AEM Black Adjustable Tru-Time Cam Gears for Evo 4-9


AEM-23-831BK (x2)


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AEM Tru-Time black anodized adjustable cams gears for the Evo 4/5/6/7/8/9 models. Sold as a pair or individually. Please note, the MIVEC Evo 9 models must use the OEM intake cam gear. For Evo 4-8, the same gear fits both cams.

Vehicle Fitment:
1996-2006 Evolution IV V VI VII VIII IX*
*Does not replace the MIVEC Evo 9 intake cam gear

Cam Gear: Fitment:
Intake Cam Gear Fits Evo 4/5/6/7/8
Does not fit Evo 9
Exhaust Cam Gear Fits Evo 4/5/6/7/8/9

More Info:
AEM Tru-Time Adjustable Cam Gears increase horsepower and torque without having to change the camshafts and are must-have items for engines that are milled, forced induction, high compression and/or utilizing aftermarket competition cams.

AEM gears enable users to match cam timing with their vehicle's tuning state by advancing or retarding the cam profile in one-degree increments via true laser-etched markings.

Precision-cut gear teeth ensure no premature wearing of the belt surface and AEM's anodizing on the gear teeth is lab-test proven as the hardest anodizing process on the market.

We are sorry, but discount codes are not available for AEM products.

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Customer Reviews

Based on 3 reviews
Jason Holland (Gurnee, IL, US)
Aem Tru Time

Easy install - fits factory Evo 8 cam bolts with no modifications needed. Installed on gsc camshafts & look great!

Aem cam gears

Description, prices, and shipping was fantastic as always! Thanks!

Thanks, Landon! We appreciate your business and your feedback.

Wayne Steele (Novelty, OH, US)
Best prices and good service

I was looking for a trusted site to order parts from for my swap and was stm was one of the preferred sites so I compared it to others and it by far has the best prices. My items were shipped on time and quickly.

Glad we were able to help you out, Wayne. Thank you for shopping with us, and trusting us to take care of your order. Enjoy!

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