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  3. YAMAHA
  4. 1999
  5. YFM350U (BIG BEAR 350 2WD)
  6. CRANKSHAFT PISTON
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Part Finder - YAMAHA - 1999 - YFM350U (BIG BEAR 350 2WD) - CRANKSHAFT PISTON

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Please note: that parts quantities shown on parts diagrams are the quantity of that part that exists on the bike, Not the quantity that we have in stock. Please click on the parts individually to check stock availability, thank you.
Please note: that pricing shown is individual/single per item pricing only unless otherwise indicated in part description.
Ref Part Number Description Part/Desc
231YW-11631-01-Y0PISTON (STD) NLa 5/20201YW-11631-01-Y0PISTON (STD) NLa 5/2020
231YW-11636-01PISTON (0.50MM O/S) NLA 08/211YW-11636-01PISTON (0.50MM O/S) NLA 08/21
231YW-11638-01PISTON (1.00MM O/S)1YW-11638-01PISTON (1.00MM O/S)
Ref Part Number Description Part/Desc
244GB-11610-40PISTON RING SET (1.00MM O/S)4GB-11610-40PISTON RING SET (1.00MM O/S)
244GB-11610-00PISTON RING SET (STD)4GB-11610-00PISTON RING SET (STD)
244GB-11610-20PISTON RING SET (0.50MM O/S)4GB-11610-20PISTON RING SET (0.50MM O/S)
Ref Part Number Description Part, Description # On Img # Cart $ Each Notes
1 1YW-11400-02 CRANKSHAFT ASSY 1YW-11400-02CRANKSHAFT ASSY1 on diagram x1 1123.65
2 1UY-11401-09 CRANK 1 1UY-11401-09CRANK 11 on diagram x1 616.80
3 1YW-11422-02 CRANK 2 1YW-11422-02CRANK 21 on diagram x1 494.90
4 30X-11681-00 PIN, CRANK 1 30X-11681-00PIN, CRANK 11 on diagram x1 61.85
5 93310-633T5 BEARING 93310-633T5BEARING1 on diagram x1 91.00
6 1UY-11651-00 ROD, CONNECTING 1UY-11651-00ROD, CONNECTING1 on diagram x1 125.75
7 90209-33253 WASHER 90209-33253WASHER2 on diagram x2 10.30
8 90387-291R6 COLLAR (1YW) 90387-291R6COLLAR (1YW)1 on diagram x1 46.85
9 99009-28400 CIRCLIP 99009-28400CIRCLIP1 on diagram x1 3.35
10 93306-30630 BEARING (3KW) 93306-30630BEARING (3KW)1 on diagram x1 96.80
11 1YW-11496-00 BOSS, BUFFER 1YW-11496-00BOSS, BUFFER1 on diagram x1 117.05
12 90201-406F4 WASHER, PLATE 90201-406F4WASHER, PLATE1 on diagram x1 21.80
13 90501-22721 SPRING, COMPRESSION 90501-22721SPRING, COMPRESSION6 on diagram x6 4.80
14 93605-10090 PIN, DOWEL 93605-10090PIN, DOWEL3 on diagram x3 4.05
15 3Y1-11531-02 GEAR, BALANCE WEIGHT 3Y1-11531-02GEAR, BALANCE WEIGHT1 on diagram x1 111.55
16 1YW-11565-00 WASHER, BEARING COVER 1YW-11565-00WASHER, BEARING COVER1 on diagram x1 13.75
17 90280-05001 KEY, WOODRUFF 90280-05001KEY, WOODRUFF1 on diagram x1 20.55
18 90101-10568 BOLT 90101-10568BOLT1 on diagram x1 6.95
19 92907-10100 WASHER, SPRING 92907-10100WASHER, SPRING1 on diagram x1 1.50
20 93210-16290 O-RING 93210-16290O-RING1 on diagram x1 9.25
21 90201-10058 WASHER, PLATE 90201-10058WASHER, PLATE1 on diagram x1 12.15
22 90280-05001 KEY, WOODRUFF 90280-05001KEY, WOODRUFF1 on diagram x1 20.55
23 1YW-11631-01-Y0 PISTON (STD) NLa 5/2020 1YW-11631-01-Y0PISTON (STD) NLa 5/20201 on diagram x1 174.25
23 1YW-11636-01 PISTON (0.50MM O/S) NLA 08/21 1YW-11636-01PISTON (0.50MM O/S) NLA 08/211 on diagram x1 174.25
23 1YW-11638-01 PISTON (1.00MM O/S) 1YW-11638-01PISTON (1.00MM O/S)1 on diagram x1 174.25
24 4GB-11610-40 PISTON RING SET (1.00MM O/S) 4GB-11610-40PISTON RING SET (1.00MM O/S)1 on diagram x1 50.15
24 4GB-11610-00 PISTON RING SET (STD) 4GB-11610-00PISTON RING SET (STD)1 on diagram x1 50.15
24 4GB-11610-20 PISTON RING SET (0.50MM O/S) 4GB-11610-20PISTON RING SET (0.50MM O/S)1 on diagram x1 50.15
25 55V-11633-00 PIN, PISTON 55V-11633-00PIN, PISTON1 on diagram x1 33.40
26 93450-19095 CIRCLIP 93450-19095CIRCLIP2 on diagram x2 0.70
27 1UY-11536-01 GEAR, DRIVE 1UY-11536-01GEAR, DRIVE1 on diagram x1 197.20
28 1YW-11454-00 WEIGHT 1 1YW-11454-00WEIGHT 11 on diagram x1 333.30
29 93101-25106 OIL SEAL 93101-25106OIL SEAL1 on diagram x1 15.20
30 93306-20532 BEARING 93306-20532BEARING2 on diagram x2 36.15
31 90387-201R7 COLLAR 90387-201R7COLLAR1 on diagram x1 47.95
32 90282-05034 KEY, STRAIGHT 90282-05034KEY, STRAIGHT1 on diagram x1 2.50
33 90170-16326 NUT 90170-16326NUT1 on diagram x1 10.30
34 90215-16270 WASHER, LOCK 90215-16270WASHER, LOCK1 on diagram x1 12.15

