NGK 49003 Ignition Coil

NGK Ignition Coil for Mazda Protege and Protege5

NGK 49003 is a distributorless COP (waste spark) ignition coil built for direct replacement use on select Mazda applications. It is engineered to meet or exceed OE standards for durability and consistent ignition performance, with a 12-volt design and 3-terminal blade connection for the listed fitments.

Compatible With 2001-2003 Mazda Protege and 2002-2003 Mazda Protege5, this NGK ignition coil supports reliable spark delivery in waste spark ignition systems. The NGK COP (Waste Spark) Ignition Coil line is backed by the brand’s long OE-focused manufacturing experience and testing practices, including validation in an ISO 17025 accredited lab.

Key Features

• Part number 49003 / U4011
• 12-volt distributorless ignition coil
• COP (Waste Spark) coil type
• 3-terminal blade connection
• Female connector with male terminals
• Oil-filled: No
• Mounting bracket not included
• Direct-fit coverage for select Mazda Protege and Protege5 models

Detailed Description

NGK 49003 is designed for vehicles using a distributorless ignition system with COP (waste spark) architecture. The coil is built to support stable ignition output and consistent electrical performance in the applications listed below. For buyers searching for a Mazda Protege ignition coil or Mazda Protege5 ignition coil, this NGK unit provides an OE-style replacement option with the correct connector style, terminal count, and voltage specification.

This part cross-references Standard Ignition UF-407 and Delphi GN10301 for the same application. The NGK COP (Waste Spark) Ignition Coil product line is developed for broad late-model domestic and import coverage, with manufacturing and testing focused on OE-level fit and function.

What It Helps Address

• Engine misfire caused by a weak or failing ignition coil
• Hard starting related to inconsistent spark output
• Rough idle from ignition system voltage loss
• Loss of acceleration response tied to coil degradation
• Check engine light conditions associated with ignition performance faults

Installation Notes and Tips

Verify connector style, terminal count, and ignition system type before installation. This coil is specified for distributorless COP (waste spark) applications and uses a 3-terminal blade connection. Confirm the vehicle match against the listed fitment for 2001-2003 Mazda Protege and 2002-2003 Mazda Protege5 before replacing the original unit.

Quality Assurance

NGK manufactures ignition coils to meet or exceed OE standards and validates designs under demanding test conditions in an ISO 17025 accredited laboratory. The brand’s OE legacy and focus on ignition components support consistent product quality for the listed Mazda applications.