Genuine NGK BPR4ES SOLID Spark Plug 6578 For Kawasaki Honda Kohler
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Genuine NGK BPR4ES SOLID Spark Plug 6578 For Kawasaki Honda Kohler

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SKU: 6578 Barcode: 087295165782

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Description Fits Models Warranty

Genuine NGK® BPR4ES SOLID spark plug, stock #6578, for select Kawasaki, Honda and Kohler 4-cycle engines. Features a solid, non-removable terminal. Please verify your engine model and original spark plug number for proper fitment. Actual pictures shown. Made In Japan

Includes:

  • Spark plug (1pc)

Specs:

  • NGK stock #: 6578
  • Spark plug: BPR4ES SOLID
  • Resistor: Yes
  • Terminal: Solid, non-removable
  • Thread size: M14 × 1.25
  • Reach: 19mm (3/4")
  • Hex size: 13/16" (20.8mm)
  • Heat range: 4
  • Seat type: Gasket
  • Pre-gap: 0.8mm (0.032")

Verify and adjust the spark plug gap to the engine manufacturer's specification before installation.

Replaces OEM Numbers:

  • Ariens / Gravely: 21536100, 21538500, 21547800
  • Honda: 98079-54846, 9807954846
  • John Deere: M805853
  • Kawasaki: 92070-2112, 920702112, 92070-7004, 920707004
  • Toro: 98079-54846, 9807954846
  • Yamaha: 94702-00819-00

Spark Plug Cross-Reference:

  • NGK: BPR4ES SOLID, 6578
  • Champion: 405, RN14YC
  • Autolite: 4265
  • Stens: 130-938


⚠️ IMPORTANT FITMENT

  • This listing is for NGK stock #6578 BPR4ES SOLID with a non-removable terminal
  • Some Honda engines used different spark plugs depending on engine type and serial number
  • Verify BPR4ES or Honda 98079-54846 before ordering

Kawasaki

Engines:

  • FR600V, FR651V, FR691V, FR730V
  • FS481V, FS541V, FS600V, FS651V, FS691V, FS730V
  • FX541V, FX600V, FX651V, FX691V, FX730V, FX751V, FX801V, FX850V

Honda

Engines:

  • GCV520U, GCV530, GCV530R, GCV530U
  • GX120K1, GX120RT2, GX120U1, GX120UT1, GX120UT3
  • GX160K1, GX610
  • GXV120, GXV140, GXV160, GXV160A1, GXV160H2, GXV160K1
  • GXV160UA1, GXV160UH2
  • GXV520U, GXV530, GXV530R, GXV530U

Kohler

Command Pro CS Series:

  • CS4, CS6, CS8.5, CS10, CS12, CS12.75

Warranty

Proline® internal engine components e.g  cylinder , piston, bearings piston rings and electrical parts have a 90 day warranty from the day of purchase. (**Conditions Apply)

Carburetors carry a 30 day warranty from day of purchase.

All other Proline® parts carry a 120 day warranty.

Original (OEM) parts (Tools excluded) are 30 days. If you need to return a part please contact us for a Return Authorization Number (RMA)

If you need to return an item, please contact us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.

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