Part Number Guides
How Honda and Toyota part numbers are structured — chassis codes, unit numbers, and the 23209 injector series. Written from the sourcing side.
Honda GDI HPFP Part Numbers: 5PC vs 5LA, 0726 vs 0054
What the two Honda chassis codes mean, how they map to the two manufacturing unit numbers, and why both appear on invoices across the 1.5T and 2.4L families.
Toyota Fuel Injector Part Numbers: 23209 Series Reference
The 23209 prefix, the suffixes that change between versions, and how we keep them straight across the three numbers we stock.