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

#1 444-3875A 2 CRANKSHAFT ASSEMBLY (1 required per assembly)
CRANKSHAFT,NLA 444-3875A 2
 

About Mercury Marine

OEM Part

444-3875A 2 - CrankShaft, NLA [ More info ]

Add to shopping cart $200.00
2 in stock. Explain stock levels

#2 30-32117 BALL BEARING, CRANKSHAFT (UPPER) (1 required per assembly)
BALL BEARING      O - Replaced by 30-62567
 

This part has been superseded.

30-32117 - BALL BEARING O [ More info ]
Unavailable
Replaced by 30-62567
BEARING Ball      O - Replaced by 30-62567T
30-62567

This part has been superseded.

30-62567 - BEARING Ball O [ More info ]
Unavailable
Replaced by 30-62567T
BALL BEARING 30-62567T
30-62567T

About Mercury Marine

OEM Part

30-62567T - Ball Bearing [ More info ]

Add to shopping cart $90.17
Available to order: Usually ships within 8 days. Explain stock levels

#3 540-3943A 1 MAIN BEARING ASSEMBLY, VALVE TYPE (1 required per assembly)
5407238A2 540-3943A 1
 

About Mercury Marine

OEM Part

540-3943A 1 - Main Bearing [ More info ]

Add to shopping cart $125.00
1 in stock. Explain stock levels

BEARING ASSEMBLY  O NLA
540-7238A 2

About Mercury Marine

OEM Part

BEARING ASSEMBLY O NLA [ More info ]
Unavailable
#4 17-20032 DOWEL PIN, MAIN BEARING (2 required per assembly)
PIN Dowel 17-20032
 

About Mercury Marine

OEM Part

17-20032 - Pin -Dowel - Priced Individually [ More info ]

Add to shopping cart $3.00
10+ in stock. Explain stock levels

#5 10-45775 SCREW, MAIN BEARING CLAMPING (2 required per assembly)
SCREW,NLA 10-45775
 

About Mercury Marine

OEM Part

10-45775 - Screw, NLA [ More info ]

Add to shopping cart $3.00
10+ in stock. Explain stock levels

#6 11-45774 NUT, MAIN BEARING CLAMPING SCREW (2 required per assembly)
NUT 11-45774
 

About Mercury Marine

OEM Part

11-45774 - Nut - Priced Individually [ More info ]

Add to shopping cart $19.00
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

About Mercury Marine

OEM Part

34-56007A 1 - Reed Kit [ More info ]

Add to shopping cart $80.58
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

About Mercury Marine

OEM Part

34-56008 - Reed Stop [ More info ]

Add to shopping cart $22.33 $5.36
10+ in stock. Explain stock levels

#9 10-20055 SCREW, REED STOP MOUNTING (12 required per assembly)
SCREW,NLA 10-20055
 

About Mercury Marine

OEM Part

10-20055 - Screw, NLA [ More info ]

Add to shopping cart $2.50
10+ in stock. Explain stock levels

#10 622-3666A 6 CONNECTING ROD ASSEMBLY (2 required per assembly)
CONNECTING ROD    O - Replaced by 622-3666A10
 

This part has been superseded.

622-3666A 6 - CONNECTING ROD O [ More info ]
Unavailable
Replaced by 622-3666A10
CONNECTING ROD    O - Replaced by 622-4850A 4
 

This part has been superseded.

622-3666A10 - CONNECTING ROD O [ More info ]
Unavailable
Replaced by 622-4850A 4
CONNECTING ROD    O - Replaced by 622-4850A 3
 

This part has been superseded.

622-4850A 4 - CONNECTING ROD O [ More info ]
Unavailable
Replaced by 622-4850A 3
CONNECTING ROD    O - Replaced by 624-8101A 3
 

This part has been superseded.

622-4850A 3 - CONNECTING ROD O [ More info ]
Unavailable
Replaced by 624-8101A 3
CONNECTING ROD,NLA 624-8101A 3
624-8101A 3

About Mercury Marine

OEM Part

624-8101A 3 - Connecting Rod, NLA [ More info ]

Add to shopping cart $140.00
10+ in stock. Explain stock levels

#11 10-54803 SCREW, CONNECTING ROD (4 required per assembly)
SCREW,NLA 10-54803
10-54803

About Mercury Marine

OEM Part

10-54803 - Screw, NLA [ More info ]

Add to shopping cart $4.00
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

About Mercury Marine

OEM Part

11-49091 - Nut - Priced Individually [ More info ]

Add to shopping cart $2.20
Available to order: Usually ships within 8 days. Explain stock levels

#13 31-58859A 1 BEARING ASSEMBLY, CRANKPIN (2 required per assembly)
ROLLER BRG @6     O - Replaced by 31-61424A 2
 

This part has been superseded.

