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Parts for Mercury Marine Model 400 40 HP (2 Cylinder) Crankshaft, Piston & Connecting Rod Assembly

Ref. No. Part No. Description Manufacturer List Price Your Price Order
#1 444-3875A 2 CRANKSHAFT ASSEMBLY (1 required per assembly)
CRANKSHAFT,NLA 444-3875A 2  
444-3875A 2OEM Part 444-3875A 2 - Crankshaft, NLA (more info) About Mercury Marine $200.00 $200.00 Add to shopping cart
2 in stock. Explain stock levels
#2 30-32117 BALL BEARING, CRANKSHAFT (UPPER) (1 required per assembly)
BALL BEARING      O - Replaced by 30-62567  
30-32117This part has been superseded. BALL BEARING O - Replaced by 30-62567
(more info)
    UnavailableUnavailable Parts
BALL BEARING      O - Replaced by 30-62567T 30-62567
30-62567This part has been superseded. BALL BEARING O - Replaced by 30-62567T
(more info)
    UnavailableUnavailable Parts
BALL BEARING 30-62567T 30-62567T
30-62567TOEM Part 30-62567T - Ball Bearing (more info) About Mercury Marine $88.00 $88.00 Add to shopping cart
Available to order:
Usually ships
within 8 days
#3 540-3943A 1 MAIN BEARING ASSEMBLY, VALVE TYPE (1 required per assembly)
5407238A2 540-3943A 1  
540-3943A 1OEM Part 540-3943A 1 - Main Bearing (more info) About Mercury Marine $125.00 $125.00 Add to shopping cart
1 in stock. Explain stock levels
REED BLOCK ASSY   O NLA 540-7238A 2
540-7238A 2 REED BLOCK ASSY O NLA
(more info)
    UnavailableUnavailable Parts
#4 17-20032 DOWEL PIN, MAIN BEARING (2 required per assembly)
PIN Dowel 17-20032  
17-20032OEM Part 17-20032 - Pin -Dowel - Priced Individually (more info) About Mercury Marine $2.90 $2.90 Add to shopping cart
10+ in stock. Explain stock levels
#5 10-45775 SCREW, MAIN BEARING CLAMPING (2 required per assembly)
SCREW,NLA 10-45775  
10-45775OEM Part 10-45775 - Screw, NLA (more info) About Mercury Marine $3.00 $3.00 Add to shopping cart
10+ in stock. Explain stock levels
#6 11-45774 NUT, MAIN BEARING CLAMPING SCREW (2 required per assembly)
NUT Note: must be ordered in multiples of 5 11-45774  
11-45774OEM Part 11-45774 - Nut - Priced Individually (more info) About Mercury Marine $15.30 $15.30 Add to shopping cart
10+ in stock. Explain stock levels
#7 34-56007A 1 REED SET, MAIN BEARING (MATCHED) (1 required per assembly)
REED SET 34-56007A 1 34-56007A 1
34-56007A 1OEM Part 34-56007A 1 - Reed Kit (more info) About Mercury Marine $77.83 $77.83 Add to shopping cart
10+ in stock. Explain stock levels
#8 34-56008 REED STOP, MAIN BEARING REED VALVES (4 required per assembly)
STOP Reed 34-56008 34-56008
34-56008OEM Part 34-56008 - Reed Stop (more info) About Mercury Marine $22.33 $5.36 Add to shopping cart
10+ in stock. Explain stock levels
#9 10-20055 SCREW, REED STOP MOUNTING (12 required per assembly)
SCREW,NLA 10-20055  
10-20055OEM Part 10-20055 - Screw, NLA (more info) About Mercury Marine $2.00 $2.00 Add to shopping cart
10+ in stock. Explain stock levels
#10 622-3666A 6 CONNECTING ROD ASSEMBLY (2 required per assembly)
CONNECTING ROD    O - Replaced by 622-3666A10  
622-3666A 6This part has been superseded. CONNECTING ROD O - Replaced by 622-3666A10
(more info)
    UnavailableUnavailable Parts
CONNECTING ROD    O - Replaced by 622-4850A 4  
622-3666A10This part has been superseded. CONNECTING ROD O - Replaced by 622-4850A 4
(more info)
    UnavailableUnavailable Parts
CONNECTING ROD    O - Replaced by 622-4850A 3  
622-4850A 4This part has been superseded. CONNECTING ROD O - Replaced by 622-4850A 3
(more info)
    UnavailableUnavailable Parts
CONNECTING ROD    O - Replaced by 624-8101A 3  
622-4850A 3This part has been superseded. CONNECTING ROD O - Replaced by 624-8101A 3
(more info)
    UnavailableUnavailable Parts
CONNECTING ROD,NLA 624-8101A 3 624-8101A 3
624-8101A 3OEM Part 624-8101A 3 - Connecting Rod, NLA (more info) About Mercury Marine $125.00 $125.00 Add to shopping cart
10+ in stock. Explain stock levels
