NGK Iridium IX Spark Plug Set | 3VZ-E (1988-95 4Runner)

NGK Iridium IX Spark Plug Set

For 1988–1995 Toyota 4Runner with the 3VZ-E engine

Overview

NGK Iridium IX spark plug sets provide a year-specific six-plug service set for the 3VZ-E V6. Both offered configurations are factory-pregapped to 0.032 in (0.8 mm), matching the Toyota service specification for the verified stock application.

1988 uses a different NGK Iridium IX plug configuration from 1989–1995. Choose the Vehicle Year Range that matches the 4Runner model year.

Key Features

• Complete six-plug set for one 3VZ-E V6
• Factory-pregapped: 0.032 in (0.8 mm) for both offered configurations
• Iridium IX construction: fine-wire iridium center electrode design
• Year-specific selection: separate 1988 and 1989–1995 configurations for the verified applications

Vehicle Fitment

1988–1989 Toyota 4Runner — 1st Gen

• 1988: 3VZ-E, 4WD — 1988-specific spark plug configuration
• 1989: 3VZ-E, 4WD — 1989–1995 spark plug configuration

1990–1995 Toyota 4Runner — 2nd Gen

• 1990–1995: 3VZ-E, 2WD / 4WD — 1989–1995 spark plug configuration

Fitment Notes

• 1988 and 1989 use different Iridium IX configurations. Select the exact year range shown in the product option.
• Both offered configurations are supplied at the verified 0.032 in (0.8 mm) factory preset for the stock 3VZ-E application.
• Engine-swapped or modified ignition setups should be matched to the installed engine and ignition configuration rather than chassis year alone.

Product Specifications

Brand: NGK
Series: Iridium IX
Product Type: Resistor Spark Plug Set
Engine: 3VZ-E
Thread: M14 × 1.25
Thread Reach: 19 mm (3/4 in)
Seat Type: Gasket / flat
Hex Size: 16 mm (5/8 in)
Heat Range: NGK 5
Factory Preset: 0.032 in (0.8 mm)
Set Quantity: 6 spark plugs

Which Spark Plug Is Right for You?

Prefer DENSO? If you want a conventional nickel spark plug, the DENSO 3VZ-E Spark Plug Sets for the Toyota 4Runner offer Standard U-Groove for factory-style service and value. The same listing also offers Iridium TT, a premium iridium alternative to NGK Iridium IX. Both DENSO and NGK are reputable brands, so DENSO is also an excellent option if NGK is unavailable.

Our Recommendation: Choose DENSO Standard U-Groove if you prefer a conventional nickel plug. For iridium, NGK Iridium IX and DENSO Iridium TT are both strong choices; select the correct 4Runner model-year configuration for whichever option you choose.

Available Configurations

1. Vehicle Year Range

• 1988 (1st Gen): 1988-specific Iridium IX plug design; 6 spark plugs; factory-pregapped to 0.032 in (0.8 mm)
• 1989–1995 (1st / 2nd Gen): later Iridium IX plug design; 6 spark plugs; factory-pregapped to 0.032 in (0.8 mm)