Kingbolen IT300 – petrol fuel injector tester and cleaner
The IT300 drives a petrol injector outside the engine to check whether it is clogged, leaking or spraying unevenly, and also helps you clean it.
What the IT300 brings day to day
Compatible with Bosch, Delphi, Denso and most injectors
Custom mode: adjustable frequency and pulse width
Cleaning can help reduce fuel consumption
Two adaptor sizes supplied
Ready to take the next step?
Check today’s price and delivery time for the Kingbolen IT300.
Real-life uses
Who is it for?
A good choice if…
You maintain a petrol engine and want to test or clean the injectors yourself.
Check before you buy
For petrol engines only, not diesel. Powered by a 12 V battery or a 12 V adaptor.
Technical specifications
| Engines | Petrol (port and direct injection) |
|---|---|
| Modes | Single, short, long, continuous, custom |
| Frequency | 1–50 Hz |
| Power | 12 V battery or adaptor |
| Accessories | 2 adaptor sizes |
Frequently asked questions
Does it work on a diesel?
No, on petrol engines only.
How is it powered?
From a 12 V battery or a 12 V adaptor.
Can it clean injectors?
Yes, the cleaning kit comes with two adaptors.
The Kingbolen IT300 price changes often
Deals, stock and delivery times change daily: check today’s offer in one click before it moves.













