Astro, Safari 1997-2005

Engine Identification

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Your first stop in engine identification is the VIN which will supply you with a code to identify the engine with which the vehicle was originally equipped. If you believe the engine is not original equipment for your vehicle, identification can be a little more difficult. Check the labels found on about the engine compartment (radiator shroud, power steering pump reservoir, air cleaner) for more clues. Your last resort is the often difficult to interpret engine codes.

All engines will have some engine build code attached on a label and usually stamped or laser cut into a portion of the block. The engine code can be found on the upper right, rear of the block. On some engines the number can also be found at the rear left of the block, just above the oil filter adapter

Click image to see an enlarged view

Fig. Engine identification number locations-4.3L engines

 
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