Yamaha B4J-H3790-V0-00 - Thermostat Bypass is a Yamaha Genuine accessory. This thermostat bypass increases cab heat and reduces warm-up time on select Yamaha side-by-side vehicles.

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Key Features & Benefits

• Increases cab heat.
• Reduces warm-up time.

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Fits These Yamaha Models

• WOLVERINE RMAX2 1000 - 2021-2026
• WOLVERINE RMAX4 1000 - 2025-2026
• WOLVERINE RMAX4 1000 COMPACT - 2021-2026
• WOLVERINE X2 1000 - 2024-2026
• View More - see the Fitment tab for full compatibility details

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Frequently Asked Questions

What is Yamaha part B4J-H3790-V0-00?

B4J-H3790-V0-00 is the Yamaha Thermostat Bypass, a thermostat bypass that increases cab heat on select Wolverine models.

Is B4J-H3790-V0-00 a Yamaha Genuine accessory?

Yes. B4J-H3790-V0-00 is a Yamaha Genuine accessory.

Which Yamaha models fit B4J-H3790-V0-00?

Yamaha B4J-H3790-V0-00 fits the WOLVERINE RMAX2 1000 (2021-2026), WOLVERINE RMAX4 1000 (2025-2026), WOLVERINE RMAX4 1000 COMPACT (2021-2026), WOLVERINE X2 1000 (2024-2026), plus 2 additional models. View the full fitment list in the Fitment tab to confirm your exact model and year before ordering.

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WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.