VDO 1/8" NPT Oil Temperature Sender

This VDO oil temperature sender is a high-quality sensor designed to provide accurate engine oil temperature readings when used with compatible VDO oil temperature gauges. Rated up to 149°C, it is ideal for monitoring oil temperature on performance, classic, and aircooled or water-cooled engines where oil temperature control is critical to engine longevity.

The sender features a 1/8″ 27 NPT threaded fitting, making it a common and versatile choice for installation into engine cases, oil sumps, full-flow fittings, sandwich plates, or remote oil lines—depending on your engine setup.

What this part does and how it works

The oil temperature sender measures the temperature of the engine oil at its mounting point and sends a corresponding electrical signal to the gauge. As oil temperature rises or falls, the sender’s internal resistance changes, allowing the gauge to display real-time temperature data. Monitoring oil temperature helps:

• Prevent overheating

• Identify cooling or lubrication issues early

• Protect bearings, seals, and internal engine components

Accurate oil temperature information is especially important on older or modified engines where factory instrumentation may be limited or nonexistent.

Specifications

• Brand: VDO

• Thread: 1/8″ – 27 NPT

• Maximum temperature: 149°C

• Application: Oil temperature measurement

• Compatibility: Designed for VDO oil temperature gauges

Fitment notes

• Ensure the mounting location is suitable for oil temperature measurement

• Always verify thread type (NPT vs. metric) before installation

• Use thread sealant suitable for oil systems—do not overtighten

• Confirm gauge compatibility before fitting

This sender is a reliable, precision component trusted by enthusiasts and professionals alike, making it an excellent choice for engine monitoring, upgrades, or restorations.