HU43 Key Profile – Vehicle Compatibility
The HU43 key profile (Silca HU43 / JMA OP-WH / Keyline VX4) is a standard mechanical key blade without buttons, remote control or electronics. It is mainly used for Opel, Vauxhall, Chevrolet, Holden and some Toyota-related applications with traditional mechanical door and ignition locks. The HU43 is a simple metal key blank without a transponder chip.
Compatible vehicles:
Opel
Calibra — 1995–1997
Omega B — 1995–2003
Vectra B / C — 1995–2006
Sintra — 1996–1999
Zafira A — 1999–2004
Signum — 2003–2008
Vauxhall
Calibra — 1995–1997
Omega — 1995–2003
Vectra — 1995–2006
Sintra — 1996–1999
Zafira — 1999–2004
Chevrolet / Daewoo / Holden / Pontiac
Chevrolet Lumina — 1997–2008
Daewoo models using Opel lock systems — selected years
Holden Commodore — 1988–2004
Holden Calais — 1988–2002
Holden Berlina — 1998+
Pontiac GTO — 2004
Toyota
Toyota Lexcen — 1993–1997
Technical information:
Silca: HU43
JMA: OP-WH
Keyline: VX4
Type: Standard mechanical key
Buttons: No
Remote control: No
Transponder chip: No
Application: Mechanical door and ignition locks
Before cutting a replacement key, always compare the original blade profile and groove shape. The HU43 profile has similar-looking variants, and the correct blank should be selected according to the vehicle year, market and lock system.

