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Headlight Switch
This usually takes 5-15 seconds. We're pulling together fitment data,
OEM numbers, and community knowledge...
Dusting off the service manual...
💡 This page improves over time as the community adds casting photos and confirms fitment
Quick reference
Verify connector types and mounting brackets, especially when sourcing from different trims or model years.
Check compatibility with JDM vs USDM models due to potential differences in electrical configurations.
Context
The headlight switch for the 1991 Nissan 300ZX (part number 25540-30P00) is a crucial component for controlling the vehicle's lighting system. This part is compatible across the 1989-1996 300ZX models, including both USDM and JDM variants. When sourcing a replacement from a junkyard, inspect the switch for any signs of wear or corrosion, as electrical failures can occur over time. Installation is straightforward; ensure the vehicle is off and disconnect the battery before beginning. Pay special attention to the connector type, as variations may exist between different trims. If you encounter part number 25540-30P01, it’s advisable to verify mounting bracket differences before installation. The headlight switch is known to fail due to internal wear, leading to intermittent lighting issues, so thorough testing after replacement is recommended.
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Confirmed fitment
| Year | Make | Model | Engine | Confidence |
|---|---|---|---|---|
| 1991 | Nissan | 300ZX | VG30DETT | 80% |
Available parts

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