Skip to content
Champion 18 RBL15Y Mercruiser Marine 7.4L 8 Cyl 14mm Nickel Copper Alloy ISO SAE Standard Spark Plug
- 14mm Nickel Copper Alloy ISO SAE Standard Spark Plug for Mercruiser Marine 7.4L 8 Cyl 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: Tapered
- Hex Size: 0.625 in.
- Hex Size: 15.880mm
- Hex Type: Hex
- Thread Diameter: 0.551 in.
- Thread Diameter: 14.000mm
- Reach: 0.441
- Insulator Height: 0.12
- Pre-Gap Size: 0.045 in.
- Pre-Gap Size: 1.15mm
- Center Electrode Tip Material: Nickel
- Ground Electrode Core Material: Nickel
- Ground Electrode Quantity: 1
- Classification: Champion Copper Plus
- Resistor Type: Yes
- For use with:
- Aero Marine 265
- Aero Marine 320 Series
- Aero Marine 375 Series 8 cyl.
- Aero Marine 427 Jet 8 cyl.
- Aero Marine 454 Series 8 cyl.
- Barr (Conversions) 6 cyl. 230 Chevrolet
- Barr (Conversions) 6 cyl. 250 Chevrolet
- Barr (Conversions) 6 cyl. 292 Chevrolet
- Barr (Conversions) 8 cyl. 350 Chevrolet V-8
- Barr (Conversions) 8 cyl. 400 Buick
- Barr (Conversions) 8 cyl. 400 Chevrolet V-8
- Barr (Conversions) 8 cyl. 427 Chevrolet V-8
- Barr (Conversions) 8 cyl. 430 Buick
- Barr (Conversions) 8 cyl. 454 Chevrolet V-8
- Barr (Conversions) 8 cyl. 455 Buick
- Berkeley Marine 8 cyl. 350
- Berkeley Marine 8 cyl. 454
- Chevrolet 6 cyl. 230 Marine
- Chevrolet 6 cyl. 250 Marine
- Chevrolet 6 cyl. 292 Marine
- Chevrolet 8 cyl. 350 Marine V-8
- Chevrolet 8 cyl. 400 Marine V-8
- Chevrolet 8 cyl. 427 Marine V-8
- Chevrolet B60 1990
- Chevrolet C70 1980
- Chris Craft 8 cyl. 5.7L Carb.
- Chris Craft 8 cyl. 5.7L TBI
- Chris Craft 8 cyl. 8.2L Carb.
- Chris Craft 8 cyl. 8.2L MPI
- Chris Craft 305 8 cyl.
- Chris Craft 350 8 cyl. 250 H.P.
- Chris Craft 350 8 cyl. High Performance 300 H.P.
- Chris Craft 350 Q Series 8 cyl.
- Chris Craft Cobra 3.0L OMC
- Chris Craft Cobra 4.3L OMC
- Chris Craft Cobra 8 cyl. 5.0L EFI OMC
- Chris Craft Cobra 8 cyl. 5.0L OMC
- Chris Craft Cobra 8 cyl. 7.4L EFI OMC
- Chris Craft Cobra 8 cyl. 7.4L OMC
- Chris Craft FL 8 cyl. 5.0L
- Chris Craft FLV 8 cyl. High Performance 300 H.P.
- Chris Craft Gi 8 cyl. 7.4L
- Chris Craft GLV 8 cyl.
- Chris Craft GLV 8 cyl. 250 H.P.
- Chris Craft GS 8 cyl. 5.7L
- Chris Craft K Series 8 cyl.
- Chris Craft K Series 8 cyl. 250 H.P.
- Cub Cadet 682
- Cub Cadet 782
- Cushman 222cc 22hp
- Cushman Turf-Truckster 22hp
- Ford Econoline Super Duty 1996
- Ford F Super Duty 1997-1988
- Ford F53 1996-1988
- Flagship Marine 181 FL Transdrive, Inboard & V-Drive
- Flagship Marine 400FEFI 8 cyl. 502 High Performance
- Generac GM 5.7L, 7.4L
- GMC B6000 1991-1981
- GMC C7000 1980
- Guardian Marine Chevrolet 8 cyl. 454
- Hardin Marine H225IO
- Hardin Marine H260IO
- Hardin Marine H280I
- Hardin Marine H305I
- Hardin Marine H320J
- Hardin Marine H320V
- Hardin Marine H350I
- Hardin Marine H454I
- Hardin Marine HM225I
- Hardin Marine HM225J
- Hardin Marine HM225TS
- Hardin Marine HM225V
- Hardin Marine HM260J
- Hardin Marine HM260TS
- Hardin Marine HM260V
- Hardin Marine HM280J
- Hardin Marine HM280TS
- Hardin Marine HM280V
- Hardin Marine HM333J
- Hardin Marine HM333V
- Hardin Marine HM405J
- Hardin Marine HM405V
- Harman House Chevrolet 8 cyl. 454
- Hover Air America 3 Plus 1 4.3L Mercruiser
- International 682
- International 782
- Isuzu NPR 1995-1992
- King 8 cyl. 454 450 H.P.
