Hitachi R35 Ignition Coil Length: 140mm ( Overall )

Overview

The Hitachi R35 ignition coil delivers the high-energy spark essential for reliable ignition in modified engines, particularly those running higher compression ratios, aggressive timing maps, or forced induction. Originally fitted to Nissan's VR38DETT, this coil has become the go-to upgrade for builders seeking proven OEM reliability with significantly higher output than standard coils.

Technical Specifications

• Part Number: HT-020106
• Overall Length: 140mm
• Type: Genuine Hitachi R35 specification
• Output: High-energy discharge
• Includes: Mating connector, pins, and seals

Why You Need This

Standard ignition coils often become the weak link in modified engines, leading to misfires under boost, inconsistent idle quality, and poor combustion efficiency at higher RPM. The R35 coil's superior output ensures complete fuel burn even with rich AFRs, high cylinder pressures, and extended dwell times that would overwhelm factory coils. We've fitted these to everything from LS swaps running E85 to RB26 builds pushing serious boost levels — the difference in spark quality and engine response is immediately noticeable.

The 140mm length makes this coil particularly suitable for applications where space is at a premium, yet you still need the power delivery of a full-size performance coil. Popular conversions include SR20DET builds, 2JZ-GTE swaps, and custom EFI installations where the original coil-on-plug setup needs upgrading. The genuine Hitachi construction means you get OEM reliability without the lottery of aftermarket alternatives that may fail under sustained high-output conditions.

ECU & System Compatibility

Compatible with the full Haltech Elite and Nexus range when configured for coil-on-plug ignition systems. Works seamlessly with Elite 550/750/1000/1500/2000/2500 and Nexus R3/R5 ECUs. Note that conversion brackets or harness modifications may be required depending on your engine platform — our technical team can advise on the specific requirements for your build and recommend any additional hardware needed.

What's in the Box

• Genuine Hitachi R35 ignition coil
• Mating connector with pre-fitted pins
• Weatherproof seals
• Haltech quality assurance documentation

Complete Your Build

Most customers upgrading their ignition system also require conversion brackets, extended wiring looms, or coil mounting hardware specific to their engine platform. Contact our technical team for a complete ignition system package tailored to your build — we'll ensure you have everything needed for a professional installation. With UK stock held at our workshop, we can typically despatch complete ignition upgrade packages same-day, backed by our in-house tuning expertise and post-installation support.