Sierra Engine Ignition Analyzer | 18-9903
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Engine Ignition Analyzer
Engine Ignition Analyzer
For Diagnosis and Performance Measurement of all types of spark ignition systems
- Display waveforms in real time
- Graph burn time, spark plug voltage, dwell/ramp time, and RPM for each spark
- Compare readings between cylinders with a candlestick graph that displays maximum, minimum, and average for each cylinder
- Displays everything on a 3.5" color screen
- Rechargeable battery provides 6+ hours of use
- Durable design (MIL-STD-810) drop test approved
- Comes with hard shell carrying case
- Includes 18-9914 Plug Wire Sensor Clip and Extension Lead
- Brand: Sierra
- Manufacturer part #: 18-9903
- Sold as: EA
Parts Desk Insight
Use the appropriate sensor and ignition-system settings when comparing cylinders. A waveform is diagnostic evidence, not by itself a reason to replace an ignition component.
Shipping information
In-stock and OEM parts: ship same or next business day.
Available items are ready for pickup or shipping between one and three days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.