NGK
More Information for NGK 6221
{Alternate Inventory Numbers: BM6F}
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NGK 6221  
($1.68/Each)
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NGK 6221 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialNickel
Electrical Terminal TypeRemovable Nut
Gap Size (IN).028
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignStandard
Hex Size (IN)5/8
Insulator Height (mm)40.00
Manufacturer Heat Range6
Part NumberBM6F
Reach (IN).375
Resistance (ohms)1
Seat TypeTapered
Stock Number6221
Thread Diameter (MM)14.00
Standard; OUTBOARD: 1992 TANAKA; CHAINSAW: CAMPBELL-HAUSFELD, CRAFTSMAN (SEARS), HOMELITE, LOMBARD, MCCULLOCH, PARTNER, PISTON POWERED PRODUCTS, YANKEE CLIPPER, BLOWER H.M.C., MCCULLOCK, PUMP HOMELITE, SPRAYER H.M.C., SOLO
NGK standard plugs are constructed for long life and optimum performance. NGK Spark Plugs are at the heart of smooth-running engines around the world.

Features & Benefits:
  • Triple-Gasket Sealing Process
  • Corrugated ribs to prevent flashover
  • High dielectric strength
  • Proper heat transfer
  • Consistent Performance
This spark plug is pre-gapped, but may require minor adjustments with a Spark Plug Gap Tool / Feeler Gauge to match your engine's specifications. For proper engine performance, gaps should be within ±0.004" of OE-Recommended value.
Which NGK Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel V-Power
Copper		 ★ ★ ★
Platinum G-Power
Platinum		 ★★ ★★★★ ★
Double Platinum Laser
Double Platinum		 ★★★★★ ★★ ★★
Iridium IX
Iridium IX		 ★★★ ★★★★★ ★★
Iridium Laser
Iridium Laser		 ★★★★★★ ★★★★ ★★★
Ruthenium HX
Ruthenium		 ★★★★★★★ ★★★★★ ★★★★
Videos

Check, Set & Adjust Spark Plug Gaps

OEM / Interchange Numbers: 2956, 745

Warranty Information:
60 Days