | £12 | £5 |
| Air filter + pre-cleaner | £28 | £14 |
| Spark plugs (pair) | £12 | £6 |
| Carb service kit | £35 | £18 |
| Flywheel key | £8 | £3 |
| Replacement short-block | £400 | £250 (used breaker) |
The Intek V-twin is the engine you should look for on a used ride-on. Skip Intek single-cylinder if you can stretch the budget — the V-twin will outlast it by 50% and runs noticeably smoother.
Mowers in our catalogue with this engine (2)
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