Temp Sender 300f1/8 27np

The VDO Temp Sender 300f1/8 27np is a precision engine temperature transmitter engineered for accurate coolant temperature monitoring in automotive applications. This sender converts coolant temperature into an electrical signal that feeds your dashboard gauge, giving you real-time insight into engine thermal conditions. Whether you're diagnosing overheating issues, tuning a modified engine, or restoring a classic vehicle, a reliable temperature sender is essential for engine protection and performance optimization.

VDO is the OEM standard for temperature sensing across multiple manufacturers, and the 323-057 model delivers that same factory-grade accuracy in the aftermarket. The 300°F maximum range with 1/8 NPT pipe thread connection allows direct integration into most engine blocks or coolant passage adapters without modification. The compact design (2.2 x 1.85 x 4.55 inches) fits tight engine bays, while the robust housing resists vibration and thermal cycling—critical when managing high-performance or turbocharged applications where precise coolant temperature data prevents detonation and guides fuel mapping decisions.

This sender benefits mechanics and enthusiasts upgrading factory gauge clusters, installing aftermarket gauge pods, or replacing worn OEM senders that cause erratic temperature readings. Installation requires a compatible gauge or engine control module with matching resistance curve—verify compatibility with your specific dashboard unit or ECU before purchase. The 1/8 NPT thread suits most domestic and imported engines; use appropriate adapter fittings if your coolant passage uses different NPT sizes. Quality temperature data directly influences tuning accuracy and engine longevity in street, track, and restomod builds.