- Kohler KT17
- Kohler KT19
- Kohler KT21
- Lehman Econ-O-Power 8 cyl. 350 Chevrolet
- Lehman Econ-O-Power 8 cyl. 400 Chevrolet
- Marine Power 181 .460" Reach
- Marine Power 262 200 H.P.
- Marine Power 262 225 H.P.
- Marine Power 350 8 cyl. 260 H.P.
- Marine Power 350 8 cyl. 300 H.P.
- Marine Power 350 8 cyl. 325 H.P.
- Marine Power 454 8 cyl. 330 H.P.
- Marine Power 454 8 cyl. 340 H.P.
- Marine Power 454 8 cyl. 390 H.P.
- Marine Power 454 8 cyl. 440 H.P.
- Marine Power 502 8 cyl. 410 H.P.
- Marine Power 502 8 cyl. 475 H.P.
- Marine Power 502 500X 8 cyl.
- Marine Power 502 700X 8 cyl. 700 H.P.
- Marine Power B 8 cyl. 330 H.P.
- Marine Power BM 8 cyl. 330 H.P.
- Marine Power Vortec MPI 8 cyl. 7.4L 325 H.P.
- Marine Power Vortec MPI 8 cyl. 7.4L 340 H.P.
- Marine Repower 262 GM V-6
- Marine Repower 6 cyl. 229 GM V-6
- Marine Repower 8 cyl. 305 GM
- Marine Repower 8 cyl. 350 GM
- Marine Repower Tapered Seat 292 GM
- Marinetek 250 GM
- Marinetek 262 GM
- Marinetek 6 cyl. 229 GM
- Marinetek 8 cyl. 302 Ford
- Marinetek 8 cyl. 305 GM
- Marinetek 8 cyl. 350 GM
- Marinetek 8 cyl. 454 GM
- Mercruiser 120 4 cyl.
- Mercruiser 140 4 cyl.
- Mercruiser 165 2771484 and Above 6 cyl.
- Mercruiser 175, 185 6 cyl.
- Mercruiser 185 6 cyl.
- Mercruiser 198 8 cyl.
- Mercruiser 2.5L 4 cyl.
- Mercruiser 205 6 cyl.
- Mercruiser 228 8 cyl.
- Mercruiser 230 8 cyl.
- Mercruiser 233 8 cyl.
- Mercruiser 250 8 cyl.
- Mercruiser 255 8 cyl.
- Mercruiser 270 8 cyl.
- Mercruiser 280 8 cyl.
- Mercruiser 3.0 Liter 4 cyl.
- Mercruiser 300 Tempest 8 cyl.
- Mercruiser 320 EFI 8 cyl.
- Mercruiser 330 8 cyl.
- Mercruiser 330 (B-W) 8 cyl.
- Mercruiser 340 8 cyl.
- Mercruiser 370, 400 8 cyl.
- Mercruiser 4.3L 0F802999 & Below 6 cyl.
- Mercruiser 4.3L MPI 6 cyl.
- Mercruiser 4.3LX 6 cyl.
- Mercruiser 400 Cyclone 8 cyl.
- Mercruiser 400 Jet 8 cyl.
- Mercruiser 420 8 cyl.
- Mercruiser 440 Cyclone 8 cyl.
- Mercruiser 454 EFI/MP 8 cyl.
- Mercruiser 454 Mag EFI/MP 8 cyl.
- Mercruiser 454 Mag MPI 8 cyl.
- Mercruiser 454 Magnum Alpha 8 cyl.
- Mercruiser 454 Magnum Bravo 8 cyl.
- Mercruiser 454 MPI 8 cyl.
- Mercruiser 502 Mag (Carb.) 8 cyl.
- Mercruiser 502 Mag EFI/MP 8 cyl.
