AEM Tru-Time adjustable cam gears let you advance or retard cam timing in one-degree steps via laser-etched markings to match camshaft timing to your engine's tuning state - ideal for milled, high-compression, forced-induction, or aftermarket-cam builds. CNC-machined from 6061-T6 billet aluminum with grade-8 six-point hardware and AEM's hard-anodized belt surface for durability.
| Type | Tru-Time adjustable cam gear |
| Engine | Honda D-series SOHC |
| Adjustment | One-degree increments |
| Material | 6061-T6 billet aluminum, hard-anodized |
| Part Number | 23-800BK |
Documents: Installation Instructions (PDF) | Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988-1995 | Honda | Civic | DX |
| 1990-1995 | Honda | Civic | EX |
| 1988-1995 | Honda | Civic | LX |
| 1988-1991 | Honda | Civic | RT 4WD |
| 1989-1995 | Honda | Civic | Si |
| 1992-1995 | Honda | Civic | VX |
| 1993-1997 | Honda | Civic del Sol | S |
| 1993-1997 | Honda | Civic del Sol | Si |
| 1988-1991 | Honda | CRX | HF |
| 1988-1991 | Honda | CRX | Si |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
