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Boomslang Performance Headlight Loom

Red Bison

Compatible Vehicles

  • 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

  • Series 2 & 3: All with H4 Bulbs Fitted

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

Customer Reviews for Boomslang Performance Headlight Loom

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