Parts for MerCruiser Race Engine and Drive 525 SC GM 454 V-8 1991-1992 Crankshaft & Pistons & Conn. Rods
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 798-817114 | PISTON ASSEMBLY (STANDARD) (8 required per assembly) |
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798-817114 - PISTON ASSEMBLY O NLA [ More info ] Unavailable |
| #2 | 39-67127 | RING KIT-Piston (STANDARD) (8 required per assembly) |
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39-67127 - Rings - Standard [ More info ]
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18-3940 - Rings, 39-67927 [ More info ]
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| #1 | 798-817114A 1 | PISTON ASSEMBLY (.030 O.S.) (8 required per assembly) |
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798-817114A 1 - 798-817114A 1 - PISTON ASSEMBLY O [ More info ] Unavailable Replaced by 798-817114T 1 |
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798-817114T 1 - PISTON ASY-.030OS O NLA [ More info ] Unavailable |
| #2 | 39-848350030 | RING KIT-Piston (.030 O.S.) (1 required per assembly) |
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39-848350030 - Rings [ More info ]
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| #3 | 23-818473 | BEARING SET (STANDARD) (1 required per assembly) |
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23-818473 - 23-818473 - BEARING SET Main O [ More info ] Unavailable Replaced by 23-818473001 |
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23-818473001 - Bearing Set - Std [ More info ]
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18-1315 - Main Bearing, 23-818473 [ More info ]
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| #3 | 23-818474 | BEARING SET (.001 U.S.) (AR required per assembly) |
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23-818474 - Bearing Set - .001 Us [ More info ]
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| #3 | 23-818475 | BEARING SET (.002 U.S.) (AR required per assembly) |
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23-818475 - Bearing Set - .002 Us [ More info ]
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| #3 | 23-818476 | BEARING SET (.010 U.S.) (AR required per assembly) |
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23-818476 - 23-818476 - BEARING SET Main O [ More info ] Unavailable Replaced by 23-818476001 |
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23-818476001 - Bearing Set - .010 Us [ More info ]
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| #3 | 23-818477 | BEARING SET (.020 U.S.) (AR required per assembly) |
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23-818477 - Bearing Set - .020 Us [ More info ]
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18-1314 - .020 Main Bearings - Special Order - No Returns [ More info ]
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| #4 | 17-35312 | PIN-Dowel (.250 Dia.) (1 required per assembly) |
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17-35312 - 17-35312 - PIN Dowel (1/4 In O [ More info ] Unavailable Replaced by 17-843378 |
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17-843378 - Pin -Dowel [ More info ]
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| #5 | 26-14756 | SEAL-Oil (1 required per assembly) (S/N: 0D456000 - 0D725808) |
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268M0062773 - Seal [ More info ]
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| #5 | 26-811554 | SEAL-Oil (1 required per assembly) (S/N: 0D763746 - 0F348963) |
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26-811554 - Seal [ More info ]
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18-1234 - Seal, 26-811554, 3853528 [ More info ]
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| #6 | 230-6540 | FLYWHEEL (1 required per assembly) (S/N: 0D456000 - 0D725808) |
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230-6540 - 230-6540 - FLYWHEEL O [ More info ] Unavailable Replaced by 200-8M0084209 |
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200-8M0084209 - FLYWHEEL O NLA [ More info ] Unavailable |
| #6 | 230-811561 | FLYWHEEL (1 required per assembly) (S/N: 0D763746 - 0F348963) |
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230-811561 - 230-811561 - FLYWHEEL O [ More info ] Unavailable Replaced by 230-843374T 1 |
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230-843374T 1 - Flywheel [ More info ]
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| #7 | 230-811563 | FLYWHEEL (1 required per assembly) (GEN V DRIVELINE OR TRANSMISSION MODELS) |
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230-811563 - 230-811563 - FLYWHEEL O [ More info ] Unavailable Replaced by 230-811563 1 |
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230-811563 1 - Flywheel [ More info ]
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| #7 | 230-5534 | FLYWHEEL (1 required per assembly) (MARK IV DRIVELINE OR TRANSMISSION MODELS) |
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230-5534 - FLYWHEEL O NLA [ More info ] Unavailable |
| #8 | 10-49845 | SCREW (.437-20 x 1.00) (6 required per assembly) |
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10-49845 - Screw [ More info ]
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10-845757 - Screw [ More info ]
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| #9 | 18311A17 | COUPLING ASSEMBLY-Engine (1 required per assembly) (BRAVO MODELS ONLY) |
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18311A17 - 18311A17 - COUPLER ASSEMBLY O [ More info ] Unavailable Replaced by -861523A 9 |
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861523A 9 - 861523A 9 - COUPLER ASSEMBLY O [ More info ] Unavailable Replaced by -8M0098795 |
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8M0098795 - Coupler Assembly [ More info ]
