Skip to content
  
  
  
    
      
  
  
  
  
  
  
  
    
    
      
        
        
        
          
          NGK 1277 R5674-6 Marine Boat Nickel Copper Core 14mm Racing Series V-Power Spark Plug
          
         
        
        
        
        
          
- Marine Boat Nickel Copper Core 14mm Racing Series V-Power Spark Plug 
 
- Racing Series Plugs are Engineered to Withstand the Harshest Engine Conditions. 
 
- Special Insulator Nose Configurations Improve Throttle Response. 
 
- 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.
 
- Thread Diameter: 14mm
 
- Thread Pitch: 1.25mm
 
- Seat Type: Tapered
 
- Reach: 11mm (7/16")
 
- Hex Sizea; 5/8" (16mm)
 
- Terminal Type: Solid
 
- Center Electrode Material: Nickel
 
- Type: V-Cut
 
- Size: 2.5mm
 
- Projection: Projected
 
- Ground Electrode Material: Nickel
 
- Type: Standard
 
- Resistor: No
 
- Resistor Value: 1K Ohm
 
- Heat Range: 6
 
- Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 7.2-14.5 lb. ft.
 
- For use with:
 
- Manufacturer: NGK 
 
- Model Number: R5674-6 
 
- Part Number: 1277 
 
- Also Known As: 
- Accel 274
 
- ACDelco 1, 42TS, 43TS, R42TS, R43TS
 
- Autolite 13, 14, 24, AR13
 
- Beck Arnley 176-9111
 
- Bosch H6B, HR6BC, HR8BC
 
- Brisk H15YS
 
- Champion BL11Y, RV12YC, RV9YC, stk 400, stk 406
 
- Denso 4510, 5331, ITF20, ITF20TT, PTF20TT, T20P-U, T20PR-U, T20PU, Iridium ITF20, stk 5331, stk 5034, stk 5035
 
- Eyquem 600JS
 
- General Motors 5613230, 5613241, 5613321, 5613324, 5613325
 
- Iskra FT65P
 
- Magneti Marelli TW7NP
 
- Mighty M4F42
 
- Mopar 4318135, 4339429
 
- Motorcraft AF22, AF32, ASF22C, ASF32C, stk 15, stk 3
 
- NGK stk 4449
 
- Splitfire SM002C, SM002E
 
- Unipart GSP761
 
- Valley Forge 23R