RT-0003 – RevHD 5/16 Heat Check Bolt

RT-0003 – RevHD 5/16 Heat Check Bolt

The RevHD Heat Check Bolt (also known as the TempBolt, part number RT-0003) is a visual temperature sensor designed for commercial vehicle hub caps that triggers a physical alert when the hub temperature reaches 250°F (121°C).

Acting similarly to a turkey thermometer, the center of the bolt pops out when overheating occurs, giving fleet managers and drivers an immediate visual warning of potential wheel bearing failure or hub damage before catastrophic failure happens.

Features

• Visual Warning Pin: Center pin pops out instantly at 250°F (121°C).
• Pre-Trip Safety: Allows rapid visual detection of wheel-end heat during walk-arounds.
• Failure Prevention: Catches early friction to avoid total wheel-off disasters.
• Universal Application: Fits standard 5/16″-18 thread holes on any hub cap.
• Severe-Duty Build: Engineered to withstand extreme off-road and heavy-haul environments.
• Direct Retrofitting: Replaces a single existing hub cap mounting bolt effortlessly.
• Included Free: Packaged automatically inside every new box of RevHD hub caps.

• Part Number: RT-0003 (also cross-referenced as REVRT0003 or RHRT-0003)
• Thread Dimensions: 5/16″-18 x 7/8″
• Torque Rating: 12–14 foot-pounds
• Activation Threshold: 250°F (121°C)
• Material: Heavy-duty metal/brass construction designed for severe-duty and off-road applications.