NGK ILZKR7D8 Laser Iridium Spark Plugs - 96412

NGK ILZKR7D8 Laser Iridium Spark Plugs - 96412

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Part Number: 41-ILZKR7D8

NGK ILZKR7D8 Laser Iridium Spark Plug – 96412

The NGK ILZKR7D8 Laser Iridium Spark Plug, stock number 96412, is a premium ignition component designed for select Suzuki high-horsepower four-stroke outboards. Engineered for the demanding combustion requirements of Suzuki's 4.4L V6 dual-prop engine family, this plug combines an iridium center electrode with a platinum-tipped ground electrode for dependable ignition, excellent durability, and long service life.

NGK Laser Iridium technology is designed to maintain a precise firing surface over extended operating intervals. The fine-wire electrode promotes reliable ignition of the air-fuel mixture, helping support smooth starting, consistent idle quality, responsive acceleration, and efficient combustion. Its resistor construction also helps suppress electrical interference with modern engine-management systems and onboard electronics.

For Suzuki DF300B, DF325A, and DF350A owners, installing the correct spark plugs during scheduled maintenance is an important part of maintaining performance. Worn electrodes or combustion deposits can contribute to difficult starting, hesitation, misfires, reduced fuel economy, and loss of power under load.

Spark Plug Specifications

  • Manufacturer: NGK

  • Part Number: ILZKR7D8

  • NGK Stock Number: 96412

  • Series: Laser Iridium

  • Heat Range: 7

  • Thread Diameter: 12 mm

  • Thread Pitch: 1.25 mm

  • Thread Reach: 26.5 mm

  • Hex Size: 16 mm / 5/8"

  • Seat Type: Gasket

  • Center Electrode: Fine-wire iridium

  • Ground Electrode: Platinum-tipped

  • Resistor: Yes

  • Spark Gap: 0.8 mm / .032"

  • Sold Individually

Suzuki Outboard Engine Fitment

The NGK ILZKR7D8 / 96412 is specified for select Suzuki 4.4L V6 four-stroke outboards, including:

  • Suzuki DF300B – 300 HP

  • Suzuki DF325A – 325 HP

  • Suzuki DF325AX

  • Suzuki DF325AXX

  • Suzuki DF350A – 350 HP

  • Suzuki DF350ATX

  • Suzuki DF350AX

  • Suzuki DF350AXX

  • Suzuki DF350AMD

These high-output Suzuki engines use a 4,390cc V6 platform and Suzuki's contra-rotating dual-prop lower-unit technology.

Common Boat Applications

Suzuki DF300B, DF325A, and DF350A outboards are installed on a wide variety of offshore center consoles, bay boats, dual consoles, and larger fishing boats. Depending on model year and factory or dealer-installed engine package, applications may include:

Sea Pro

  • Sea Pro 259 DLX

  • Sea Pro 262 DLX

  • Sea Pro 280 DLX

  • Sea Pro 320 DLX

Sportsman

  • Sportsman Open 252

  • Sportsman Open 262

  • Sportsman Open 282

  • Sportsman Open 302

  • Sportsman Open 322

Sea Fox

  • Sea Fox 268 Commander

  • Sea Fox 288 Commander

  • Sea Fox 328 Commander

  • Sea Fox 368 Commander

Cobia

  • Cobia 262 CC

  • Cobia 280 CC

  • Cobia 301 CC

  • Cobia 320 CC

Twin Vee

  • Twin Vee 260 GFX

  • Twin Vee 280 GFX

  • Twin Vee 300 GFX

  • Twin Vee 340 GFX

Cape Horn

  • Cape Horn 24 XS

  • Cape Horn 27 XS

  • Cape Horn 31 T

  • Cape Horn 34 XS

Dusky

  • Dusky 252

  • Dusky 278

  • Dusky 33

  • Dusky 35

Additional applications may include compatible Suzuki-powered boats from Aquasport, Carolina Skiff, Sea Chaser, Key West, Blackfin, Pro-Line, Sailfish, World Cat, Prowler, Stamas, and other manufacturers offering high-horsepower Suzuki outboards.

Suzuki OEM Cross Reference

The NGK ILZKR7D8 / 96412 cross-references with:

  • Suzuki 09482-00642

  • Suzuki 09482-00642-000

  • NGK ILZKR7D8

  • NGK 96412

Key Features

  • Genuine NGK Laser Iridium spark plug

  • NGK stock number 96412

  • Designed for select Suzuki 4.4L V6 outboards

  • Fits DF300B, DF325A, and DF350A engine families

  • Fine-wire iridium center electrode provides excellent ignitability

  • Platinum-tipped ground electrode helps reduce wear

  • 0.8 mm / .032" spark gap

  • Resistor design helps suppress electrical interference

  • Supports reliable starting and smooth acceleration

  • Excellent choice for scheduled Suzuki outboard maintenance

Built for Suzuki's High-Horsepower V6 Outboards

Suzuki's DF300B, DF325A, and DF350A engines are designed to deliver substantial torque and performance for larger recreational and offshore boats. Maintaining that performance requires ignition components built to the correct specifications. The NGK ILZKR7D8 Laser Iridium Spark Plug provides the durability, spark consistency, and heat-management characteristics required for these advanced four-stroke V6 engines.

Whether you're servicing a Suzuki DF300B, DF325A, DF325AX, DF350A, or another compatible variant, the NGK ILZKR7D8 Laser Iridium Spark Plug – 96412 provides a proven replacement backed by NGK's extensive experience in marine ignition technology.

Fitment Note: Boat model alone does not determine spark plug compatibility. The same hull may be offered with several outboard brands and horsepower options. Verify NGK ILZKR7D8 / stock #96412 against your Suzuki engine model, serial number, service information, or original OEM number 09482-00642 before ordering.