Description
Suzuki 09482-00642 NGK ILZKR7D8 Iridium Spark Plug for DF300B and DF350A Outboards
The Suzuki 09482-00642 spark plug is a genuine Suzuki replacement spark plug for select high-horsepower Suzuki outboard motors. This listing is for the NGK ILZKR7D8 iridium spark plug used during routine ignition service on compatible Suzuki 300-350 HP outboards.
Spark plugs are regular maintenance parts. Replacing worn, fouled, or damaged plugs with the correct Suzuki-specified plug helps support reliable starting, smooth idle quality, and consistent ignition performance.
Applications
- Make: Suzuki
- Engine style: Outboard
- Horsepower range: 300-350 HP
- Common applications: DF300B and DF350A Suzuki outboards where 09482-00642 / NGK ILZKR7D8 is specified
- Service use: Routine spark plug replacement
Key Details
- Suzuki part number: 09482-00642
- NGK plug code: ILZKR7D8
- Product type: Spark Plug
- Specifics: Iridium Spark Plugs
- Sold as: One spark plug
What This Spark Plug Replaces
Use Suzuki 09482-00642 when your Suzuki service information calls for an NGK ILZKR7D8 spark plug. This plug is intended for Suzuki marine outboard maintenance and should be matched by part number, plug code, engine model, and model year before installation.
When to Replace Spark Plugs
Spark plugs should be inspected and replaced according to your Suzuki maintenance schedule. Common signs that plugs may need service include hard starting, rough idle, weak acceleration, misfire, fouling, or visible electrode wear.
Installation Notes
- Confirm the correct spark plug gap before installation.
- Check your Suzuki owner’s manual, service manual, or emissions/control decal for the proper specification.
- Install using the correct torque specification for your engine.
- For multi-cylinder engines, many owners replace all spark plugs together during scheduled service.
Frequently Asked Questions
What does Suzuki 09482-00642 fit?
Suzuki 09482-00642 is used on select Suzuki 300-350 HP outboard applications, including DF300B and DF350A models where the service information calls for NGK ILZKR7D8.
What is the NGK spark plug number?
The NGK plug code for Suzuki 09482-00642 is ILZKR7D8.
Is this an iridium spark plug?
Yes. This listing is for an NGK ILZKR7D8 iridium spark plug.
Is this listing for one spark plug?
Yes. This product is sold individually as one spark plug.
Should I replace all plugs at once?
For multi-cylinder engines, replacing the full set during scheduled maintenance is often the best practice. Confirm quantity needed for your exact engine.
Should I check the gap before installing it?
Yes. Always verify the correct spark plug gap and service interval using your Suzuki service information before installation.
Fitment Reminder
Please verify fitment by Suzuki part number, NGK plug code, engine model, model year, and service information before ordering. If your manual or parts diagram calls for a different part number, use that part number instead.