MerCruiser 7.4L 454/502 V8 Electrical System
SEE REFERENCE PICTURE BELOW!
see picture below
| MerCruiser 7.4L 454/502 V8 Electrical System | ||
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MerCruiser 7.4L 454/502 V8 Electrical System SEE REFERENCE PICTURE BELOW! |
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| Reference Number see picture below |
Type | OE # | Part# | Click here to view product, price, or |
| 1 | Distributor cap only, thunderbolt | 805759T 1 | 64759 | |
| 2 | Distributor cap and rotor kit, thunderbolt | 805759Q 3 | 64759k | |
| 3 | Sensor, thunderbolt | 87-861780A 2 | 18-5115 | |
| 4 | Ignition wire set, thunderbolt | 84-816761Q 4 | 9-28002 | |
| 5 | Spark plug | 33-59571 | BR6FS | |
| 6 | Ignition coil | 392-806529A 1 | 64529 | |
| 7 | Mando Alternator 55 amp V Pulley 2 wire conn | 817119A 4 | 3144M | |
| 7 | Mando Alternator 65 amp V Pulley 2 wire conn | 805447T / 805884T | 3159M | |
| 7 | Mando Alternator 65 amp Serp Pulley, can be interchanged with 3204M | 807653T | 3146M | |
| 7 | Delco Alternator 70 amp 50mm Serp pulley; all 496 8.1L models | 863077T | 20815 | |
| 7 | Alternator assembly, 65mm pulley Delco 12V 70amp | 862031T 1 | 3204M | |
| 7 | Alternator 61 amp V 2 wire Conn | 78403A 2 | 3186M | |
| 7 | Alternator 61 amp V 1 wire | 78403A 1 | 3147M | |
| 8 | Solenoid | 89-96158T | 5817 | |
| Not shown | Solenoid | 89-68258A 4 | 5815 | |
| 9 | PMGR Starter assembly | 50-806964A 4 / 50-864340A 2 | 5399M | |
| 9 | PMGR Starter assembly, 1999 and up MPI models, high torque 1.6KW | - | 5398MHT | |
| Not shown | PMGR Starter, top rear mount for inboard and skit models | 50-808011A4 | 5400ML | |
| 10 | Bolt kit, 2 long | - | MBK450 | |
| 11 | Distributor cap and rotor kit, DELCO EST | 808483Q 1 | 64483K | |
| 12 | Ignition module, 4 cyl V6 and V8 Delco EST | 850487 / 811637 | 63348 | |
| 13 | Pickup coil sensor, Delco EST | 811639T | 63350 | |
| 14 | Ignitiong wire set, delco HEI | 84-816608Q82 | 9-28011 | |
| 15 | Spark plug, Long Reach | 3-816336 | BPR6EFS | |
| 16 | Ignition coil, Delco HEI | 817378 | 63756 | |
| 17 | Alternator assembly, Delco 12 V 70 amp 50,, Serpentine pulley | 863077T | 20815 | |
| 18 | Oil pressure sender | 815425T | 65899 | |
| 19 | Temp sender, 3/8" NPT | 97257A 1 | 64257 | |
| 19 | Temp sender 1/2 NPT | - | 64258 | |
| 20 | Temp sender | 805218T | 63752 | |
| 21 | V8 vortec cap and rotor kit | 884792 & 884790 | 63091 | |
| 22 | Spark plug AC platinum | 33-884019 | 41-932 | |
| 23 | Ignition Module, thunderbolt | 15248A 1 | 75230 | |
| Not shown | Coil wire only, thunderbolt ignition | - | 9-28100 | |
| Not shown | Coil wire only, Delco ignition | - | 9-28101 | |
| Not shown | Full size starter assemble, for PMGR equvialent order 5399M | 50-12177A2 | 5323M | |
| Not shown | Rotor and wheel, thunderbolt | - | 64524 | |
| Not shown | AC spark plug | - | MR43LTS | |
| Not shown | Full size starter, CCW , top rear mounted | 50-76965A 3 | 5275ML | |
| Not shown | Full size starter, CW , for RH rotation engine | 50-79604A 3 / 50-97499A 2 | 5275M | |
