H&R 607557253 TRAK+ Wheel Adapters 5/112 to 5/112 66.5mm Center Bore 14x1.5 (Pair)

The H&R 607557253 TRAK+ Wheel Adapters allow fitment of wheels with a different bolt pattern to your vehicle. Designed for Mercedes applications with a 5/112 bolt pattern, 66.5mm center bore, and 14x1.5 thread pitch, these hubcentric adapters are sold as a pair. Available in thicknesses ranging from 20mm to 25mm, they move the wheel outward from the hub to widen the vehicle's track while simultaneously converting the wheel-side bolt pattern for non-standard wheel fitment.

Like the H&R TRAK+ DRM Series spacers, these wheel adapters mount hubcentrically to the vehicle hub exactly as a standard wheel spacer would. The wheel-side face features a different bolt pattern, enabling wheels from a different vehicle make or model to be fitted securely and correctly.

Key Features:

• Hubcentric design — fits precisely to the vehicle hub for a secure, vibration-free mount
• Proprietary aluminum/magnesium alloy construction — up to 70% lighter than a comparable steel product
• Hard anodized finish — provides a tough, durable, corrosion-resistant surface
• Widens vehicle track — improves lateral stability, lowers roll center, and enhances handling
• Bolt pattern conversion — allows non-standard bolt pattern wheels to be fitted
• Sold as a pair — two adapters included per package
• Winter-ready — suitable for use with dedicated snow tire and wheel sets

Specifications:

• Bolt Pattern: 5/112
• Center Bore: 66.5mm
• Thread Pitch: 14x1.5
• Thickness: 20mm–25mm (see product listing)

Wheel Bolt Guidelines:

If your application requires longer wheel bolts, follow these guidelines when ordering:

• New bolts must be longer than the originals by at least the thickness of the adapter used
• The bolt head style must match the existing bolts exactly (taper or round head)
• Bolt head type reference:
  • Taper 60° — end digit 01
  • Round head M12/d24mm or M14/d28mm — end digit 02
  • Round head M12/d26mm (e.g. OE VAG wheels) — end digit 03
  • Flat head for Porsche OE wheels M14x1.5 — end digit 06

Minimum Thread Engagement (Safety Reference):

• M12 x 1.25 — 8.0 turns (~10mm load-bearing shaft length)
• M12 x 1.50 — 6.5 turns (~10mm load-bearing shaft length)
• M12 x 1.75 — 6.5 turns (~12mm load-bearing shaft length)
• M14 x 1.25 — 9.0 turns (~12mm load-bearing shaft length)
• M14 x 1.50 — 7.5 turns (~12mm load-bearing shaft length)
• 1/2" UNF — 8.0 turns (~11mm load-bearing shaft length)

After installation, rotate the wheel by hand to confirm free rotation and verify that wheel bolts do not contact any brake components, ABS sensors, or surrounding hardware. Maximum clearance tolerance on some vehicles (e.g., Mercedes rear axle) may be as little as 2mm.