Dethleffs side marker light for motorhome
Dethleffs side marker light for motorhome
Dethleffs side marker light for motorhome
Dethleffs side marker light for motorhome
Brand: Dethleffs SKU: SWLS1346

Dethleffs Side Marker Light (Rectangular)

£44.99
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🔦 Overview & Specs

The genuine Dethleffs side marker light is designed to enhance motorhome visibility and comply with UK/EU lighting regulations:

  • Dimensions: 126 × 38 × 11 mm

  • Mounting: Surface-mounted with screw fixings; 100 mm hole spacing

  • 12 V / 5 W pre-fitted capless bulb

  • Lens: Amber with integrated reflector, E‑marked

  • 👍 Why It’s Worth Considering

  • Perfect OEM fit: Ensures alignment, function, and long-term fitment

  • Legal compliance: E-marked amber lens meets UK/EU standards

  • Reliable performance: Includes a 5 W bulb for bright illumination

  • Durable construction: Designed to withstand road conditions

🛠️ Installation & Upgrade Tips

  1. Removal: Unscrew the lens and twist off the bulb holder (standard Hella design)

  2. Replacement: Insert the new light, aligning screws with existing holes; aim for even sit

  3. Sealing: Use bead of silicone or butyl sealant around the base to prevent moisture ingress

  4. Electrical check: Ensure 12 V feed and earth connection; test operation with sidelights on

  5. LED upgrade option: Can swap to LED equivalent, but be cautious of polarity and possible need for load resistors to avoid flicker


Pickup available at SouthWest Motorhomes - Sales, Hire & Service Ltd

Usually ready in 4 hours

Pairs well with

Free shipping on orders over £100 (exclusions apply)

All items come with full manufacturer guarantees for quality and performance

Shipping & Returns Policy

Shipping Policy

We aim to dispatch orders within 2 working days and are shipped via Royal Mail or FedEx with tracking and drop-off without signature.

Shipping is free on orders over £100 (exclusions apply)*
For orders under £100 there is a £5.99 shipping charge
For all next day orders there is a £9.99 shipping charge

*We offer FREE delivery on all orders over £100 (not including bespoke orders placed as part of our Part Finder service or products shipped directly from the supplier).

To see our full Shipping Policy click here

Returns Policy

If you're not completely satisfied with your order, you can return it to us within 14 days of receipt via Royal Mail. Though please note that we charge £3 for returns that are not faulty and the £3 will be deducted from your refund. Only damaged parts will have a full refund and return postage paid for.

To see our full Returns Policy click here
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Fitting available at our NCC Approved Workshop

We supply genuine spare parts sourced directly from leading manufacturers, serving the caravan, motorhome, holiday park, leisure, and marine industries. Our close links with manufacturer technical teams give us access to hundreds of detailed diagrams, technical resources, and parts lists—ensuring you get the right component every time.


If your part requires professional fitting, our NCC Approved Workshop in Ilminster, Somerset is fully equipped to help. Simply get in touch to book an installation appointment, and our experienced technicians will ensure your parts are fitted safely, correctly, and in line with manufacturer specifications.

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