Cadillac CT4 Seat Belt Extender
-
Free Shipping & Returns: On all orders in UK & US
30-Day Money Back Guarantee
We want you to be 100% satisfied with everything you buy from our store. If you're not entirely happy with your purchase, we will refund your money or exchange the product. All we ask is that you contact our customer service.
Cadillac CT4 Seat Belt Extender
Buckle Up Comfortably in Your Cadillac CT4
The CT4 is a compact rear-drive saloon with a tall centre console and, on V and Blackwing cars, a deeply bolstered front seat. Which of those two things is in your way decides what you need. Start with the seat check below, because on this car it matters more than the badge.
The Problem
The CT4 is a genuinely compact car for its class, and the console runs high and wide alongside the seat. The front buckle stalk drops into that channel where you cannot see it. On V and Blackwing cars a performance bucket seat adds a firm side wall between your hand and the latch as well. In the rear, a tight cabin leaves passengers reaching behind the hip for a buckle tucked against the bench.
The Solution
A certified extender lifts the connection point up out of the console channel to where your hand already falls. One click into the car's buckle, one click with your factory belt tongue, and you are secured comfortably, with no reaching and no risk of a penalty for riding unbelted.
Why safety-first matters here
E4 & E8 Certified
Tested and type-approved to European safety standards.
UK Registered Factory
Manufactured in a facility operating to ISO/TS quality standards.
Exceeds Break-Strength
Built to surpass international break-strength tests for three-point belts.
Start with your seat, not your trim
The CT4 was sold with three grades of front seat, and yours decides the answer. If you have the window sticker or build sheet, the option code confirms it.
| Your front seat | How to recognise it | What to order |
|---|---|---|
| Standard | Shaped but conventional. You can lay a hand flat on the seat side without your arm riding up over a bolster. | Regular, shortest length that reaches |
| Performance bucket (AQ9) | Standard on CT4-V. Noticeably raised side bolsters running from hip to ribs. | Rigid, 3 or 5 inch |
| High-performance bucket (AQJ) | The deepest seat offered, found on earlier V and Blackwing cars. Deleted for the 2026 model year. | Rigid, 3 inch. Send a photo first. |
| Any seat, several drivers | No single length suits everyone who uses the car. | Adjustable, 9 to 26 inch |
Cadillac CT4 Fitment details
| Feature | Detail |
|---|---|
| Model years | 2020 to 2026. A single generation, with North American production ending in June 2026 and no successor. |
| Body | Four-door compact saloon on GM's Alpha 2 platform, rear-wheel drive with optional all-wheel drive |
| Variants covered | CT4 Luxury, Premium Luxury, Sport, CT4-V, and CT4-V Blackwing |
| Seat positions | Front driver, front passenger, second row window, second row middle |
| Material | Woven seat belt webbing or rigid metal extension, with a smooth-finish metal latch |
| Rear seat note | The centre rear belt uses a different stalk from the window seats, so order it separately |
| Related models | Replaced the ATS, and shares its platform with the CT5. Neither takes the same part, so order against the CT4. |
| Certification | E4 or E8 type-approved |
How it works
Nothing is cut, drilled, or modified. The whole thing takes about five seconds and lifts straight back out whenever you want it gone.
Click the extender's tongue into your seat belt receptacle.
Buckle your seat belt into the extender. Takes about five seconds, no tools needed.
To remove it, press the release button just like a normal belt.
Pick the shortest length that works
We recommend adding only the minimum length you need to buckle comfortably. More webbing is not safer, it just adds slack.
1.Reach with your eyes shut
If you find the latch by feel you need length. If your hand stops at the console or bolster, you need height, and that is a rigid extender.
2.Find your seat
Select the exact position: front driver, front passenger, second row window, or second row middle.
3.Need help?
Send your year, trim and a photo of the seat side and buckle, and we will confirm the fit for your CT4.
Made for
- ✦Plus-sized drivers and passengers
- ✦CT4-V and Blackwing owners sitting inside performance bolsters
- ✦Drivers wearing utility belts or heavy workwear
- ✦Anyone with mobility or reach limitations
Good to know
- ✦Seat grade matters more than trim badge on this car
- ✦The CT4 shares its platform with the CT5 but not its belt parts
- ✦CT4s in the UK are left-hand-drive imports, so tell us the physical side
Satisfaction Guarantee
Try it in your CT4. If it is not right for you, return it within the guarantee window.
Certified Quality
E4/E8 approved and built in a registered facility to exceed break-strength tests.
Free Shipping
Your extender ships free, so there is nothing extra to worry about at checkout.
Questions worth answering
Free standard UK & US shipping on all orders, with processing in 1–2 business days and delivery in 2–5 business days after dispatch (longer during peak periods). You'll get a confirmation email with tracking once your order ships. Plus, every purchase is backed by a 30-day money-back guarantee — if you're not happy with the product, just return it for a full refund.