Cotton-Braided Wiring Harness for Auxiliary Lamps
Dedicated loom to power two front spot or fog lamps on Austin Healey BN1–BJ8. Finished in period-correct cotton-braided covering with a discreet relay and inline fuse for safe, reliable operation.
Key Benefits
- Powers a pair of front lamps from a protected circuit.
- Modern relay and fused supply reduce switch and loom load.
- Authentic cotton-braided outer for Lucas-style appearance.
- Plugs into existing bullet connectors on the main harness.
- Covers all Big Healey variants from BN1 through BJ8.
Fitment & Compatibility — Will it fit my Healey?
Yes: fits all Austin Healey BN1, BN2, BN4, BN6, BN7, BT7, BJ7, BJ8. Connects to the car’s main harness using standard bullet connectors. Includes a relay to supply two front lamps.
What’s Included
- Cotton-braided twin-lamp harness with Lucas-type terminals.
- Pre-mounted 12V relay and inline blade-fuse holder.
- Earth leads and feeds for left and right lamps.
- Blue/yellow lead for optional rear fog lamp (switch not included).
- Connection guidance and downloadable wiring diagram (PDF).
Technical Details
- Covering: Cotton-braided sleeve over PVC-insulated cable.
- Relay: 12V 30A automotive relay (encapsulated carrier).
- Fuse: Inline blade type (holder included).
- Connections: Bullet terminals to main harness; Lucar/eyelet as shown in diagram.
- Application: Two front lamps; optional rear fog lead provided.
Installation & Setup
Route the loom along the front panel, securing it clear of heat sources, the fan, and moving belts. Ground the black ring terminal to a clean, bare-metal chassis point. Use the supplied earth leads at each lamp; do not rely solely on lamp casings or painted brackets for return. Connect the red/yellow feed to the floor dip-switch main-beam circuit, or to a separate dash switch if preferred. If a rear fog lamp is fitted, the blue/yellow lead requires its own dash switch. Mount the relay/fuse carrier upright and sheltered to minimise moisture ingress, and protect any panel pass-throughs with grommets.
Why Choose This Part
Combines modern electrical protection with period-correct presentation, avoiding overload of original switches while keeping the bay and front panel visually in-keeping with factory looms.
Resources & Downloads
For installation guidance, a printable wiring diagram is available below:
As Required
This is a list of alternate part numbers you can use to cross-reference for your Austin Healey
APP # BN1-BJ8
AH # LTG237
OE # na
ALT #
Quantity per vehicle = ar
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