DENSO Spark Plug • K20TT MX-5 MK1 / MK2 (1.6) (89-05)

DENSO K20TT Nickel TT Spark Plug (Pack of 4)

Replacement DENSO Nickel TT spark plug for Mazda MX-5 1.6 Mk1 (NA), Mazda MX-5 1.6 Mk2 (NB), Mazda 323 (BG/BA/BJ), Mazda 626 (GD/GE), Mazda 929 (HB/HC) and Mazda Xedos models using the matching Mazda spark plug references.

It is designed to support reliable ignition by delivering a strong spark across DENSO’s Nickel TT twin-tip electrode design.

This spark plug is aimed first at the listed Mazda MX-5 1.6 Mk1 (NA) and 1.6 Mk2 (NB) applications, plus the other listed Mazda petrol applications where K20TT, or a matching Mazda OE spark plug reference, is specified. Always compare the existing plug type, thread, reach, heat range and OE reference before fitting.

DENSO Nickel TT spark plugs use a twin-tip design with a thin centre electrode and protruding ground electrode to help improve ignitability, combustion stability and everyday drivability.

• Plug type: Nickel TT spark plug
• Thread diameter: 14 mm
• Thread reach: 19 mm
• Hex size: 16 mm
• Spark gap: 1.0 mm
• Projection: 1.5 mm
• Spark position: 3 mm
• Terminal shape: S / Solid SAE
• Resistor: 5 kΩ
• DENSO P/N: 267700-7441
• GTIN: 042511046047
• Brand: DENSO
• Part No.: K20TT

Why DENSO? DENSO is a long-established ignition manufacturer, with aftermarket spark plugs engineered to provide reliable starting, stable combustion and dependable service performance. The Nickel TT range brings twin-tip ignition technology to a wide range of everyday replacement applications.

What’s in the box: 4 DENSO K20TT Nickel TT spark plugs.

Installation notes: Fit using the correct plug socket and torque procedure for the engine, avoid cross-threading, 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.