31-58859A 1 - ROLLER BRG @6 O [ More info ]
Unavailable
Replaced by 31-61424A 2
ROLLER BRG @6     O - Replaced by 31-63075A 1
 

This part has been superseded.

31-61424A 2 - ROLLER BRG @6 O [ More info ]
Unavailable
Replaced by 31-63075A 1
ROLLER BRG @6     O - Replaced by 31-62596A 1
 

This part has been superseded.

31-63075A 1 - ROLLER BRG @6 O [ More info ]
Unavailable
Replaced by 31-62596A 1
BEARING ASSEMBLY 31-62596A 1
31-62596A 1

About Mercury Marine

OEM Part

31-62596A 1 - Connecting Rod Bearings And Cage, Single [ More info ]

Add to shopping cart $153.50 $44.21
10+ in stock. Explain stock levels

Needle Bearing Set (W/O Cag
18-4038

About Sierra Marine

OEM Match

18-4038 - Needle Bearings, Without Cage, 31-62596A1 [ More info ]

Add to shopping cart $38.15 $30.88
6 in stock. Explain stock levels

#14 29-47270 BEARING, NEEDLE - PISTON PIN (58 required per assembly)
BEARING 29-47270
29-47270

About Mercury Marine

OEM Part

29-47270 - Needle Bearing - Priced Individually [ More info ]

Add to shopping cart $0.22
10+ in stock. Explain stock levels

Needle Bearing
18-4036

About Sierra Marine

OEM Match

18-4036-9 - Bearing, 29-47270, 200PK [ More info ]

Add to shopping cart $38.00 $30.62
3 in stock. Explain stock levels

#15 12-47247 WASHER, NEEDLE BEARING RETAINING (4 required per assembly)
128M0032839 12-47247
 

About Mercury Marine

OEM Part

12-47247 - Washer - Priced Individually [ More info ]

Add to shopping cart $5.00
4 in stock. Explain stock levels

WASHER Note: must be ordered in multiples of 5 12-8M0032839
 

About Mercury Marine

OEM Part

12-8M0032839 - Washer - Priced Individually [ More info ]

Add to shopping cart $8.10
Available to order: Usually ships within 8 days. Explain stock levels

#16 745-4508A 2 PISTON AND PISTON PIN ASSEMBLY (2 required per assembly) SERIAL 00000000-03045259
PISTON            O - Replaced by 745-7672A 3
 

This part has been superseded.

745-4508A 2 - PISTON O [ More info ]
Unavailable
Replaced by 745-7672A 3
PISTON ASSEMBLY   O - Replaced by 776-8899A 3
 

This part has been superseded.

745-7672A 3 - PISTON ASSEMBLY O [ More info ]
Unavailable
Replaced by 776-8899A 3
PISTON ASSEMBLY   O - Replaced by 774-9137A12
776-8899A 3

This part has been superseded.

776-8899A 3 - PISTON ASSEMBLY O [ More info ]
Unavailable
Replaced by 774-9137A12
PISTON ASSY-STD   O
774-9137A12

About Mercury Marine

OEM Part

PISTON ASSY-STD O [ More info ]
Unavailable
#16 745-3560A 2 PISTON AND PISTON PIN ASSEMBLY (2 required per assembly) SERIAL 03045260-09999999
7454879A2 745-3560A 2
 

About Mercury Marine

OEM Part

745-3560A 2 - Piston [ More info ]

Add to shopping cart $12.90
2 in stock. Explain stock levels

PISTON            O - Replaced by 745-4972A 2
 

This part has been superseded.

745-4879A 2 - PISTON O [ More info ]
Unavailable
Replaced by 745-4972A 2
PISTON            O - Replaced by 745-5220A 2
 

This part has been superseded.

745-4972A 2 - PISTON O [ More info ]
Unavailable
Replaced by 745-5220A 2
PISTON            O - Replaced by 745-6661A 4
 

This part has been superseded.

745-5220A 2 - PISTON O [ More info ]
Unavailable
Replaced by 745-6661A 4
PISTON            O - Replaced by 745-7671A 3
 

This part has been superseded.

