Mercury Marine MerCruiser 4.2L 300 — Stage 1 / Stage 2 parameters

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Все двигатели Mercury Marine MerCruiser 4.2L 300 в базе

Engine Version ECU Stock Stage 1 Gain
300 HP 300hp (221kW) 645Nm I 300 hp 355 hp +55

Stage 1 / Stage 2 parameter catalog for Mercury Marine MerCruiser 4.2L 300: 1 engine, all diesel. 300 hp stock → 355 Stage 1 (+55 hp). All data is based on actual CHIPOK Stage files for specific ECUs.

Calibration for Mercury Marine MerCruiser 4.2L 300 is done in licensed WinOLS5. DPF / EGR / AdBlue are switched off per the manufacturer's service documentation — with no pending DTCs after flashing.

Each table row leads to a dedicated engine page with Stage 1 figures, a dyno chart and options. Available options: DPF off, EGR off, AdBlue / SCR off, Lambda off, DTC off, Speed limiter off, Flaps off. The file is prepared in 30-60 minutes on the CHIPOK portal, paid with credits and no subscription fees.

Mercury Marine MerCruiser 4.2L 300 engines in our database: Mercury 4.2L I6 300 hp marine. Specific ECU units: MerCruiser MEFI 5. Model-specific notes: MerCruiser 4.2L 300 — marine I6 300 hp; → Stage 1 340 hp.

Last updated: 31.08.2026 · Source: manufacturer technical documentation · Measurements: CHIPOK dyno