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15mm Hub-Centric Wheel Spacer Kit — Audi 5x112 66.56 CB, Radius Seat Bolts
// heads upDon’t get duped.Other brands sell the bolts separately. Ours are in the box — all 10.

Representative kit photo — tap “Exact spec” for this part’s bolt pattern and center bore.

Audi · 5x112

15mm spacer kit

15mm Hub-Centric Wheel Spacer Kit — Audi 5x112 66.56 CB, Radius Seat Bolts

Part# PF51126615A-1415BB

$139.95per pair (one axle)

Thickness (per side)

5mmSpacers only12.5mmKit w/ bolts15mmKit w/ bolts20mmKit w/ bolts

Lug bolt seat — match your wheels

RadiusFor factory (OEM) wheelsConicalFor most aftermarket wheels
Checking fitment…
Checking stock
Ships from our warehouseEasy returns

What’s in the box

  • 2 × 15mm hub-centric wheel spacers (5x112, 66.56 CB)
  • 10 × M14x1.5 radius seat lug bolts, sized for this spacer
Radius (Ball) Seat bolts — the rounded seat used by most factory (OEM) wheels. Running aftermarket wheels? Choose the Conical option.

Specifications

Part numberPF51126615A-1415BB
TypeHub-centric wheel spacer
ApplicationAudi
Bolt pattern5x112
Center bore66.56 mm
Thickness15 mm per spacer
Quantity2 spacers (one axle)
AxleFront or rear
Lug bolts includedYes — 10 pcs
Bolt threadM14x1.5
Bolt seatRadius (Ball) Seat

Why Project Fit

  • Hub-centric design. The center bore matches your hub (66.56mm) so the wheel is centered by the hub, not the bolts.
  • Exact bolt pattern. Drilled for 5x112 — no adapters, no guesswork.
  • Bolts sized for the spacer. The kit’s M14x1.5 bolts are the right length for a 15mm spacer, with the radius seat your wheels need.
  • Sold in pairs. Two matched spacers per set so both sides of the axle sit at the same track width.
  • Install tip. Clean the hub face, torque bolts to factory spec in a star pattern, and re-torque after 50 miles.

Vehicle fitment

YearsMakeModelSubmodelNotes
2009–2020AudiA4All
2010–2014AudiA5All
2012–2018AudiA6All
2022–2023Audie-tron SAll
2022–2023Audie-tron S SportbackAll
2020–2023Audie-tron SportbackAll
2025AudiQ5All
2010–2023AudiQ5All
2025–2026AudiQ7All
2017–2023AudiQ7All
2025–2026AudiQ8All
2019–2023AudiQ8All
2020–2023AudiR8AllRear · Gen 2
2017–2018AudiR8AllRear · Gen 2
2013–2015AudiRS5All
2014–2018AudiRS7All
2018–2025AudiS4All
2009–2016AudiS4All
2008–2025AudiS5All
2020–2022AudiS6All
2013–2018AudiS6All
2013–2018AudiS7All
2013–2018AudiS8All
2025AudiSQ5All
2014–2023AudiSQ5All
2020–2021AudiSQ8All

Extra / replacement bolts

M14x1.5 R14 Radius Seat Lug Bolts — 32mm, Black32mm
M14x1.5 · R14 Radius

32mm Black Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock
M14x1.5 R14 Radius Seat Lug Bolts — 32mm, Chrome32mm
M14x1.5 · R14 Radius

32mm Chrome Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock
M14x1.5 R14 Radius Seat Lug Bolts — 38mm, Black38mm
M14x1.5 · R14 Radius

38mm Black Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock
M14x1.5 R14 Radius Seat Lug Bolts — 38mm, Chrome38mm
M14x1.5 · R14 Radius

38mm Chrome Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock
M14x1.5 R14 Radius Seat Lug Bolts — 42mm, Black42mm
M14x1.5 · R14 Radius

42mm Black Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock
M14x1.5 R14 Radius Seat Lug Bolts — 42mm, Chrome42mm
M14x1.5 · R14 Radius

42mm Chrome Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock
M14x1.5 R14 Radius Seat Lug Bolts — 47mm, Black47mm
M14x1.5 · R14 Radius

47mm Black Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock
M14x1.5 R14 Radius Seat Lug Bolts — 47mm, Chrome47mm
M14x1.5 · R14 Radius

47mm Chrome Lug Bolts

10 pcs · Radius (Ball) Seat
$43.95Checking stock

Other sizes

5mm Hub-Centric Wheel Spacers — Audi / Mercedes / VW / BMW G20 5x112 66.56 CB5mm
Audi / Mercedes / VW / BMW G20 · 5x112

5mm Wheel Spacers

66.56 CB · Spacers only
$99.95Checking stock
12.5mm Hub-Centric Wheel Spacer Kit — Audi 5x112 66.56 CB, Radius Seat Bolts12.5mm10 bolts included
Audi · 5x112

12.5mm Wheel Spacer Kit

66.56 CB · Radius seat bolts incl.
$131.95Checking stock
12.5mm Hub-Centric Wheel Spacer Kit — Audi 5x112 66.56 CB, Conical Seat Bolts12.5mm10 bolts included
Audi · 5x112

12.5mm Wheel Spacer Kit

66.56 CB · Conical seat bolts incl.
$131.95Checking stock
15mm Hub-Centric Wheel Spacer Kit — Audi 5x112 66.56 CB, Conical Seat Bolts15mm10 bolts included
Audi · 5x112

15mm Wheel Spacer Kit

66.56 CB · Conical seat bolts incl.
$139.95Checking stock