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Boomslang Performance Headlight Loom

Red Bison

Compatible Vehicles

  • Series 1: All with H4 bulbs fitted

  • Series 2 & 3: All with H4 Bulbs Fitted

  • Defender: All with H4 Bulbs Fitted

  • Discovery 1: All

  • Discovery 2: All with H4 Bulbs Fitted

  • Range Rover to 1985: All

  • Range Rover 1986-1994: All

Stock item - usually ready for despatch

£35.10 Info UK VAT charged at 20% £29.25 Info Outside of EU and EU VAT registered companies only (not UK).

Landrover Headlight Loom

Improved headlight illumination
• Protection of the headlamp switch from high current and overload
• Fitted 40A fuse in waterproof housing for maximum electronic protection
• Easy to install, no changes made to the existing circuit or wiring loom
• Double industrial grade Electromagnetic Relay
• Ceramic H4 connectors
• Including complete wiring kit
• With English and Dutch manual and installation guide
• 2 years warranty


• Vehicles fitted with H4 headlight ficture.


• Continuous Current 40A (fuse)
• Max Relay Current 40A x2
• Connect Voltage 11.8 – 14.5VDC
• STBY Current <5mA (12VDC)
• Weight 450 grams
• Operational temperature range -40°C to 85°C

If converting a series 2/2A with lights in grille to fit H4 headlamps you may need to change the backing bowl to STC1613 to allow the loom cables to be passed through.

More Information
OEM / Aftermarket Aftermarket
Warranty 24 Months Warranty
Lead Time Stock item - usually ready for despatch
Vehicle For Series 1, Series 2 & 3, Defender, Discovery 1, Discovery 2, Range Rover 1986-1994, Range Rover to 1985

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