AEM Evo 8 & IX Black Tru-Time Cam Gear

Product Overview

AEM Evo 8 & IX Black Tru-Time Cam Gear from AEM is identified by manufacturer part number 23-831BK. Tru-Time Adjustable Cam Gear, Black Anodized, 5-Bolt design, Fits Mitsubishi 4G63 engine.

Key Features

• Designed for the listed engine applications where exact engine family, timing setup, and installation procedure must be confirmed.
• New AEM component supplied in the configuration shown and described on this page.
• Exact application and included components should be verified before installation.

Fitment

Confirm AEM 23-831BK against the complete vehicle, engine, trim, and application notes before ordering.

• 2003-2006 Mitsubishi Lancer Evolution
• 2005-2006 Mitsubishi Lancer Evolution MR
• 2005-2006 Mitsubishi Lancer Evolution RS
• 2006 Mitsubishi Lancer Evolution SE

Use the store vehicle selector and the current manufacturer application data for final confirmation.

Specifications

What’s Included

The exact cam gears product identified by AEM 23-831BK. Sensors, wiring, fittings, hardware, tuning, or accessories are included only when specifically shown or stated.

About AEM

AEM develops performance electronics, monitoring, fueling, ignition, and water-methanol products for enthusiast and motorsport applications. Black Ops Auto Works organizes AEM listings by exact part number and available application data to support accurate product selection.

Related Parts

• AEM 88-95 Honda Civic/ 93-95 Del Sol S & Si Black Tru-Time Cam Gear
• AEM 92-01 Honda Prelude Si VTEC/ Base & SH True Black Tru-Time Cam Gear
• Shop the complete AEM collection

Frequently Asked Questions

What is the 23-831BK?

It is the AEM cam gears product described on this page in the listed configuration.

How do I confirm fitment?

Match the complete vehicle, engine, trim, system, connector, dimensions, and every application note before ordering.

Can I select this product by appearance alone?

No. Similar-looking components can use different connectors, dimensions, ranges, ports, calibrations, or mounting points.

What is included?

Only the components specifically identified on this product page are included; related sensors, wiring, fittings, hardware, or accessories may be separate.

Does this product require tuning?

Tuning depends on the product and vehicle. Changes involving airflow, fueling, ignition, boost, or water-methanol delivery may require calibration.

Is professional installation recommended?

Yes when installation involves fuel, wiring, pressurized systems, sensor scaling, engine timing, or calibration.

Is this product new?

Yes. The item condition is new unless this page explicitly states otherwise.

What should I verify before checkout?

Confirm the application, specifications, included items, connector or plumbing requirements, and installation notes.

Installation Instructions

1. Confirm AEM 23-831BK and the complete application before disassembly.
2. Inspect the component and compare every connector, port, mounting point, dimension, and included item before modifying the vehicle.
3. Follow current AEM instructions and the vehicle service procedure for wiring, plumbing, fasteners, sensor placement, and calibration.
4. Route wiring, hoses, and components away from heat, sharp edges, moving parts, and electrical noise sources.
5. Test the complete system, check for leaks or faults, and verify safe operation before driving.

California Proposition 65 Warning

WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.