Haltech HT-120201 R35 Coil Conversion Kit for Toyota JZ (1JZ/2JZ)

Vehicle Fitment

• Toyota 1JZ, 1JZ-VVTi, 2JZ, 2JZ-VVTi engines

Features

• Complete R35 coil conversion kit - bracket, coils, harness, connectors & seals
• Bolt-on R35 coil bracket machined from 6061-T6 billet aluminium
• Black anodized finish with Haltech branding for durability and clean appearance
• Includes 6 x genuine Hitachi "R35 GTR" ignition coils with matched connectors, pins & seals
• Pre-terminated COP (coil-on-plug) ignition harness - plug-and-play for inline-6 JZ engines
• DT-8 connector option included for alternate harnesses/universal wiring setups
• Includes mounting hardware and PCV block-offs for clean installation
• Improved spark energy and ignition reliability - suitable for high-performance or modified engines

Specifications

• Material (bracket): 6061-T6 billet aluminium, anodized black
• Coils: 6 x Hitachi "R35 GTR" coil-on-plug ignition coils (matched connectors & seals)
• Compatibility: 1JZ / 1JZ-VVTi / 2JZ / 2JZ-VVTi inline-6 engines
• Harness: Pre-terminated COP ignition harness for inline-6 configuration
• Connector type: DT-8 for alternative harness wiring (if not using Haltech terminated harness)
• Included hardware: bracket bolts, PCV block-offs, coil connectors, pins & seals

Included Components

• 1x Billet-aluminum R35 coil bracket (HT-120201)
• 6x Genuine Hitachi "R35 GTR" ignition coils with connectors, pins & seals
• 1x Pre-terminated COP ignition harness for inline-6
• 1x DT-8 opposing-connector for alternative wiring harness setups
• Mounting hardware including bolts and PCV block-offs
• Installation/instruction guide

Product Description

The Haltech HT-120201 R35 Coil Conversion Kit is a full ignition upgrade package designed for Toyota's JZ-series engines (1JZ & 2JZ, including VVTi variants). It replaces the factory ignition coils and bracket with high-output "R35 GTR" coil-on-plug units, paired with a precision-machined billet-aluminum bracket and a dedicated coil-on-plug harness - offering a plug-and-play solution for ignition upgrades on high-performance or modified engines.

This kit gives tuners and builders increased spark energy and improved ignition reliability - especially beneficial when running high boost, high compression, or high-RPM setups. The included genuine Hitachi coils with proper connectors, pins, and seals ensure OEM-level quality and durability, while the billet bracket ensures correct alignment and secure mounting without fabrication.

Installation is straightforward for anyone working on a JZ inline-6 engine: bolt the bracket, mount the coils, connect the provided harness (or DT-8 connector if using a custom harness), and optionally apply the PCV block-offs for a clean installation. For engine builds focused on power, consistency, and reliability - whether for street, track, or drift - the HT-120201 kit simplifies ignition upgrades while delivering proven performance benefits.