- Mercruiser 502 Mag MPI 8 cyl.
- Mercruiser 7.4 Liter 8 cyl.
- Mercruiser 7.4L Alpha 8 cyl.
- Mercruiser 7.4L Bravo Model 8 cyl.
- Mercruiser 7.4L EFI 8 cyl.
- Mercruiser 7.4L EFI/MP 8 cyl.
- Mercruiser 7.4L MPI 0L000000 and Below 8 cyl.
- Mercruiser 7.4L TR OB771113-OC407646 8 cyl.
- Mercruiser 7.4LX EFI 8 cyl.
- Mercruiser 7.4LX MPI 8 cyl.
- Mercruiser 8.2L Carb. 8 cyl.
- Mercruiser 8.2L MPI 8 cyl.
- Mercruiser 888 8 cyl.
- Mercruiser HP425 Model 8 cyl.
- Mercruiser HP450 8 cyl.
- Mercruiser HP465 Model 8 cyl.
- Mercruiser HP500 (502 cid) 8 cyl.
- Mercruiser HP500 EFI (502 cid) 8 cyl.
- OMC AJ .460 Reach Tapered Seat
- OMC All Model(s) ---
- OMC All Model(s) 14mm, Tapered Seat
- OMC AT .460 Reach Tapered Seat
- OMC Cobra 3.0L
- OMC Cobra 6 cyl. 4.3L
- OMC Cobra 6 cyl. 4.3L HO
- OMC Cobra 8 cyl. 5.0L Carb.
- OMC Cobra 8 cyl. 5.0L Carb. HO
- OMC Cobra 8 cyl. 5.0L EFI
- OMC Cobra 8 cyl. 5.7L
- OMC Cobra 8 cyl. 5.8L Carb.
- OMC Cobra 8 cyl. 7.4L Carb.
- OMC Cobra 8 cyl. 7.4L Carb. HO
- OMC Cobra 8 cyl. 7.5L
- OMC JU 250
- OMC King 8 cyl. 5.7L
- OMC King Cobra 8 cyl. 7.4L EFI
- OMC King Cobra 8 cyl. 8.2L
- OMC Stringer Models
- OMC Stringer Models 6 cyl. 4.3L
- OMC SX Cobra 6 cyl. 4.3L Eng.Tag NCA Reach .460"
- OMC SX Cobra 8 cyl. 5.0L Carb.
- OMC SX Cobra 8 cyl. 5.7L
- OMC SX Cobra 8 cyl. 5.8L Carb.
- OMC SX Cobra 8 cyl. 7.4L
- OMC SX Cobra 8 cyl. 8.2L
- OMC TJ .460 Reach Tapered Seat
- OMC TT .460 Reach Tapered Seat
- OMC TU-20
- OMC TU-21
- OMC WU Series 250
- OMC XU-20C
- Panther Marine 400 Plus-C 8 cyl.
- Panther Marine 500+ 8 cyl.
- Panther Marine F-110
- Panther Marine F-140
- Panther Marine M-405
- Panther Marine M-454
- Pcm 8 cyl. 302 14mm
- Pcm 8 cyl. 305
- Pcm 8 cyl. 350
- Pcm 8 cyl. 351 14mm
- Pcm 8 cyl. 454
- Pcm 8 cyl. 460 14mm
- Pcm 8 cyl. 5.7L HO Ski TBI 275 H.P.
- Pcm 8 cyl. 7.4L Carb.
- Pcm 8 cyl. 7.4L HO TBI 350 H.P.
- Pcm 200
- Pcm 220
- Pcm 229
- Pcm 250
- Pcm 280
- Pcm 350
- Pcm Models 150
- Pcm Models 230
- Pmc 6 cyl. 229 V-6
- Pmc 6 cyl. 4.3L V-6
- Pmc 8 cyl. 302 14mm
- Pmc 8 cyl. 305
- Pmc 8 cyl. 307 Tapered Seat
- Pmc 8 cyl. 350
- Pmc 8 cyl. 350 EFI
- Pmc 8 cyl. 351 14mm
- Pmc 8 cyl. 454
- Pmc 8 cyl. 460 14mm
- Starbuck Boats 8 cyl. 350 Chevrolet
- U.S. Marine 350K 8 cyl. 5.7L
- U.S. Marine 454 8 cyl. 7.5L
- Volvo Penta 175
- Volvo Penta 175A
- Volvo Penta 190 Ford
- Volvo Penta 190A Ford
- Volvo Penta 200
- Volvo Penta 205A
- Volvo Penta 211/DP
- Volvo Penta 211A
- Volvo Penta 225
- Volvo Penta 225D 305
- Volvo Penta 225E
- Volvo Penta 231/DP
- Volvo Penta 231A
- Volvo Penta 240A Ford
- Volvo Penta 255B
- Volvo Penta 260
- Volvo Penta 261
- Volvo Penta 271/DP
- Volvo Penta 271A
- Volvo Penta 280A
- Volvo Penta 290
- Volvo Penta 311 8 cyl.
