URD Exhaust Cam Gears, 4.0L V6

5.00 out of 5 based on 1 customer rating




These are the same cam gears we have been shipping in our UCON-EMS kits for many years.

They replace the stock exhaust cam gears found on the original single VVTi 1GR-FE 4.0L engine found in the 03-09 4Runner, 05-15 Tacoma, 07-09 FJ Cruiser, and the 05-09 Tundra as well as many other vehicles found in foreign markets.

The URD Cam Gears modifies the timing of the exhaust cam to allow for better cylinder emptying on the exhaust stroke, which in turn allows for better cylinder filling on the intake stroke with less hot end gas hanging around to heat up the incoming cylinder charge.  This allows for great flow through the engine and allows for more aggressive spark timing.

The URD Cam Gears work great for Normally Aspirated and Supercharged applications.   Not recommended for Turbos or other applications causing high exhaust pressure.  Not recommended for aftermarket camshafts.

The URD Cam Gears are made in the USA by an aerospace company specializing in precision gears for aircraft and spacecraft and are properly ground and heat-treated for trouble-free service in your engine.

Year Make Model Engine
Year Make Model Engine
2015 Toyota Tacoma V6 4.0L 1GR-FE
2014 Toyota
2007 - 2009 Toyota FJ Cruiser V6 4.0L 1GR-FE
2006 - 2013 Toyota Tacoma V6 4.0L 1GR-FE
2006 - 2009 Toyota Tundra V6 4.0L 1GR-FE
2006 - 2009 Toyota 4Runner V6 4.0L 1GR-FE
2005 Toyota
2003 - 2004 Toyota 4Runner V6 4.0L 1GR-FE

Additional information

Weight 1 lbs
Dimensions 2 × 4 × 6 in

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1 review for URD Exhaust Cam Gears, 4.0L V6

  1. caymanmclaren1 (verified owner)

    The exhaust cam gears have drastically improved the overall throttle response of my vehicle and the engine torque. The hardest part of the installation was loosening the existing sprocket bolts. Good modification for the price. Thanks.

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