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Parts for MerCruiser 120 GM 153 I / L4 1979-1982 Cylinder Block, Piston & Bearings

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 839-3548 CYLINDER BLOCK ASSEMBLY (1 required per assembly) (Includes standard pistons, piston rings & crankshaft bearings)
ORD 87956A 1      O NLA  
839-3548 ORD 87956A 1 O NLA
(more info)
    UnavailableUnavailable Parts
#2 19-34270 EXPANSION PLUG, (1.625), CYLINDER BLOCK (2 required per assembly)
EXPANSION PLUG (1 19-34270 19-34270
19-34270OEM Part 19-34270 - Freeze Plug, 1-5/8 Inch (more info) About Mercury Marine $6.80 $6.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#2 19-34271 EXPANSION PLUG, (2.00), CYLINDER BLOCK (1 required per assembly)
EXPANSION PLUG (2 19-34271  
19-34271OEM Part 19-34271 - Plug (more info) About Mercury Marine $19.00 $12.82 Add to shopping cart
10+ in stock. Explain stock levels
#- 19-37531 PLUG, OIL CHANNEL - CYLINDER BLOCK (1 required per assembly)
PLUG 19-37531  
19-37531OEM Part 19-37531 - Plug (more info) About Mercury Marine $3.60 $3.60 Add to shopping cart
8 in stock. Explain stock levels
#3 19-34488 PLUG, EXPANSION - CAMSHAFT BEARING HOLE (1 required per assembly)
2272640 19-34488  
19-34488OEM Part 19-34488 - Plug (more info) About Mercury Marine $3.70 $3.70 Add to shopping cart
2 in stock. Explain stock levels
#4 22-34487 PLUG, (.375-18 x .42), PIPE - CYLINDER BLOCK (2 required per assembly)
PLUG              O - Replaced by 22-36373  
19-34487This part has been superseded. PLUG O - Replaced by 22-36373
(more info)
    UnavailableUnavailable Parts
PLUG (.375-18) He 22-36373  
22-36373OEM Part 22-36373 - Plug (more info) About Mercury Marine $4.10 $4.10 Add to shopping cart
4 in stock. Explain stock levels
#5 17-35465 PIN, Dowel (.312), CYLINDER BLOCK TO CYLINDER HEAD (2 required per assembly)
PIN Dowel (.312) 17-35465  
17-35465OEM Part 17-35465 - Pin -Dowel - Priced Individually (more info) About Mercury Marine $4.80 $4.80 Add to shopping cart
2 in stock. Explain stock levels
#6 23-35168 BEARING, DISTRIBUTOR PILOT SHAFT (1 required per assembly)
BEARING           O NLA 23-35168
23-35168 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#7 23-43293 BEARING SET, CAMSHAFT (FRONT, INTERMEDIATE AND REAR) (2 required per assembly)
BEARING           O - Replaced by 23-43293T  
23-43293This part has been superseded. BEARING O - Replaced by 23-43293T
(more info)
    UnavailableUnavailable Parts
BEARING SET 23-43293T 23-43293T
23-43293TOEM Part 23-43293T - Bearing - Std (more info) About Mercury Marine $51.83 $51.83 Add to shopping cart
Available to order:
Usually ships
within 8 days
Cam Bearings 18-1339
18-1339OEM Match 18-1339 - Bearing, 23-43293, Cam (more info) About Sierra Marine $48.49 $48.49 Add to shopping cart
1 in stock. Explain stock levels
#9 736-2343 PISTON ASSEMBLY (.001 O.S.) (AR required per assembly)
PISTON ASSEMBLY 736-2343 736-2343
736-2343OEM Part 736-2343 - Piston & Pin - Std (more info) About Mercury Marine $54.08 $54.08 Add to shopping cart
Available to order:
Usually ships
within 8 days
Piston Kit 18-4180
18-4180OEM Match 18-4180 - Piston, 736-2343 - Special Order - No Returns (more info) About Sierra Marine $69.49 Add to shopping cart
In stock - special order item. Explain stock levels
#9 733-2279 PISTON ASSEMBLY (.030 O.S.) (AR required per assembly)
PISTON & PIN-.030,NLA 733-2279 733-2279
733-2279OEM Part 733-2279 - Piston & Pin -.030, NLA (more info) About Mercury Marine $50.00 $50.00 Add to shopping cart
10+ in stock. Explain stock levels
#10 39-67132 RING, PISTON (STANDARD) (4 required per assembly)
RING 39-67132 39-67132
39-67132OEM Part 39-67132 - Piston Ring - Std (more info) About Mercury Marine $43.58 $43.58 Add to shopping cart
9 in stock. Explain stock levels
