Champion L77JC4 Spark Plug (821)
Champion L77JC4 spark plug application lookup chart. Order L77JC4 spark plugs
online. Champion part number 821.
Champion spark plug model number:
L77JC4

Gap setting: .033"

Other Champion part numbers:
821, L4G, L77J4, L77JC

L77JC4 cross reference part numbers:
AC Delco M40FFX, M41FF
Autolite 2634
Bosch W250T1, W280S1S, W280T13S,
W340S1S, W3AC, W3AS, W4AC, WO8AS
Denso W27FC, W27FS-GU, W27FS-U,
W27FS-U10, W31FS, W31FS-GU
Motorcraft AE901Z, AV091X4,
AV701CU10, AV901X4
NGK 2129, B10H, B10HS, B7HS-10,
B9HCS, B9HS, B9HS-10, B9HV, B9HVX
Champion Spark Plug
Champion Spark Plugs
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L77JC4 spark plug application chart:
BMW R50/2 1969-1960
Cobra KING 1997
Kawasaki F7 1975-1971
Kawasaki H1 Mach III 1975-1972
Kawasaki KX450 1974
Evinrude 100 H.P.
Evinrude 115 H.P.
Evinrude 14 H.P.
Evinrude 15 H.P.
Evinrude 2 cyl. 35 H.P.
Evinrude 2 cyl. 40 H.P.
Evinrude 2 cyl. 48 H.P.
Evinrude 2 cyl. 50 H.P.
Evinrude 2 cyl. 55 H.P.
Evinrude 2 cyl. 60 H.P.
Evinrude 3 cyl. 49 60 H.P.
Evinrude 3 cyl. 49 70 H.P.
Evinrude 3 cyl. 49 75 H.P.
Evinrude 3 cyl. 55 H.P.
Evinrude 3 cyl. 56 60 H.P.
Evinrude 3 cyl. 56 70 H.P.
Evinrude 3 cyl. 65 H.P.
Evinrude 3.6L OMC 300 H.P.
Evinrude 4 cyl. V-4 100 H.P.
Evinrude 4 cyl. V-4 65 H.P.
Evinrude 4 H.P.
Evinrude 5 H.P.
Evinrude 50 H.P.
Evinrude 6 cyl. V-6 200 H.P.
Evinrude 6 cyl. V-6 225 H.P.
Evinrude 85 H.P.
Evinrude Commercial Engine 10 H.P.
Evinrude Commercial Engine 115 H.P.
Evinrude Commercial Engine 14 H.P.
Evinrude Commercial Engine 15 H.P.
Evinrude Commercial Engine 185 H.P.
Evinrude Commercial Engine 6.5 H.P.
Evinrude Standard Ignition 4 H.P.
Evinrude 10E Standard Ignition 10 H.P.
Evinrude 10EL Standard Ignition 10 H.P.
Evinrude 10R Standard Ignition 10 H.P.
Evinrude 10RL Standard Ignition 10 H.P.
Evinrude 40E 2 cyl. Standard Ignition 40 H.P.
Evinrude 40E Standard Ignition 40 H.P.
Evinrude 40EL 2 cyl. Standard Ignition 40 H.P.
Evinrude 40EL Standard Ignition 40 H.P.
Evinrude 40R 2 cyl. Standard Ignition 40 H.P.
Evinrude 40R Standard Ignition 40 H.P.
Evinrude 40RL 2 cyl. Standard Ignition 40 H.P.
Evinrude 40RL Standard Ignition 40 H.P.
Evinrude 9E Standard Ignition 9 H.P.
Evinrude 9EL Standard Ignition 9 H.P.
Evinrude 9R Standard Ignition 9 H.P.
Evinrude 9RL Standard Ignition 9 H.P.
Evinrude CV4 Commercial Engine 115 H.P.
Evinrude CV6 6 cyl. 150 H.P.
Evinrude CV6 6 cyl. 175 H.P.
Evinrude Excel 4 H.P.
Evinrude HC LC Commercial Engine 65 H.P.
Evinrude Ultra 4 H.P.
Johnson 1 cyl. 5 H.P.
Johnson 100 H.P.
Johnson 115 H.P.
Johnson 125 H.P.
Johnson 14 H.P.
