Original Ray-Ban RB3647M Ferrari Replacement Lenses

Price range: $17.99 through $22.99

Clothing Size Conversion Chart
Category US EU UK Chest (in) Waist (in) Hips (in)
Men XS 44 34 32-34 26-28 33-35
S 46 36 34-36 28-30 35-37
M 48 38 38-40 32-34 39-41
L 50 40 42-44 36-38 43-45
XL 52 42 46-48 40-42 47-49
Women XS 32 6 31-32 24-25 33-34
S 34 8 33-34 26-27 35-36
M 36 10 35-36 28-29 37-38
L 38-40 12-14 37-39 30-32 39-41
XL 42 16 40-42 33-35 42-44
Youth XS 128 7 26-28 23-24 26-28
S 134 8 28-30 24-25 28-30
M 140 10 30-32 25-26 30-32
L 146 12 32-34 26-27 32-34
XL 152 14 34-36 27-28 34-36
Pants Size Conversion Chart
CategoryUSEUUKWaist (in)Hip (in)Inseam (in)
Men284428283430
304630303631
324832323832
345034344033
365236364234
Women0324243430
2346253530
4368263631
63810273832
84012284032
Shoes Size Conversion Chart
CategoryUSEUUKFoot Length (in)
Men6395.59.25
7406.59.625
8417.510
9428.510.25
10439.510.625
114410.511
124511.511.25
134612.511.625
Women5352.58.5
6363.58.875
7374.59.25
8385.59.625
9396.510
10407.510.25
11418.510.625
12429.511
M (Unisex)5374.58.75
6385.59
7396.59.5
8407.510
9418.510.25
10429.510.625
114310.511
124411.511.25
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Description

Original Ray-Ban RB3647M Ferrari replacement lenses

Bring your Ray-Ban RB3647M Ferrari sunglasses back to clear, sharp vision without buying a new pair. These original Ray-Ban replacement lenses restore the look and optical performance of your Ferrari metal frame at a much lower cost – up to 60% less than replacing the complete sunglasses – with free shipping.

At ReplacementLenses.net, we work with genuine Ray-Ban spare lenses every day in our own optical workshop in Granada. We are an official EssilorLuxottica distributor, and qualified opticians check each lens with a lensmeter before dispatch.

Model compatibility

These lenses are made for the Ray-Ban RB3647M Ferrari, model 3647, size 51. They are intended for original Ray-Ban Ferrari collection metal frames with a round lens shape. Similar-looking Ray-Ban models can have different rim geometry, so the exact model code matters.

If your frame is marked RB3647M or 3647M and size 51, this is the correct replacement lens option. We do not recommend fitting them into replicas or imitation frames, as original Ray-Ban tolerances are required for proper seating.

How to identify your model and size

Check the inside of the temple arm. You should find the Ray-Ban model reference, usually followed by size information. For this product, the key details are model 3647M and size 51.

The bridge measurement does not define the replacement lens size. What you need to confirm is the RB3647M Ferrari model and the 51 lens size. If the marking is worn or unclear, send us a photo before ordering and our team will help you verify it.

Main features

  • Brand: Ray-Ban
  • Compatible model: RB3647M / 3647 Ferrari
  • Size: 51
  • Lens diameter: 54 mm
  • Shape: round
  • Lens material: glass
  • Lens curve: Base 6
  • Compatible frame material: metal
  • Collection: Ferrari
  • Use: sunglasses
  • Audience: adult
  • Product type: original

Available lens options

  • 31 – Green – Glass
  • 71 – Grey gradient – Glass
  • 30 – Silver flash mirror – Glass

You can match the colour of your current lenses or refresh the appearance of your RB3647M Ferrari while keeping genuine Ray-Ban quality.

Material, protection and lens finishes

These replacement lenses are made of glass and follow the Base 6 curve specified for this model. As original Ray-Ban sun lenses, they provide UV400 protection, blocking 100% of UVA and UVB rays.

The available lens options are green, grey gradient and silver flash mirror. No polarized version is listed for these options; if you need polarization, choose a variant that is explicitly marked as polarized.

Why replace only the lenses

The Ray-Ban RB3647M Ferrari metal frame is a special piece worth keeping. Replacing scratched or damaged lenses is cheaper, more sustainable and preserves the identity of your sunglasses without compromising on original optical quality.

Since 2018, we have repaired more than 600,000 pairs of glasses, processed over 400,000 orders and shipped to more than 50 countries. In many cases, a premium frame only needs fresh original lenses to feel new again.

Authenticity and logo

This is an original Ray-Ban replacement product. Original Ray-Ban lenses include the Ray-Ban logo and come through the official EssilorLuxottica channel.

Our opticians inspect every order with professional optical equipment. If you want to preserve the value and appearance of your Ferrari edition frame, choosing original Ray-Ban lenses is the right decision.

Frequently asked questions

Do these lenses fit the standard Ray-Ban RB3647?
These lenses are listed for the Ray-Ban RB3647M Ferrari, model 3647, size 51. Always check the code printed inside your frame before ordering.

Will they fit if my Ferrari frame has a different temple colour?
The temple colour normally does not affect lens fit. The important points are the original RB3647M Ferrari frame and the 51 size.

Are they compatible with RB3647N?
Compatibility with RB3647N should not be assumed. Even small differences in rim shape or lens curve can affect the fit.

Are these glass or plastic lenses?
These lenses are glass. That helps preserve the feel and optical character of the original Ray-Ban replacement.

Do they protect against UV rays?
Yes. These original Ray-Ban sun lenses provide UV400 protection, blocking 100% of UVA and UVB rays.

Can I install them myself?
The RB3647M Ferrari is a metal frame, so the rim is normally opened with a screw. If you are not used to handling metal eyewear, we recommend professional installation.

Is it worth replacing the lenses instead of buying new sunglasses?
For a Ferrari collection frame, very often yes. You keep the original frame and recover clear vision for a fraction of the price of a new pair.