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18-2412 - Coupler, Bravo [ More info ]
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| #10 | 10-14883 | SCREW (.375-16 x 1.125) (6 required per assembly) |
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10-14883 - Screw [ More info ]
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| #11 | 12-20572 | WASHER (6 required per assembly) |
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12-20572 - Washer [ More info ]
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| #NS | 22-49099 | FITTING-Grease (2 required per assembly) |
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22-49099 - Fitting [ More info ]
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| #12 | 614-9641 | CONNECTING ROD ASSEMBLY (8 required per assembly) |
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614-9641 - 614-9641 - CONNECTING ROD AS O [ More info ] Unavailable Replaced by 614-9641T |
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614-9641T - 614-9641T - CONNECTING ROD AS O [ More info ] Unavailable Replaced by 614-8M0084554 |
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6148M0084554 - Connecting Rod Assembly [ More info ]
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| #13 | 10-19234 | BOLT-Conn Rod Cap (16 required per assembly) |
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10-19234 - Screw [ More info ]
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| #14 | 11-37493 | NUT-Conn Rod Cap Bolt (16 required per assembly) |
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| #15 | 23-85726 | BEARING SET (STANDARD) (8 required per assembly) |
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23-85726 - Bearing Set - Std [ More info ]
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23-85726001 - Bearing Set - Std [ More info ]
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18-1334 - Rod Bearing, 23-85726 [ More info ]
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| #15 | 23-85727 | BEARING SET (.001 U.S.) (AR required per assembly) |
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23-85727 - Bearing Set - .001 Us [ More info ]
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| #15 | 23-85728 | BEARING SET (.002 U.S.) (AR required per assembly) |
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23-85728 - Bearing Set - .002 Us, NLA [ More info ]
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| #15 | 23-85691 | BEARING SET (.010 U.S.) (AR required per assembly) |
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23-85691 - Bearing Set - .010 Us [ More info ]
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18-1333 - Rod Bearing, 23-85691 - Special Order - No Returns [ More info ]
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| #15 | 23-85729 | BEARING SET (.020 U.S.) (AR required per assembly) |
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23-85729 - Bearing Set - .020 Us [ More info ]
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| #16 | 429-5880 | CRANKSHAFT (1 required per assembly) (S/N: 0D456000 - 0D725808) |
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429-5880 - CRANKSHAFT O NLA [ More info ] Unavailable |
| #16 | 429-811552 | CRANKSHAFT (1 required per assembly) (S/N: 0D763746 - 0F348963) |
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429-811552 - CrankShaft [ More info ]
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| #17 | 28-811558 | KEY-Crankshaft (2 required per assembly) (S/N: 0D456000 - 0D725808) |
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28-811558 - 28-811558 - KEY O [ More info ] Unavailable Replaced by 28-845607 |
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| #17 | 28-34466 | KEY-Crankshaft (2 required per assembly) (S/N: 0D763746 - 0F348963) |
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| #18 | 816618 | DRIVE PLATE (1 required per assembly) (TRANSMISSION MODELS) |
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816618 - 816618 - DRIVEPLATE ASSEMB O [ More info ] Unavailable Replaced by -8M0051206 |
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8M0051206 - DrivePlate [ More info ]
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| #19 | 10-35091 | SCREW (.375-16 x 1.00) (6 required per assembly) (TRANSMISSION MODELS) |
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10-35091 - Screw - Priced Individually [ More info ]
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| #20 | 13-35048 | LOCKWASHER (.375) (6 required per assembly) (TRANSMISSION MODELS) |
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13-35048 - LockWasher - Priced Individually [ More info ]
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| #21 | 23-49126 | BUSHING-Pilot-Crankshaft (1 required per assembly) (DRIVELINE MODELS ONLY) |
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23-49126 - Bearing [ More info ]
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| #22 | 25-811528 | O RING (#5 Bearing Cap Oil Hole) (1 required per assembly) (S/N: 0D763746 - 0F348963) |
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25-811528 - 25-811528 - O-RING (.500 Inch O [ More info ] Unavailable Replaced by 25-69756 |
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25-69756 - O-Ring [ More info ]
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| #- | 27-817118A90 | Gasket Set (- required per assembly) |
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27-817118A90 - GASKET SET O NLA [ More info ] Unavailable |
| #- | 27-827014A92 | Gasket Set (- required per assembly) |
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27-827014A92 - 27-827014A92 - GASKET SET O [ More info ] Unavailable Replaced by 27-827014A98 |
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27-827014A98 - GASKET SET O NLA [ More info ] Unavailable |