Piston Rings 18-3942
18-3942 18-3942 - Rings, 39-67132 - Special Order - No Returns (more info)     UnavailableUnavailable Parts
#10 39-67134 RING, PISTON (.030 O.S.) (AR required per assembly)
PISTON RING-.030,NLA 39-67134 39-67134
39-67134OEM Part 39-67134 - Piston Ring -.030, NLA (more info) About Mercury Marine $44.00 $44.00 Add to shopping cart
10+ in stock. Explain stock levels
#11 23-85675 BEARING, CRANKSHAFT MAIN (STANDARD) (4 required per assembly)
ER 23-818469     ,NLA 23-85675 23-85675
23-85675OEM Part 23-85675 - Er 23-818469 , NLA (more info) About Mercury Marine $22.00 $22.00 Add to shopping cart
10+ in stock. Explain stock levels
#11 23-85676 BEARING, CRANKSHAFT MAIN (.001 U.S.) (AR required per assembly)
23818470 23-85676  
23-85676OEM Part 23-85676 - Ord 23-818470 (more info) About Mercury Marine $12.50 $12.50 Add to shopping cart
8 in stock. Explain stock levels
#11 23-85713 BEARING, CRANKSHAFT MAIN (.010 U.S.) (AR required per assembly)
23818471 23-85713  
23-85713OEM Part 23-85713 - Ord 23-818471 (more info) About Mercury Marine $22.88 $22.88 Add to shopping cart
5 in stock. Explain stock levels
#11 23-85714 BEARING, CRANKSHAFT MAIN (.020 U.S.) (AR required per assembly)
ORD 23-818472     O NLA  
23-85714 ORD 23-818472 O NLA
(more info)
    UnavailableUnavailable Parts
#12 23-85715 BEARING, CRANKSHAFT MAIN - REAR (STANDARD) (1 required per assembly)
23818469 23-85715 23-85715
23-85715OEM Part 23-85715 - Bearing (more info) About Mercury Marine $25.00 $25.00 Add to shopping cart
10+ in stock. Explain stock levels
BEARING SET-STD   O - Replaced by 23-818469001  
23-818469This part has been superseded. BEARING SET-STD O - Replaced by 23-818469001
(more info)
    UnavailableUnavailable Parts
BEARING SET 23-818469001 23-818469001
23-818469001OEM Part 23-818469001 - Bearing Set - Std (more info) About Mercury Marine $147.08 $147.08 Add to shopping cart
1 in stock. Explain stock levels
Std. Main Bearings 18-1317
18-1317OEM Match 18-1317 - Bearing, 23-818469 (more info) About Sierra Marine $178.49 $135.45 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 23-85670 BEARING, CRANKSHAFT MAIN - REAR (.001 U.S.) (AR required per assembly)
BEARING           O - Replaced by 23-818470  
23-85670This part has been superseded. BEARING O - Replaced by 23-818470
(more info)
    UnavailableUnavailable Parts
BEARING SET       O - Replaced by 23-818470001 23-818470
23-818470This part has been superseded. BEARING SET O - Replaced by 23-818470001
(more info)
    UnavailableUnavailable Parts
BEARING SET 23-818470001  
23-818470001OEM Part 23-818470001 - Bearing Set (more info) About Mercury Marine $147.67 $147.67 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 23-85671 BEARING, CRANKSHAFT MAIN - REAR (.002 U.S.) (AR required per assembly)
BEARING           O NLA  
23-85671 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#12 23-85718 BEARING, CRANKSHAFT MAIN - REAR (.010 U.S.) (AR required per assembly)
BEARING           O - Replaced by 23-818471  
23-85718This part has been superseded. BEARING O - Replaced by 23-818471
(more info)
    UnavailableUnavailable Parts
BEARING SET-.010  O - Replaced by 23-818471001 23-818471
23-818471This part has been superseded. BEARING SET-.010 O - Replaced by 23-818471001
(more info)
    UnavailableUnavailable Parts
BEARING SET-.010 23-818471001 23-818471001
23-818471001OEM Part 23-818471001 - Bearing Set -.010 (more info) About Mercury Marine $143.42 $143.42 Add to shopping cart
Available to order:
Usually ships
within 8 days
.010 Main Bearings 18-1316
18-1316OEM Match 18-1316 - Main Bearing, 23-818471 (more info) About Sierra Marine $153.99 $153.99 Add to shopping cart
Available to order:
Usually ships
within 8 days
#12 23-85719 BEARING, CRANKSHAFT MAIN - REAR (.020 U.S.) (AR required per assembly)
