What each code means
In an inscription such as RB6378 ··· ···□·· 140 you'll find these five details:
A pair of compatible arms, made to fit the RB6378 frame. Choose the arm color you prefer.
These compatible arms are made for the RB6378. Before you buy, check the model and length on the inscription inside your frame.
Read the inscription on the inside of your own frame to correctly identify each code.
In an inscription such as RB6378 ··· ···□·· 140 you'll find these five details:
Follow the visual guide and make the swap step by step.
We explain how to check the model and length, what's included in the pair, and that screws are not included.
Arms made to fit the RB6378.
Over 600,000 glasses restored and customers in more than 50 countries.
Clear check of the model and the 140 mm length.
Coverage against manufacturing defects and specialist support.
Elevate your eyewear with our Ray-Ban 6378 compatible arms, the perfect replacement for rejuvenating your glasses without sacrificing quality. Carefully crafted to fit your frame, these temples offer an ideal solution to keep your favorite frames in optimal condition.
Made from durable metal, these arms ensure resilience and longevity, ideal for everyday use. Their Phantos design not only adds a touch of sophistication and elegance but also guarantees a comfortable and secure fit. Available in gold and silver color variants, they allow you to customize your look, adapting effortlessly to your personal style and giving you the freedom to express yourself through your eyewear.
The Ray-Ban 6378 model is renowned for its contemporary and timeless design. Our compatible arms maintain that iconic style, ensuring you can replace worn or damaged components while preserving the chic aesthetic. With a length of 140mm, they are designed to integrate seamlessly with your frames, providing exceptional balance and support.
Choosing our Ray-Ban 6378 compatible arms means opting for a piece that blends fashion, function, and durability. If you’re looking for a cost-effective alternative to original Ray-Ban replacements that doesn’t compromise on quality and style, our arms are the ideal choice. Their metallic material is not only strong and lightweight but also offers a polished finish that complements any outfit.
At ReplacementLenses.net, we strive to deliver products that exceed our customers’ expectations. Our material selection and manufacturing process is focused on quality and detail, ensuring each piece meets high standards before reaching your hands. By purchasing from us, you’re choosing products designed to last and enhance your eyewear experience.
Renewing your glasses has never been easier. Discover our Ray-Ban 6378 compatible temples and revamp your favorite accessories with the assurance of choosing trustworthy products. Place your order today and experience the difference that a perfect fit and elegant design can make.

Ratings posted by customers for the Ray-Ban RB6378. We show the most recent ones.
“Very well worth the money.”
Published reviewThe price is for a complete pair: right and left arm.
No. They are independently manufactured compatible arms, made to fit the RB6378. They are not manufactured or authorized by Ray-Ban.
The length usually appears at the end of the inscription on the inside of the arm. Check that it matches your current frame.
The compatible arm colors we have for this model. On the product page you'll also see the original frame colors they match.
No. Screws are offered as an optional add-on because many frames allow you to reuse the existing ones.
Your review of Ray-Ban RB6378