DENSO Spark Plug • ITV20TT MX-5 MK3/NC (2.0)

DENSO ITV20TT Iridium TT Spark Plug

Replacement DENSO Iridium TT spark plug for Mazda MX-5 2.0 Mk3 / Mk3.5 / Mk3.75 (NC), Mazda 5 and Mazda 6 models using the matching Mazda spark plug references.

This listing is aimed first at the Mazda MX-5 2.0 Mk3 / NC application. For MX-5 models, this plug is for the 2.0 engine only; a different plug is recommended for 1.8 models.

DENSO ITV20TT is an Iridium TT spark plug with a fine twin-tip electrode design, using a 0.4 mm iridium centre electrode and a 0.7 mm platinum ground electrode to support strong ignition performance and stable combustion.

Always compare the existing plug type, thread, reach, seat type, heat range and OE reference before fitting. Vehicle compatibility should be confirmed using the vehicle registration, VIN, engine code or an approved parts catalogue.

• Plug type: Iridium TT spark plug
• Seat type: Taper seat
• Thread diameter: 14 mm
• Thread reach: 25 mm
• Hex size: 16 mm
• Spark gap: 1.0 mm
• Projection: 1.5 mm
• Spark position: 3 mm
• Ground electrode height: 6.2 mm
• Terminal shape: Solid SAE
• Resistor: 5 kΩ
• DENSO P/N: 267700-8250
• Trade numbers: 4719, IT19
• GTIN: 042511047198
• Brand: DENSO
• Part No.: ITV20TT

Why DENSO? DENSO Iridium TT spark plugs use a fine twin-tip design to help reduce quenching around the spark, supporting efficient ignition, smooth running and dependable service performance.

What’s in the box: One DENSO ITV20TT Iridium TT spark plug.

Installation notes: Fit using the correct plug socket and torque procedure for the engine, avoid cross-threading, do not over-tighten, set or confirm the plug gap only where the vehicle service data requires it and always confirm fitment by VIN, engine code, plug dimensions and OE reference before purchase.