DENSO REGULAR CLASS TRADITIONAL SPARK PLUG, SOLD INDIVIDUALLY -- 18 mm thread, 11.6 mm reach, 13/16 in. hex size, tapered seat, resistor type, removable terminal, projected tip, U-groove ground electrode, 0.027 in. gap size, 20 heat range; Designed with heavy duty insulator that provides unparalleled dielectric strength and thermal conductivity under extreme temperatures; The five-rib design prevents flashover while decreasing voltage loss; Its copper glass seal bonds the center electrode and insulator together for a gas-tight seal; Features a platinum center electrode that utilizes platinum to shrink the surface area of the center electrode tip for maximum firing performance and minimum voltage requirements; The platinum ground electrode resists gas and electrical erosion and corrosion extending service intervals to 60,000 miles.
- Brand SKU#: Denso 5013
- Series: Denso Standard
- Product Fit: Direct Fit
- Quantity Sold: Sold Individually
- Electrode Core Material: Copper
- Plug Type: Resistor
- Anticipated Ship Out Time: Same day - 1 business day
- Gap Size: 0.027 in.
- Reach: 11.6 mm
- Thread Size: 18 mm
- Warranty: 1 year Denso limited warranty
Fits the following Mercury Custom Years
- 1955 | Base | 8 Cyl 4.8L
- 1956 | Base | 8 Cyl 5.1L