Parts for MerCruiser 120 GM 153 I / L4 1979-1982 Cylinder Head / Rocker Cover, Oil Pan, Pump & Crankcase

Revise Search: All Models > 120 GM 153 I / L4 1979-1982 > 5192049 - 6229717 > Cylinder Head / Rocker Cover, Oil Pan, Pump & Crankcase

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View diagram and parts list below. Tap to zoom. Scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

Engine section

Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
Each product listed is an OEM or aftermarket equivalent part. [ Example ]

#	27-34460	GASKET, OIL PUMP COVER (1 required per assembly)
		27-34460 - Oil Pump Gasket [ More info ] Unavailable
#	60717	SUPPORT, OIL PUMP (1 required per assembly)
		60717 - Bracket, NLA [ More info ] Unavailable
#1	65635	COVER ASSEMBLY, ROCKER (1 required per assembly)
		65635 - Rocker Cover Assembly [ More info ] Unavailable
		65635A 5 - Cover Assembly [ More info ] Unavailable
		65635A 8 - ROCKER COVER [ More info ] Unavailable
		65635A16 - Rocker Cover, NLA [ More info ] Unavailable
#2A	37-77246	DECAL, ROCKER COVER (1 required per assembly)
		37-77246 - DECAL,NLA [ More info ] Unavailable
#3	10-35585	SCREW, (.75 In.), ROCKER COVER TO CYLINDER HEAD (1 required per assembly)
		10-35585 - Screw - Priced Individually [ More info ] Unavailable
		10-98510 - Screw [ More info ] $0.73 10 In Stock.
		10-65746 - Screw w/ Lw - Priced Individually [ More info ] $1.10 Available to Order: Usually ships within 10 days.
#3	10-38627	SCREW, (5/8 Inch), ROCKER COVER TO CYLINDER HEAD (4 required per assembly)
		10-38627 - Screw - Priced Individually [ More info ] $0.39 6 In Stock.
		10-98511 - Screw [ More info ] $0.45 1 In Stock.
		10-98254 - Screw [ More info ] $0.60 Available to Order: Usually ships within 10 days.
#4	25-52188	GROMMET, ROCKER COVER (1 required per assembly)
		25-52188 - Grommet, Rocker Cover To Vent Hose Connector [ More info ] $9.99 2 In Stock.
		23-8M0071559 - Grommet [ More info ] $8.20 4 In Stock.
#5	47957	CONNECTOR, VENT HOSE (1 required per assembly)
		47957 - Vent Hose Connector, NLA [ More info ] Unavailable
#6	54-64648	CLAMP, VENT HOSE TO CONNECTOR (1 required per assembly)
		54-64648 - Clamp [ More info ] $1.67 3 In Stock.
#7	57638	BAFFLE, ROCKER COVER (1 required per assembly)
		57638 - Baffle [ More info ] Unavailable
		57638T - BAFFLE,NLA [ More info ] Unavailable
#8	10-62568	SCREW, (#10-16 x .375), BAFFLE TO ROCKER COVER (4 required per assembly)
		10-62568 - Screw - Priced Individually [ More info ] $1.10 10+ In Stock.
#9	12-20583	WASHER, ROCKER COVER (1 required per assembly)
		12-20583 - Washer - Priced Individually [ More info ] $1.40 10+ In Stock.
#10	54-49542	CLAMP, INLET HOSE - ROCKER COVER SCREW (1 required per assembly)
		54-49542 - Clamp [ More info ] $1.00 10+ In Stock.
#12	37-77253	DECAL, WAVES (1 required per assembly)
		37-77253 - DECAL,NLA [ More info ] Unavailable
#13	49288	CAP ASSEMBLY, Oil Filler, ROCKER COVER (1 required per assembly)
		49288 - Cap [ More info ] Unavailable
		17345 - Oil Filler Cap [ More info ] $27.78 2 In Stock.
#14	27-52145	GASKET, ROCKER COVER TO CYLINDER HEAD (1 required per assembly)
		27-52145 - Rocker Cover To Cylinder Head Gasket [ More info ] Unavailable
		27-806452 - Valve Cover Gasket [ More info ] Unavailable
		27-851040 - Rocker Cover Gasket [ More info ] $40.36 2 In Stock.
		18-0347 - Gasket 27-806452 [ More info ] $16.99 $16.63 10+ In Stock.
#15	28-54797	KEY, VALVE STEM (2 PER VALVE) (16 required per assembly)
		28-54797 - Key - Priced Individually [ More info ] $1.00 1 In Stock.
		28-54797 1 - Key - Priced Individually [ More info ] $16.40 10+ In Stock.
#16	34515	CAP, VALVE STEM (8 required per assembly)
		34515 - CAP [ More info ] $1.47 4 In Stock.
