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Bring your Ray-Ban RB4323 glasses back to life with a pair of original lenses, made for this model and bearing the original logo.
The inscription on the inside of the arm lets you confirm the model and exact lens measurement without visually comparing frames.
Example for guidance only. The position and order of the codes may vary depending on the frame.In an inscription such as RB4323 ··· 51□·· ···, each part has a purpose:
Frame material of the RB4323: Injected. This pair of original lenses keeps the shape, thickness, beveling and fit designed for this frame; you just need to confirm that the reference and lens size match.
We work with original replacement parts and help you confirm the model and lens size to reduce mistakes before we prepare your order.
Certified distributorReplacementLenses has been a certified EssilorLuxottica distributor since 2018.
Ray-Ban pair with the original markings for the variant.
We explain where to find RB4323 and how to tell the 51 mm lens sizes apart.
Coverage against manufacturing defects and after-sales support.
This model has a dedicated guide: follow the method shown in the video for your frame.
If your Ray-Ban RB4323 frame still fits well, replacing only the lenses is the smart way to make your sunglasses feel new again. These original Ray-Ban lenses restore the factory look, vision and UV protection at a much lower cost than buying a full new pair, with free shipping on qualifying orders and the confidence of purchasing from an official EssilorLuxottica distributor.
These Ray-Ban replacement lenses are made for the Ray-Ban RB4323 in size 51. The square lens shape, Base 6 curve and 56 mm lens diameter are the key details for a precise fit. Do not rely only on visual similarity: nearby Ray-Ban references may look close but use a different lens geometry.
Check the inside of the temple before ordering. You should find the RB4323 model reference and the 51 lens size printed on the frame. If your temple shows size 51 for the RB4323, these lenses are the matching replacement option.
The CRYSTAL variants offer the classic optical feel of Ray-Ban glass lenses, with clear vision and strong everyday scratch resistance. The 83 and 9A options are marked PLASTIC and polarized, helping reduce glare from roads, water and shiny surfaces. All options provide UV400 protection, blocking 100% of UVA and UVB rays.
Most of the time, the RB4323 frame is still perfectly usable while the lenses are scratched or worn. Replacing the lenses can cost less than buying a complete new pair, keeps the frame that already fits your face and is a more sustainable choice. You can also browse our full range of original Ray-Ban lenses.
As original Ray-Ban lenses, they include the Ray-Ban logo; polarized variants are marked Ray-Ban P. At ReplacementLenses.net we are an official EssilorLuxottica distributor, with our own optical workshop in Granada and qualified opticians checking lenses with a lensmeter. Since 2018, we have repaired over 600,000 glasses and shipped more than 400,000 orders to over 50 countries.
They are made for the Ray-Ban RB4323 in size 51. Always check both the RB4323 reference and the 51 size on the inside of your temple before ordering.
We recommend these lenses only for the RB4323 sunglasses reference listed here. Optical frames can have different grooves, thicknesses or fitting tolerances even when the shape looks similar.
Look for the lens size printed inside the temple. For this product, the key number is 51; if your frame shows another size, do not force the lenses into place.
Yes, these are original Ray-Ban lenses, not third-party compatible lenses. That is why they keep the Ray-Ban branding and, on polarized 83 and 9A options, the Ray-Ban P marking.
Yes, these replacement lenses include UV400 protection, blocking 100% of UVA and UVB rays. This is essential for safe, comfortable sunglass use.
The RB4323 uses a plastic/nylon frame and lenses are usually pressure-fitted with care. If you feel too much resistance or have no experience, we recommend visiting an optician.
Only the variants specifically marked polarized are polarized: 83 – POLARIZED BROWN – PLASTIC and 9A – GREEN POLARIZED – PLASTIC. These versions include the Ray-Ban P marking.
Ratings posted by customers for the Ray-Ban RB4323. We show the most recent ones.
“Excelente calidad y presentación. Recomendado!”
Published review“We haven’t received my product how am I supposed to make a review?”
Published review“The lens replacement kit made swapping out my lenses effortless.”
Published reviewThe price is for a complete pair: original Ray-Ban right and left lenses.
Yes. You can choose another available variant as long as you select the RB4323 model and the exact lens size of your frame.
Yes. On polarized variants, the marking may appear as Ray-Ban P, in addition to the discreet RB engraving.
No. Shape doesn't determine compatibility: these lenses are only for reference RB4323 and the lens size you choose.
Your review of Ray-Ban RB4323