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Parts for MerCruiser 165 GM 250 I / L6 1970-1978 Cylinder Block, Piston & Bearings

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 840-3504 CYLINDER BLOCK ASSEMBLY (1 required per assembly) SERIAL 00000000-04160999
CYLINDER BLOCK    O - Replaced by 840-6515  
840-3504This part has been superseded. CYLINDER BLOCK O - Replaced by 840-6515
(more info)
    UnavailableUnavailable Parts
CYLINDER BLOCK    O NLA  
840-6515 CYLINDER BLOCK O NLA
(more info)
    UnavailableUnavailable Parts
#1 840-5947 CYLINDER BLOCK ASSEMBLY (1 required per assembly) SERIAL 04161000-04331786
CYLINDER BLOCK    O - Replaced by 840-6515  
840-5947This part has been superseded. CYLINDER BLOCK O - Replaced by 840-6515
(more info)
    UnavailableUnavailable Parts
#1 840-6515 CYLINDER BLOCK ASSEMBLY (1 required per assembly) SERIAL 04609544-09999999
#2 17-35465 PIN, DOWEL-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
#3 19-34270 PLUG, EXPANSION-CYLINDER BLOCK (1 5/8" DIA.) (3 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
#3 19-34271 PLUG, EXPANSION-CYLINDER BLOCK (2" DIA.) (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
#3 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
#4 19-34488 PLUG, EXPANSION-CAMSHAFT BEARING HOLE (1 required per assembly) SERIAL 00000000-02963667
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 19-61747 PLUG, EXPANSION-CAMSHAFT HOLE (1 required per assembly) SERIAL 02963668-09999999
PLUG              O - Replaced by 19-34488  
19-61747This part has been superseded. PLUG O - Replaced by 19-34488
(more info)
    UnavailableUnavailable Parts
#5 19-34487 PLUG, PIPE-CYLINDER BLOCK (3/8") (1 required per assembly) SERIAL 00000000-03354701
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
#6 22-36382 PLUG, WATER DRAIN-CYLINDER BLOCK (1 required per assembly) SERIAL 00000000-03354701
FITTING (.250-18 22-36382 22-36382
22-36382OEM Part 22-36382 - Plug (more info) About Mercury Marine $3.90 $3.90 Add to shopping cart
2 in stock. Explain stock levels
Pipe Plug 18-8111-9
18-8111-9OEM Match 18-8111-9 - Pipe Plug (PK3) (more info) About Sierra Marine $10.77 $7.50 Add to shopping cart
10+ in stock. Explain stock levels
#7 23-35168 BEARING, DISTRIBUTOR PILOT SHAFT (1 required per assembly)
BEARING           O NLA 23-35168
23-35168 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#8 734-3458 PISTON AND PISTON PIN ASSEMBLY (.001 O.S.) (AR required per assembly) USE STANDARD PISTON RING SERIAL 00000000-03212085
POWER CARB KIT,NLA 1397-3458  
1397-3458OEM Part 1397-3458 - Power Carb Kit, NLA (more info) About Mercury Marine $46.00 $46.00 Add to shopping cart
5 in stock. Explain stock levels
Carb Kit 18-7071
18-7071OEM Match 18-7071 - Carburetor Kit 1397-3458 (more info)
Replaces OEM #0380186
About Sierra Marine $61.72 $49.08 Add to shopping cart
Available to order:
Usually ships
within 8 days
#8 734-3159 PISTON AND PISTON PIN ASSEMBLY (.020 O.S.) (AR required per assembly) SERIAL 00000000-03212085
NLA               O NLA  
734-3159 NLA O NLA
(more info)
    UnavailableUnavailable Parts
#8 734-3160 PISTON AND PISTON PIN ASSEMBLY (.030 O.S.) (AR required per assembly) SERIAL 00000000-03212085
NLA               O NLA  
734-3160 NLA O NLA
(more info)
    UnavailableUnavailable Parts
#8 734-4858 PISTON AND PISTON PIN ASSENBLY(.001 O.S.) (AR required per assembly) USE STANDARD PISTON RING SERIAL 03212086-09999999
PISTON-STD          NLA  
734-4858 PISTON-STD NLA
(more info)
    UnavailableUnavailable Parts
#8 734-4860 PISTON AND PISTON PIN ASSEMBLY (.030 O.S.) (AR required per assembly) SERIAL 03212086-09999999
PISTON-.030,NLA 734-4860 734-4860
734-4860OEM Part 734-4860 - Piston - .030, NLA (more info) About Mercury Marine $40.00 $40.00 Add to shopping cart
10+ in stock. Explain stock levels
#9 39-67132 RING, PISTON(STANDARD) (6 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
#9 39-67133 RING, PISTON (020 O.S.) (AR required per assembly) SERIAL 00000000-03212085
PISTON RING @2    O NLA  
