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Holden Adventra Engine Number
Use this guide to locate the engine number on your Holden Adventra and line up the right engine-related parts enquiry.
The Holden Adventra was Holden's all-wheel-drive crossover wagon, built in Australia from 2003 to 2006 across the VY and VZ series as a raised, AWD version of the Commodore station wagon. It launched V8-only with the 5.7-litre LS1 and later gained the 3.6-litre Alloytec V6.
Where to find your Holden engine number
The stamped engine number is on a machined pad on the block. Its location depends on the engine family:
- Inline six-cylinder: on a pad on the right-hand side of the block, above the engine-mount boss.
- V8 (253 / 308, 4.2 / 5.0 litre): on a pad on the left-hand side of the block, above the engine mounting.
- V6 (Buick-derived, Ecotec, Alloytec): on the front left-hand face of the block, below the ignition coil.
- Later V6 and LS V8 models: the build / engine plate sits on the radiator support panel (VT-VZ era) or the passenger-side strut tower (VE / VF era).
You may need to wipe the pad clean to read the stamped number, and on air-conditioned cars the compressor can sit in front of it. Older Holden engines use a capacity-plus-tune prefix (for example 186S or a Q-series V8 code), while modern engines (Ecotec, Alloytec and the LS V8 family) use a GM engine code plus a separate stamped serial.
For the most accurate part match, send us both the engine code or prefix and the full stamped number, along with whether the car is automatic or manual.
On this model
Early Adventras were fitted with the 5.7-litre Generation III LS1 V8, while later cars introduced the 3.6-litre Alloytec V6; the exact engine depends on the series and build, so confirm which is fitted rather than assuming from the model name. The engine number is stamped on the block and, together with the series and engine family, is the reliable way to identify the correct components. Because the Adventra is all-wheel drive, the engine, transmission and AWD driveline must be matched as a set, so note the series and driveline configuration when sourcing parts. If you are unsure of the exact engine code, quote the stamped engine number and the build plate details so the correct V8 or V6 driveline can be identified without guesswork.
This page also draws on later year-by-year data for Holden Adventra to cover modern variants.
Frequently asked questions
Where is the engine number on a Holden Adventra?
It is stamped on a machined pad on the engine block. Inline sixes are on the right side above the engine mount, the 253/308 V8s on the left side above the mount, and the V6 engines on the front left face below the ignition coil. You may need to wipe the pad clean to read it.
What is the difference between an engine prefix and an engine code?
Older Holden engines use a capacity-plus-tune prefix stamped on the block, while modern engines (Ecotec, Alloytec and the LS V8 family) use a GM engine code plus a separate stamped serial.
Do you match engine numbers to parts?
Yes. Send us the engine code or prefix and the full stamped number, plus whether the car is automatic or manual, and we will match the right engine-related part.
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