Engine ID and VIN Derivative Location

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The eighth character in the Vehicle Identification Number (VIN) identifies the engine. Adhesive-backed labels attached to the engine, laser etching or stampings on the engine block indicate the engine unit number/date code. All engines are stamped with a VIN derivative.

Fig 1: 4.3L Engine Identification Number Location

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Callout	Component Name
1	Primary Engine Identification Number Location
2	Secondary Engine Identification Number Location

Fig 2: 4.8L, 5.3L, 6.0L Engine Identification Number Location

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Callout	Component Name
1	Primary Engine Identification Location
2	Secondary Engine Identification Location

Fig 3: 8.1L Engine Identification Number Location

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Callout	Component Name
1	Engine Identification Number Location

Fig 4: 6.6L Diesel Engine Identification Number Location

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Callout	Component Name
1	Engine Identification Number Location