SPAL SBL-TSI-185P-PKG Temp Sensor 165-185 DegF Plus Series

Vehicle Fitment

• Universal - compatible with any SPAL Plus Series (2nd generation) brushless fan.

Fitment Notes

• CRITICAL - generation mismatch risk: SPAL sells a separate, differently-numbered sensor (SBL-TS02) for the same 165°F-185°F range, but for the older Nuova-generation brushless fans, not Plus Series. The "TSI" designation in this part number (SBL-TSI-185P) specifically confirms Plus Series compatibility - do not substitute a same-temperature-range sensor without verifying it carries the correct generation prefix for the fan being installed.
• Using the wrong temperature trigger range for the application inverts fan behavior - the fan runs at FULL speed when cold and slows down as temperature rises, creating a real overheating risk on longer drives. Confirm the correct sensor range (165P, 185P, 195P, or 215P) matches the intended cooling circuit's actual operating temperature before installation.
• Diagnostic tip for a mismatched sensor: trying to override the fan to full speed via the blue wire and seeing it fail to run, only clock/wiggle, or run very slowly is a reliable sign the wrong sensor is installed.
• Requires the SBL-TS-HARN harness (to connect the sensor to the fan side) and one SBL-YAZ-PT10 pigtail harness per fan used - sold separately unless bundled.
• When running multiple fans, only one sensor and one SBL-TS-HARN are needed total, but a separate SBL-YAZ-PT10 is still required for each individual fan. Up to 12 fans can be run off one sensor.

Features

• 165°F to 185°F variable temperature trigger range
• 12VDC operation
• 3/8" NPT thread for direct installation into a radiator, cooler, or block port
• Standard Deutsch DT06-4S DT Series 4-socket connector
• Enables true variable-speed operation on compatible SPAL Plus Series brushless fans

Specifications

• Trigger range: 165°F (fan on/low speed) to 185°F (fan full speed)
• Voltage: 12VDC
• Thread size: 3/8" NPT
• Connector type: Deutsch DT06-4S, 4-socket
• Compatible generation: SPAL Plus Series (2nd gen brushless) only - not the older Nuova generation

Included Components

• 1x SPAL Plus Series temperature control sensor, 165-185°F

Product Description

The SPAL SBL-TSI-185P-PKG is a 165°F to 185°F variable temperature sensor for SPAL's Plus Series brushless fans, sitting in the middle of SPAL's four-sensor range lineup - above the transmission/oil-cooler-oriented 165P sensor, and below the higher-temperature 195P and 215P options typically used on hotter primary radiator circuits. This range fits well with many stock or mild-upgrade thermostat settings, where the fan should start ramping up around 165°F and hit full speed by 185°F.

A detail worth flagging clearly here: SPAL maintains a separate sensor line for their older Nuova-generation brushless fans, and one of those older sensors (SBL-TS02) covers this exact same 165°F-185°F range under a completely different part number. Because the temperature range alone doesn't distinguish between the two fan generations, it's easy to grab the wrong sensor if a customer searches by trigger temperature rather than confirming their specific fan's generation first - always verify the fan is a Plus Series unit before recommending this "TSI"-designated sensor.

As with SPAL's other Plus Series sensors, an incorrect sensor selection doesn't just underperform - it inverts the fan's logic, running fastest when cold and slowing as temperature rises, which is a genuine overheating risk rather than a minor tuning issue. This sensor still needs the SBL-TS-HARN and a per-fan SBL-YAZ-PT10 pigtail to complete a working install, neither of which is included here.