OE Quality
60-Day Returns

Standard Ignition LX-721 Ignition Control Module
Overview of Standard Ignition LX-721 Ignition Control Module
The Standard Ignition LX-721 ignition control module is designed for distributorless ignition systems, providing reliable performance for various Toyota, Lexus, and Geo vehicles. This module is engineered to mount securely on the fender using a bolt-on attachment method, ensuring a stable fit for your vehicle's ignition system.
- Compatible with Toyota, Lexus, and Geo models including Camry, Corolla, 4Runner, ES300, GS300, Land Cruiser, LS400, LX450, MR2, Paseo, Previa, Prizm, RAV4, SC300, SC400, Supra, T100, Tacoma, and Tercel
- Distributorless ignition type for modern ignition systems
- Five male blade terminals with one female rectangular connector
- 12-volt voltage rating suitable for standard automotive electrical systems
- Bolt-on attachment method for secure mounting on the vehicle fender
Detailed Product Description
The Standard Ignition LX-721 ignition control module is a critical component for distributorless ignition systems found in many Toyota, Lexus, and Geo vehicles. It features a single female rectangular connector with five male blade terminals, designed to interface seamlessly with your vehicle's wiring harness. The module operates at 12 volts and mounts directly to the fender using bolts, providing a stable and durable installation. This part does not include mounting hardware, coil, grease pack, instructions, or mounting brackets, so ensure you have the necessary tools and components for installation.
Common Applications and Problem Resolution
- Resolves ignition misfires and inconsistent engine performance
- Addresses no-start conditions related to ignition control failure
- Eliminates rough idling caused by faulty ignition modules
- Corrects issues with distributorless ignition timing and spark delivery
- Improves overall engine reliability in compatible Toyota, Lexus, and Geo models
Installation Notes and Tips
- Ensure the vehicle battery is disconnected before installation to prevent electrical shorts
- Mount the module securely on the fender using appropriate bolts (not included)
- Verify connector orientation and terminal alignment before securing the module
- Check for corrosion or damage on blade terminals and clean if necessary
- Consult vehicle-specific service manuals for torque specifications and wiring diagrams
Quality Assurance and Warranty
Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. The LX-721 ignition control module undergoes rigorous quality control testing to maintain consistent functionality. While specific warranty details are not provided, Standard Ignition typically offers limited warranties covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.
| Brand | Standard Ignition |
| Part Number | LX-721 |
| Attachment Method | Bolt On |
| Coil Included | No |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Grease Pack | No |
| Hardware Included | No |
| Instructions Included | No |
| Mounting Bracket(s) Included | No |
| Mounting Location | Fender |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
This part fits 78 vehicles. Search below:
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1999 | Toyota | Celica | N/A | ||||
