NGK Spark Plug DPR6EA-9 5531
NGK's Standard Plugs are Constructed for Longer Life and Optimum Performance.
Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
Corrugated Ribs Prevent Flashover
Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
Copper Core Aids in Heat Removal
Triple Seals Prevent Leakage
Brand: NGK Spark Plugs
Manufacturer's Part Number: DPR6EA-9
Part Type: Spark Plugs
Product Line: NGK Standard Series Spark Plugs
Boating Solutions Part Number: NGK-5531
UPC: 087295155318
Shorty Spark Plug: No
Resistor: Yes
Manufacturer Heat Range: 6
Electrode Core Material: Copper
Electrode Tip Material: Nickel alloy
Insulator Type: Projected
Spark Plug Thread Size: 12mm
Spark Plug Reach: 0.750 in.
Spark Plug Seat Style: Gasket
Wrench Diameter: 11/16 in.
Ground Strap Quantity: One
Quantity: Sold individually.
Notes: Does not include terminal nut.
Outboard Application
- Mariner 50 hp 50 4-cyl. 4-Stroke 2001-1995 .035
- Mariner 45 hp 45 Bodensee 4-cyl. 1998-1995 .035
- Mariner 40 hp 40 3-cyl. 4-Stroke 2001-1998 .035
- Mariner 30 hp 30 2-cyl. 4-Stroke 2002-1999 .035
- Mariner 25 hp 25 4-Stroke 2002-1998 .035
- Mariner 15 hp 15 4-Stroke 2002-1998 .035
- Mariner 9.9 hp 9.9 4-Stroke 2002-1999 .035
- Mercury 60 hp 60 4-cyl. 4-Stroke 2001 .035
- Mercury 50 hp 50 4-cyl. 4-Stroke 2001-1995 .035
- Mercury 45 hp 45 Bodensee 4-cyl. 4-Stroke 2002-1995 .035
- Mercury 40 hp 40 Big Foot 4-cyl. 4-Stroke 2006-2001, 40 3-cyl. 4-Stroke 2002-1998 .035
- Mercury 30 hp 30 2-cyl. 4-Stroke 2002-1999 .035
- Mercury 25 hp 25 4-Stroke 2001-1998 .035
- Mercury 15 hp 15 4-Stroke 2006-1998 .035
- Mercury 9.9 hp 9.9 4-Stroke 2002-1999 .035
- Yamaha 50 hp F50 4-cyl. 4-Stroke OHC Standard 2004-1995, T50 4-cyl. 4-Stroke OHC High Thrust 2004-1995 .035
- Yamaha 40 hp F40 3-cyl. 4-STROKE 2005-2000, F40 4-cyl. 4-STROKE 1999 .035
- Yamaha 30 hp F30OHC 4-Stroke 2005-2001 .035
- Yamaha 25 hp F25 2-cyl. OHC 4-Stroke 2005-1998, T25 2-cyl. OHC 4-Stroke High Thrust 2005-2001 .035
- Yamaha 15 hp F15 2-cyl. 4 STROKE 2004-1998 .035
- Yamaha 9.0 hp F9.9 2-cyl. OHC 4-Stroke Standard 2005 .035
- Yamaha 9.0 hp FT9.9 2-cyl. OHC 4-Stroke Standard 2005 .035
- Yamaha 9.0 hp T9.9 2-cyl. OHC 4-Stroke High Thrust 2005 .035

Great
Before I installed these my motorcycle didn't start. Now it's like a Ferrari. It works way better than it did without sparkplugs.