Denso 4221 U20ESR-N Nickel Spark Plug

Name: Denso 4221 U20ESR-N Nickel Spark Plug
Brand: Denso
SKU: 4221

SKU #U20ESR-N

ITEM #DEN4221

BRAND DENSO

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12 in stock

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$5.74

$5.15 USD

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Description
Denso spark plugs are 100% pre-fired to assure the highest quality possible. Machine rolled threads prevent seizing or cross threading during installation and removal. 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.
Product Specifications
- Shell
- Thread Diameter10mm
- Thread Pitch1.0mm
- Seat TypeGasket
- Reach19mm (3/4")
- Hex Size5/8" (16mm)
- Terminal TypeThreaded Stud
- Overall HeightBantam
- Gap.031" (0.8mm)
- Center Electrode
- MaterialNickel
- TypeStandard
- Size2.5mm
- ProjectionNon-Projected
- Ground Electrode
- MaterialNickel
- TypeStandard
- Quantity1
- Specifications
- ResistorYes
- Resistor Value5k Ohm
- Heat Range20
- Torque SpecsCast Iron: 7-11 lb. ft. Aluminum: 7-11 lb. ft.
- Part Information
- BrandDenso
- Warranty12 Months
- Longevity20-30k Miles
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Denso 4221 U20ESR-N Nickel Spark Plug

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