- Volvo Penta 430 8 cyl.
- Volvo Penta 500A 8 cyl.
- Volvo Penta 501A 8 cyl.
- Volvo Penta 531 8 cyl.
- Volvo Penta 570A 8 cyl.
- Volvo Penta 571A 8 cyl.
- Volvo Penta 572 8 cyl.
- Volvo Penta 740A 8 cyl.
- Volvo Penta A
- Volvo Penta A 8 cyl.
- Volvo Penta B
- Volvo Penta B 8 cyl.
- Volvo Penta C
- Volvo Penta D
- Volvo Penta DPX 385 8 cyl. 7.4L
- Volvo Penta DPX 415 8 cyl. 8.2L
- Volvo Penta F
- Volvo Penta FL 8 cyl. 5.0L
- Volvo Penta FL 8 cyl. 5.8L
- Volvo Penta FL/HS1 8 cyl. 5.8L
- Volvo Penta Gi 8 cyl. 5.7L
- Volvo Penta Gi 8 cyl. 5.7L 350
- Volvo Penta Gi 8 cyl. 7.4L
- Volvo Penta Gi/HS1 8 cyl. 7.4L
- Volvo Penta GIPNCA 6 cyl. 4.3L .460" Reach
- Volvo Penta GL 8 cyl. 5.7L
- Volvo Penta GL 8 cyl. 5.7L 350
- Volvo Penta GL 8 cyl. 7.4L
- Volvo Penta GL/HS1 8 cyl. 8.2L
- Volvo Penta Gli 8 cyl. 5.7L
- Volvo Penta Gli 8 cyl. 5.7L 350
- Volvo Penta GS 8 cyl. 5.7L
- Volvo Penta GS 8 cyl. 5.7L 350
- Volvo Penta Gsi 8 cyl. 7.4L
- Volvo Penta Gsi 8 cyl. 8.2L
- Volvo Penta PZ-200 I/O 305 Chevrolet
- Yamaha 6 cyl. 4.3L V-6 180 H.P.
- Yamaha 8 cyl. 5.0L V-8 210 H.P.
- Yamaha 8 cyl. 5.7L V-8 240 H.P.
- Yamaha 8 cyl. 7.4L V-8 300 H.P.
- Yamaha L4 3.0L 110 H.P.
- Generators
- GENERAC w/GMC 5.7L & 7.4L Engs.
- KOHLER KT17, KT19, KT21
- Golf Cart
- CUSHMAN Hollister 1985 And Newer
- Outdoor Power Equipment
- CUB CADET 682, 782 Mowers & Riding Equipment
- CUSHMAN Turf-Truckster 22 h.p. Turf Equipment & Utility Vehicles
- CUSHMAN w/22 h.p. 222 Engs. Turf Equipment & Utility Vehicles
- INTERNATIONAL 682, 782 Cub Cadet Riding Equipment
- Manufacturer Heat Range: 15
- Electrical Terminal Type: Non-Removable Nut
- Core Nose Length: 0.852 in.
- Indexed: No
- Center Electrode Diameter: 0.1 in.
- Ground Electrode Material: Nickel Copper Alloy
- Installed Height: 2.28 in.
- Insulator Projection: 0.12 in.
- Taper Diameter: 0.31 in.
- Manufacturer: Champion
- Model Number: RBL15Y
- Part Number: 18
- Also Known As:
- Accel 576
- ACDelco 41-905
- Autolite 25, AR25
- Beru CS1K
- Bosch 0242219516, 0242225573, HR10BC, HR8BC, HR9BP
- Champion RV15YC4, RV15YC4T10
- Denso 5025, 5330, ITF16, ITF16TT, T16PR-U, T16PRU
- Motorcraft ARF42, ASF42CF4
- NGK 1127, BPR4FS, stk 1127
- Splitfire SF2F
- Torch P4RTC