Description
Section: B-16
L77JC4 Champion Spark Plugs 821 EACH
Manufacturer: Champion
Part Number: L77JC4 / 821
Cross References: CHP L77JC4, 86-7821, 0332-0136, 03320136
Specifications for Champion L77JC4
Thread diameter: 14mm
Thread reach: 12.7mm
Seat type: flat
Hex size: 21mm
Tip configuration: non projected
Construction: Standard construction
Terminal type: Solid
Champion L77JC4 replacement spark plugs:
• Champion L3G
• Champion L4G
• Champion L77J
• Champion L77J4
• Champion L77JC
• Champion stk 821
• NGK 2129
• NGK 2721
• NGK 3626
• NGK 5810
• NGK B10H
• NGK B10HS
• NGK B7HS-10
• NGK B7HS10
• NGK B8HV
• NGK B8HVX
• NGK B9HCS
• NGK B9HS
• NGK B9HS-10
• NGK B9HS10
• NGK B9HV
• NGK B9HVX
• NGK stk 2129
• NGK stk 3626
• NGK stk 5810
(verify fitment using your model or serial number)