Advance Timing Light #3555a

The Innova 3555 features an advance dial that enables the user to check base timing and adjust advance or retard for mechanical and electronic applications. Works with most ignition systems: DIS, conventional, electronic and computer-controlled systems - domestic and imports.

Free shipping | 1-Year Warranty


This product can expose you to chemicals including DiNP, which is known to the State of California to cause cancer.
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Advance Analog Dial:

Check base timing, mechanical advance or retard, and electronic advance or retard.

Slim, Rotating Barrel:

Allows for easier and better aiming at the timing mark.

Detachable Leads:

Make replacements and storage easy.

Patented Skip Circuitry Test:

Tests up to 9,990 RPM.

Built-in Hand Guard:

Protection from moving parts in the engine bay.

Need more help?
Inductive Pickup



What do I do if my timing light does not flash?
Make sure the upper and lower ferrite cores of the inductive pickup clip are clean. Also, make sure the inductive pickup clamp is properly connected to the No. 1 spark plug cable.
Your timing light may be used on vehicles with 6-volt electrical systems by using the following connection procedure: 12-volt automotive battery required.
1. Connect the RED battery clip to the positive (+) terminal of a 12-volt battery.
2. Connect the BLACK battery clip to the negative (-) terminal of a 12-volt battery.
3. Using a length of 18AWG jumper wire, ground the negative (-) terminal of the 12-volt battery to a known-good ground on the vehicle under test.
No. The 3555 Timing light does not support 2 cycle/stroke engines. Our 5568 timing light will work on 2 cycle/stroke engines.
No. Our timing light will only work on 12V negative ground system. Some pre-1960’s vehicles used positive ground systems. Check service manuals for the correct ground systems.

No, unfortunately not. Our timing lights will only work on conventional breaker point, electronic ignition systems, or with DIS (distributorless ignition systems). 

Consult the vehicle's service manual for procedures and specifications.

You can download a copy of the Product User Manual from our website: 

Place the RED lead onto the positive (+) side of the battery. Place the BLACK lead onto the negative (-) side of the battery, or the chassis of the vehicle.
Make sure the battery clips are firmly connected to the battery terminals. Make sure the battery clip polarity is correct (red battery clip is connected to the positive (+) battery terminal, black battery clip is connected to the negative (–) battery terminal).