#11 10-54803 SCREW, CONNECTING ROD (4 required per assembly)
SCREW,NLA 10-54803 10-54803
10-54803OEM Part 10-54803 - Screw, NLA (more info) About Mercury Marine $3.90 $3.90 Add to shopping cart
10+ in stock. Explain stock levels
#12 11-49091 NUT, CONNECTING ROD SCREW (4 required per assembly)
NUT Note: must be ordered in multiples of 10 11-49091 11-49091
11-49091OEM Part 11-49091 - Nut - Priced Individually (more info) About Mercury Marine $2.10 $2.10 Add to shopping cart
10+ in stock. Explain stock levels
#13 31-58859A 1 BEARING ASSEMBLY, CRANKPIN (2 required per assembly)
ROLLER BRG @6     O - Replaced by 31-61424A 2  
31-58859A 1This part has been superseded. ROLLER BRG @6 O - Replaced by 31-61424A 2
(more info)
    UnavailableUnavailable Parts
ROLLER BRG @6     O - Replaced by 31-63075A 1  
31-61424A 2This part has been superseded. ROLLER BRG @6 O - Replaced by 31-63075A 1
(more info)
    UnavailableUnavailable Parts
ROLLER BRG @6     O - Replaced by 31-62596A 1  
31-63075A 1This part has been superseded. ROLLER BRG @6 O - Replaced by 31-62596A 1
(more info)
    UnavailableUnavailable Parts
BEARING ASSEMBLY 31-62596A 1 31-62596A 1
31-62596A 1OEM Part 31-62596A 1 - Connecting Rod Bearings And Cage, Single (more info) About Mercury Marine $149.75 $43.14 Add to shopping cart
10+ in stock. Explain stock levels
Needle Bearing Set (W/O Cag 18-4038
18-4038OEM Match 18-4038 - Needle Bearings, Without Cage, 31-62596A1 (more info) About Sierra Marine $38.15 $30.88 Add to shopping cart
6 in stock. Explain stock levels
#14 29-47270 BEARING, NEEDLE - PISTON PIN (58 required per assembly)
BEARING 29-47270 29-47270
29-47270OEM Part 29-47270 - Needle Bearing - Priced Individually (more info) About Mercury Marine $0.22 $0.22 Add to shopping cart
10+ in stock. Explain stock levels
Needle Bearing 18-4036-9
18-4036-9OEM Match 18-4036-9 - Bearing, 29-47270, 200PK (more info) About Sierra Marine $38.00 $30.62 Add to shopping cart
1 in stock. Explain stock levels
#15 12-47247 WASHER, NEEDLE BEARING RETAINING (4 required per assembly)
128M0032839 12-47247  
12-47247OEM Part 12-47247 - Washer - Priced Individually (more info) About Mercury Marine $5.00 $5.00 Add to shopping cart
6 in stock. Explain stock levels
WASHER Note: must be ordered in multiples of 5 12-8M0032839  
12-8M0032839OEM Part 12-8M0032839 - Washer - Priced Individually (more info) About Mercury Marine $7.90 $7.90 Add to shopping cart
Available to order:
Usually ships
within 8 days
#16 745-4508A 2 PISTON AND PISTON PIN ASSEMBLY (2 required per assembly) SERIAL 00000000-03045259
PISTON            O - Replaced by 745-7672A 3  
745-4508A 2This part has been superseded. PISTON O - Replaced by 745-7672A 3
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 776-8899A 3  
745-7672A 3This part has been superseded. PISTON O - Replaced by 776-8899A 3
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 774-9137A12  
776-8899A 3This part has been superseded. PISTON O - Replaced by 774-9137A12
(more info)
    UnavailableUnavailable Parts
PISTON ASSY-STD 774-9137A12 774-9137A12
774-9137A12OEM Part 774-9137A12 - Piston Assembly -STD (more info) About Mercury Marine $133.50 $133.50 Add to shopping cart
6 in stock. Explain stock levels
#16 745-3560A 2 PISTON AND PISTON PIN ASSEMBLY (2 required per assembly) SERIAL 03045260-09999999
PISTON            O - Replaced by 745-4879A 2  
745-3560A 2This part has been superseded. PISTON O - Replaced by 745-4879A 2
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 745-4972A 2  
745-4879A 2This part has been superseded. PISTON O - Replaced by 745-4972A 2
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 745-5220A 2  
745-4972A 2This part has been superseded. PISTON O - Replaced by 745-5220A 2
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 745-6661A 4  
745-5220A 2This part has been superseded. PISTON O - Replaced by 745-6661A 4
