# 34750-ZW5-043 Honda ECU | Genuine Used Part

🔧 Product Description

  

Genuine Honda BF115 / BF130 ECU - Part Number: 34750-ZW5-043

  

A genuine Honda electronic control unit for selected BF115 and BF130 four-stroke EFI outboards. This ECU manages fuel injection, ignition timing, sensor monitoring, diagnostic output and engine-protection functions on compatible Honda 115HP and 130HP engines.

  

⚙️ Key Features

  

• Genuine Honda ECU / electronic control unit

• Correct Honda part number 34750-ZW5-043

• Used on selected BF115 and BF130 four-stroke EFI outboards

• Related to earlier 34750-ZW5 ECU family references

• Must be matched by exact engine model, serial number and ECU label

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 34750-ZW5-043 later / current ECU reference

• 34750-ZW5-033 earlier related ECU reference

• 34750-ZW5-023 earlier related ECU reference

• 34750-ZW5-013 earlier related ECU reference

  

OEM / Related Numbers:

  

• 34750-ZW5-043

• 34750ZW5043

• 34750-ZW5-033

• 34750ZW5033

• 34750-ZW5-023

• 34750ZW5023

• 34750-ZW5-013

• 34750ZW5013

• Keihin ECU marking family

• Related BF115 / BF130 ECU family reference

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Honda BF115 and BF130 four-stroke EFI outboard engine-management systems

  

Typically suits:

  

• Engine models:

• Honda BF115A

• Honda BF115 115HP four-stroke EFI applications using 34750-ZW5 ECU family

• Honda BF130A

• Honda BF130 130HP four-stroke EFI applications using 34750-ZW5 ECU family

• Honda 115HP inline four-cylinder EFI applications where 34750-ZW5-043 is specified

• Honda 130HP inline four-cylinder EFI applications where 34750-ZW5-043 is specified

  

• HP Range: 115HP - 130HP

• Engine Type: Honda inline four-cylinder four-stroke EFI outboard

• Year Range: Approximately 1999 - 2007 depending on model, market and ECU calibration

• Serial Note: Confirm exact Honda frame / engine serial number, ECU label and connector layout before installation.

  

🔌 Function

  

The ECU controls fuel-injection timing, ignition timing, idle strategy, sensor processing, fault storage and engine-protection operation.

  

Common signs of failure:

  

• No-start with verified fuel pressure, spark inputs and ECU power supply

• No injector pulse or erratic injector command

• No diagnostic communication

• Intermittent shutdown or limp mode

• Persistent ECU or sensor faults after harness testing

• Rich or lean running after mechanical and fuel-system checks

• Water ingress, heat damage or corrosion at ECU connectors

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 150.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Electronic Components | ECU CDI & Electrical Parts

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 150.00 AUD | In stock |

## Images

- 34750-ZW5-043 Honda ECU | Genuine Used Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/34750-zw5-043-honda-ecu-genuine-used-part)
> Updated: 2026-06-29