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Holden Suburban Engine Number
Use this guide to locate the engine number on your Holden Suburban and line up the right engine-related parts enquiry.
The Holden Suburban (1998-2001) was a full-size SUV sold in small numbers in Australia, essentially a rebadged Chevrolet/GMC Suburban from the GMT400 generation, converted to right-hand drive and offered with either a 5.7-litre petrol V8 or a 6.5-litre turbo-diesel V8. Imported from North America rather than built locally, it remains a rare, low-volume model on Australian roads.
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
These vehicles came with one of two very different engines, so the essential first step is establishing whether you have the 5.7-litre petrol V8 – a GM small-block, commonly the Vortec 5700 – or the 6.5-litre turbo-diesel V8. The two share almost nothing in service parts, so getting this right before sourcing anything is critical. Both are General Motors engines identified by GM engine codes and by a serial number stamped on the block, which you should locate and record when ordering major components. Quote both the engine type and that stamped number so parts can be matched accurately, and cross-reference the corresponding GM Chevrolet/GMC application. If a code or stamping is unclear, verify it against GM engine documentation rather than assuming, as the petrol and diesel families are not interchangeable.
This page also draws on later year-by-year data for Holden Suburban to cover modern variants.
Frequently asked questions
Where is the engine number on a Holden Suburban?
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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