Head & Rocker Arm Group 120 Hp Parts for 1978 OMC Stern Drive 120hp 990243D Stern Drive
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
#1 — 980502 — VALVE COVER. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
0980502 - Valve Cover [ More info ] Unavailable |
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NLA [ More info ] Unavailable |
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#2 — 311210 — GASKET, CYLINDER HEAD. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
#3 — 982241 — CYLINDER HEAD. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
0982241 [ More info ] Unavailable Replaced by 0986767 |
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0986767 - Cylinder Head [ More info ] Unavailable |
#4 — 311378 — CORE PLUG. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (2 required per assembly) | ||
#5 — 3814692 — STUD, 0003 O S (0 required per assembly) | ||
[ More info ] Unavailable |
#5 — 3815892 — STUD, 0013 O S (0 required per assembly) | ||
[ More info ] Unavailable |
#6 — 311543 — GROMMET. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
#7 — 311545 — ELBOW. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
#10 — 3788417 — BOLT, HEAD TO CRANKCASE (10 required per assembly) | ||
[ More info ] Unavailable |
#11 — 3788495 — PUSH ROD (8 required per assembly) | ||
[ More info ] Unavailable |
#14 — 180016 — SCREW (5 required per assembly) | ||
0180016 - - [ More info ] Unavailable |
#15 — 979826 — SPARK PLUUG, AC MRT43T. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (4 required per assembly) | ||
0979826 - Spark Plug MR43T [ More info ] Unavailable |
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0763819 - Spark Plug MR43T [ More info ] Unavailable |
#15 — 979827 — SPARK PLUG, CHAMPION RBL-8. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (4 required per assembly) | ||
0979827 [ More info ] Unavailable Replaced by 0916476 |
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0916476 [ More info ] Unavailable Replaced by 3854400 |
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3854400 - Spark Plug RV15YC4 [ More info ] Unavailable |
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#16 — 3835333 — SEAL (8 required per assembly) | ||
[ More info ] Unavailable |
#17 — 3947770 — KEY (16 required per assembly) | ||
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CUM3947770 - PLATE,COVER [ More info ] Unavailable |
#18 — 3729363 — CAP (8 required per assembly) | ||
[ More info ] Unavailable |
#19 — 3836755 — SHIELD (8 required per assembly) | ||
VOL3836755 - NLA BALL [ More info ] Unavailable |
#20 — 3735381 — VALVE SPRING AND DAMPER (8 required per assembly) | ||
[ More info ] Unavailable |
#21 — 5723551 — ARM, VALVE ROCKER (8 required per assembly) | ||
[ More info ] Unavailable |
#23 — 3744341 — NUT, CONED, 3/8-24 (1 required per assembly) | ||
[ More info ] Unavailable |
#25 — 311415 — SCREW, CLAMP CYLINDER HEAD, STARBOARD. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (2 required per assembly) | ||
#26 — 310928 — CLAMP, CYLINDER HEAD, STARBOARD. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (2 required per assembly) | ||
#28 — 907852 — CLAMP, FUEL LINE BRACKET. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
0907852 [ More info ] Unavailable Replaced by 3852427 |
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#29 — 316659 — NUT, SCREW. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
0316659 - Nut [ More info ] Unavailable |
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#30 — 312889 — SCREW, CLAMP. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
0312889 - Screw [ More info ] Unavailable |
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#31 — 908605 — BRACKET, CLAMP. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
0908605 - Bracket [ More info ] Unavailable |
#32 — 311111 — LIFT BRACKET. PARTS AVAILABLE FROM LOCAL CHEVROLET DEALERS (1 required per assembly) | ||
0311111 - Lift Bracket [ More info ] Unavailable |