Mercedes-Benz Hubcentric Wheel Spacers – 5×112 PCD, 66.6mm Bore | UK Made | Brightstone Engineering

Product Description:

These Mercedes-Benz wheel spacers are precision CNC-machined hubcentric track widening spacers, built specifically for Mercedes-Benz 5×112 (5x112) vehicles. Every pair is bored to exactly 66.5mm centre bore to sit flush on the hub — no vibration, no balancing issues, no adaptors needed.

Fitting Mercedes-Benz wheel spacers pushes the wheel outward, reducing your ET offset and correcting wheel offset, widening your track width, and giving your Mercedes a flush fitment stance that closes the wheel arch gap and fills the arches properly. Compatible with Mercedes-Benz wheel spacers 5x112 fitment across the C-Class, E-Class, S-Class, CLS, GLC, GLE, GLS, AMG GT and more.

Available in 10mm, 15mm, 20mm, and 25mm. Need a custom thickness? Contact us.

Why Brightstone Engineering Spacers?

• UK manufactured — machined in-house by a UK manufacturer, not imported and relabelled
• True hubcentric fitment — 66.5mm bore matches the Mercedes-Benz hub lip exactly for vibration-free running
• 6082-T6 billet aluminium — aerospace-grade alloy, strong and lightweight
• Supplied with extended wheel bolts — correct M14×1.5 ball / radius-seat hardware for Mercedes-Benz included in every kit
• Brake caliper clearance — adding wheel spacers creates additional clearance between the wheel and brake caliper, ideal if you're running or planning larger aftermarket brake calipers or coilovers
• Lifetime guarantee — covers materials and manufacturing defects

What's Included:

• 2 × hubcentric Mercedes-Benz wheel spacers (your chosen thickness)
• 10 × extended M14×1.5 ball / radius-seat wheel bolts

Fitment:

These Mercedes-Benz wheel spacers are designed for vehicles with a 5×112 PCD (pitch circle diameter) wheel bolt pattern and 66.5mm hub bore (centre bore), supplied with M14×1.5 ball / radius-seat extended wheel bolts. Compatible models include the C-Class (W204, W205, W206), E-Class (W211, W212, W213, W214), S-Class (W221, W222, W223), CLS (C218, C219, C257), GLC (X253, X254), GLE (W166, W167), GL-Class / GLS (X164, X166, X167), GLA (H247), and AMG GT (X290, C192) — including all 4MATIC and AMG variants where applicable.

Check your PCD and centre bore before ordering — always verify your exact specification before fitting.

If you're unsure, contact us and we'll confirm the correct fitment before you order.

All models above use 5×112 PCD and M14×1.5 ball / radius-seat wheel bolts. Centre bore is 66.5mm across most models. Always confirm your vehicle's exact PCD, hub bore and bolt thread before ordering. If you're unsure, contact us and we'll confirm fitment for you.

Installation:

Professional fitting recommended. Before fitting, you must check the bolts against your car.

1. Measure a bolt from your car. Remove one of your existing wheel bolts and measure it. Measure the threaded part only — from where the thread starts to the tip, not including the head. The threaded part of the new bolt must be longer than this by the thickness of the spacer you've bought: for example, a bolt with 28mm of thread used with a 20mm spacer needs a bolt with 48mm of thread.
2. Compare it with the bolts you'll be fitting — whether supplied by us or sourced yourself. Thread size, pitch, seat type and head must match your original.
   What is the seat? It's the shape of the underside of the bolt head — the part that presses against your wheel. It's usually either cone-shaped (called "conical" or "60° taper") or rounded (called "ball" or "radius"). It must match the shape of the bolt holes in your wheel: the wrong shape only touches the wheel on a thin edge and can work loose. Simple check: hold your old bolt next to the new one — the underside of the heads should be the same shape.
3. Check the extra length. The threaded part of the new bolt must be longer than the threaded part of your original by the thickness of the spacer you've bought.
4. Confirm thread engagement. Once fitted, every bolt must engage the hub by at least as much thread as your original bolt did without a spacer — never less.
   What is thread engagement? It's how much of the bolt's thread is actually screwed into the hub — this is what holds your wheel on. The spacer moves the wheel further out, which is why the bolt needs to be longer. Simple check: when you take out an original bolt, count how many full turns it takes to come out once it's loose. After fitting the spacer and wheel, each new bolt must take at least that many full turns to screw in by hand before its head reaches the wheel. Fewer turns means less thread holding the wheel on — do not drive the car. If a bolt stops turning before its head reaches the wheel, it may be too long or cross-threaded — don't force it. Once every bolt is in, tighten them to your vehicle manufacturer's specified torque setting using a torque wrench — check your owner's handbook or a main dealer for the correct figure for your car.
5. If anything doesn't match, do not fit them — contact us first.

We make every effort to send the correct bolts, but it is the buyer's and installer's responsibility to verify them before use.

Re-check all wheel bolts after the first 50–100 miles.

Shipping & Guarantee:

• Free UK delivery on all orders
• International shipping available
• Lifetime guarantee on all Brightstone spacers