NGK CPR7EA-9 Spark Plug Set — 2-Piece Nickel/Copper Resistor Plugs, 0.9mm Gap, 3/4" Reach

This pair of NGK spark plugs combines a copper core and nickel alloy tip with a ceramic insulator and a built-in 5,000 ohm resistor to deliver dependable ignition performance in many Kawasaki, Yamaha, Suzuki and other models. Each plug features a 0.036 in (0.9 mm) pre-set gap, 5/8" (16 mm) hex, 3/4" (19.0 mm) reach and crush washer seat for straightforward installation. The plugs come in NGK's proven yellow-box packaging and are engineered to match original equipment nickel-alloy specifications.

Which engines and models will these CPR7EA-9 plugs fit?

These NGK plugs are listed for numerous Kawasaki UTVs and ATVs, several Kawasaki models across years, as well as selected Yamaha and Suzuki motorcycles. Always cross-check part numbers with your owner's manual or OEM references before ordering.

• Kawasaki: KRF800 Teryx, KRT800/KRT800 Teryx4, KVF750 Brute Force 4x4i, many 2014–2024 models.
• Yamaha: XVS950 Bolt and V Star 950 variants (years cited in fitment).
• Suzuki: GSX250R 2018–2019 models listed.
• Verify compatibility by engine displacement and OE gap (0.036 in / 0.9 mm).

What are the key construction and electrical details of these plugs?

NGK engineered the CPR7EA-9 with a 98% copper core for effective heat transfer plus a nickel alloy tip for standard replacement durability. The ceramic insulator and resistor work together to stabilize ignition and reduce radio-frequency interference (RFI).

• Center core: high-purity copper for conductivity and heat dissipation.
• Tip and ground electrode: nickel alloy with a standard J-gap design.
• Resistance: integrated 5,000 ohm resistor to limit electrical noise.
• Insulator: high-grade alumina silicate ceramic for dielectric strength.

How should I install and maintain these NGK spark plugs?

Installation is straightforward for anyone with basic mechanical skills. Use the specified reach, torque and a crush washer to ensure a gas-tight seat; re-gap only if recommended by the vehicle manufacturer.

• Pre-set gap: 0.036 in (0.9 mm); confirm before installation.
• Hex size: 5/8" (16 mm) — use a compatible socket and torque wrench.
• Seat type: flat with crush washer — tighten to OEM torque specs.
• Do not use on vehicles requiring precious metal plugs unless OEM allows nickel replacements.

Why choose NGK CPR7EA-9 instead of an aftermarket or precious-metal plug?

These NGK standard plugs are built to OE nickel-alloy specifications, offering a cost-effective replacement that preserves original ignition behavior where nickel plugs were specified. They balance conductivity, heat range and durability for everyday riding and off-road use.

• Manufacturer heat range: 7 — suitable for many standard applications.
• Standard replacement grade: engineered for OEM-equivalent performance.
• Trivalent plating: improved corrosion and seizure resistance on threads.
• Best choice where OEM calls for nickel alloy, not precious-metal plugs.

Who is this for: Riders and owners who need a reliable OEM-style nickel spark plug replacement for mid-displacement motorcycles, ATVs and UTVs — especially Kawasaki Teryx and Brute Force owners, Yamaha V Star/XVS950 riders, and Suzuki GSX250R users who require the CPR7EA-9 specification (0.036 in gap, 5/8" hex, 3/4" reach). Ideal for DIY maintenance, routine tune-ups, and fleet servicing where OE-equivalent, cost-effective plugs are preferred.