33920-88L41 33920-88LB0 Suzuki ECU | Genuine Used Part

🔧 Product Description

Genuine Suzuki DF50A ECU / Engine Control Unit - Part Numbers: 33920-88L41 and 33920-88LB0

A genuine Suzuki engine control unit used on selected DF50A four-stroke EFI outboards. This ECU manages fuel injection, ignition timing, sensor monitoring, warning functions and engine-protection strategy on compatible Suzuki DF50A / DF50AT applications.

⚙️ Key Features

• Genuine Suzuki ECU / engine control unit

• Listed with Suzuki references 33920-88L41 and 33920-88LB0

• Supersession family includes 33920-88L40, 33920-88L41 and 33920-88LB0

• Used on Suzuki DF50A EFI four-stroke applications

• Exact model code, serial number and ECU label must be confirmed before fitting

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 33920-88LB0 → Supersedes 33920-88L41

• 33920-88L41 → Supersedes / follows 33920-88L40

• 33920-88L40 earlier ECU reference

OEM / Related Numbers:

• 33920-88LB0

• 33920-88LB0-000

• 33920-88LB0-0000

• 3392088LB0

• 33920-88L41

• 33920-88L41-000

• 33920-88L40

• 33920-88L40-000

• F8T53475

• Related DF50A ECU family reference: 33920-88LJ0

• Related DF50A ECU family reference: 33930-88LN0

• Related ECU cushion reference: 33925-88L00

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Suzuki DF50A / DF50AT EFI four-stroke outboard engine-control systems

Typically suits:

• Engine models:

• Suzuki DF50A applications using 33920-88LB0

• Suzuki DF50AT 2012, serial 210001 and up, PTT switch / engine-control-unit diagram applications using 33920-88LB0

• Suzuki DF50AT 2013, serial 310001 and up, engine-control-unit applications using 33920-88LB0

• Suzuki DF50A ECU applications originally using 33920-88L41 where superseded to 33920-88LB0

• Suzuki DF50A ECU applications originally using 33920-88L40 where superseded through the 33920-88L41 / 33920-88LB0 service family

• Suzuki DF40A / DF50A / DF60A ECU family diagrams where the exact parts list specifies 33920-88LB0

• HP Range: primarily 50HP for 33920-88LB0 DF50A calibration

• Engine Type: Suzuki EFI four-stroke outboard

• Year Range: approximately 2010-onwards DF50A / DF50AT applications using this ECU family

• Fitment Note: 33920-88LB0 is a calibration-specific ECU. It must be matched by exact Suzuki model, serial number, ECU label and wiring configuration.

🔌 Function

The ECU controls fuel injection, ignition timing, idle speed, sensor monitoring, diagnostic fault output, warning functions and engine-protection strategy.

Common signs of failure:

• No-start with verified ECU power, grounds, fuel supply and ignition inputs

• No injector pulse or irregular injector command

• No diagnostic communication

• Intermittent stalling or limp-mode operation

• Persistent ECU or sensor fault codes after wiring checks

• Rough idle, rich running or lean running after mechanical checks

• ECU damage from water ingress, corrosion or incorrect voltage

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated