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0581366 511778 OMC Rectifier | Genuine Used Part

0581366 511778 OMC Rectifier | Genuine Used Part

$30.00 AUD
$30.00 AUD
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🔧 Product Description

Genuine OMC / Johnson / Evinrude Rectifier Lead Assembly - Part Number: 0581366

A genuine OMC rectifier / lead assembly used on Johnson and Evinrude small to mid-range two-stroke electric-start outboards. This rectifier family is commonly associated with the 0581778 / 581778 current replacement reference and is used on 4HP to 60HP two-stroke charging systems.

⚙️ Key Features

  • Genuine OMC / Johnson / Evinrude rectifier assembly
  • Correct OEM reference 0581366
  • Supersedes into the 0581778 / 581778 rectifier-lead family
  • Used on small and mid-range two-stroke charging systems
  • Must be matched by charging system type and wiring connector layout

🚤 Compatibility

Commonly used on

  • Johnson / Evinrude electric-start two-stroke outboards
  • 4HP to 60HP two-stroke charging systems
  • 9.9HP to 60HP electric-start models using the 0581778 / 581778 rectifier family

Typically suits

  • Johnson / Evinrude 4HP to 60HP two-stroke outboards, 1974-2005
  • Johnson / Evinrude 9.9HP to 60HP electric-start outboards
  • Johnson / Evinrude 55HP two-cylinder 3.187 bore looper applications
  • Johnson / Evinrude 15HP electric-start applications including 1977 model listings
  • HP Range: 4HP / 9.9HP / 15HP / 55HP / 60HP
  • Engine Type: Johnson / Evinrude two-stroke outboard with rectifier charging system
  • Year Range: 1974-2005
  • Serial Note: OMC applications are model-year and model-number controlled; confirm by exact parts diagram and rectifier lead layout.

🔌 Function

The rectifier converts stator AC output into DC charging voltage so the battery and electrical system receive usable charging current.

⚠️ Common Signs of Failure

  • Battery not charging while engine is running
  • Overcharging or unstable battery voltage
  • Tachometer signal missing or erratic on systems using stator/rectifier tach feed
  • Burnt or melted rectifier wiring
  • Blown charging-system fuse
  • Corroded terminals or cracked housing
  • Electrical output changes after wiring is moved

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 0581366 / 581366 to 0581778 / 581778

OEM / Related Numbers

  • 0581366
  • 581366
  • 0581778
  • 581778
  • 0582304
  • 0173692
  • Rectifier lead assembly
  • Rectifier / lead housing assembly

Aftermarket / Verified Equivalents

  • Recmar REC581778
  • ARCO AR104
  • CDI two-cylinder rectifier replacement listed against 581778

📦 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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