Parts for 120 GM 153 I / L4 2.5L (153 Cu In) L4 GM MerCruiser Engines - Gas Cylinder Head & Rocker Cover (120-2.5L / 153 Cid)
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 65635A16 | COVER ROCKER (1 required per assembly) — Replaces: 65635A8 |
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65635A16 - Rocker Cover, NLA [ More info ] Unavailable |
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| #2 | 807152 | CAP (1 required per assembly) — Replaces: 75336 |
| #3 | 57638T | BAFFLE ROCKER COVER OLD DESIGN (1 required per assembly) — Replaces: 57638 |
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57638T - BAFFLE,NLA [ More info ] Unavailable |
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| #4 | 62568 | SCREW (#10-16 X .375) BAFFLE TO ROCKER COVER OLD DESIGN (4 required per assembly) |
| #5 | 77253 | DECAL WAVES OLD DESIGN (1 required per assembly) |
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37-77253 - DECAL,NLA [ More info ] Unavailable |
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| #6 | 17345 | CAP-OIL FILLER OLD DESIGN (1 required per assembly) — Replaces: 49288 |
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17345 - Oil Filler Cap [ More info ] Unavailable |
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| #7 | 77246 | DECAL ROCKER COVER (120) (1 required per assembly) |
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37-77246 - DECAL,NLA [ More info ] Unavailable |
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| #7 | 121151 | DECAL ROCKER COVER (120 ALPHA ONE) (1 required per assembly) |
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37-12115 1 - DECAL,NLA [ More info ] Unavailable |
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| #7 | 121154 | DECAL ROCKER COVER (2.5 LITRE) (1 required per assembly) |
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37-12115 4 - DECAL,NLA [ More info ] Unavailable |
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| #8 | 65746 | SCREW W/LW @2 (5 required per assembly) |
| #10 | 97224 | J CLIP INLET HOSE - ROCKER COVER SCREW (3 required per assembly) |
| #11 | 851040 | GASKET ROCKER COVER TO CYLINDER HEAD (1 required per assembly) — Replaces: 52145, 806452 |
| #12 | 547971 | KEY VALVE STEM (2 PER VALVE) (16 required per assembly) — Replaces: 54797 |
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28-54797 1 - Valve Stem Keeper Key - Priced Individually [ More info ] |
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| #13 | FI1100604 | CAP VALVE STEM (8 required per assembly) — Replaces: 34515 |
| #14 | 34217 | SEAL VALVE SPRING CAP (8 required per assembly) |
| #15 | 34518001 | SHIELD VALVE SPRING CAP (8 required per assembly) — Replaces: 34518 |
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34518001 - SHIELD NLA [ More info ] Unavailable |
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| #16 | 35214 | SPRING VALVE (8 required per assembly) |
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24-35214 - Spring, Value [ More info ] Unavailable |
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| #17 | 34516 | NUT ROCKER VALVE ARM STUD (8 required per assembly) |
| #18 | 59340 | BALL ROCKER ARM ROCKER VALVE ARM STUD (8 required per assembly) |
| #19 | 34519 | ARM KIT ROCKER VALVE (8 required per assembly) |
| #20 | 8M0188299 | CYL HEAD-COMPLETE (1 required per assembly) — Replaces: 5319, 8M0115134 |
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8M0188299 - CYL HEAD-COMPLETE [ More info ] Unavailable |
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| #21 | 34521 | STUD VLAVE ROCKER ARM (.013 O.S.) (AR required per assembly) |
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16-34521 - Stud [ More info ] Unavailable |
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| #21 | 34522 | STUD VALVE ROCKER ARM (.003 O.S.) (AR required per assembly) |
| #22 | 34510 | BOLT CYLINDER HEAD TO CYLINDER BLOCK (10 required per assembly) |
| #23 | 342731 | GASKET CYLINDER HEAD TO CYLINDER BLOCK (1 required per assembly) — Replaces: 34273 |
| #24 | 8M0187688 | PUSH ROD PUSH - VALVE (8 required per assembly) — Replaces: 34532 |
| #25 | 62421 | VALVE INLET (STANDARD STEM) (4 required per assembly) |
| #25 | 62422 | VALVE INLET (.015 O.S. SYSTEM) (AR required per assembly) |
| #26 | 85803 | VALVE EXHAUST (STANDARD STEM) (4 required per assembly) |
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85803 - Exhaust Valve, NLA [ More info ] Unavailable |
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| #26 | 49076 | VALVE EXHAUST (.015 O.S. SYSTEM) (AR required per assembly) |
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49076 - Valve, NLA [ More info ] Unavailable |
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| #27 | 67850 | LIFTING EYE CYLINDER HEAD (1 required per assembly) |
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67850 - Bracket, NLA [ More info ] Unavailable |
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| #28 | 54528 | SCREW LIFTING EYE ATTACHING (2 required per assembly) |
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10-54528 - Screw [ More info ] Unavailable |
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| #29 | 96430 | SHOULDER SCREW SHOULDER - CABLE ATTACHING (1 required per assembly) |





