OLEO-MAC GSH400 GENUINE IGNITION COIL EMAK 2501033 2501022 FOR EFCO MTH4000 GSH40 38.9CC CHAINSAWS IGNITOR IGNITER MODULE

INSTANT SPARK, RELIABLE START: Genuine EMAK Ignition Coil for 38.9cc Chainsaws.
Replace your faulty igniter with this OEM-spec coil (cross-ref 2501033/2501022) to restore perfect timing and a hot spark. Engineered for Oleo-Mac and Efco saws, it ensures easy starts and consistent running power.

Product Overview:
Is your chainsaw hard to start, misfiring, or lacking spark? The Oleo-Mac GSH400 Genuine Ignition Coil is the solution. Manufactured by EMAK (the parent company of Oleo-Mac and Efco), this ignition module delivers the precise electrical output required for optimal combustion in your 38.9cc engine. A direct replacement for part numbers 2501033 and 2501022, it's the smart choice to get your saw running like new again.

OEM Cross-Reference & Compatibility:
This ignition coil replaces multiple OEM numbers including 2501033 and 2501022. It is the genuine service part for:

• Oleo-Mac: GSH400, GSH40

• Efco: MTH4000

• Engine Displacement: 38.9cc (Fits most models with this engine platform)

Key Features:

• 100% Genuine EMAK/Oleo-Mac: Guaranteed OEM quality and performance. Not an aftermarket "will-fit" copy with weak spark output.

• Drop-In Replacement: Exact mounting hole alignment and air gap specifications for a hassle-free installation.

• Precise Ignition Timing: Engineered to fire at the exact millisecond for maximum power and fuel efficiency.

• Durable Construction: Fully potted epoxy housing protects against vibration, moisture, and heat damage common in chainsaw applications.

Symptoms of a Failing Ignition Coil:

• No Spark: The most common cause of a "no-start" condition.

• Intermittent Running: Engine runs for a while, then dies as it heats up (thermal failure).

• Weak Spark: Engine backfires, runs rough, or fails to accelerate properly.

• Hard Starting: Requires excessive pulling to fire up, especially when cold.

Installation Note:
Always ensure a clean mounting surface and set the correct air gap between the coil legs and the flywheel magnets (typically using a business card or feeler gauge) for optimal performance.

The following pictures can tell you more than we can. What you see is what you will receive – nothing more & nothing less! Please make sure it can fit on your project before buying.

Tags: Oleo-Mac GSH400 ignition coil, 2501033, 2501022, Efco MTH4000 igniter, 38.9cc chainsaw parts, EMAK ignition module, GSH40 coil