NGK 48577 Ignition Coil

Ignition Coil Overview

NGK ignition coil 48577 is a canister-style, oil-filled ignition coil built to meet or exceed OE standards. It is a direct replacement for select applications and is backed by NGK’s long history in ignition components.

Fits 1987-1988 Pontiac Firefly, N/A. This part number is 48577, and it is also identified by NGK as U1152.

Key Features

• Oil-filled coil construction for stable ignition performance.
• 12-volt standard ignition type.
• Threaded male terminals for secure electrical connection.
• OE-standard design for direct replacement use.
• Developed and tested in an ISO 17025 accredited lab.

Detailed Description

NGK 48577 is an ignition coil designed for vehicles that use a canister-style, oil-filled unit with threaded terminals. The coil is engineered to meet or exceed OE standards, giving technicians a replacement that follows the original equipment design intent. For fitment-specific searches, this ignition coil fits 1987-1988 Pontiac Firefly, N/A, and the part number 48577 can also be referenced as U1152.

NGK’s ignition product line draws on decades of ignition-system experience and global manufacturing support. The brand’s testing process includes validation in an ISO 17025 accredited lab, which reflects a controlled approach to product development and performance verification.

What It Is Used For

• Restoring spark output when the original coil is weak or failing.
• Addressing hard-start or no-start conditions tied to ignition coil wear.
• Correcting misfire symptoms caused by inconsistent coil performance.
• Replacing a damaged oil-filled ignition coil with the proper OE-style design.

Installation Notes and Tips

Confirm the vehicle uses a 12-volt standard ignition coil with threaded male terminals before installation. Verify connector style and mounting configuration against the original part, and compare the existing unit to part number 48577 or U1152 to confirm application match. This coil does not include a mounting bracket.

Quality Assurance

NGK states that its ignition coils are manufactured to meet or exceed OE standards and are developed under rigorous testing conditions in an ISO 17025 accredited laboratory. The brand also notes broad OE coverage across late-model domestic and import vehicles.