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 745-7671A 3  
745-6661A 4This part has been superseded. PISTON O - Replaced by 745-7671A 3
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 745-7672A 3  
745-7671A 3This part has been superseded. PISTON O - Replaced by 745-7672A 3
(more info)
    UnavailableUnavailable Parts
#17 40-52035 LOCK RING, PISTON PIN (4 required per assembly)
53857196 40-52035 40-52035
40-52035OEM Part 40-52035 - Lock Ring - Priced Individually (more info) About Mercury Marine $1.25 $1.25 Add to shopping cart
10+ in stock. Explain stock levels
LOCK RING 53-857196 53-857196
53-857196OEM Part 53-857196 - Lock Ring - Priced Individually (more info) About Mercury Marine $2.30 $1.56 Add to shopping cart
2 in stock. Explain stock levels
Circlips (2/PKG) 18-4294-9
18-4294-9OEM Match 18-4294-9 - Clips, PK2 (more info) About Sierra Marine $4.98 $3.49 Add to shopping cart
1 in stock. Explain stock levels
#18 39-45155A12 RING, PISTON (1 required per assembly)
PISTON RING ASSY  O - Replaced by 39-78816A12  
39-45155A12This part has been superseded. PISTON RING ASSY O - Replaced by 39-78816A12
(more info)
    UnavailableUnavailable Parts
RING SET-12 PCS 39-78816A12 39-78816A12
39-78816A12OEM Part 39-78816A12 - Rings - 12 Pcs (more info) About Mercury Marine $145.25 $145.25 Add to shopping cart
4 in stock. Explain stock levels
Piston Ring 18-3902
18-3902OEM Match 18-3902 - Rings, 39-78816A12, 3 Rings Only (more info) About Sierra Marine $35.99 $29.86 Add to shopping cart
9 in stock. Explain stock levels
#- 745-4513A 1 PISTON AND PISTON PIN ASSEMBLY(.015 OVERSIZE) (2 required per assembly) SERIAL 00000000-03045259
PISTON            O NLA  
745-4513A 1 PISTON O NLA
(more info)
    UnavailableUnavailable Parts
#- 745-3778A 1 PISTON AND PISTON PIN ASSEMBLY(.015 OVERSIZE) (2 required per assembly) SERIAL 03045260-09999999
PISTON            O - Replaced by 745-4912A 1  
745-3778A 1This part has been superseded. PISTON O - Replaced by 745-4912A 1
(more info)
    UnavailableUnavailable Parts
7454982A1 745-4912A 1  
745-4912A 1OEM Part 745-4912A 1 - Piston (more info) About Mercury Marine $99.00 $99.00 Add to shopping cart
1 in stock. Explain stock levels
PISTON            O - Replaced by 745-5306A 2  
745-4982A 1This part has been superseded. PISTON O - Replaced by 745-5306A 2
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 745-6696A 2  
745-5306A 2This part has been superseded. PISTON O - Replaced by 745-6696A 2
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 745-7673A 2  
745-6696A 2This part has been superseded. PISTON O - Replaced by 745-7673A 2
(more info)
    UnavailableUnavailable Parts
PISTON            O - Replaced by 776-8900A 2  
745-7673A 2This part has been superseded. PISTON O - Replaced by 776-8900A 2
(more info)
    UnavailableUnavailable Parts
7749137A13 776-8900A 2  
776-8900A 2OEM Part 776-8900A 2 - Piston (more info) About Mercury Marine $99.85 $99.85 Add to shopping cart
1 in stock. Explain stock levels
PISTON ASSY-.015 774-9137A13 774-9137A13
774-9137A13OEM Part 774-9137A13 - Piston Assembly -.015 (more info) About Mercury Marine $137.58 $137.58 Add to shopping cart
7 in stock. Explain stock levels
#- 39-45204A12 RING, PISTON (.015 OVERSIZE) (1 required per assembly)
3978811A12 39-45204A12 39-45204A12
39-45204A12OEM Part 39-45204A12 - Piston Ring Assembly (more info) About Mercury Marine $45.00 $45.00 Add to shopping cart
3 in stock. Explain stock levels
RING SET Piston - 39-78811A12 39-78811A12
39-78811A12OEM Part 39-78811A12 - Rings - 12 Pcs (more info) About Mercury Marine $67.42 $45.31 Add to shopping cart
10+ in stock. Explain stock levels
Piston Rings .015IN Os (4) 18-3916
18-3916OEM Match 18-3916 - Rings .015 oversize , 3 Rings Only (more info) About Sierra Marine $26.99 $21.41 Add to shopping cart
Available to order:
Usually ships
within 8 days