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1979 Yamaha XS400

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ACDelco 4 Spark Plug
for 1979 Yamaha XS400 -L U/K

ACDelco 4 Spark Plug - 1979 Yamaha XS400 Image 1
ACDelco 4 Spark Plug - 1979 Yamaha XS400 Image 2
ACDelco 4 Spark Plug - 1979 Yamaha XS400 Image 3
ACDelco 4 Spark Plug - 1979 Yamaha XS400 Image 4
ACDelco 4 Spark Plug - 1979 Yamaha XS400

ACDelco
Brand:ACDelco
Part Number: 4
UPC: 00808709111474
Weight: 9.95 lbs
Condition:New



On Sale:

$5.12

Availability:
99 in Stock
Warehouse: US-12
Quantity:

Product Information

Description:

Get the ACDelco 4 Spark Plug for your 1979 Yamaha XS400. Buy now and secure your purchase online!

ACDelco Gold (Professional) RAPIDFIRE Spark Plugs are a high quality alternative to Original Equipment (OE) parts. These RAPIDFIRE Single Platinum Performance Spark Plugs are designed for everyday use and are a high quality replacement for many vehicles on the road today. These premium aftermarket spark plugs have high-quality suppressors that help prevent misfiring, an improved plug to boot seal, and a pure copper core for greater durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system
  • Premium aftermarket replacement part
  • Pure copper core provides great heat transfer and helps maximize plug durability
  • Ribless insulator helps optimize plug to boot seal
  • Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional

Specifications:

Approximate Resistor Value (k ohms):
6-15k ohms
Center Electrode Tip Material:
Platinum
Ground Configuration:
Standard
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Standard
Height (in):
5.1 in
Hex Size (mm):
20.8 mm
Insulator Height:
2.303 in.
Insulator Height:
58.5 mm
Length (in):
9.15 in
Manufacturer Heat Range:
8
Pack Of:
1
Pre-Gap Size:
0.041 in.
Pre-Gap Size:
1.1 mm
Reach:
0.752 in.
Reach:
19.1 mm
Resistor Type:
Yes
Seat Type:
Gasket
Thread Diameter:
0.551 in.
Thread Diameter:
14 mm
Weight (lb):
9.95 lb
Width (in):
9.85 in

Features and Benefits:

  • – Apply dielectric grease into the boot area to reduce the chance of exterior tracking on the buttress tower of the spark plug. This grease also promotes a good heat transfer between the spark terminal screw and boot terminal.
  • – Before installing new spark plugs, use a gap guide to make sure your new spark plugs have the correct gap. NOTE: ACDelco Professional Iridium Spark Plugs are pre-gapped during manufacturing. Never attempt to gap an ACDelco Professional Iridium Spark Plug. You could damage the spark plug. Replace any incorrectly gapped ACDelco Professional Iridium Spark Plugs with plugs that are correctly gapped.
  • – Brush or air blast dirt away from the well areas before removing spark plugs. CAUTION: Use goggles to protect eyes from debris when applying compressed air to spark plug wells.
  • – Grasp the spark plug boot and gently rotate it 90 degrees counterclockwise. Pull the spark plug boot and cable away from the spark plug. If necessary, use a spark plug boot removing tool. DO NOT grab or violently pull spark plug cables.
  • – Install spark plugs or glow plugs to the proper torque per the manufacturers' specification.
  • – Remove each spark plug and place each one in a tray by cylinder number. This will help identify and relate any unusual condition to the cylinder involved.
  • – Use the correct deep socket size to loosen each spark plug one or two turns. NOTE: To remove spark plugs from aluminum heads, allow the engine to cool. The heat of the engine, in combination with a spark plug that is still hot, may cause the spark plug threads to strip the cylinder head upon removal.
  • Visually inspect spark plugs for signs of wear. Follow these steps for removing spark plugs for inspection, servicing or replacement:

Specifications:

Country of Origin:
US

ACDelco 4 Spark Plug compatibility with your 1979 Yamaha XS400...

Last Updated: 02/29/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1981

 

1980

 

1979

 

1978

 

1977

 

1981

 

1980

 

1979

 

1978

 

1977

 
Yamaha XS400

-L U/K
2
 
Gold-RAPIDFIRE
Gap 0.032 (in)
 

Yamaha XS400



-L U/K Gold-RAPIDFIRE
Gap 0.032 (in)

2 Per Vehicle

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