# 332-5772A7 Mercury MerCruiser Switch Box | Genuine Quicksilver OEM Part

🔧 Product Description

  

Genuine Quicksilver Ignition Switch Box - Part Number: 332-5772A7

  

A genuine Quicksilver ignition switch box used on selected Mercury and Mariner 4-cylinder outboards. This switch box forms part of the CDI ignition system and controls ignition output to the coils, supporting correct spark timing and reliable engine operation.

  

⚙️ Key Features

  

• Genuine Quicksilver OEM ignition switch box

• Correct Mercury part number 332-5772A7

• Used on selected Mercury / Mariner 40HP to 125HP 4-cylinder outboards

• Replaces earlier 332-5772 switch box references

• Critical ignition component for spark delivery and engine running

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 332-5772A7 → Supersedes 332-5772A5

• 332-5772A5 → Supersedes 332-5772A4

• 332-5772A4 → Supersedes 332-5772A3

• 332-5772A3 → Supersedes 332-5772A2

• 332-5772A2 → Supersedes 332-5772A1

• 332-5772A1 earlier OEM reference

  

OEM / Related Numbers:

  

• 332-5772A7

• 5772A7

• 332-5772A5

• 332-5772A4

• 332-5772A3

• 332-5772A2

• 332-5772A1

• 332-5772

• 114-5772

  

Aftermarket / Verified Equivalents:

  

• Sierra: 18-5881

• CDI Electronics: 114-5772

• Prufrex: MPP 493/1

  

🚤 Compatibility

  

Commonly used on:

  

• Mercury / Mariner 4-cylinder outboard CDI ignition systems

  

Typically suits:

  

• Engine models:

• Mercury / Mariner 40HP 4-cylinder - serial 0C159200 to 0G589999

• Mercury / Mariner 45HP 4-cylinder - serial 5531630 to 0B393190

• Mercury / Mariner 50HP 4-cylinder - serial 5531630 and up

• Mercury / Mariner 75HP 4-cylinder - serial 6432901 and up

• Mercury / Mariner 80HP 4-cylinder - serial 4831999 to 6432900

• Mercury / Mariner 80 Jet - serial 0D283222 to 6437999

• Mercury / Mariner 85HP 4-cylinder - serial 4366802 to 4831998

• Mercury / Mariner 100HP 4-cylinder - serial 0B209468 to 6437999

• Mercury / Mariner 115HP 4-cylinder - serial 0C100000 to 0G437999

• Mercury / Mariner 125HP 4-cylinder - serial 0D283222 to 0G437999

• Mercury / Mariner 40HP to 125HP 4-cylinder ignition systems using 332-5772A7

  

• HP Range: 40HP - 125HP

• Engine Type: Mercury / Mariner 4-cylinder 2-stroke outboard

• System Type: CDI ignition switch box / power pack

  

🔌 Function

  

The switch box controls capacitor-discharge ignition output to the coils, allowing the spark plugs to fire at the correct time for each cylinder.

  

Common signs of failure:

  

• No spark on one or more cylinders

• Intermittent ignition cut-out

• Hard starting or no-start condition

• Engine misfire under load

• Loss of power caused by weak or inconsistent spark

  

📦 Condition

  

• Genuine Quicksilver part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 486.4 AUD
- **Vendor:** Quicksilver
- **Tags:** Quicksilver Marine Parts | Oils Service Kits & Engine Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 486.40 AUD | In stock |

## Images

- 332-5772A7 Mercury MerCruiser Switch Box | Genuine Quicksilver OEM Part

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> Source: [Sawley's Auto and Marine](www.sawleysautoandmarine.com.au/products/332-5772a7-mercury-mercruiser-switch-box-genuine-quicksilver-oem-part)
> Updated: 2026-05-17