Throttle Position Switch Sensor, Escort & Sierra Sapphire RS Cosworth 4X4

This Throttle Position Sensor fits Ford Escort RS Cosworth and Sierra Sapphire RS Cosworth 4x4 equipped with the YBT Big Turbo engine. Built to deliver accurate throttle input signals, it helps maintain smooth acceleration, proper fuelling, and reliable engine performance — essential for both road and tuned applications.

Manufactured to match original specifications, the PF09/04 sensor ensures straightforward installation with OEM-style mounting points and connector compatibility. Ideal for restorations, performance builds, or preventative maintenance on ageing Cosworth components.

Key Features:

• Part reference: PF09/04
• Direct replacement for original Cosworth throttle position sensor
• Compatible with Escort & Sierra Sapphire RS Cosworth 4x4 YBT (Big Turbo)
• Restores accurate throttle signal and drivability