Ridex HT / Ignition Lead Set • 685I0116 MX-5 MK1 NA/MK2 NB (89-05)

RIDEX 685I0116 Ignition Lead Set

Replacement RIDEX HT ignition lead set for Mazda MX-5 Mk1 (NA) and Mk2 (NB/NB-FL) petrol models using the matching Mazda ignition lead references.

It is designed to transfer ignition voltage reliably from the coil/distributor system to the spark plugs, helping support smooth running, consistent combustion and easier starting.

This lead set is aimed at the listed MX-5 Mk1 and compatible Mk2 non-VVT ignition systems. It is intentionally not listed for later 1.8 VVT/VVTi-style MX-5 variants where the ignition coil pack arrangement connects directly to two of the four spark plugs.

RIDEX ignition leads are built for dependable everyday servicing, using silicone insulation, OE-style connector ends and a wire-wound core to support reliable spark delivery and resistance to heat, vibration and electrical leakage.

• Part type: HT ignition lead / ignition cable set
• Material: Silicone
• Ignition cable connector: SAE type
• Distributor / rotor connector: DIN type
• Core type: Wire wound
• Outer diameter: 7 mm
• Lead lengths: 200 mm / 380 mm and 150 mm / 275 mm
• Brand: RIDEX
• Part No.: 685I0116

Why RIDEX? RIDEX is positioned as a value-focused replacement parts range that gives dependable quality without the cost of premium-name branding. For ignition leads, the cable set is designed to provide reliable voltage transfer, helping reduce misfires, hesitation and poor running caused by aged or cracked HT leads.

What’s in the box: One RIDEX ignition lead set.

Installation notes: Replace leads one at a time to preserve firing order, route cables away from excessive heat and moving parts, ensure all plug and distributor/coil connections are fully seated and always confirm fitment by VIN, engine code and OE reference before purchase.