Skip to content
Champion 58 J18Y Marine Inboard Outboard 14mm Nickel Copper Plus ISO SAE Standard Spark Plug
- 14mm Nickel Copper Plus ISO SAE Standard Spark Plug for Marine Inboard Outboard Engine
- Copper Plus - Dependable Performance and Durability
- Copper Core Center Electrode Allows for Accurate Control of Heat Range for Longer Life
- Superior Corrosion Resistance
- Built to ISO and SAE Standards for Proven Performance
- Seat Type: Flat
- Hex Size: 0.813 in.
- Hex Size: 20.650mm
- Hex Type: Hex
- Thread Diameter: 0.551 in.
- Thread Diameter: 14.000mm
- Reach: 0.375 in.
- Insulator Height: 0.09 in.
- Pre-Gap Size: 0.035 in.
- Pre-Gap Size: 0.90mm
- Center Electrode Tip Material: Nickel
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Classification: Champion Copper Plus
- Resistor Type: Yes
- Manufacturer Heat Range: 18
- Electrical Terminal Type: Non-Removable Nut
- Indexed: No
- Center Electrode Diameter: 0.094 in.
- Ground Electrode Material: Nickel Copper Alloy
- Installed Height: 2.24 in.
- Insulator Projection: 0.09 in.
- Taper Diameter 0.31 in.
- For use with:
- Aero Marine AM4000 4 H.P.
- Allis-Chalmers Tecumseh 2-Cycle
- Barr (Conversions) - 8 cyl. 383 Chrysler 2-bbl.
- Barr (Conversions) - 8 cyl. 413 Chrysler
- Barr (Conversions) - 8 cyl. 455 Oldsmobile
- Barr (Conversions) - 8 cyl. 455 Oldsmobile 2-bbl.
- Barr (Conversions) - 8 cyl. 455 Oldsmobile 4-bbl.
- Barr (Conversions) - 8 cyl. 455 Pontiac 2-bbl.
- Barr (Conversions) - 8 cyl. 455 Pontiac 4-bbl.
- Berkeley Marine 8 cyl. 455 Oldsmobile
- Flymo Kirby KAV74
- Gilson Tecumseh 2-Cycle
- Goff GMP 455 8 cyl.
- Indmar Marine - 8 cyl. 350 Oldsmobile
- Indmar Marine - 8 cyl. 403 Oldsmobile
- Indmar Marine - 8 cyl. 455 Oldsmobile
- International Tecumseh AH520
- King 8 cyl. 455 270 H.P.
- Le Roi 125G1 3/8" Heads Distributor Ignition
- Le Roi 125G2 3/8" Heads Distributor Ignition
- Le Roi 125TA 3/8" Heads Distributor Ignition
- Le Roi 150RG2 3/8" Heads Distributor Ignition
- Le Roi 85G1 3/8" Heads Distributor Ignition
- Palmer-Greenwich M304 Light Service
- Palmer-Greenwich M345 Light Service
- Palmer-Greenwich MKIV-115 Light Service
- Palmer-Greenwich MKVI-150 Light Service
- Palmer-Greenwich MKVIII 200 Light Service
- Palmer-Greenwich MKVIII 225 Light Service
- Palmer-Greenwich MKVIII 275 Light Service
- Palmer-Greenwich MKVIII 300 Light Service
- Toro S-140
- Toro S-200
- Toro S-521 Tecumseh 5hp
- Volvo Penta 16A
- Volvo Penta 16C
- Wright B316
- Wright GS2016
- Chainsaws
- Commercial & Industrial Engines
- CATERPILLAR D320, D339, D342, D343, D353 STARTING ENG FOR DIESELS, 14mm Heads
- CATERPILLAR D375, D379, D397, D398, D4600 STARTING ENG FOR DIESELS, 14mm Heads
- CHRYSLER IND54 GASOLINE, Light Service
- LE ROI 125G1, 125G2, 125TA 3/8" Rch. w/Dist. Ign. High Pres. Wash.
- LE ROI 85G1, 150RG2 3/8" Rch. w/Dist. Ign. High Pres. Wash.
- Farm Tractors & Equipment, Construction Machinery
- CATERPILLAR 561, 571A, 572E, 583H Pipelayers
- CATERPILLAR 619C, 621, 630, 631, 632, 633, 641 Wheel Tractors
- CATERPILLAR 650, 651, 657, 660, 666, 824, 834 Wheel Tractors
- CATERPILLAR 933, 955, 977, 988 Starting Engines, 14mm Heads
- CATERPILLAR Graders 12, 30, 42, 44, 48 Starting Engines, 14mm Heads
- CATERPILLAR Graders 66, 77, 112, 212, 666 Starting Engines, 14mm Heads
- MEYER Hay Dryer
- Inboard Marine
- BARR (Conversions) , 383 cid 2-bbl. (1971-60) CHRYSLER ENGINES:
- BARR (Conversions) 413 cid (1965-63) CHRYSLER ENGINES:
- BARR (Conversions) 455 cid (1978-76) OLDSMOBILE ENGINES:
- BARR (Conversions) 455 cid 2-bbl. (1971) OLDSMOBILE ENGINES:
- BARR (Conversions) 455 cid 2-bbl. (1971) PONTIAC ENGINES:
- BARR (Conversions) 455 cid 4-bbl. (1974-72) OLDSMOBILE ENGINES:
- BARR (Conversions) 455 cid 4-bbl. (1971-70) PONTIAC ENGINES:
- BERKELEY (1976-68) Oldsmobile 455 cid
- GOFF (1973) GMP 455
- INDMAR (1982-76) Oldsmobile 350 & 403 cid Engs.
- INDMAR (1976-75) Oldsmobile 455 cid Engs.
- KING (1973-71) 455 cid, 270 h.p.
- PALMER-GREENWICH MKIV-115, M304, M345 Light Service
- PALMER-GREENWICH MKVI-150 Light Service
- PALMER-GREENWICH MKVIII 200, 225 Light Service
- PALMER-GREENWICH MKVIII 275, 300 Light Service
- VOLVO PENTA , 16A, 16C B/BB Series
- Industrial Tractors & Lift Trucks
- CATERPILLAR D2, D4, D6, D7, D8, D9, RD4, DW15 STARTING ENGINES, 14mm Heads
- CATERPILLAR DW20, DW21, 824, 834 STARTING ENGINES, 14mm Heads
- Lawn Mowers
- FLYMO w/Kirby KAV74 Engines.
- Outboard Marine
- AERO MARINE AM4000 (1973-70) 4 h.p.
- Manufacturer: Champion
- Model Number: J18Y
- Part Number: 58
- Also Known As:
- Autolite 86
- Bosch W10F, W10FC, W9F, W9FC, WR10F, WR10FC, WR9F, WR9FC, WR9FP
- Champion RJ18YC, RJ18YCT04
- Denso W14PRU, W14PU, W9PRU, W9PU
- Motorcraft A82, AR82, AS52CF4
- NGK BPM7, BPR4S15, XR4
- Prestolite 1482