Dometic Seitz Mini Heki Seal
Brand: Dometic SKU: SWLS1956

Dometic Seitz Mini Heki Seal

£24.99
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The Dometic Seitz Mini Heki Seal (Part No. BG1327 / 4460000028) is an essential replacement rubber seal designed to maintain the watertight integrity of your Mini Heki rooflight. A proper seal is critical for preventing water ingress, wind noise, and maintaining vehicle insulation—especially in UK and northern climates.

Precision Fit & Material
This 1.65 m-long replacement seal is crafted from high-quality EPDM rubber tailored specifically for the standard 400 × 400 mm Mini Heki aperture. It fits neatly into the channel around the hatch frame, ensuring a snug, factory-style installation 

Performance & Durability
EPDM is known for its resistance to UV rays, ozone, and extreme temperatures, ensuring the seal remains flexible and leak-free over years of service. Users rate it highly—an average of 4.6/5 across 18 reviews—emphasizing its resilience and fit .

Installation Tips
Replacing the Mini Heki seal requires patience. It’s best to remove the rooflight dome and install the seal on a flat surface. Apply a dab of super glue or double-sided tape in the corners to secure it—this mimics the original factory method . Some users recommend threading a length of thin wire through the seal while seating it, applying silicone bead into the groove, and then replacing the dome for a smooth finish 

✅ Why You Need It

  • Stops leaks & drafts: Prevents water and wind intrusion, protecting your interior.

  • Eliminates noise: A correct seal removes typical rattles and whistling experienced at speed.

  • Economical maintenance: At around £15–25, it’s a cost-effective way to restore functionality.

  • OEM quality: As a genuine Dometic spare, it ensures perfect compatibility and fit.

📝 Final Verdict

The Dometic Seitz Mini Heki Seal is a smart maintenance essential for motorhome and campervan owners. Durable, easy to fit (with proper prep), and strongly rated by users, it delivers reliable weatherproofing and comfort. While installation may involve some corner gluing, doing it right rewards you with a quiet, secure, and leak-free Mini Heki for years to come.

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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