NGK 90940 IMR7F10G Laser Iridium Spark Plug for 2025-2026 Polaris Ranger XD 1500

Vehicle Fitment

• 2025-2026 Polaris Ranger XD 1500 (3-Cylinder, 1500cc, 82 kW, AWD/4WD)
• 2025-2026 Polaris Ranger XD 1500 NorthStar Edition (3-Cylinder, 1500cc, 82 kW, AWD/4WD)
• 2025-2026 Polaris Ranger XD 1500 NorthStar Edition Ultimate (3-Cylinder, 1500cc, 82 kW, AWD/4WD)
• 2025-2026 Polaris Ranger Crew XD 1500 (3-Cylinder, 1500cc, 82 kW, AWD/4WD)
• 2025-2026 Polaris Ranger Crew XD 1500 NorthStar Edition (3-Cylinder, 1500cc, 82 kW, AWD/4WD)
• 2025-2026 Polaris Ranger Crew XD 1500 NorthStar Edition Ultimate (3-Cylinder, 1500cc, 82 kW, AWD/4WD)

Fitment Notes

• NGK 90940 corresponds to service number IMR7F10G.
• NGK's application catalog identifies IMR7F10G/90940 for the Polaris Ranger XD 1500 3-cylinder 1500cc engine.
• 2026 Ranger XD 1500 applications use the same IMR7F10G spark-plug specification.
• This application is specific to the Ranger XD 1500 engine family; do not extend fitment to standard Ranger 1000/XP 1000 models.
• The spark plug is used individually in the three-cylinder engine; 3x plugs are required for a complete engine set.

Features

• NGK Laser Iridium spark plug designed for OE replacement applications.
• Fine-wire iridium center electrode provides high ignitability and durability.
• Laser-welded electrode construction supports long-term electrode integrity.
• Iridium center electrode promotes a consistent spark under demanding operating conditions.
• High-grade ceramic insulator provides strong dielectric and thermal resistance.
• 98% pure copper core promotes efficient heat transfer and conductivity.
• Trivalent Metal Plating provides corrosion resistance and anti-seizing properties.
• Integrated resistor helps suppress ignition-system electrical interference.
• Application-specific electrode configuration supports reliable combustion.
• Gasket-seat construction provides OE-style combustion-chamber sealing.
• Designed for high-temperature powersports and UTV operating environments.
• Direct-replacement dimensions eliminate the need for modification.

Specifications

• Brand: NGK
• Part Number: 90940
• Service Number: IMR7F10G
• Product Type: Laser Iridium Spark Plug
• Application: Polaris Ranger XD 1500
• Engine: 1500cc 3-Cylinder
• Engine Output: 82 kW
• Engine Type: Gasoline
• Drivetrain: AWD/4WD
• Thread Size: M10 x 1.0
• Thread Reach: 19.0 mm
• Hex Size: 16 mm
• Seat Type: Gasket
• Center Electrode Material: Iridium
• Ground Electrode Quantity: 1x
• Heat Range: NGK 7
• Gap: 1.0 mm
• Resistor: Yes
• Insulator Material: Ceramic
• Quantity: 1x Spark Plug

Included Components

• 1x NGK 90940 IMR7F10G Laser Iridium Spark Plug

Product Description

The NGK 90940, also identified as IMR7F10G, is a Laser Iridium spark plug designed for the Polaris Ranger XD 1500 three-cylinder gasoline engine. NGK's official application data identifies this plug for the 1500cc, 82 kW Ranger XD 1500 platform beginning with the 2025 model year. The fine-wire iridium center electrode is engineered to provide reliable ignition and consistent combustion in demanding UTV operating conditions.

The plug features a 1.0 mm electrode gap, gasket seat, resistor construction, and application-specific dimensions. Its iridium electrode provides high wear resistance, while the ceramic insulator helps withstand elevated combustion temperatures and electrical stress. NGK's corrosion-resistant metal plating also helps protect the shell and threads during service.

NGK 90940 is sold individually, with three spark plugs required for a complete three-cylinder Ranger XD 1500 engine. The application includes Ranger XD 1500 and Crew XD 1500 configurations, including applicable NorthStar and Ultimate editions. Verify the exact model and engine before installation.