Product Summary

Universal Fit, Billet Aluminum, Black anodized

    Key Specs

    MFG. Part #23-801BK
    BrandAEM Electronics

    Need To Know

    Free Shipping on Orders Over $149

    Shipping Policies & FAQs

    Quick and Easy Returns

    Return Policy

    AEM Electronics 23-801BK Details

    AEM Tru-Time Adjustable Cam Gears increase horsepower and torque without having to change the camshaft(s) and are must-have items for engines that are milled, forced induction, high compression and/or utilizing aftermarket competition cams. Tru-Time cam gears enable users to match cam timing with their vehicle's tuning state by advancing or retarding the cam profile(s) in one-degree increments via true laser-etched markings. Precision-cut gear teeth ensure no premature wearing of the cam gear's belt surface and AEM's anodizing on the adjustable cam gear's teeth is lab-test proven as the hardest anodizing process on the market.

    AEM Tru-Time Adjustable Adjustable Cam Gears are available in a multi-spoke, five-bolt designs.


    • Increase horsepower and torque without any cam changes and are ideal for heavily modified engines
    • Grade-8, six-point hex bolts stand up to repeated adjustments and feature an integral washer flange for greater load distribution
    • True laser-etched markings on the leading edge of the gear allow for quick, accurate adjustments
    • CNC-machined from 6061-T6 billet aluminum
    • Belt surface is hard anodized
    • Recommended cam gear settings included
    • Manufactured and assembled in the USA


    23-801BK Honda 1997-2001 Prelude 2.2L/2156ccL4 [H22A4]
    23-801BK Honda 1997-2001 Prelude Type SH 2.2L/2156ccL4 [H22A4]
    23-801BK Honda 1993-1996 Prelude VTEC 2.2L/2156ccL4 [H22A1]

    CARB Warning

    For race/ off road use only

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

    AEM Electronics 23-801BK Specifications

    MFG. Part #23-801BK
    BrandAEM Electronics
    GTIN Code840879020255
    Material TypeBillet Aluminum
    FinishBlack anodized
    Sold in QuantityEach