Denso 3500 Spark Plug

Denso Iridium Long Life Spark Plug

The Denso 3500 Iridium Long Life (SIP) spark plug is built for OE-level ignition performance, durability, and emissions control. It is a direct-fit secondary ignition component for select Honda, Jaguar, and Land Rover applications, including Honda Accord, Honda Fit, Jaguar F-Pace, and Land Rover Defender 110.

The Iridium Long Life line focuses on stable ignition performance with a fine-wire iridium center electrode, platinum needle ground tip, and OE-style dimensions for the listed applications. Denso 3500 is engineered to match factory specifications where precise heat range, reach, thread size, and seat type matter.

Key Features

• Iridium center electrode tip material for consistent spark performance
• Platinum needle ground electrode tip design with needle-to-needle configuration
• 5000 ohm resistance for OE-style ignition system operation
• Copper core center electrode and nickel ground electrode core materials
• Pre-gapped to 1.1 mm for the specified applications
• Flat seat design, 12.00 mm thread diameter, and 26.50 mm reach
• Manufacturer heat range 22 for OE-matched thermal control
• Cross-references DENSO Auto Parts DXE22HCR11S for the same application

Product Line Details

Denso Iridium Long Life (SIP) spark plugs are positioned for drivers who want OE-style fitment and long service life in modern ignition systems. The design combines an iridium firing tip with a platinum ground strap to support reliable combustion characteristics in applications such as Jaguar XF, Jaguar XJ, Land Rover Range Rover Sport, and Honda Accord.

Vehicle Fitment

• Fits 2023 Jaguar F-Pace, N/A
• Fits 2021 Jaguar F-Pace, N/A
• Fits 2022 Jaguar F-Pace, N/A
• Fits 2017-2020 Jaguar F-Pace, N/A
• Fits 2017-2022 Jaguar F-Type, N/A
• Fits 2023 Land Rover Defender 110, N/A
• Fits 2022 Land Rover Defender 110, N/A
• Fits 2023 Land Rover Defender 90, N/A
• Fits 2022 Land Rover Defender 90, N/A
• Fits 2022 Land Rover Discovery, N/A
• Fits 2017-2020 Land Rover Discovery, N/A
• Fits 2017-2022 Land Rover Range Rover, N/A
• Fits 2017-2022 Land Rover Range Rover Sport, N/A
• Fits 2018-2022 Land Rover Range Rover Velar, N/A
• Fits 2014-2016 Land Rover LR4, N/A
• Fits 2014-2016 Land Rover Range Rover, N/A
• Fits 2014-2016 Land Rover Range Rover Sport, N/A
• Fits 2017-2020 Jaguar XF, N/A
• Fits 2015-2016 Jaguar XF, N/A
• Fits 2017-2019 Jaguar XE, N/A
• Fits 2017-2019 Jaguar XJ, N/A
• Fits 2015-2016 Jaguar XJ, N/A
• Fits 2017 Honda Accord, N/A
• Fits 2014-2015 Honda Accord, N/A
• Fits 2017-2020 Honda Fit, N/A
• Fits 2014-2016 Honda Fit, N/A

Common Replacement Uses

• Restores weak or inconsistent spark output
• Addresses rough idle caused by worn ignition electrodes
• Helps correct misfire-related drivability concerns
• Supports maintenance intervals when factory plugs are due for replacement
• Replaces OE-style plugs specified for the listed Jaguar, Land Rover, and Honda applications

Installation Notes and Tips

Verify engine application, thread diameter, reach, seat type, and heat range before installation. Use the listed pre-gap specification as a reference and confirm gap condition during service. For best results, install on a cool engine and follow the vehicle manufacturer’s torque specification for spark plugs.

Quality Assurance

Denso manufactures this spark plug to OE performance, durability, and emissions standards for the specified applications. The Denso 3500 is built to match factory-style ignition requirements in compatible Honda Accord and Honda Fit, as well as Jaguar and Land Rover models listed above.