BEARING           O - Replaced by 23-818472  
23-85719This part has been superseded. BEARING O - Replaced by 23-818472
(more info)
    UnavailableUnavailable Parts
BEARING SET 23-818472 23-818472
23-818472OEM Part 23-818472 - Bearing Set -.020 (more info) About Mercury Marine $126.83 $126.83 Add to shopping cart
Available to order:
Usually ships
within 8 days
#-- 15-34533 SHIM, BEARING CAP - FRONT AND INTERMEDIATE (AR required per assembly)
SHIM,NLA 15-34533  
15-34533OEM Part 15-34533 - Shim, NLA (more info) About Mercury Marine $15.00 $15.00 Add to shopping cart
2 in stock. Explain stock levels
#-- 15-34534 SHIM, BEARING CAP - REAR (AR required per assembly)
NLA               O NLA  
15-34534 NLA O NLA
(more info)
    UnavailableUnavailable Parts
#15 10-46717 BOLT, (2 31/32 In.), BEARING CAP TO BLOCK (10 required per assembly)
NLA               O NLA  
10-46717 NLA O NLA
(more info)
    UnavailableUnavailable Parts
#17 26-58203 SEAL, Oil, CRANKSHAFT REAR BEARING (1 required per assembly)
OIL SEAL          O - Replaced by 26-814622 26-58203
26-58203This part has been superseded. OIL SEAL O - Replaced by 26-814622
(more info)
    UnavailableUnavailable Parts
SEAL Oil 26-814622 26-814622
26-814622OEM Part 26-814622 - Seal (more info) About Mercury Marine $96.17 $96.17 Add to shopping cart
Available to order:
Usually ships
within 8 days
Rear Main Seal 18-1211
18-1211OEM Match 18-1211 - Seal, 26-814622 (more info)
Replaces OEM #0473424
About Sierra Marine $58.99 $47.54 Add to shopping cart
1 in stock. Explain stock levels
#-- 34543 VALVE, BY-PASS - OIL FILTER (AR required per assembly)
VALVE 34543 34543
34543OEM Part 34543 - Valve (more info) About Mercury Marine $12.80 $12.80 Add to shopping cart
Available to order:
Usually ships
within 8 days
#18 22-64425 FITTING, EXTENSION - CYLINDER BLOCK (OPT required per assembly)
FITTING,NLA 22-64425  
22-64425OEM Part 22-64425 - Fitting, NLA (more info) About Mercury Marine $30.00 $30.00 Add to shopping cart
10+ in stock. Explain stock levels
#19 22-87238 FITTING, DRAIN - CYLINDER BLOCK (1 required per assembly)
DRAIN COCK        O - Replaced by 22-16951A 1  
22-87238This part has been superseded. DRAIN COCK O - Replaced by 22-16951A 1
(more info)
    UnavailableUnavailable Parts
2216951Q1 22-16951A 1 22-16951A 1
22-16951A 1OEM Part 22-16951A 1 - Drain Plug Kit (more info) About Mercury Marine $7.00 $7.00 Add to shopping cart
2 in stock. Explain stock levels
PLUG-DRAIN Note: must be ordered in multiples of 2 22-16951Q 1 22-16951Q 1
22-16951Q 1OEM Part 22-16951Q 1 - Drain Plug - Priced Individually (more info) About Mercury Marine $10.60 $10.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
Cyl. Block Drain Tap 18-4218
18-4218OEM Match 18-4218 - Drain 22-16951A1 (more info)
Replaces OEM #0379957
About Sierra Marine $9.99 $7.54 Add to shopping cart
10+ in stock. Explain stock levels
PLUG-DRAIN Note: must be ordered in multiples of 2   22 16951T 1 22-16951T 1
22-16951T 1OEM Part 22-16951T 1 - Drain Plug - Priced Individually (more info) About Mercury Marine $10.60 $10.60 Add to shopping cart
Available to order:
Usually ships
within 8 days
#- 85381A 1 PARTIAL ENGINE (1 required per assembly) (Includes internal parts plus head) SN# 5192049 THRU 5514733
PARTIAL ENGINE    O - Replaced by -87956A 1  
85381A 1This part has been superseded. PARTIAL ENGINE O - Replaced by -87956A 1
(more info)
    UnavailableUnavailable Parts
LONGBLOCK MARINE  O - Replaced by -87956R 1  
87956A 1This part has been superseded. LONGBLOCK MARINE O - Replaced by -87956R 1
(more info)
    UnavailableUnavailable Parts
RM MARINE LONGBLK O NLA  
87956R 1 RM MARINE LONGBLK O NLA
(more info)
    UnavailableUnavailable Parts
#- 87956A 1 PARTIAL ENGINE (1 required per assembly) (Includes internal parts plus head) SN# 5514734 & Up