39-67133 PISTON RING @2 O NLA
(more info)
    UnavailableUnavailable Parts
#9 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
#10&1 BEARING, CAMSHAFT (SEE M/C SERVICE BULLETIN 83-19) (1 required per assembly)
GROMMET           O  
GROMMET O
(more info)
    UnavailableUnavailable Parts
#12 23-49959 BEARING UNIT, CRANKSHAFT MAIN (STANDARD) (6 required per assembly) SERIAL 00000000-04331786
BEARING           O - Replaced by 23-52256  
23-49959This part has been superseded. BEARING O - Replaced by 23-52256
(more info)
    UnavailableUnavailable Parts
2385675    BEARING UNIT 23-52256  
23-52256OEM Part 23-52256 - Bearing Unit (more info) About Mercury Marine $7.50 $7.50 Add to shopping cart
6 in stock. Explain stock levels
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
#12 23-49960 BEARING UNIT, CRANKSHAFT MAIN (.001 U.S.) (AR required per assembly) SERIAL 00000000-04331786
BEARING           O - Replaced by 23-52257  
23-49960This part has been superseded. BEARING O - Replaced by 23-52257
(more info)
    UnavailableUnavailable Parts
BEARING UNIT      O - Replaced by 23-85676  
23-52257This part has been superseded. BEARING UNIT O - Replaced by 23-85676
(more info)
    UnavailableUnavailable Parts
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
#12 23-49961 BEARING UNIT, CRANKSHAFT MAIN (.002 U.S.) (AR required per assembly) SERIAL 00000000-04331786
BEARING           O - Replaced by 23-52258  
23-49961This part has been superseded. BEARING O - Replaced by 23-52258
(more info)
    UnavailableUnavailable Parts
NLA               O NLA  
23-52258 NLA O NLA
(more info)
    UnavailableUnavailable Parts
#12 23-49962 BEARING UNIT, CRANKSHAFT MAIN (.010 U.S.) (AR required per assembly) SERIAL 00000000-04331786
BEARING           O - Replaced by 23-85692  
23-49962This part has been superseded. BEARING O - Replaced by 23-85692
(more info)
    UnavailableUnavailable Parts
BEARING           O - Replaced by 23-85713  
23-85692This part has been superseded. BEARING O - Replaced by 23-85713
(more info)
    UnavailableUnavailable Parts
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
#12 23-49963 BEARING UNTI, CRANKSHAFT MAIN (.020 U.S.) (AR required per assembly) SERIAL 00000000-04331786
BEARING           O - Replaced by 23-85693  
23-49963This part has been superseded. BEARING O - Replaced by 23-85693
(more info)
    UnavailableUnavailable Parts
BEARING           O - Replaced by 23-85714  
23-85693This part has been superseded. BEARING O - Replaced by 23-85714
(more info)
    UnavailableUnavailable Parts
ORD 23-818472     O NLA  
23-85714 ORD 23-818472 O NLA
(more info)
    UnavailableUnavailable Parts
#12 23-52256 BEARING UNIT, CRANKSHAFT MAIN (STANDARD) (6 required per assembly) SERIAL 04331787-09999999
#12 23-52257 BEARING UNIT, CRANKSHAFT MAIN (.010 U.S.) (AR required per assembly) SERIAL 04331787-09999999
#12 23-52258 BEARING UNIT, CRANKSHAFT MAIN (.002 U.S.) (AR required per assembly) SERIAL 04331787-09999999
#12 23-52259 BEARING UNIT, CRANKSHAFT MAIN (.010 U.S.S) (AR required per assembly) SERIAL 04331787-09999999
BEARING UNIT      O - Replaced by 23-85713  
23-52259This part has been superseded. BEARING UNIT O - Replaced by 23-85713
(more info)
    UnavailableUnavailable Parts
#12 23-52260 BEARING UNIT, CRANKSHAFT MAIN (.020 U.S.) (AR required per assembly) SERIAL 04331787-09999999
BEARING UNIT      O - Replaced by 23-85714  
23-52260This part has been superseded. BEARING UNIT O - Replaced by 23-85714
(more info)
    UnavailableUnavailable Parts
#13 23-52261 BEARING UNIT, CRANKSHAFT MAIN-REAR (STANDARD) (AR required per assembly) SERIAL 00000000-03212085
BEARING UNIT      O - Replaced by 23-85715  
23-52261This part has been superseded. BEARING UNIT O - Replaced by 23-85715
(more info)
    UnavailableUnavailable Parts
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
#13 23-52262 BEARING UNIT, CRANKSHAFT MAIN-REAR (.001 U.S.) (AR required per assembly) SERIAL 00000000-03212085
BEARING UNIT      O - Replaced by 23-85670  
