Denso 5049 L14RU Nickel U-Groove Spark Plug

Denso U-Groove spark plugs feature a u-shaped groove in the ground electrode, giving the flame a groove to grow in, resulting in less flame dissipation and a larger flame front for a more complete combustion. This translates to better fuel efficiency and improved throttle response. Machine rolled threads prevent seizing or cross threading during installation and removal. 100% pre-fired to assure the highest quality possible. Purified alumina powder insulator provides exceptional strength and thermal conductivity. Five rib insulator prevents flashover. Copper-glass seal bonds center electrode and insulator for a gas-tight seal.

• Shell
• Thread Diameter18mm
• Thread Pitch1.5mm
• Seat TypeGasket
• Reach12mm (.472")
• Hex Size7/8" (22mm)

• Center Electrode
• MaterialNickel
• TypeStandard
• Size2.5mm

• Ground Electrode
• MaterialNickel
• TypeU-Groove
• Quantity1

• Specifications
• ResistorYes
• Heat Range14
• Torque SpecsCast Iron: 32-38 lb. ft. Aluminum: 28-34 lb. ft.

• Part Information
• BrandDenso
• Warranty12 Months
• Longevity20-30k Miles

Automotive

Sorry, no automotive applications are associated with this part.

Powersports

Sorry, no powersports applications are associated with this part.

Non-Automotive

Sorry, no non-automotive applications are associated with this part.