NGK 49181 Ignition Coil

NGK COP Ignition Coil for Toyota Applications

The NGK COP (Pencil Type) Ignition Coil, part number 49181, is built for direct ignition systems that require stable voltage delivery and consistent spark performance. It is a 12-volt electronic coil with a pencil-style COP design, making it a practical replacement for select Toyota Corolla, Prius, Prius AWD-e, and Prius Prime models.

NGK’s COP ignition coil line focuses on OE-level fit, durability, and repeatable performance. This part number 49181 is engineered for late-model Toyota applications where precise ignition control matters for smooth running and dependable starting.

Key Features

• COP (pencil type) ignition coil for coil-on-plug systems
• 12-volt electronic ignition design
• Blade terminal style with 4 terminals
• Female connector gender and male terminal gender
• Oil-filled: No
• Mounting bracket included: No
• NGK part number 49181 for easy identification

Detailed Description

NGK ignition coils are manufactured to meet or exceed OE standards, with testing performed in an ISO 17025 accredited lab under demanding conditions. The result is a replacement ignition coil designed for consistent operation in real-world driving, with coverage that includes late-model domestic and import vehicles. For Toyota owners, this NGK COP ignition coil supports direct-fit service on Corolla, Prius, Prius AWD-e, and Prius Prime applications listed below.

This part cross-references Standard Ignition UF811 for the same application. The NGK 49181 ignition coil is also referenced by OE-style numbers including 90919-02272 and E1311.

What This Part Helps Address

• Engine misfire caused by a weak ignition coil
• Hard starting related to inconsistent spark output
• Rough idle from ignition voltage loss
• Check engine light concerns tied to coil performance
• Loss of acceleration response from ignition breakdown

Installation Notes and Tips

• Verify connector style, terminal layout, and coil type before installation.
• Inspect the spark plug and coil boot area for wear, oil intrusion, or corrosion.
• Use the vehicle’s service information for proper torque and electrical checks.
• Confirm the exact model and year match the fitment list before ordering.

Quality Assurance

NGK backs this ignition coil with its long-standing OE-focused manufacturing approach and rigorous lab testing standards. The brand’s experience in ignition components supports dependable replacement quality for Toyota Corolla and Prius family applications.

• Fits 2020-2022 Toyota Corolla, N/A
• Fits 2016-2021 Toyota Prius, N/A
• Fits 2019-2021 Toyota Prius AWD-e, N/A
• Fits 2017-2021 Toyota Prius Prime, N/A