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Parts for your 2003 Holden Astra-Headlights
Narva Crimp Terminal Flag Female Blade Brass Terminal Entry 6.3 x 2.1mm Non Insulated 100Pk - 56228
$36
Explore 4WD & Adventure
OEX Crimp Terminal Female Blade Brass Terminal Entry 6.3 x 0.8mm Non Insulated 100 Pce - ACX3078
$27
OEX 8 B&S Twin Core Battery Cable, Red / Black With Black Sheath - 5m Blister Pack - ACX0927-5BL
$75
Narva OE Style Sealed Push Switch Off/On SPDT 12V Blue LED Illuminated Driving Lights Symbol (Contacts Rated 3A @ 12V) - 63304BL
$39
Narva Sealed Rocker Switch Off/On SPDT 12V Blue Illuminated Driving Lights Symbol (Contacts Rated 20A @ 12V) - 63132BL
$37
Narva OE Style Sealed Push Switch Off/On SPDT 12V Blue LED Illuminated Light Bar Symbol (Contacts Rated 3A @ 12V) - 63302BL
$39
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2003 Holden Astra headlights
Technical references including the 2003 Holden Astra (TS) Owner’s Handbook, GM/Opel service literature for the Astra G platform, and Australian Design Rules (ADR 13/00 – Lighting) confirm that the 2003 Holden Astra is factory-fitted with halogen headlamps. So headlights are absolutely relevant to this model.
On this Astra, the headlights do the heavy lifting after dark and in poor weather: low beam handles everyday night driving without dazzling oncoming traffic, while high beam punches further down rural roads. The assemblies also house the parkers and indicators, helping the car be seen from the front. Most TS Astras run halogen bulbs (typically H7 low beam and H1 high beam), with 12 V, 55 W ratings that meet local ADR requirements.
As part of any service, it’s smart to check the headlights for brightness, beam aim, lens clarity, and moisture. Dull output usually comes down to ageing bulbs, hazed polycarbonate lenses, or a poor earth. Replace bulbs in pairs to keep the colour and brightness even. When fitting halogens, avoid touching the glass with bare fingers and stick with ADR‑compliant 55 W options
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