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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Innovate Motorsports
Innovate Motorsports HBX-1 Heat-Sink O2 Sensor Bung Extender (3729)
$116.71
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
The Innovate Motorsports HBX-1 Heat-Sink Bung Extender (MPN 3729) is a precision-engineered solution for high-exhaust-gas-temperature (EGT) applications that cause wideband O2 sensor failure or timing errors. Specifically designed for turbocharged, rotary, and other high-performance engines, this extender protects sensitive electronics from thermal damage while maintaining accurate air-fuel ratio readings.
Standard Bosch LSU 4.2 and 4.9 sensors are rated for a maximum EGT of 1,700°F (930°C) and a housing temperature of 1,058°F (570°C) at the hex. When these thermal limits are exceeded, Innovate controllers typically display an "08- Sensor Timing Error." The HBX-1 addresses this by relocating the sensor away from the direct high-heat path without sacrificing signal integrity.
- Thermal Protection: Pulls the sensor 1.1875" (30mm) out of the original weld boss to significantly reduce applied temperatures.
- Integrated Heat Sink: Features a specialized finned design to dissipate heat away from the sensor housing.
- Maintains Accuracy: Precision-machined to ensure correct exhaust gas flow to the sensing element for reliable data.
- Compatibility: Optimized for Bosch LSU 4.2 and LSU 4.9 wideband sensors used in Innovate Motorsports kits.
- MPN: 3729
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1340 Cobb Dr, Unit 1, Eustis, FL 32736
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If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
Innovate Motorsports HBX-1 Heat-Sink O2 Sensor Bung Extender (3729)
$116.71
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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$116.71
$116.71
$116.71
The Innovate Motorsports HBX-1 Heat-Sink Bung Extender (MPN 3729) is a precision-engineered solution for high-exhaust-gas-temperature (EGT) applications that cause wideband O2 sensor failure or timing errors. Specifically designed for turbocharged, rotary, and other high-performance engines, this extender protects sensitive electronics from thermal damage while maintaining accurate air-fuel ratio readings.
Standard Bosch LSU 4.2 and 4.9 sensors are rated for a maximum EGT of 1,700°F (930°C) and a housing temperature of 1,058°F (570°C) at the hex. When these thermal limits are exceeded, Innovate controllers typically display an "08- Sensor Timing Error." The HBX-1 addresses this by relocating the sensor away from the direct high-heat path without sacrificing signal integrity.
- Thermal Protection: Pulls the sensor 1.1875" (30mm) out of the original weld boss to significantly reduce applied temperatures.
- Integrated Heat Sink: Features a specialized finned design to dissipate heat away from the sensor housing.
- Maintains Accuracy: Precision-machined to ensure correct exhaust gas flow to the sensing element for reliable data.
- Compatibility: Optimized for Bosch LSU 4.2 and LSU 4.9 wideband sensors used in Innovate Motorsports kits.
- MPN: 3729
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