Autolite 421 Nickel Spark Plug

Name: Autolite 421 Nickel Spark Plug
Brand: Autolite
SKU: 421
Price: 2.79 USD
Availability: Discontinued

SKU #421

ITEM #AUT421

BRAND AUTOLITE

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Solid Terminal
Designed for Small Engines
Standard Packaging

This item has been discontinued.

Description
Traditional nickel electrodes. Copper core improves resistance to fouling. Power tip extends further into the combustion chamber to aid in self-cleaning, reducing fouling at low rpms and pre-ignition at high speeds.
Product Specifications
- Shell
- Thread Diameter14mm
- Thread Pitch1.25mm
- Seat TypeGasket
- Reach12.7mm (1/2")
- Hex Size13/16" (21mm)
- Terminal TypeSolid
- Gap.031" (0.8mm)
- Center Electrode
- MaterialNickel
- TypeStandard
- Size2.5mm
- ProjectionNon-Projected
- Ground Electrode
- MaterialNickel
- TypeStandard
- Quantity1
- Specifications
- ResistorYes
- Resistor Value125 Ohms
- Heat Range2
- Torque SpecsCast Iron: 26-29 lb. ft. Aluminum: 15-22 lb. ft.
- Part Information
- BrandAutolite
- Warranty2 Years
- Longevity30k Miles
Fitment
Verify Fitment

Automotive

Sorry, no automotive applications are associated with this part.

Powersports
- 2004
  - Yamaha
    
    SV1200 WaveRunner SUV1200 Base Verify fitment
- 2003
  - Yamaha
    
    SV1200 WaveRunner SUV1200 Base Verify fitment
- 2002
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    SV1200 WaveRunner SUV1200 Base Verify fitment
- 2001
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    XL700 WaveRunner XL700 Base Verify fitment
- 2000
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    XL700 WaveRunner XL700 Base Verify fitment
- 1999
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    XL700 WaveRunner XL700 Base Verify fitment
- 1998
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    XL1200 WaveRunner XL1200 Base Verify fitment
- 1997
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    ZX Base Verify fitment
  - Yamaha
    
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- 1996
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- 1995
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Marine
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    70 3-Cyl. 2-Stroke Verify fitment
    
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    Pro V 150, P150 Verify fitment
    
    SX225/250, LX225/259 SW EFI OX66 Verify fitment
    
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Autolite 421 Nickel Spark Plug

This item has been discontinued.

Verify Fitment

Automotive

Powersports

Marine