1YW-11400-02 - CRANKSHAFT ASSY

  • Reference

    1

  • Part Number

    1YW-11400-02

  • Description

    CRANKSHAFT ASSY

  • Price

    1123.65

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1UY-11401-09 - CRANK 1

  • Reference

    2

  • Part Number

    1UY-11401-09

  • Description

    CRANK 1

  • Price

    616.80

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1YW-11422-02 - CRANK 2

  • Reference

    3

  • Part Number

    1YW-11422-02

  • Description

    CRANK 2

  • Price

    494.90

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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30X-11681-00 - PIN, CRANK 1

  • Reference

    4

  • Part Number

    30X-11681-00

  • Description

    PIN, CRANK 1

  • Price

    61.85

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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93310-633T5 - BEARING

  • Reference

    5

  • Part Number

    93310-633T5

  • Description

    BEARING

  • Price

    91.00

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1UY-11651-00 - ROD, CONNECTING

  • Reference

    6

  • Part Number

    1UY-11651-00

  • Description

    ROD, CONNECTING

  • Price

    125.75

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90209-33253 - WASHER

  • Reference

    7

  • Part Number

    90209-33253

  • Description

    WASHER

  • Price

    10.30

  • Qty On Diagram

    2

  • Stock in Store

    No Stock

  • Qty In Cart

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90387-291R6 - COLLAR (1YW)

  • Reference

    8

  • Part Number

    90387-291R6

  • Description

    COLLAR (1YW)

  • Price

    46.85

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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99009-28400 - CIRCLIP

  • Reference

    9

  • Part Number

    99009-28400

  • Description

    CIRCLIP

  • Price

    3.35

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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93306-30630 - BEARING (3KW)

  • Reference

    10

  • Part Number

    93306-30630

  • Description

    BEARING (3KW)

  • Price

    96.80

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1YW-11496-00 - BOSS, BUFFER

  • Reference

    11

  • Part Number

    1YW-11496-00

  • Description

    BOSS, BUFFER

  • Price

    117.05

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90201-406F4 - WASHER, PLATE

  • Reference

    12

  • Part Number

    90201-406F4

  • Description

    WASHER, PLATE

  • Price

    21.80

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90501-22721 - SPRING, COMPRESSION

  • Reference

    13

  • Part Number

    90501-22721

  • Description

    SPRING, COMPRESSION

  • Price

    4.80

  • Qty On Diagram

    6

  • Stock in Store

    No Stock

  • Qty In Cart

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93605-10090 - PIN, DOWEL

  • Reference

    14

  • Part Number

    93605-10090

  • Description

    PIN, DOWEL

  • Price

    4.05

  • Qty On Diagram

    3

  • Stock in Store

    No Stock

  • Qty In Cart

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3Y1-11531-02 - GEAR, BALANCE WEIGHT

