The DENSO W27ES-U spark plug is an original-equipment replacement designed for dependable ignition performance in compatible automotive applications. This standard-size spark plug features a copper core center electrode that promotes efficient thermal conductivity, helping transfer heat away from the firing end for reliable operation across a broad range of driving conditions.
Manufactured by DENSO, the W27ES-U uses a pre-fired construction to help ensure consistent operation from installation. Its unique five-rib insulator helps reduce flashover and voltage loss, supporting stable spark delivery. A dual copper and glass seal bonds the center electrode and insulator together to create a gas-tight seal, helping protect internal components and maintain dependable performance.
Use the DENSO W27ES-U, manufacturer part number 4046, for vehicles and equipment specified for this spark plug. Fitment varies by application, so confirm the vehicle manufacturer’s requirements, engine specifications, heat range, and thread style before installation. This product is supplied as an individual spark plug and is intended to replace the corresponding original-equipment plug where applicable.
Features:
- Brand: DENSO
- Model: W27ES-U
- Manufacturer Part Number: 4046
- Vendor Part Number: 4046
- Application: Original-equipment spark plug for compatible automotive applications
- Construction: 100 percent pre-fired for reliable operation
- Electrode: Copper core center electrode for superior thermal conductivity
- Insulator: Five-rib design helps reduce flashover and voltage loss
- Sealing: Dual copper and glass seal provides a gas-tight bond between the center electrode and insulator
- Fitment: Verify vehicle and engine compatibility before installation