Overview

The Seat Belt Extender for Tesla adds up to 7 inches (≈18 cm) of extra belt reach for Model 3, Model Y, Model S, and Model X (2017-on). It installs in seconds with a click-in buckle, is available in 21 mm or 22 mm tongue sizes for a precise fit, and uses high-strength steel plus durable webbing/ABS. Ideal for passengers who need more reach due to body size, pregnancy, limited mobility, child-seat side access, or bulky clothing.

Key Features

• Extra reach: 7" extension reduces strain and makes buckling easier

• Plug-and-play: click into the OEM buckle; no tools required

• Sized for Tesla: 21 mm / 22 mm tongue options to match different latch specs

• Solid build: steel tongue with wear-resistant webbing/ABS housing

• Model-specific fit: for Model 3/Y/S/X (2017-present) with interior-friendly look

• Comfort first: easier access for seniors and mobility-limited passengers

• Travel-ready: compact, easy to move between seats or vehicles

Note: This product improves accessibility and comfort; it does not upgrade or replace the vehicle’s original restraint performance.

Specifications

Compatibility

• Model 3: 2017-On

• Model Y: 2020-On

• Model S: 2017-On (latch dimensions may vary by batch)

• Model X: 2017-On (some seat positions have deeper latch pockets)

Important: Latch slot width/depth may differ by seat position and production batch. Measure the inner width of the metal slot and select 21 mm or 22 mm accordingly. If unsure, share a photo and measurement before ordering.

Installation

1. Measure your OEM buckle slot width (mm) and choose 21/22 mm.

2. Align the extender tongue with the buckle and insert until it clicks.

3. Insert the vehicle’s belt tongue into the extender; pull to confirm it’s locked.

4. Press the release button to remove; store upright when not in use.

Safety & Notes

• Do not use with child seats or boosters that require direct OEM buckle connection.

• Use only when the lock is fully engaged and there’s no interference with belt retractors, pretensioners, or side airbags.

• Inspect regularly for wear or looseness; discontinue use if abnormal.

• Follow local regulations regarding seat belt extensions.

What’s Included

• Seat Belt Extender × 1

• (Optional) Storage pouch × 1

• Quick start guide × 1

FAQ

How do I choose 21 mm vs 22 mm?
Measure the inner width of the OEM buckle slot. Round to the nearest millimeter, then select the matching tongue size.

Will it affect airbags or seat-belt warnings?
When properly seated and sized, warnings are unaffected. Ensure full lock-in and that nothing obstructs airbag or belt routing.

Can it be used with child seats?
No. Child restraint systems must connect directly to the OEM buckle per the manufacturer’s instructions.