| 1998 | Toyota | Celica | N/A | ||||
| 1997 | Geo | Prizm | N/A | ||||
| 1997 | Lexus | GS300 | N/A | ||||
| 1997 | Lexus | LS400 | N/A | ||||
| 1997 | Lexus | LX450 | N/A | ||||
| 1997 | Lexus | SC300 | N/A | ||||
| 1997 | Lexus | SC400 | N/A | ||||
| 1997 | Toyota | 4Runner | 2.7L | L4 | N/A | To 6/96 | |
| 1997 | Toyota | Celica | N/A | ||||
| 1997 | Toyota | Corolla | N/A | ||||
| 1997 | Toyota | Land Cruiser | N/A | ||||
| 1997 | Toyota | Previa | N/A | ||||
| 1997 | Toyota | RAV4 | N/A | ||||
| 1997 | Toyota | Supra | 3.0L | L6 | N/A | ||
| 1997 | Toyota | T100 | 2.7L | L4 | N/A | ||
| 1997 | Toyota | Tacoma | 2.4L | L4 | N/A | ||
| 1996 | Geo | Prizm | N/A | ||||
| 1996 | Lexus | GS300 | N/A | ||||
| 1996 | Lexus | LS400 | N/A | ||||
| 1996 | Lexus | LX450 | N/A | ||||
| 1996 | Lexus | SC300 | N/A | ||||
| 1996 | Lexus | SC400 | N/A | ||||
| 1996 | Toyota | 4Runner | 2.7L | L4 | N/A | ||
| 1996 | Toyota | Camry | 2.2L | L4 | N/A | ||
| 1996 | Toyota | Celica | N/A | ||||
| 1996 | Toyota | Corolla | N/A | ||||
| 1996 | Toyota | Land Cruiser | N/A | ||||
| 1996 | Toyota | Previa | N/A | ||||
| 1996 | Toyota | RAV4 | N/A | ||||
| 1996 | Toyota | Supra | 3.0L | L6 | N/A | ||
| 1996 | Toyota | T100 | 2.7L | L4 | N/A | ||
| 1996 | Toyota | Tacoma | 2.4L | L4 | N/A | ||
| 1996 | Toyota | Tacoma | 2.7L | L4 | N/A | ||
| 1995 | Geo | Prizm | 1.8L | L4 | N/A | ||
| 1995 | Lexus | GS300 | N/A | ||||
| 1995 | Lexus | LS400 | N/A | ||||
| 1995 | Lexus | SC300 | N/A | ||||
| 1995 | Toyota | Camry | 2.2L | L4 | N/A | ||
| 1995 | Toyota | Celica | 2.2L | L4 | N/A | ||
| 1995 | Toyota | Corolla | 1.8L | L4 | N/A | ||
| 1995 | Toyota | Land Cruiser | N/A | ||||
| 1995 | Toyota | MR2 | 2.2L | L4 | N/A | ||
| 1995 | Toyota | Previa | N/A | ||||
| 1995 | Toyota | Supra | 3.0L | L6 | N/A | ||
| 1995 | Toyota | T100 | 2.7L | L4 | N/A | ||
| 1995 | Toyota | Tacoma | 2.4L | L4 | N/A | ||
| 1995 | Toyota | Tacoma | 2.7L | L4 | N/A | ||
| 1994 | Lexus | GS300 | N/A | ||||
| 1994 | Lexus | LS400 | N/A | ||||
| 1994 | Lexus | SC300 | N/A | ||||
| 1994 | Toyota | Camry | 2.2L | L4 | N/A | ||
| 1994 | Toyota | Celica | 2.2L | L4 | N/A | ||
| 1994 | Toyota | Land Cruiser | N/A | ||||
| 1994 | Toyota | MR2 | 2.2L | L4 | N/A | ||
| 1994 | Toyota | Paseo | N/A | ||||
| 1994 | Toyota | Previa | N/A | ||||
| 1994 | Toyota | Supra | 3.0L | L6 | N/A | ||
| 1994 | Toyota | T100 | 2.7L | L4 | N/A | ||
| 1993 | Lexus | ES300 | N/A | ||||
| 1993 | Lexus | GS300 | N/A | ||||
| 1993 | Lexus | SC300 | N/A | ||||
| 1993 | Toyota | Camry | 2.2L | L4 | N/A | ||
| 1993 | Toyota | Camry | 3.0L | V6 | N/A | ||
| 1993 | Toyota | Celica | 2.2L | L4 | N/A | ||
| 1993 | Toyota | Land Cruiser | N/A | ||||
| 1993 | Toyota | MR2 | 2.2L | L4 | N/A | ||
| 1993 | Toyota | Paseo | N/A | ||||
| 1992 | Lexus | ES300 | N/A | ||||
| 1992 | Lexus | SC300 | N/A | ||||
| 1992 | Toyota | Camry | 2.2L | L4 | N/A | ||
| 1992 | Toyota | Camry | 3.0L | V6 | N/A | ||
| 1992 | Toyota | Celica | Coupe | 2.2L | L4 | N/A | |
| 1992 | Toyota | Celica | Hatchback | 2.2L | L4 | N/A | |
| 1992 | Toyota | MR2 | 2.2L | L4 | N/A | Coil Inside Distributor | |
| 1992 | Toyota | Paseo | N/A | ||||
| 1992 | Toyota | Tercel | N/A | ||||
| 1991 | Toyota | Tercel | N/A |
* 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.