		FI1100604 - Cap [ More info ] $20.08 Available to Order: Usually ships within 10 days.
#17	26-34217	SEAL, VALVE SPRING CAP (8 required per assembly)
		26-34217 - Seal - Priced Individually [ More info ] $6.00 $2.64 10+ In Stock.
		18-0518 - Seal, 26-34217 [ More info ] $4.99 Available to Order: Usually ships within 10 days.
#18	34518	SHIELD, VALVE SPRING CAP (8 required per assembly)
		34518 - Shield [ More info ] Unavailable
		34518001 - SHIELD NLA [ More info ] Unavailable
#19	24-35214	SPRING, VALVE (8 required per assembly)
		24-35214 - Spring, Value [ More info ] Unavailable
#20	11-34516	NUT, ROCKER VALVE ARM STUD (8 required per assembly)
		11-34516 - Nut - Priced Individually [ More info ] $19.90 $16.92 5 In Stock.
#21	59340	BALL, Rocker Arm, ROCKER VALVE ARM STUD (8 required per assembly)
		59340 - Ball [ More info ] $3.80 10+ In Stock.
#22	34519	ARM KIT, ROCKER VALVE (8 required per assembly)
		34519 - Rocker Valve Arm [ More info ] $63.50 Available to Order: Usually ships within 10 days.
#23	936-5319	CYLINDER HEAD ASSEMBLY (TAPERED SPARK PLUG SEATS) (1 required per assembly)
		936-5319 - Cylinder Head,NLA [ More info ] Unavailable
#24	16-34521	STUD, VALVE ROCKER ARM (.013 O.S.) (AR required per assembly)
		16-34521 - Stud [ More info ] Unavailable
#24	16-34522	STUD, VALVE ROCKER ARM (.003 O.S.) (AR required per assembly)
		16-34522 - Stud [ More info ] $14.50 2 In Stock.
#25	19-34272	PLUG, Core - EXPANSION - CYLINDER HEAD (15/16" DIA.) (2 required per assembly)
		19-34272 - Plug [ More info ] $6.66 10+ In Stock.
#26	10-34510	BOLT, CYLINDER HEAD TO CYLINDER BLOCK (10 required per assembly)
		10-34510 - Bolt [ More info ] $19.30 Available to Order: Usually ships within 10 days.
#27	27-34273	GASKET, CYLINDER HEAD TO CYLINDER BLOCK (1 required per assembly)
		27-34273 - Cylinder Head To Cylinder Block Gasket [ More info ] Unavailable
		27-34273 1 - Gasket [ More info ] $108.92 Available to Order: Usually ships within 10 days.
#28	34532	PUSH ROD, VALVE (8 required per assembly)
		34532 - Push Rod [ More info ] Unavailable
#29	62421	VALVE, INLET (STANDARD STEM) (4 required per assembly)
		62421 - Inlet Valve, NLA [ More info ] $29.99 10+ In Stock.
#29	62422	VALVE, INLET (.015 O.S. STEM) (AR required per assembly)
		62422 - Valve, NLA [ More info ] $6.00 10+ In Stock.
#30	85803	VALVE, EXHAUST (STANDARD STEM) (4 required per assembly)
		85803 - Exhaust Valve, NLA [ More info ] Unavailable
#30	49076	VALVE, EXHAUST (.015 O.S. STEM) (AR required per assembly)
		49076 - Valve, NLA [ More info ] $11.25 4 In Stock.
#31	839-3548	CYLINDER BLOCK ASSEMBLY (See 'Cylinder Block, Piston & Bearings' Page for breakdown) (1 required per assembly)
		839-3548 - Ord 87956A, NLA [ More info ] Unavailable
#32	45490	GAUGE, OIL LEVEL (DIP STICK) (1 required per assembly)
		45490 - Oil Lever Gauge [ More info ] Unavailable
		861942T 1 - Oil Level Gauge [ More info ] $38.58 $32.79 3 In Stock.
#33	87717A 1	TUBE, OIL LEVEL GAUGE (1 required per assembly)
		87717A 1 - TUBE ASSY [ More info ] Unavailable
		87717A 2 - Tube Assembly [ More info ] $73.83 Available to Order: Usually ships within 10 days.
#34	39332A 1	COVER ASSEMBLY, PUSH ROD (1 required per assembly)
		39332A 1 - Cover Assembly, NLA [ More info ] Unavailable
#35	10-39783	SCREW, PUSH ROD COVER TO CYLINDER BLOCK (4 required per assembly)
		10-39783 - Screw - Priced Individually [ More info ] Unavailable
		10-35765A 1 - Screw Kit [ More info ] $1.50 Available to Order: Usually ships within 10 days.
#36	27-34208	GASKET, PUSH ROD COVER (1 required per assembly)
		27-34208 - Push Rod Cover Gasket [ More info ] $9.99 1 In Stock.
		18-0328-9 - Gasket 27-34208 2-Pack [ More info ] $31.99 $29.05 Available to Order: Usually ships within 10 days.
