Original Ray-Ban 4340 WAYFARER Replacement Lenses

Original Ray-Ban RB4340 Wayfarer replacement lenses

If your Ray-Ban RB4340 Wayfarer lenses are scratched, worn or no longer comfortable to look through, you do not need to replace the whole frame. These original Ray-Ban replacement lenses restore clear vision while keeping your own frame, often saving up to 60% compared with buying a new pair. ReplacementLenses.net also offers free shipping and the reassurance of buying from an official EssilorLuxottica distributor.

Model compatibility

These Ray-Ban replacement lenses are made for the RB4340 in size 50. They match the square lens shape and Base 6 curve specified for this model, so the fit is the one expected from an original part.

They are not universal Wayfarer lenses. Similar-looking models, such as RB2140 or RB2132, may use a different lens cut and should not be assumed to be compatible.

How to identify your model and size

Check the inside of the temple arm before ordering. You should find RB4340 and size 50 printed or engraved there. That reference is more reliable than comparing photos because small differences in lens geometry matter.

If your old lenses are already removed, measuring can help, but the model code on the frame is the safest way to choose the correct original Ray-Ban lenses.

Main features

• Brand: Ray-Ban.
• Compatible model: RB4340.
• Size: 50.
• Diameter: 55 mm.
• Shape: square.
• Lens material: glass, with M2 listed as plastic by the manufacturer attributes.
• Lens curve: Base 6.
• Use: sunglasses.
• Audience: adult.
• Product type: original.
• UV400 protection against UVA/UVB.

Available colours

• 33 - Brown uniform - glass.
• 4O - Mirror blue flash gradient - glass.
• 51 - Brown light gradient - glass.
• 58 - Green polarized - glass.
• G15 - Classic green - glass.
• M2 - Polarized brown gradient - plastic.
• M3 - Gray blue gradient polarized - glass.
• 4M - Green gradient - glass.
• B1 - Dark grey - glass.
• 3M - Blue gradient - glass.
• 43 - Brown gradient grey - glass.

Material, protection and lens options

Most options listed for the RB4340 are glass lenses, while M2 is listed as plastic. Depending on the selected code, you can choose classic, gradient, mirror or polarized lens options. All provide UV400 protection, blocking 100% UVA/UVB.

Why replace only the lenses

Your Ray-Ban RB4340 frame may still be in excellent condition even when the lenses are scratched. Replacing only the lenses is a smarter and more sustainable choice: you keep the frame that already fits you and renew the optical performance.

You can also explore our full range of original Ray-Ban lenses.

Authenticity and logo

Because these are original Ray-Ban lenses, they include the Ray-Ban logo; polarized variants include the Ray-Ban P marking. In our own workshop in Granada, qualified opticians check lenses with a lensmeter before dispatch.

We work with MEI Easy Fit Trend equipment and have helped repair over 600,000 glasses, handling more than 400,000 orders in 50+ countries since 2018.

Frequently asked questions

Will these fit RB2140 or RB2132? No. These lenses are for Ray-Ban RB4340 size 50. Other Wayfarer models may look close, but the lens shape and fit are different.

How do I know my frame is RB4340? Look inside the temple arm. The code RB4340 and size 50 must match before ordering these replacement lenses.

Are they original Ray-Ban lenses? Yes. They are original Ray-Ban lenses supplied through the official EssilorLuxottica channel and carry the Ray-Ban logo.

Are they glass or plastic? According to the product attributes, the listed options are glass except M2, which is plastic. Always check the selected colour code before confirming your order.

Do they offer real sun protection? Yes. These sunglass lenses provide UV400 protection, blocking 100% UVA/UVB.

Can I install them myself? They are fitted into the frame by pressure. If you are not used to working with eyewear, an optician is the safest option.