23-52262This part has been superseded. BEARING UNIT O - Replaced by 23-85670
(more info)
    UnavailableUnavailable Parts
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
#13 23-52263 BEARING UNIT, CRANKSHAFT MAIN-REAR (.002 U.S.) (AR required per assembly) SERIAL 00000000-03212085
BEARING UNIT      O - Replaced by 23-85671  
23-52263This part has been superseded. BEARING UNIT O - Replaced by 23-85671
(more info)
    UnavailableUnavailable Parts
BEARING           O NLA  
23-85671 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#13 23-52264 BEARING UNIT, CRANKSHAFT MAIN-REAR (.010 U.S.) (AR required per assembly) SERIAL 00000000-03212085
BEARING UNIT      O - Replaced by 23-85718  
23-52264This part has been superseded. BEARING UNIT O - Replaced by 23-85718
(more info)
    UnavailableUnavailable Parts
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
#13 23-52265 BEARING UNIT, CRANKSHAFT MAIN-REAR (.020 U.S.) (AR required per assembly) SERIAL 00000000-03212085
BEARING UNIT      O - Replaced by 23-85719  
23-52265This part has been superseded. BEARING UNIT O - Replaced by 23-85719
(more info)
    UnavailableUnavailable Parts
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
#13 23-34464 BEARING UNIT, CRANKSHAFT MAIN-REAR (STANDARD) (AR required per assembly) SERIAL 03212086-04331786
2385669 23-34464  
23-34464OEM Part 23-34464 - Bearing (more info) About Mercury Marine $11.10 $11.10 Add to shopping cart
1 in stock. Explain stock levels
NLA               O - Replaced by 23-818469  
23-85669This part has been superseded. NLA O - Replaced by 23-818469
(more info)
    UnavailableUnavailable Parts
#13 23-34490 BEARING UNIT, CRANKSHAFT MAIN-REAR (.001 U.S.) (AR required per assembly) SERIAL 03212086-04331786
BEARING           O - Replaced by 23-85670  
23-34490This part has been superseded. BEARING O - Replaced by 23-85670
(more info)
    UnavailableUnavailable Parts
#13 23-34491 BEARING UNIT, CRANKSHAFT MAIN-REAR (.002 U.S.) (AR required per assembly) SERIAL 03212086-04331786
BEARING           O - Replaced by 23-85671  
23-34491This part has been superseded. BEARING O - Replaced by 23-85671
(more info)
    UnavailableUnavailable Parts
#13 23-34492 BEARING UNIT, CRANKSHAFT MAIN-REAR (.010 U.S.) (AR required per assembly) SERIAL 03212086-04331786
2385672 23-34492  
23-34492OEM Part 23-34492 - Bearing (more info) About Mercury Marine $11.10 $11.10 Add to shopping cart
1 in stock. Explain stock levels
BEARING,NLA 23-85672  
23-85672OEM Part 23-85672 - Bearing, NLA (more info) About Mercury Marine $32.00 $32.00 Add to shopping cart
2 in stock. Explain stock levels
#13 23-34493 BEARING UNIT, CRANKSHAFT MAIN-REAR (.020 U.S.S) (AR required per assembly) SERIAL 03212086-04331786
BEARING           O - Replaced by 23-85673  
23-34493This part has been superseded. BEARING O - Replaced by 23-85673
(more info)
    UnavailableUnavailable Parts
BEARING           O NLA  
23-85673 BEARING O NLA
(more info)
    UnavailableUnavailable Parts
#14 49954 CAP, REAR-CRANKSHAFT BEARING (1 required per assembly)
GM# 3928975       O NLA  
49954 GM# 3928975 O NLA
(more info)
    UnavailableUnavailable Parts
#15 35310 CAP, INTERMEDIATE AND FRONT-CRANKSHAFT BEARIGN (6 required per assembly)
NLA               O NLA  
35310 NLA O NLA
(more info)
    UnavailableUnavailable Parts
Owners manual  Manual 205666 Owners Manual - 1966; 40; 40662, 40663, 40672, 40673; Evinrude OUTBOARDS $24.95 $24.95 Add to shopping cart
#15 15-34533 SHIM UNIT, BEARING CAP-FRONT ANS 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 15-34534 SHIM UNIT, BEARING CAP-REAR (AR required per assembly)
NLA               O NLA  
15-34534 NLA O NLA
(more info)
    UnavailableUnavailable Parts
#16 10-46717 BOLT, CRANKSHAFT BEARING CAP TO CYLINDER BLOCK (13 required per assembly)
NLA               O NLA  
10-46717 NLA O NLA
(more info)
    UnavailableUnavailable Parts
#17 26-58203 OIL SEAL UNIT, 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
#17 34543 VALUE, BY PASS-OIL FILTER (1 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