• B-G BG8178 Mazda steering wheel hub boss kit with dual PCD drilling
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B-G BG8178 Mazda Steering Wheel Hub / Boss Kit

B-G // BG8178

$179.00 NZD Exc. GST
$179.00 NZD Exc. GST Sale
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Need Help?

You can contact us via our chat box on our website, phone or email.

Aaron Harris: +64 27 449 9654 & aaron@harriscomms.co.nz

Rex Harris: +64 21 682 912 & rex@raceradios.co.nz

Shipping & Delivery

New Zealand:

  • Nationwide delivery for just $14 NZD ($19 for helmets).
  • Delivered by NZ Couriers or Post Haste.
  • Delivery Time: 1-7 days (avg. of 1.3).
  • Free Local Pickup is also available from 15 Michael Road, Paraparaumu 5032.

Australia:

  • Standard shipping costs $36.95 AUD ($49.95 for helmets).
  • Delivered by Asendia, DHL Express or FedEx.
  • Delivery Time: 7 - 14 days (avg. of 7.8).
  • For large items we may need to contact you if the freight is higher than expected.

Secure Payment Methods

We accept Apple & Google Pay, Debit or Credit Cards, and PayPal for easy and secure transactions.

Exclusively for our New Zealand customers, we offer Afterpay and Bank Transfer.

B-G BG8178 Mazda steering wheel hub / boss kit. The B-G product listing categorises BG8178 for Mazda applications. A vehicle-specific hub kit is required when fitting an aftermarket steering wheel.

Important Mazda fitment check: The exact Mazda model, year, steering-column spline, airbag system and horn wiring must be confirmed against the B-G application list before ordering. Do not rely on the Mazda brand alone.

Key features

  • Dual PCD drilling: 6 x 70 mm and 6 x 74 mm patterns.
  • Wheel compatibility: the listed patterns are commonly used by MOMO, Sparco, OMP, Simoni and Mountney M-Range wheels, plus Nardi, Personal and Raid wheels. Confirm your wheel's pattern before ordering.
  • Construction: produced in Italy from cast aluminium.
  • Included hardware: fixing screws, Allen key and horn-button retaining ring.

OMP steering-wheel options

For an OMP wheel, confirm that the wheel uses the matching 6 x 70 mm PCD before ordering. Relevant options include the OMP Corsica Steering Wheel and OMP Racing GP Steering Wheel.

Quick-release and QR boss options

For a removable steering-wheel setup, see the B-G bolt-on six-point quick release, B-G weld-on six-point quick release or B-G steering wheel quick release system. Confirm the hub, steering wheel PCD and installation type before ordering.

Related steering-wheel components

Before installation

This is a hub / boss kit only, not a complete steering wheel. Steering and airbag-related work should be completed by a qualified technician, with local road-use and vehicle-certification requirements checked before the vehicle returns to the road.

Harris Race Radios supplies genuine B-G products with factual NZ stock and support available for Australia where applicable. Contact us with your exact Mazda model and year if you need help checking the application before purchase. See the B-G Racing vehicle equipment collection for related cockpit hardware.

Protect and secure your steering wheel with the B-G steering wheel carry bag and B-G steering wheel lock tool.

Complete Your Racing Kit

Enhance your performance and safety with these complementary items. Our experts recommend pairing your B-G BG8178 Mazda Steering Wheel Hub / Boss Kit with:

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