  • Reference

    15

  • Part Number

    3Y1-11531-02

  • Description

    GEAR, BALANCE WEIGHT

  • Price

    111.55

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1YW-11565-00 - WASHER, BEARING COVER

  • Reference

    16

  • Part Number

    1YW-11565-00

  • Description

    WASHER, BEARING COVER

  • Price

    13.75

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90280-05001 - KEY, WOODRUFF

  • Reference

    17

  • Part Number

    90280-05001

  • Description

    KEY, WOODRUFF

  • Price

    20.55

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90101-10568 - BOLT

  • Reference

    18

  • Part Number

    90101-10568

  • Description

    BOLT

  • Price

    6.95

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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92907-10100 - WASHER, SPRING

  • Reference

    19

  • Part Number

    92907-10100

  • Description

    WASHER, SPRING

  • Price

    1.50

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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93210-16290 - O-RING

  • Reference

    20

  • Part Number

    93210-16290

  • Description

    O-RING

  • Price

    9.25

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90201-10058 - WASHER, PLATE

  • Reference

    21

  • Part Number

    90201-10058

  • Description

    WASHER, PLATE

  • Price

    12.15

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90280-05001 - KEY, WOODRUFF

  • Reference

    22

  • Part Number

    90280-05001

  • Description

    KEY, WOODRUFF

  • Price

    20.55

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1YW-11631-01-Y0 - PISTON (STD) NLa 5/2020

  • Reference

    23

  • Part Number

    1YW-11631-01-Y0

  • Description

    PISTON (STD) NLa 5/2020

  • Price

    174.25

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1YW-11636-01 - PISTON (0.50MM O/S) NLA 08/21

  • Reference

    23

  • Part Number

    1YW-11636-01

  • Description

    PISTON (0.50MM O/S) NLA 08/21

  • Price

    174.25

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1YW-11638-01 - PISTON (1.00MM O/S)

  • Reference

    23

  • Part Number

    1YW-11638-01

  • Description

    PISTON (1.00MM O/S)

  • Price

    174.25

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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4GB-11610-40 - PISTON RING SET (1.00MM O/S)

  • Reference

    24

  • Part Number

    4GB-11610-40

  • Description

    PISTON RING SET (1.00MM O/S)

  • Price

    50.15

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

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4GB-11610-00 - PISTON RING SET (STD)

  • Reference

    24

  • Part Number

    4GB-11610-00

  • Description

    PISTON RING SET (STD)

  • Price

    50.15

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

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4GB-11610-20 - PISTON RING SET (0.50MM O/S)

  • Reference

    24

  • Part Number

    4GB-11610-20

  • Description

    PISTON RING SET (0.50MM O/S)

  • Price

    50.15

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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55V-11633-00 - PIN, PISTON

  • Reference

    25

  • Part Number

    55V-11633-00

  • Description

    PIN, PISTON

  • Price

    33.40

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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93450-19095 - CIRCLIP

  • Reference

    26

  • Part Number

    93450-19095

  • Description

    CIRCLIP

  • Price

    0.70

  • Qty On Diagram

    2

  • Stock in Store

    7

  • Qty In Cart

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1UY-11536-01 - GEAR, DRIVE

  • Reference

    27

  • Part Number

    1UY-11536-01

  • Description

    GEAR, DRIVE

  • Price

    197.20

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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1YW-11454-00 - WEIGHT 1

  • Reference

    28

  • Part Number

    1YW-11454-00

  • Description

    WEIGHT 1

  • Price

    333.30

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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93101-25106 - OIL SEAL

  • Reference

    29

  • Part Number

    93101-25106

  • Description

    OIL SEAL

  • Price

    15.20

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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93306-20532 - BEARING

  • Reference

    30

  • Part Number

    93306-20532

  • Description

    BEARING

  • Price

    36.15

  • Qty On Diagram

    2

  • Stock in Store

    No Stock

  • Qty In Cart

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90387-201R7 - COLLAR

  • Reference

    31

  • Part Number

    90387-201R7

  • Description

    COLLAR

  • Price

    47.95

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90282-05034 - KEY, STRAIGHT

  • Reference

    32

  • Part Number

    90282-05034

  • Description

    KEY, STRAIGHT

  • Price

    2.50

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90170-16326 - NUT

  • Reference

    33

  • Part Number

    90170-16326

  • Description

    NUT

  • Price

    10.30

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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90215-16270 - WASHER, LOCK

  • Reference

    34

  • Part Number

    90215-16270

  • Description

    WASHER, LOCK

  • Price

    12.15

  • Qty On Diagram

    1

  • Stock in Store

    No Stock

  • Qty In Cart

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