ACDelco 41-983 Professional Double Platinum Spark Plug

Platinum spark plugs are designed to deliver long-lasting performance and maximize durability.

• One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal
• Helps reduce radio frequency and engine interference, regulate spark plug energy and seal against compression pressures for long life
• Double platinum point pad on center and ground electrode offers durability and consistent voltage demands to help reduce wear on ignition system
• Pure copper core results in cooler electrode temperature for durability and superior fouling resistance

Specifications:
Shell
Thread Size: 14mm
Thread Pitch: 1.25mm
Seat Type: Tapered
Resistor: Yes
Resistor Value: 3.5-6.5K Ohm
Reach: 23.00mm (.90")
Hex Size: 5/8" (16mm)
Insulator Height: 0.9" (23mm)
Gap: .059"


Center Electrode
Material: Platinum


Ground Electrode
Material: Nickel
Type: Single Prong Electrode
Shape: Taper Cut
Quantity: 1


Heat Range: 14

AC Delco 41-983 Spark Plug. Fits MCM 496 Mag & HO and MIE 8.1L & HO

• Replaces Crusader RP030009
• Replaces Mercruiser 33-863622001
• Replaces Marine Power 810E-210
• Replaces NGK PZTR5A-15, TR55IX
• Replaces PCM RP030009
• Replaces Volvo Penta 3861326, 3861327