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NGK 48937 Ignition Coil
| Brand | NGK 48937 |
|---|---|
| Coil Type | COP (Waste Spark) |
| Connector Gender | Female |
| Ignition Type | Distributorless |
| Mounting Bracket Included | No |
| Oil Filled | No |
| Part Number | U4042 |
| Stock Number | 48937 |
| Terminal Gender | Male |
| Terminal Quantity | 2 |
| Terminal Type | Blade |
| Voltage | 12 |
| Product line | NGK COP (Waste Spark) Ignition Coil |
| Fits | Ram, Dodge, Chrysler, and Jeep · 18 vehicles |
OE-standard quality. Built to meet or exceed original equipment durability and performance.
Waste spark design. COP ignition coil for distributorless systems.
Blade terminals. Female connector with male terminals for a secure electrical connection.
Cross-references Delphi GN10458, NGK 48937 and Standard Ignition UF-601 for the same application. See all 10.
NGK COP Ignition Coil for Twin Spark Systems
The NGK 48937 ignition coil is built for distributorless ignition systems that use COP (Waste Spark) design and 12-volt operation. It is a direct-fit ignition coil option for select Ram, Dodge, Chrysler, and Jeep vehicles with Twin Spark ignition systems.
Key Features
- 12-volt ignition coil for distributorless systems
- COP (Waste Spark) coil type
- Blade terminal design with 2 terminals
- Female connector and male terminal configuration
- Oil-filled: No
- NGK part number 48937 / U4042
Product Details
NGK ignition coils are engineered to meet or exceed OE standards for durability and consistent ignition performance. The NGK COP (Waste Spark) Ignition Coil line is backed by the brand’s long history in ignition components and is developed with testing practices used to verify performance under demanding conditions. This NGK 48937 coil is a fitment-based replacement for vehicles such as the 2008-2010 Dodge Ram 1500, 2008-2009 Jeep Grand Cherokee, and 2011-2013 Ram 1500 with Twin Spark ignition systems.
This part cross-references Delphi GN10458 for the same application.
What This Ignition Coil Helps Address
- Engine misfire caused by weak or inconsistent spark output
- Hard starting related to ignition coil failure
- Rough idle from degraded coil performance
- Loss of power under load from ignition breakdown
- Check engine light conditions tied to ignition coil faults
Installation Notes and Fitment Tips
Compatible With 2011-2013 Ram 1500, N/A; 2011 Ram Dakota, N/A; 2008-2010 Dodge Dakota, N/A; 2008-2010 Dodge Ram 1500, N/A; 2008-2009 Chrysler Aspen, N/A; 2008-2009 Dodge Durango, N/A; 2008-2009 Jeep Commander, N/A; and 2008-2009 Jeep Grand Cherokee, N/A. Verify the Twin Spark ignition system and connector style before installation. The blade terminal and female connector layout should match the original coil configuration for proper fitment.
Quality Assurance
NGK develops and tests ignition coils in an ISO 17025 accredited laboratory and manufactures them to meet or exceed OE standards. The 48937 ignition coil reflects NGK’s OE-focused approach to ignition performance and coverage for late-model domestic and import vehicles.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | Ram | 1500 | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2012 | Ram | 1500 | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2011 | Ram | 1500 | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2011 | Ram | Dakota | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2010 | Dodge | Dakota | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2010 | Dodge | Ram 1500 | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2009 | Chrysler | Aspen | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2009 | Dodge | Dakota | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2009 | Dodge | Durango | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2009 | Dodge | Ram 1500 | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2009 | Jeep | Commander | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2009 | Jeep | Grand Cherokee | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2008 | Chrysler | Aspen | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2008 | Dodge | Dakota | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2008 | Dodge | Durango | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2008 | Dodge | Ram 1500 | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2008 | Jeep | Commander | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
| 2008 | Jeep | Grand Cherokee | 4.7L | V8 | N/A | Twin Spark Ignition System; 8 Required; Includes Hardware; NGK COP (Waste Spark) Ignition Coil |
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