• 0389550 0777647 OMC Amplifier | Genuine Used Part
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0389550 0777647 OMC Amplifier | Genuine Used Part

0389550 0777647 OMC Amplifier | Genuine Used Part

$250.00 AUD
$250.00 AUD
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🔧 Product Description

Genuine OMC Johnson / Evinrude Ignition Amplifier Kit - Part Numbers: 0389550 and 0777647

A genuine OMC ignition amplifier / power pack kit used on selected early Johnson and Evinrude battery-CD ignition systems. This amplifier kit services earlier OMC amplifier references and is used on compatible 60HP, 85HP and 100HP outboards.

⚙️ Key Features

  • Genuine OMC Johnson / Evinrude ignition amplifier kit
  • Includes / cross-references part numbers 0389550 and 0777647
  • Supersedes earlier amplifier references 0389551, 0397123, 0580849 and 0383299
  • Used on selected 60HP, 85HP and 100HP battery-CD ignition systems
  • Critical ignition-control component requiring coil, sensor and wiring checks before replacement

🚤 Compatibility

Commonly used on

  • Johnson / Evinrude battery-CD ignition systems

Typically suits

  • Engine models:
  • Johnson 60HP - 1970-1971
  • Evinrude 60HP - 1970-1971
  • Johnson 85HP - 1969-1972
  • Evinrude 85HP - 1969-1972
  • Johnson 100HP - 1971
  • Evinrude 100HP - 1971
  • HP Range: 60HP - 100HP
  • Engine Type: Johnson / Evinrude two-stroke outboard with compatible battery-CD ignition
  • Year Range: Approximately 1969 - 1972 depending on horsepower
  • Fitment Note: Confirm original amplifier number, ignition coil kit, wiring layout and model number before installation.

🔌 Function

The amplifier controls the ignition signal in battery-CD ignition systems, switching the ignition coil circuit so spark is generated at the correct timing point.

⚠️ Common Signs of Failure

  • No spark
  • Intermittent spark loss
  • Engine starts then dies
  • Weak spark after coil and wiring checks
  • Misfire across affected cylinders
  • Ignition output fault isolated to amplifier
  • Heat-related shutdown or internal module failure

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 0777647 replacement amplifier kit reference
  • 0397123 earlier amplifier reference
  • 0389551 earlier amplifier reference
  • 0389550 earlier amplifier reference
  • 0580849 earlier amplifier reference
  • 0383299 earlier amplifier reference

OEM / Related Numbers

  • 0777647
  • 777647
  • 0389550
  • 389550
  • 0397123
  • 397123
  • 0389551
  • 389551
  • 0580849
  • 580849
  • 0383299
  • 383299

Aftermarket / Verified Equivalents

  • Sierra: 18-99238
  • Aqua Power: 1638
  • Aftermarket ignition amplifier replacements for 0389550 / 0777647 applications

📦 Condition

  • Genuine used part
  • Removed from running engine where applicable
  • In good working condition unless otherwise stated

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in the condition you received it for a refund or exchange. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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