HBX-1 Heat Sink Bung Extender 3729

Part Number: 3729
Innovate Motorsports

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HBX-1 Heat Sink Bung Extender Description

  • Provides thermal isolation in high-temperature (>500º C) applications
  • Heat sink design screws into new or existing 18mm bung
Innovate Motorsports gauges are made to the highest quality to generate the most accurate results, and this Heat-Sink Bung Extender (part no. 3729) perfectly complements the existing range of sensors and gauges available across the range.


BrandInnovate Motorsports
Part Number3729
WarrantyManufacturers Warranty


We offer FREE shipping on all orders over $99 to metropolitan or regional addresses (excludes big and bulky items).

Orders of less than $99 and orders shipped to rural addresses are subject to a shipping fee that is calculated at checkout. See full shipping details here.


We offer 100% Fitment Guarantee, but if you choose to return an item we offer a generous 60 day returns policy with a full refund. See returns policy and fitment information here.


All products sold by Sparesbox are sold under the Manufacturer’s warranty and conditions from the date of purchase, unless otherwise stated on the item.

Warranty claims must meet certain criteria and be sent to Sparesbox with a receipt to be eligible for a refund. See full warranty claim criteria here.

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