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Toyota 4Runner Replacement Ignition Control Unit Information

Ignition control units are a major component incorporated into modern day electronic ignition systems, which is what's installed in your Toyota 4Runner. The ignition control unit, or ICU, is a small computer, one of several electronic control units typically installed in today's passenger vehicles. It's function is to send a precisely timed electric charge to each of the ignition coils, which then transmit this to the spark plugs through the spark plug wires. As the ICU ages through constant use it may begin to falter, which is not uncommon. When this happens, the electric charge it sends to the coils may weaken, become erratic and, after a time, fail altogether. At this point the only viable option is to replace the ignition control unit with a new part, such as those offered at We carry units for all Toyota 4Runners dating from 1984 to 2002.

Toyota 4Runner Ignition Control Unit They are available for the following Toyota 4Runner years: 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1994, 1993, 1992, 1991, 1990, 1989, 1988, 1987, 1986, 1984, 02, 01, 00, 99, 98, 97, 96, 94, 93, 92, 91, 90, 89, 88, 87, 86, 84. This part is also sometimes called Toyota 4Runner ICU. We stock ignition control unit parts for most Toyota models including Pickup, Camry, Celica, Land Cruiser, Tacoma, Corolla, MR2, T100, Tercel, Starlet, Paseo, Avalon, Solara, Tundra, Supra, Previa, RAV4 and Sienna.

We stock these Ignition Control Unit brands for the Toyota 4Runner: Standard Motor Products, Delphi, Genuine and API.

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Some of our Customer Reviews
Neither Satisfied Nor Dissatisfied
Reviewer: Dave Reed

Well we shall see I wont bs anyone about fast or anything tell I get it this, but the price was the best deal out there.

1990 Toyota 4Runner Ignition Control Unit

Somewhat Satisfied


1994 Toyota 4Runner Ignition Control Unit

Somewhat Satisfied
Reviewer: Good part / I will return

It is a good part. However, I ordered the wrong one.

1986 Toyota 4Runner Ignition Control Unit

Very Satisfied
Reviewer: Carol Hoffman

Keyless Remote Case was a perfect match to OEM. Well packaged and arrived quickly.

2006 Toyota 4Runner Ignition Control Unit