7283A2 7283A3 Mercury Trigger | Genuine Used Part

🔧 Product Description

Genuine Used Mercury Mariner 7.5HP / 9.8HP Twin-Cylinder Trigger Plate - Part Numbers: 7283A2 and 7283A3

A genuine pre-owned Mercury and Mariner trigger-plate assembly for selected 7.5HP and 9.8HP twin-cylinder two-stroke outboards.

Mercury part number 7283A2 supersedes to 7283A3. The trigger is mounted beneath the flywheel and rotates with the spark-advance linkage while producing the timing signals used by the ignition system.

⚙️ Key Features

• Genuine Mercury or Mariner used trigger plate
• Earlier reference 7283A2
• Later service reference 7283A3
• Designed for selected 7.5HP and 9.8HP twin-cylinder engines
• Mechanical spark-advance configuration
• Professionally remanufactured replacement may be available

🚤 Compatibility

Commonly used on

• Mercury 7.5HP two-cylinder outboards
• Mercury 9.8HP two-cylinder outboards
• Mariner equivalents using the Mercury ignition system
• Manual-start and electric-start applications where the listed trigger is specified

Typically suits

• Selected 7.5HP engines from approximately 1975-1985
• Selected 9.8HP engines from approximately 1975-1985
• Serial-number-controlled United States, Canadian, Australian and European models

Important fitment note

• Confirm 7283A2 or 7283A3 on the original trigger.
• Similar small Mercury engines may use a different stator, trigger or breaker-point ignition system.
• Compare the linkage arm, wiring and mounting diameter.

🔌 Function

The trigger produces ignition-timing pulses and rotates to advance or retard spark timing as throttle position changes.

⚠️ Common Signs of Failure

• No spark on one or both cylinders
• Intermittent spark
• Difficult starting
• Misfire under acceleration
• Engine will not reach full timing advance
• Trigger wiring is cracked
• Plate binds under the flywheel
• Spark disappears when warm

🛠️ Service Notes

Recommended checks before installation

• Compare the trigger and linkage with the original
• Test resistance and peak output
• Inspect the stator, switchbox and coils
• Check the flywheel key and magnets
• Confirm free spark-advance movement
• Set ignition timing and throttle synchronisation

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 7283A2 - Earlier trigger housing assembly
• 7283A3 - Later functional replacement

OEM / Related Numbers

• 7283A2
• 7283A3
• 338-7283A2
• 338-7283A3
• Related assembly reference: 5286A6
• OEM Description: Trigger Plate
• OEM Description: Trigger Housing Assembly

Aftermarket / Verified Equivalents

• CDI Electronics remanufactured reference: R338-7283A3
• Professionally rebuilt trigger plate replacing 7283A2 / 7283A3
• No verified new-production direct aftermarket equivalent

📦 Condition

• Genuine Mercury or Mariner used part
• Pre-owned electrical component
• Cosmetic marks, wire ageing and oxidation may be present
• Electrical testing before installation is strongly recommended
• Supplied in protective or equivalent packaging