Parts for your 1998 Daihatsu Terios-Headlight bulbs

1998 Daihatsu Terios Headlight Bulbs — What They Do and How to Look After Them

Headlight bulbs are definitely used on the 1998 Daihatsu Terios. Technical references including the 1998 Terios owner’s handbook for the J100 series and major lamp catalogues from global bulb makers identify the headlamps as halogen units that take an H4 12V 60/55W dual‑filament bulb (market variations may apply). Daihatsu service literature for the J100/J102 platform also describes a replaceable bulb behind a dust boot and spring clip, confirming the Terios does not use sealed-beam lamps.

On this tidy little SUV, the headlight bulbs handle both low and high beam via the H4’s two filaments. Their job is simple but critical: provide a clean, well-aimed beam for safe night driving, wet-weather visibility, and to keep the car compliant for WOF/roadworthy checks across NZ and Australia. Dull, mis-matched, or failing bulbs can mean poorer vision and a potential defect notice.

Owners will appreciate that swapping a bulb is straightforward. Under the bonnet, each headlamp has a rear cover or rubber boot. Behind it sits a plug and a spring retaining clip that holds the bulb. With the clip released, the H4 bulb pulls out. When refitting, match the locating tabs so the bulb sits correctly in the housing, then refit the clip, plug, and boot.

• Always use the specified H4 12V 60/55W halogen — avoid higher-wattage bulbs that can overheat wiring or lenses.
• Don’t touch the glass