Isuzu Cars and Trucks 1981-1991

Engine Number

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The gasoline engine serial number is stamped on the top right front corner of the engine. The diesel serial number is stamped on the left rear corner of the engine block.

The Impulse equipped with the 4ZC1-T and 4ZD1 engine, has the number stamped on the left rear corner of the engine block, near the engine to transaxle mounting. On the I-Mark equipped with the G180Z engine, the number is stamped on the top right corner of the engine block. The I-Mark equipped with the 4FB1 diesel engine, has the number stamped on the left rear corner of the engine block. The I-Mark (FWD) equipped with the 4XC1-U, 4XC1-T and the 4XE1 engines, have the number stamped on the flange near the transaxle mounting, toward the front of the vehicle. The 1989 and 1991 Troopers and Rodeos are available with V6 engines. The engine serial number is located on top of the rocker arm covers.



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Fig. G200Z engine serial number location



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Fig. 4XCI-U engine serial number location



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Fig. 4ZCI-T engine serial number location



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Fig. V6 engine serial number location

 
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