#37	36405	PUMP ASSEMBLY, Oil (1 required per assembly)
		36405 - Oil Pump Assembly [ More info ] $91.92 Available to Order: Usually ships within 10 days.
#38	10-35339	SCREW, (.312-18 x .750), OIL PUMP TO CYLINDER BLOCK (2 required per assembly)
		10-35339 - Screw [ More info ] $1.90 6 In Stock.
		10-845942 - Screw [ More info ] Unavailable
		10-8M0043993 - Screw [ More info ] $1.60 Available to Order: Usually ships within 10 days.
#39	10-35366	SCREW, (.250-20 x .563), OIL PUMP SCREEN TO MOUNTING BRACKET (1 required per assembly)
		10-35366 - Screw - Priced Individually [ More info ] $18.88 10+ In Stock.
		10-8M0040582 - Dipstick Tube MT Screw - Priced Individually [ More info ] $15.10 Available to Order: Usually ships within 10 days.
#40	52146	SCREEN, OIL PUMP (1 required per assembly)
		52146 - Oil Pump Screen [ More info ] $139.75 Available to Order: Usually ships within 10 days.
#41	32720	CONNECTOR, OIL FILTER TO CYLINDER BLOCK (1 required per assembly)
		32720 - Connector [ More info ] $6.67 8 In Stock.
		22-805632 - Connector [ More info ] $33.11 2 In Stock.
#42	54111	FILTER ASSEMBLY, Oil (1 required per assembly)
		54111 - Oil Filter [ More info ] Unavailable
		14957 - Oil Filter [ More info ] Unavailable
		35-802885Q - FILTER-OIL [ More info ] Unavailable
		35-866340Q02 - FILTER-OIL [ More info ] Unavailable
		35-866340Q03 - Oil Filter - Priced Individually [ More info ] $13.70 10+ In Stock.
		35-866340K01 - Oil Filter [ More info ] $13.70 10+ In Stock.
		18-7876-1 - Oil Filter - GM/Chevy Long [ More info ] $10.99 $9.69 10+ In Stock.
		35-57811 - Oil Filter, Long [ More info ] $11.99 10+ In Stock.
		35-57801 - Oil Filter, Standard Length Canister [ More info ] $10.69 10+ In Stock.
#43	59341	COVER ASSEMBLY, CRANKCASE (1 required per assembly)
		59341 - COVER [ More info ] Unavailable
		59341A 1 - Timing Cover [ More info ] Unavailable
		8M0137024 - Cover [ More info ] Unavailable
		18-1213 - Timing Cover Seal, 26-97335, 3853341 [ More info ] $35.99 $32.87 2 In Stock.
#44	26-79223	SEAL, Oil, CRANKCASE COVER (1 required per assembly)
		26-79223 - Oil Seal - Priced Individually [ More info ] Unavailable
		26-97335 - Seal [ More info ] $44.55 10+ In Stock.
#45	27-49953	GASKET, CRANKCASE COVER (1 required per assembly)
		27-49953 - Crankcase Cover Gasket [ More info ] $4.10 2 In Stock.
		18-0887 - Gasket, 27-49953 [ More info ] $6.10 $5.64 1 In Stock.
#46	10-34277	BOLT, (1/4-20 x 7/8), CRANKCASE COVER TO CYLINDER BLOCK (8 required per assembly)
		10-34277 - Screw - Priced Individually [ More info ] Unavailable
#47	52583A 1	PAN ASSEMBLY, Oil (1 required per assembly)
		52583A 1 - PAN ASSY-OIL,NLA [ More info ] Unavailable
#48	27-52144	GASKET SET, OIL PAN (1 required per assembly)
		27-52144 - Oil Pan Gasket Set [ More info ] Unavailable
		27-14901 - Gasket [ More info ] Unavailable
		27-14901A 1 - Oil Pan Gasket Set [ More info ] Unavailable
#49	10-49950	SCREW, (0.25), OIL PAN TO CYLINDER BLOCK (14 required per assembly)
		10-49950 - Screw , Priced Individually [ More info ] $0.61 6 In Stock.
		10-72607 - Screw [ More info ] $2.70 Available to Order: Usually ships within 10 days.
#50	10-34500	SCREW, (.312-18 x .625), OIL PAN TO CYLINDER BLOCK (4 required per assembly)
		10-34500 - Screw - Priced Individually [ More info ] $17.00 $3.41 10+ In Stock.
#51	10-49956	SCREW, Drain, OIL PAN (1 required per assembly)
		10-49956 - Screw [ More info ] $22.69 6 In Stock.
#52	27-49955	GASKET, OIL PAN DRAIN SCREW (1 required per assembly)
		27-49955 - Oil Pump Drain Gasket [ More info ] Unavailable
		278M0077608 - Gasket [ More info ] $15.20 Available to Order: Usually ships within 10 days.
		18-0905-9 - Oil Pan Drain Gasket, 2 Pack, 27-49955 [ More info ] $5.99 $4.91 3 In Stock.