Ignition Knock (Detonation) Sensor - Toyota (89615-12040)

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OEM Ignition Knock (Detonation) Sensor – Toyota (89615-12040) x1

Maintain proper engine performance and protect against harmful detonation with this genuine OEM Toyota Ignition Knock Sensor. Engineered to detect abnormal combustion (knock) inside the engine, this sensor signals the ECU to adjust ignition timing to prevent internal damage.

A faulty knock sensor can lead to reduced power, poor fuel economy, hesitation under load, or a check engine light. Replacing it with a genuine OEM unit ensures accurate detection and factory-level reliability.

Product Details:

  • Genuine OEM Toyota Part

  • Part Number: 89615-12040

  • Direct factory replacement

  • Designed to meet Toyota’s original performance standards

  • Restores proper ignition timing adjustment

Why It’s Important:

  • Protects engine from detonation damage

  • Maintains optimal ignition timing

  • Improves drivability and engine response

  • Helps resolve knock sensor-related fault codes

Common Fitment:

  • Toyota 3.4L 5VZ-FE applications (Tacoma, 4Runner, T100)

  • Other Toyota models depending on engine configuration

(Please verify compatibility with your specific vehicle before purchase.)

Essential for stock, supercharged, or modified setups where accurate knock detection is critical.

OEM reliability. Engine protection. Factory performance.



Shipping and returnsShow
  • Please allow 3-4 business days for shipment. Tracking details are emailed once your package ships.
  • Used products are sold as-is and are not eligible for return.
  • New products can be returned within 30 days for a full refund if unopened and in original packaging.
  • Defective items can be returned within 30 days for a full refund, and we cover return shipping.
  • For all non-defective returns, the customer is responsible for return shipping costs.
  • Custom orders are non-returnable.
  • Defective claims require photos, videos, and your order number.
  • Refused shipments are treated as returns and may be refunded after inspection, less outbound/return shipping and any carrier fees.
  • Lost shipments are investigated through the carrier claim process; approved claims are resolved with a replacement or refund.
  • Damaged-in-transit claims should be reported promptly with packaging photos and order details so we can file with the carrier.
Contact supportQuestions about returns? Email photos/videos and your order number for faster support.
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