DENSO PREMIUM CLASS IRIDIUM SPARK PLUG, SOLD INDIVIDUALLY -- 14 mm thread, 12.7 mm reach, 13/16 in. hex size, gasket seat, resistor type, removable terminal, 0.4 mm iridium center electrode, tapered cut U-groove ground electrode, 0.035 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 5378
- Series: Denso Iridium Power
- Product Fit: Direct Fit
- Quantity Sold: Sold Individually
- Electrode Core Material: Iridium
- Plug Type: Resistor
- Anticipated Ship Out Time: Same day - 1 business day
- Gap Size: 0.035 in.
- Reach: 12.7 mm
- Thread Size: 14 mm
- Warranty: 1 year Denso limited warranty
Fits the following Triumph TR3B Years