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Description
The FiTech GM Red and Yellow Primary Wires Black Housing HEI Coil (99903) is a high-performance replacement ignition coil designed for General Motors High Energy Ignition (HEI) systems. This coil is engineered to fit directly within the distributor cap, offering a convenient and efficient upgrade for your engine's ignition system. It is compatible with 4, 6, and 8-cylinder engines that utilize red and yellow primary wires, making it a versatile choice for a variety of applications.
KEY FEATURES AND BENEFITS:
- Direct-fit replacement for FiTech and OE HEI distributors.
- Compatible with 4, 6, and 8-cylinder engines using red and yellow primary wires.
- Optimized resistance and inductance values for compatibility with high-amperage dwell circuits.
- Ensures rapid charging and complete coil saturation, even at high RPMs.
- Constructed with high-temperature epoxy for enhanced durability and thermal conductivity.
- Includes a complete installation hardware kit for easy setup.
- Black housing and red/yellow primary wires for easy identification.
- Reliable spark output for improved engine performance.
SPECIFICATIONS:
- Type: In-Cap HEI Ignition Coil
- Compatibility: GM HEI Systems
- Engine Compatibility: 4, 6, and 8-cylinder engines
- Primary Wire Colors: Red and Yellow
- Housing Color: Black
- Construction Material: High-temperature epoxy
- Installation: Direct-fit, includes hardware.
HOW TO USE:
- Disconnect Power: Ensure the vehicle's ignition is off and disconnect the negative battery terminal.
- Remove Distributor Cap: Carefully remove the distributor cap from the distributor.
- Remove Old Coil: If replacing an existing coil, detach the old coil from the distributor cap.
- Install New Coil: Place the FiTech 99903 coil into the distributor cap, ensuring proper alignment.
- Connect Wiring: Connect the red and yellow primary wires to the corresponding terminals.
- Reinstall Distributor Cap: Securely reattach the distributor cap to the distributor.
- Reconnect Power: Reconnect the negative battery terminal.
- Test Ignition: Start the engine and verify proper ignition function.
BENEFITS OF USING THE FITECH GM RED AND YELLOW PRIMARY WIRES BLACK HOUSING HEI COIL (99903):
- Improved ignition performance through a consistent and strong spark.
- Increased reliability due to the robust construction and high-temperature epoxy.
- Simplified installation with the included hardware kit.
- Enhanced engine efficiency and performance, particularly at high RPMs.
- Versatile compatibility across many GM HEI engine platforms.
FEATURES:
- Internal coil design for direct cap fitment.
- Electrical values matched for performance ignition modules.
- Resistant to shock and vibration.
- Thermal conductive epoxy for heat dissipation.
- Designed for aftermarket 4 pin modules.
- Designed for high performance electronic controls.
- Provides a consistent voltage output.
- Designed to replace OE style coils.
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