NGK - 4323 Spark Plug Set BR6FS

Includes 8 Plugs

NGK-BR6FS Direct Cross To MR43T

260 - 270 HP Non Vortec - 454 Standard

Fits Most GM Engines Up To About 1997

Fits Most Pre-Vortec Engines

Not for Indmar LT1 engines order Item # NGK-2238-TR5

Premium NGK spark plugs are known for their reliable performance and superior anti-fouling characteristics

• Part number BR6FS
• Stock number 4323
• 14mm thread size
• Resistor
• Tapered Seat
• Gap 0.031 in. (0.8mm)
• 5/8 in. or 16mm hex
• Replaces AC Delco MR43-T
• Replaces Crusader 97782
• Replaces Mercruiser 33-898264001
• Replaces Marine Power 0003-015
• Replaces Champion RV8C
• Replaces BRP 0763819

Recommended by the manufacturers for optimum performance, these spark plugs are the correct heat range for your marine engine