Kubota V1505 Diesel
Kubota's 4-cylinder small diesel — the smoothest engine in the lineup
The story of this engine
The V1505 is Kubota's 4-cylinder small diesel and the engine fitted to the F3890 commercial front-mount and ZD1511 zero-turn. Where the 3-cylinder D902 vibrates audibly at low revs, the V1505 idles like a small car engine. The smoothness alone makes this the engine pros pick when they spend 8 hours a day on the seat.
Why owners like it
- 4-cylinder smoothness eliminates the 3-cylinder rumble — significantly less operator fatigue
- 10,000-hour service horizon is realistic on properly serviced units
- Highest torque-to-displacement of any Kubota small diesel
- Same parts continuity as the D902 family via Kubota dealers
Where it falls short
- Council-and-contractor money — only specified on the most expensive Kubota mowers
- Heavier than the D902 by 30kg — host machine builds around it
- Same DPF complexity as the D902 on post-2018 emissions units
- Service intervals more expensive (4 of everything instead of 3)
Service intervals & costs
What this engine actually needs every year, and what it costs to keep alive.
| Interval | Task | Cost |
|---|---|---|
| Every 100 hours | Engine oil change — 15W-40 | £22 DIY / £110 dealer |
| Every 100 hours | Oil filter | £18 OEM |
| Every 200 hours | Fuel filter | £28 OEM |
| Every 200 hours | Air filter element | £45 OEM |
| Every 1000 hours | Injector inspection | £220 dealer |
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 | £18 | £9 |
| Fuel filter | £28 | £14 |
| Air filter element | £45 | £22 |
| Replacement engine (used 4000hr) | £3500 | — |
The engine for owners who actually mow 8 hours a day. The smoothness vs the D902 is genuinely worth the price for any operator spending more than 1000 hours a year on the machine. For everyone else, the D902 does the same essential job for £3000 less in the host mower.
Mowers in our catalogue with this engine (2)
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