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5288T2 8M0166172 Mercury Coil | Genuine Used Part

5288T2 8M0166172 Mercury Coil | Genuine Used Part

$40.00 AUD
$40.00 AUD
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Low stock: 2 left

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🔧 Product Description

Genuine Mercury Ignition Coil - Part Number: 8M0166172 / 5288T2

A genuine Mercury / Quicksilver ignition coil used on selected Mercury and Mariner outboard ignition systems. This coil is commonly listed under the 339-5288T2 coil family and supplies high-voltage spark output to the plug lead on supported two-stroke outboard engines.

⚙️ Key Features

  • Genuine Mercury ignition coil
  • Correct Mercury replacement number 8M0166172
  • Also listed as 5288T2 and 339-5288T2
  • Used on selected Mercury / Mariner outboard ignition systems
  • Must be matched by exact engine serial number, cylinder position and coil connector style

🚤 Compatibility

Commonly used on

  • Mercury / Mariner two-stroke outboard ignition systems
  • Selected 2-cylinder and 3-cylinder carbureted outboards using the 339-5288T2 coil layout
  • Coil positions where the original coil is marked 5288T2 / 339-5288T2

Typically suits

  • Engine models:
  • Mercury 40HP two-stroke - serial-number controlled
  • Mercury 50HP two-stroke - serial-number controlled
  • Mercury / Mariner 40HP and 50HP carbureted outboards using 5288T2 coil layout
  • Selected Mercury / Mariner 2-cylinder and 3-cylinder ignition assemblies where 339-5288T2 is shown on the serial-numbered ignition diagram
  • HP Range: commonly 40HP / 50HP, with additional serial-controlled Mercury / Mariner two-stroke applications
  • Engine Type: Mercury / Mariner two-stroke carbureted outboard ignition system
  • Year Range: serial-number controlled
  • Serial Note: Match the engine serial number and original coil number before installation. Coil connector style, mounting position and plug-lead routing must match the engine harness.

🔌 Function

The ignition coil converts low-voltage ignition input into the high-voltage spark required at the spark plug. A weak or failed coil can cause poor spark output, intermittent running faults or complete loss of ignition on the affected cylinder.

⚠️ Common Signs of Failure

  • No spark on one cylinder
  • Weak or inconsistent spark
  • Misfire under load
  • Hard starting
  • Rough idle
  • Engine drops a cylinder when warm
  • Cracked coil body
  • Corroded terminals or damaged plug lead connection
  • Spark returns or disappears when wiring is moved

🔄 Supersession & Cross Reference

OEM Supersession Chain

  • 339-5288T2 superseded / serviced by 8M0166172
  • 5288T2 current related Mercury coil reference
  • 8M0166172 current Mercury / Quicksilver ignition coil reference

OEM / Related Numbers

  • 8M0166172
  • 5288T2
  • 5288T 2
  • 339-5288T2
  • 339-5288T 2
  • 339-5288
  • Mercury ignition coil
  • Quicksilver ignition coil
  • UPC: 745061092877

Aftermarket / Verified Equivalents

  • No aftermarket equivalent

📦 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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