Isuzu Parts Manuals
Isuzu engine parts catalogs with exploded diagrams and factory part numbers. Most coverage here is the 4JJ1 3.0-liter engine across multiple OEM application variants. The suffix on the engine serial plate (XY, XZ, TY) tells you which catalog matches your engine: 4JJ1XYSB01, 4JJ1XYSB02, 4JJ1XZSB02, 4JJ1XZSB03, 4JJ1TYSB03, and the P-TCR50EDC power unit.
Also available: the BB-4BG1-TRE for the older 4BG1 found in Hitachi EX and Kobelco SK excavators, and the TL140 parts catalog. For repair procedures and diagnostics, see Isuzu Repair Manuals.
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