NGK 48633 Ignition Coil

NGK HEI Ignition Coil for Dodge and Jeep

The NGK HEI Ignition Coil, part number 48633, is built for 12-volt electronic ignition systems that use a HEI coil design. It is a direct-fit ignition coil option for select Dodge Dakota, Durango, Ram, and Jeep Cherokee, Grand Cherokee, TJ, and Wrangler applications from 1998 through 2003.

Key Features

• NGK HEI Ignition Coil for electronic ignition systems
• 12-volt coil with blade terminals
• Female connector and male terminal design
• Non-oil-filled construction
• Built to meet or exceed OE standards for durability and performance
• Part number 48633, also referenced as U1085

Product Details

NGK’s HEI Ignition Coil line is developed for consistent ignition performance and broad late-model domestic coverage. This coil is manufactured and tested under controlled conditions to support OE-style fitment and dependable operation in everyday driving. For buyers searching for an ignition coil for a 1998-2003 Dodge Ram 1500, 1998-2002 Dodge Ram 2500, or 1998-2002 Jeep Wrangler, part number 48633 provides a focused replacement option backed by NGK’s long-standing ignition expertise.

This part cross-references Standard Ignition UF-198 for the same application.

Vehicle Fitment

• Fits 1998-2003 Dodge Dakota, N/A
• Fits 1998-2003 Dodge Durango, N/A
• Fits 1998-2003 Dodge Ram 1500, N/A
• Fits 1999-2003 Dodge Ram 1500 Van, N/A
• Fits 1999-2003 Dodge Ram 2500 Van, N/A
• Fits 1999-2003 Dodge Ram 3500 Van, N/A
• Fits 1998-2002 Dodge Ram 2500, N/A
• Fits 1998-2002 Dodge Ram 3500, N/A
• Fits 1998-2002 Jeep TJ, N/A
• Fits 1998-2002 Jeep Wrangler, N/A
• Fits 1998-2000 Jeep Cherokee, N/A
• Fits 1998 Dodge B1500, N/A
• Fits 1998 Dodge B2500, N/A
• Fits 1998 Dodge B3500, N/A
• Fits 1998 Jeep Grand Cherokee, N/A

Common Replacement Uses

• Restoring weak or inconsistent spark output
• Addressing misfire concerns tied to ignition coil wear
• Replacing a failed coil on Dodge Ram and Jeep ignition systems
• Correcting hard-start or no-start conditions related to coil failure
• Resolving ignition performance issues under load or at higher engine speeds

Installation Notes and Quality Assurance

Verify the coil type, terminal style, and connector configuration before installation. This NGK ignition coil uses a 2-terminal blade layout with a female connector and male terminal interface, so matching the original electrical connection is important for proper fitment. Confirm vehicle application by year, make, and model before ordering, especially on Dodge Ram, Dakota, Durango, and Jeep Cherokee or Wrangler platforms.

NGK manufactures ignition coils to meet or exceed OE standards and validates designs in an ISO 17025 accredited test lab under demanding conditions. The brand’s HEI Ignition Coil line reflects NGK’s focus on ignition system coverage, durability, and operational consistency.