745-6661A 4 - PISTON O [ More info ]
Unavailable
Replaced by 745-7671A 3
PISTON            O - Replaced by 745-7672A 3
 

This part has been superseded.

745-7671A 3 - PISTON O [ More info ]
Unavailable
Replaced by 745-7672A 3
#17 40-52035 LOCK RING, PISTON PIN (4 required per assembly)
53857196 40-52035
40-52035

About Mercury Marine

OEM Part

40-52035 - Lock Ring - Priced Individually [ More info ]

Add to shopping cart $1.25
10+ in stock. Explain stock levels

LOCK RING 53-857196
53-857196

About Mercury Marine

OEM Part

53-857196 - Lock Ring - Priced Individually [ More info ]

Add to shopping cart $2.40 $1.62
10+ in stock. Explain stock levels

Circlips (2/PKG)
18-4294

About Sierra Marine

OEM Match

18-4294-9 - Clips, PK2 [ More info ]

Add to shopping cart $4.98 $3.49
2 in stock. Explain stock levels

#18 39-45155A12 RING, PISTON (1 required per assembly)
PISTON RING ASSY  O - Replaced by 39-78816A12
 

This part has been superseded.

39-45155A12 - PISTON RING ASSY O [ More info ]
Unavailable
Replaced by 39-78816A12
RING SET-12 PCS 39-78816A12
39-78816A12

About Mercury Marine

OEM Part

39-78816A12 - Rings - 12 Pcs [ More info ]

Add to shopping cart $148.92
Available to order: Usually ships within 8 days. Explain stock levels

Piston Ring
18-3902

About Sierra Marine

OEM Match

18-3902 - Rings, 39-78816A12, 3 Rings Only [ More info ]

Add to shopping cart $35.99 $29.86
10+ 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
 

About Mercury Marine

OEM Part

PISTON O NLA [ More info ]
Unavailable
#- 745-3778A 1 PISTON AND PISTON PIN ASSEMBLY(.015 OVERSIZE) (2 required per assembly) SERIAL 03045260-09999999
PISTON            O - Replaced by 745-4912A 1
 

This part has been superseded.

745-3778A 1 - PISTON O [ More info ]
Unavailable
Replaced by 745-4912A 1
7454982A1 745-4912A 1
 

About Mercury Marine

OEM Part

745-4912A 1 - Piston [ More info ]

Add to shopping cart $99.00
1 in stock. Explain stock levels

PISTON            O - Replaced by 745-5306A 2
 

This part has been superseded.

745-4982A 1 - PISTON O [ More info ]
Unavailable
Replaced by 745-5306A 2
PISTON            O - Replaced by 745-6696A 2
 

This part has been superseded.

745-5306A 2 - PISTON O [ More info ]
Unavailable
Replaced by 745-6696A 2
PISTON            O - Replaced by 745-7673A 2
 

This part has been superseded.

745-6696A 2 - PISTON O [ More info ]
Unavailable
Replaced by 745-7673A 2
7768900A2 745-7673A 2
 

About Mercury Marine

OEM Part

745-7673A 2 - Piston [ More info ]

Add to shopping cart $82.00
1 in stock. Explain stock levels

7749137A13 776-8900A 2
776-8900A 2

About Mercury Marine

OEM Part

776-8900A 2 - Piston [ More info ]

Add to shopping cart $99.85
1 in stock. Explain stock levels

PISTON ASSY-.015 774-9137A13
774-9137A13

About Mercury Marine

OEM Part

774-9137A13 - Piston Assembly -.015 [ More info ]

Add to shopping cart $118.25
7 in stock. Explain stock levels

#- 39-45204A12 RING, PISTON (.015 OVERSIZE) (1 required per assembly)
3978811A12 39-45204A12
39-45204A12

About Mercury Marine

OEM Part

39-45204A12 - Piston Ring Assembly [ More info ]

Add to shopping cart $45.00
3 in stock. Explain stock levels

RING SET Piston - .015 39-78811A12
39-78811A12

About Mercury Marine

OEM Part

39-78811A12 - Rings - 12 Pcs [ More info ]

Add to shopping cart $69.09 $46.43
10+ in stock. Explain stock levels

Piston Rings .015IN Os (4)
18-3916

About Sierra Marine

OEM Match

18-3916 - Rings .015 oversize , 3 Rings Only [ More info ]

Add to shopping cart $26.99 $21.41
2 in stock. Explain stock levels