Johnson 15 H.P.
Johnson 2 cyl. 35 H.P.
Johnson 2 cyl. 40 H.P.
Johnson 2 cyl. 48 H.P.
Johnson 2 cyl. 50 H.P.
Johnson 2 cyl. 55 H.P.
Johnson 2 cyl. 60 H.P.
Johnson 3 cyl. 49 60 H.P.
Johnson 3 cyl. 49 70 H.P.
Johnson 3 cyl. 49 75 H.P.
Johnson 3 cyl. 55 H.P.
Johnson 3 cyl. 56 60 H.P.
Johnson 3 cyl. 56 70 H.P.
Johnson 3 cyl. 60 H.P.
Johnson 3 cyl. 65 H.P.
Johnson 3.6 H.P.
Johnson 4 cyl. V-4 100 H.P.
Johnson 4 cyl. V-4 65 H.P.
Johnson 4 H.P.
Johnson 50 H.P.
Johnson 6 cyl. V-6 200 H.P.
Johnson 6 cyl. V-6 225 H.P.
Johnson 85 H.P.
Johnson COM. 10 H.P.
Johnson COM. 115 H.P.
Johnson COM. 14 H.P.
Johnson COM. 15 H.P.
Johnson COM. 185 H.P.
Johnson COM. 6.5 H.P.
Johnson  Standard Ignition 4 H.P.
Johnson 10E Standard Ignition 10 H.P.
Johnson 10EL Standard Ignition 10 H.P.
Johnson 10R Standard Ignition 10 H.P.
Johnson 10RL Standard Ignition 10 H.P.
Johnson 40E Standard Ignition 40 H.P.
Johnson 40EL Standard Ignition 40 H.P.
Johnson 40R Standard Ignition 40 H.P.
Johnson 40RL Standard Ignition 40 H.P.
Johnson 9E Standard Ignition 9 H.P.
Johnson 9EL Standard Ignition 9 H.P.
Johnson 9R Standard Ignition 9 H.P.
Johnson 9RL Standard Ignition 9 H.P.
Johnson CV6 6 cyl. 150 H.P.
Johnson CV6 6 cyl. 175 H.P.
Johnson Excel 4 H.P.
Johnson HC LC COM. 65 H.P.
Johnson Ultra 4 H.P.
Mariner 25A 648 25 H.P.
Mariner 25B 690 25 H.P.
Mariner 25C 695 25 H.P.
Mariner Marathon 6 cyl. V-6 3 H.P.
Mariner Marathon 25 648 25 H.P.
Mariner Marathon 25 694 25 H.P.
Mariner Marathon 25 695 25 H.P.
Mariner W25 694 25 H.P.
Mariner W25 695 25 H.P.
Mercury Marine --- 18 H.P.
Mercury Marine --- 7.5 H.P.
Mercury Marine --- 9.8 H.P.
Mercury Marine Offshore 2.5L EFI 280 H.P.
Mercury Marine Sport, SS 2.5L EFI 280 H.P.
Outboard Marine (O.M.C.) Sea Drive 1.6L  
Outboard Marine (O.M.C.) Sea Drive 1.8L  
Outboard Marine (O.M.C.) Sea Drive 2.0L  
Outboard Marine (O.M.C.) Sea Drive 2.6L  
Outboard Marine (O.M.C.) Sea Drive 2.7L  
Outboard Marine (O.M.C.) Sea Drive 3.0L  
Outboard Marine (O.M.C.) Sea Drive 3.6L  
Outboard Marine (O.M.C.) Sea Drive 4.0L  
Yamaha 225SW 3.1L 225 H.P.
Yamaha C130 130 H.P.
Yamaha L225 3.1L 225 H.P.
Yamaha L225 EFI 225 H.P.
Yamaha L250 EFI 250 H.P.
Yamaha LX225 EFI 225 H.P.
Yamaha LX250 EFI 250 H.P.
Yamaha S130 130 H.P.
Yamaha S225 EFI 225 H.P.
Yamaha S250 EFI 250 H.P.
Yamaha SW EFI 225 H.P.
Yamaha SW EFI 250 H.P.
Yamaha SX225 EFI 225 H.P.
Yamaha SX250 EFI 250 H.P.
Yamaha V Max OX66 EFI 250 H.P.
Yamaha V76 EFI 225 H.P.
Yamaha V76 EFI 250 H.P.
Yamaha V76X 3.1L 225 H.P.
Yamaha VMAX EFI 225 H.P.
Yamaha VMAX EFI 250 H.P.
Yamaha VX225 EFI 225 H.P.
Yamaha VX250 250 H.P.
Yamaha VX250 EFI 250 H.P.