502 MAGNUM MPI — FUEL INJECTORS
Which Fuel Injector Fits My MerCruiser® 502 Magnum MPI?
The MerCruiser® 502 Magnum MPI spans multiple production years. Verify your engine model and serial number before ordering a replacement injector.
Always Verify Before Ordering
Confirm all four of the following before selecting a replacement injector.
Exact engine model
Confirm the full engine model designation from your data plate — for example, 502 Magnum MPI or 502 MAG MPI.
Engine serial number
Locate the serial number on your engine data plate. Serial ranges are the most reliable way to confirm which injector was factory-fitted to your specific engine.
Existing OEM or injector number
If you have the OEM part number from the original injector or a service manual, this is the most direct identification method. Cross-reference it against the table below.
Physical injector characteristics
Connector type, body length, O-ring configuration and any visible markings or colour bands can help confirm the injector family. Use physical characteristics together with OEM/serial verification, not as the sole method.
502 Magnum MPI Injector Selection Guide
The 861260T (Weber/Magneti Marelli IWP-069) is Mercury Marine confirmed for the 502 Magnum MPI, model years 1999–2001. Serial range data will be populated as independently verified. Do not assume all 502 Magnum MPI engines use the same injector.
| Engine Variant | Years | Serial Range | OEM Injector | Manufacturer / ID | Visual ID | View Product |
|---|---|---|---|---|---|---|
| 502 Magnum MPI | 1999–2001 | Verification in progress | 861260T | Weber / Magneti Marelli — IWP-069 | Yellow band | 861260T Page |
502 Magnum MPI Injector Replacements
Verify your OEM number and serial range using the guide above before selecting a replacement.
Have Your OEM Part Number?
Search your existing MerCruiser® OEM injector part number to find available aftermarket replacement options.