HQRP Ignition Knock (Detonation) Sensor.

This is a replacement part of the highest quality. A vehicle knock sensor is a sensor screwed into the engine's block or cylinder head. It allows the engine to run with the ignition timing advanced as far as possible. The automobile's computer continues to advance the vehicle's timing until the knock sensor detects knock or detonation. After that the sensor sends the computer a signal to adjust the timing. This ensures greater FUEL ECONOMY and MORE POWER to get the most from your engine!


1991 Toyota 4Runner 3.0L V6

1990 Toyota 4Runner 3.0L V6

1989 Toyota 4Runner 3.0L V6

1988 Toyota 4Runner 3.0L V6

  • HQRP® Knock Sensor plus HQRP® Coaster;
  • Condition: New; OEM # 89615-20010 / 89615 20010 / 8961520010; Standard # KS-95 / KS95;
  • Replaces P/N # S8646 / 71-6747 / DKS541; Airtex # 5S2371;
  • Compatible with Toyota 4Runner 1989-1991;
  • 200 days warranty!

HQRP Knock Sensor for Toyota 4Runner 88 89 90 91 1988 1989 1990 1991 plus HQRP Coaster


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