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Universal Adjustable Car Seat Belt Extender

£64.95 £19.95 Save 69%
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NOTICE: This product is one of our bestsellers and is already sold out in our physical store. If the “ADD TO BAG” button still works, it means the product is still in stock online in limited quantities.

Universal Adjustable Seat Belt Extender for Cars

This adjustable car seat belt extender provides enhanced protection and comfort during every drive designed to replace worn or damaged seat belts in vehicles with two-bolt mounting points. Its extended webbing length delivers a flexible fit suitable for daily commutes or long trips ensuring safe and comfortable use for a wide range of drivers and passengers.

Built for Durability and Safety

Constructed for durability this safety belt extender is built to withstand regular use while maintaining its safety standards. Its design improves seat belt positioning and helps minimize discomfort from tight straps contributing to better protection during minor collisions.

Adjustable Design for Flexible Comfort

The extender adjusts from approximately 34.6 inches to 51.1 inches allowing users to customize their seating comfort. Its width of about 1.8 inches ensures compatibility with standard seat belt systems in most vehicles making it a practical and versatile option for many car models.

Reliable and Comfortable Fit

Whether replacing an old strap or improving comfort this car seat safety belt extender provides a secure and reliable fit. Its adjustable design and durable construction make it a practical choice for drivers and passengers seeking both comfort and safety.

Key Features

  • Adjustable length: from 34.6 inches to 51.1 inches for flexible use
  • Durable construction: for long lasting performance
  • Replacement option: suitable for worn or damaged belts in cars with two bolt mounting points
  • Comfort improvement: improves comfort while maintaining safety during minor collisions
  • Universal fit: for most vehicle seat belt systems
  • Easy installation: for added driving convenience

Product Specifications

  • Width: 1.8 inches
  • Shortest adjustment length: 34.6 inches
  • Maximum adjustment length: 51.1 inches 
  • Material: Thick polyester

What’s Included

  • 1 x Seat Belt Extender

Frequently Asked Questions

1. Is this seat belt extender compatible with any car?
This extender fits most vehicles that use a two bolt mounting point. It is recommended to check your car’s seat belt system before purchase.

2. How long is the car seat belt extender when fully extended?
The length adjusts between approximately 34.6 inches to 51.1 inches, providing flexibility for different seating needs.

3. Can this be used as a permanent replacement for my original seat belt?
Yes. It is designed as a suitable replacement for worn or old belts, offering reliable safety and comfort for daily use.

4.7 (19.342)
Jack Turner

Confirmation came through straight away, then another email when it was sent. Tracking worked and the parcel arrived when they said it would. Nice and straightforward

Benjamin Foster

Nothing missing and no surprises when I opened the parcel. What turned up matched what I’d seen on the website

Hannah Lewis

Had a look around before buying and this was a fair bit cheaper. Arrived as expected too, so happy with that.

Sophie Bennett

I emailed before ordering because I couldn’t work out which option I needed. Got a proper reply explaining the difference, rather than just a link back to the page I’d already read. Might seem a small thing but it helped me decide. Placed the order that evening and I’m happy with what arrived.

Harry Collins

My first order was only a small one a few months back. That went well, so I checked here when I needed something else. Different sort of purchase this time but everything was just as straightforward. Saved me another evening of looking around!

Daniel Thompson

Ordered Sunday evening and it was here Tuesday morning. Wasn’t expecting that, especially ordering over the weekend

Charlotte Brooks

All arrived, all good 😊

Amelia Scott

Entirely my mistake, I picked the wrong option and only noticed when the confirmation came through. Sent an email and they managed to change it before dispatch. Very relieved I didn’t have to deal with returning it afterwards!

George Wilson

Bought it in the sale. Happy with what I paid and it’s what I was after, which is the main thing.

Grace Mitchell

Hadn’t heard of Havenholt before and wasn’t sure about ordering from somewhere new. Only bought one thing to start with. There was a short wait for dispatch, but they kept me updated and everything arrived as described. Happy with the purchase and I’d be comfortable ordering again.

Emily Carter

There was a mix-up with my order so I had to get in touch. Sent a photo over and they explained what would happen next. Didn’t have to keep repeating myself to different people, which I really appreciated. All sorted now

Samuel Reed

They didn’t have the one I wanted when I went into the shop, but suggested checking online. Managed to order it on the website later that day. Would have preferred to take it home there and then, but this worked out fine.

Universal Adjustable Car Seat Belt Extender
Universal Adjustable Car Seat Belt Extender
£64.95 £19.95

Information

Our policies

Customer Support

Company name: Havenholt LTD

Address: St Andrew's Street, Cambridge CB2 3BJ, United Kingdom

Email: support@havenholtsoho.com

Phone: +44 1223 302601

Customer Service Hours: 
Mon–Fri: 09:00 am–05:00 pm
Sat & Sun: Closed

Response time: Within 24 hours

© 2026 Havenholt

Universal Adjustable Seat Belt Extender – Nylon Webbing Strap for Two-Bolt Mountings