OE Quality
60-Day Returns

Walker 242-1041 Ignition Knock (Detonation) Sensor
Overview of Walker Products Ignition Knock Sensor 242-1041
The Walker Products Ignition Knock (Detonation) Sensor 242-1041 is designed for precise detection of engine knock in select Lexus and Toyota vehicles. This sensor helps maintain optimal engine performance by monitoring detonation and sending accurate signals to the engine control unit.
- Length: 43.85 mm for proper fitment
- Blade terminal type with one male terminal
- Single female square connector for secure connection
- Threaded end diameter of 12 mm for mounting compatibility
- Mounting hardware and wiring harness not included
Detailed Product Description
The Walker Products ignition knock sensor 242-1041 is engineered to detect engine detonation by sensing vibrations caused by knocking. It features a 43.85 mm length and a 12 mm threaded end diameter, ensuring compatibility with specific Lexus and Toyota models such as the Camry, Celica, Cressida, ES300, Highlander, MR2, RAV4, Solara, and Supra. The sensor includes a single blade terminal with a male gender and a single female square connector, designed for reliable electrical connection without additional wiring harnesses or mounting hardware.
Walker Products is a recognized brand line known for its focus on emission control components, providing sensors that meet OEM specifications for durability and performance. This ignition knock sensor is part of their emission control sensor lineup, emphasizing accurate engine monitoring to support emission compliance and engine efficiency.
Common Applications and Issues Addressed
- Detects engine knock to prevent potential engine damage
- Helps maintain proper ignition timing and fuel efficiency
- Prevents rough idling and engine hesitation caused by detonation
- Supports emission control systems by providing accurate knock data
- Reduces risk of engine misfire related to knock sensor failure
Installation Notes and Tips
- Ensure compatibility with Lexus and Toyota models listed before installation
- Use appropriate tools for the 12 mm threaded end to secure sensor
- Check connector orientation; the sensor uses a female square connector with one terminal
- Mounting hardware is not included; reuse existing hardware or source separately
- Verify sensor wiring and connections for proper electrical contact
Quality Assurance and Warranty
Walker Products ignition knock sensor 242-1041 is manufactured to meet industry standards for emission control sensors. While mounting hardware and wiring harness are not included, the sensor itself is built to provide reliable performance in compatible Lexus and Toyota vehicles. Warranty details should be confirmed with the parts provider or manufacturer documentation.
| Brand | Walker |
| Part Number | 242-1041 |
| Position | Walker Products |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Square |
| Length | 43.8500 |
| Mounting Hardware Included | No |
| Terminal Gender | Male |
| Terminal Quantity | 1 |
| Terminal Type | Blade |
| Threaded End Diameter | 12.0000 |
| Wiring Harness Included | No |
This part fits 50 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2003 | Toyota | Solara | 2.4L | L4 | N/A | Ignition Knock (Detonation) Sensor by DENSO.; Walker Products |
| 2002 | Toyota | Solara | 2.4L | L4 | N/A | Ignition Knock (Detonation) Sensor by DENSO.; Walker Products |
| 2001 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 2001 | Toyota | Highlander | 2.4L | L4 | N/A | 2001 and older models; Walker Products |
| 2001 | Toyota | RAV4 | 2.0L | L4 | N/A | To fit vehicles up to January 2004.; Walker Products |
| 2001 | Toyota | Solara | 2.2L | L4 | N/A | Walker Products |
| 2000 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 2000 | Toyota | RAV4 | 2.0L | L4 | N/A | Walker Products |
| 2000 | Toyota | Solara | 2.2L | L4 | N/A | Walker Products |
| 1999 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1999 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1999 | Toyota | RAV4 | 2.0L | L4 | N/A | Walker Products |
| 1999 | Toyota | Solara | 2.2L | L4 | N/A | Walker Products |
| 1998 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1998 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1998 | Toyota | RAV4 | 2.0L | L4 | N/A | Walker Products |
| 1997 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1997 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1997 | Toyota | RAV4 | 2.0L | L4 | N/A | Walker Products |
| 1996 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1996 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1996 | Toyota | RAV4 | 2.0L | L4 | N/A | Walker Products |
| 1995 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1995 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1995 | Toyota | MR2 | 2.2L | L4 | N/A | Walker Products |
| 1994 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1994 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1994 | Toyota | MR2 | 2.2L | L4 | N/A | Walker Products |
| 1994 | Toyota | MR2 | 2.0L | L4 | N/A | Walker Products |
| 1993 | Lexus | ES300 | 3.0L | V6 | N/A | Walker Products |
| 1993 | Toyota | Camry | 3.0L | V6 | N/A | Walker Products |
| 1993 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1993 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1993 | Toyota | MR2 | 2.2L | L4 | N/A | Walker Products |
| 1993 | Toyota | MR2 | 2.0L | L4 | N/A | Walker Products |
| 1993 | Toyota | Supra | 3.0L | L6 | N/A | Walker Products |
| 1992 | Lexus | ES300 | 3.0L | V6 | N/A | Walker Products |
| 1992 | Toyota | Camry | 3.0L | V6 | N/A | Walker Products |
| 1992 | Toyota | Camry | 2.2L | L4 | N/A | Walker Products |
| 1992 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1992 | Toyota | Cressida | 3.0L | L6 | N/A | Walker Products |
| 1992 | Toyota | MR2 | 2.2L | L4 | N/A | Walker Products |
| 1992 | Toyota | MR2 | 2.0L | L4 | N/A | Walker Products |
| 1992 | Toyota | Supra | 3.0L | L6 | N/A | Walker Products |
| 1991 | Toyota | Celica | 2.2L | L4 | N/A | Walker Products |
| 1991 | Toyota | MR2 | 2.2L | L4 | N/A | Walker Products |
| 1991 | Toyota | Supra | 3.0L | L6 | N/A | Walker Products |
| 1990 | Toyota | Celica | 2.2L | L4 | N/A | Sensor Only |
| 1990 | Toyota | Supra | 3.0L | L6 | N/A | Walker Products |
| 1989 | Toyota | Supra | 3.0L | L6 | N/A | Walker Products |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.