1969-1972 Temperature Sender (ea)
The 1969–1972 Temperature Sender (ea) is a direct-fit reproduction engine coolant sensor sold individually (“ea” meaning each). It is specifically calibrated to communicate precise thermal resistance values to the dashboard instrumentation of classic General Motors vehicles equipped with factory-optional dashboard gauge packages rather than standard base-tier “dummy” warning lights.
Because GM heavily standardized its cylinder heads, intake manifolds, and dash cluster mechanics, this sender functions across a broad spectrum of classic platforms:
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- Chevrolet: 1969–1972 Chevelle, Malibu, El Camino, Monte Carlo, Camaro, Nova, and 1969 Impala / Full-Size.
Part Details & Connection Configuration
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- The “Eye” Attachment: This specific model year iteration relies on an authentic “eyelet” or threaded stud terminal connection profile at the top. The engine’s green telemetry wire terminal ring slips over this stud and is physically clamped down tightly via a small nut to prevent vibration-induced data drops.
- Thread Specs: Precision-machined with a standard 1/2″ x 14 NPTF (National Pipe Taper Fuel) external thread layout designed to seat flush into the engine intake manifold or the side cylinder head water jacket.
- Resistance Curve Calibration: Unlike generic auto-parts store replacements that skew factory dial positions, this unit is manufactured to the original GM standard resistance slope (350 Ohms Cold / 51 Ohms Hot). This ensures your in-dash pointer reflects true operating temps between 100°F and 250°F.
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