26048A Bosch Ignition Coil BIC729 0986AG0502

Genuine Bosch Ignition Coil 0986AG0502 BIC729 - Premium OEM Quality

Ensure reliable ignition and optimal engine performance with the Bosch Ignition Coil 0986AG0502 BIC729 (SKU 26-048A). This premium OEM-quality ignition coil is engineered by Bosch to deliver powerful, consistent spark energy to your spark plugs, ensuring reliable starting, smooth running, and optimal combustion. Designed specifically for Toyota Yaris, Echo, and Prius models with 1.5L 1NZ-FE and 1.5L 2NZ-FE engines, this coil provides dependable ignition performance and long service life. Also widely used in engine conversion kits requiring reliable ignition performance.

CLICK HERE TO CHECK IF THIS FITS YOUR VEHICLE.

Key Features & Benefits

• Genuine Bosch Quality - OEM-grade component built to exacting standards
• Direct Fit - Designed specifically for Toyota 1NZ-FE and 2NZ-FE engines
• Wide Application - Fits Toyota Yaris, Echo, and Prius models
• Powerful Spark Energy - Ensures complete combustion and optimal performance
• Reliable Starting - Consistent spark delivery in all conditions
• Smooth Engine Operation - Eliminates misfires and hesitation
• Improved Fuel Economy - Complete combustion maximizes efficiency
• Reduced Emissions - Proper ignition reduces unburned fuel
• Long Service Life - Durable construction for extended reliability
• Conversion Kit Ready - Popular choice for engine conversion projects

Technical Specifications

• Bosch Part Number: 0986AG0502 BIC729
• Component Type: Ignition Coil (Coil-on-Plug)
• Primary Application: Toyota Yaris, Echo, Prius
• Engine: 1.5L 1NZ-FE, 1.5L 2NZ-FE
• Mounting: Direct fit coil-on-plug design
• Weight: 0.25 kg

Vehicle Compatibility

This Bosch ignition coil is compatible with the following models:

Toyota:

• Toyota Yaris NCP90, NCP91, NCP93 1.5L 1NZ-FE (2005-2011)
• Toyota Echo NCP10, NCP12, NCP13 1.5L 1NZ-FE (1999-2005)
• Toyota Prius NHW20 1.5L 1NZ-FXE (2003-2009)
• Other Toyota models with 1NZ-FE or 2NZ-FE engines

Also widely used in engine conversion kits requiring reliable ignition performance. Always verify fitment for your specific vehicle and engine configuration.

CLICK HERE TO CHECK IF THIS FITS YOUR VEHICLE.

OEM Part Number Cross-Reference

This Bosch ignition coil replaces the following OEM part numbers:

• 0986AG0502 (Bosch)
• BIC729 (Bosch)
• 9091902240 (Toyota)
• 9008019021 (Toyota)
• 9091902265 (Toyota)
• 9091902229 (Toyota)
• 9091902270 (Toyota)
• IGC-048 / IGC048

Common Symptoms of Faulty Ignition Coils

• Check engine light with misfire codes (P0300-P0304)
• Engine misfires or rough running
• Hard starting or no start condition
• Loss of power during acceleration
• Poor fuel economy
• Engine hesitation or stumbling
• Rough idle or engine vibration
• Increased emissions
• Backfiring through intake or exhaust
• Stalling at idle or under load

What Does an Ignition Coil Do?

The ignition coil is a critical component of your vehicle's ignition system that transforms the battery's low voltage (typically 12 volts) into the high voltage (20,000-40,000 volts) required to create a spark at the spark plug. Modern coil-on-plug designs like this Bosch unit mount directly on top of each spark plug, eliminating spark plug wires and providing more precise ignition timing control. The coil receives a signal from the engine control unit (ECU) and generates a powerful spark at precisely the right moment to ignite the air-fuel mixture in the combustion chamber. A properly functioning ignition coil is essential for reliable starting, smooth engine operation, optimal fuel economy, and reduced emissions.

Why Choose Genuine Bosch Ignition Coils?

Genuine Bosch ignition coils are designed to meet or exceed original equipment specifications, ensuring reliable spark delivery, consistent performance, and long service life. As a world-leading automotive supplier and original equipment manufacturer for Toyota and other major automakers, Bosch ignition components are built to exacting standards with precision engineering and quality materials. Using genuine Bosch coils ensures proper fitment, maintains your vehicle's ignition system integrity, and provides the reliability you need for worry-free driving. This coil is also a popular choice for engine conversion projects due to its proven reliability and performance.

Installation Notes

Professional installation is recommended for best results. Ignition coil replacement requires disconnecting the battery, removing the coil connector, and carefully extracting the old coil from the spark plug well. Clean the spark plug well before installing the new coil. Apply dielectric grease to the spark plug boot to prevent moisture intrusion and ensure easy future removal. Reconnect the electrical connector and ensure it clicks into place. Check for proper engine operation after installation. Replace spark plugs if they show signs of wear or damage, as worn plugs can cause premature coil failure.

Why Choose LM15 Motorsport?

We supply genuine Bosch ignition components with fast shipping across Australia. Every ignition coil is carefully inspected to ensure you receive an authentic Bosch component for reliable ignition performance. Our team has extensive experience with Toyota vehicles and engine conversion projects, and can provide expert advice on ignition system maintenance and troubleshooting.

Need help with fitment or installation? Contact our expert team for advice specific to your Toyota Yaris, Echo, Prius ignition system requirements or engine conversion project.