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1991 Mercruiser 250BM21DS DRIVE SHAFT EXTENSION COMPONENTS(JACKSHAFT MODELS) Diagram and Parts

Manufacturer:
Catalog:
Year:
1991
Model:
250BM21DS
Component:
DRIVE SHAFT EXTENSION COMPONENTS(JACKSHAFT MODELS)
Serial Number:
#
Description
MSRP/Price
Req.
Qty
 
#
Description
MSRP/Price
Req.
Qty
 
  • 1

    DRIVESHAFT ASSEMBLY

    94819A 3

    $553.47
    $553.47
    1
  • 1

    HOUSING ASSEMBLY, Shaft Extension Support

    93911A 4

    $668.92
    $542.36
    1
     
    Add To Cart
  • 1

    SEPARATOR

    98626A 3

    $256.00
    $207.57
    1
     
    Add To Cart
  • 2

    FITTING, Grease

    74036

    $3.40
    $2.39
    1
     
    Add To Cart
  • 2

    SCREW, (.375-16 x 1.250)

    37612

    $1.60
    $1.13
    4
     
    Add To Cart
  • 2

    FITTING, Grease

    74036

    $38.89
    $35.57
    1
     
    Add To Cart
  • 2

    FLANGE, Yoke

    52504T

    $111.25
    $90.20
    2
     
    Add To Cart
  • 3

    CROSS AND BEARING, With Clips

    61221

    $135.83
    $110.14
    2
     
    Add To Cart
  • 3

    LOCKWASHER, (.375)

    35048

    $0.90
    $0.63
    4
     
    Add To Cart
  • 3

    SCREW, (.437-14 x 1.50)

    47651

    $1.80
    $1.27
    6
     
    Add To Cart
  • 4

    FITTING, Grease

    74036

    $3.40
    $2.39
    2
     
    Add To Cart
  • 4

    O-RING

    35029

    $2.20
    $1.55
    2
     
    Add To Cart
  • 4

    FITTING, Grease

    74036

    $38.89
    $35.57
    2
     
    Add To Cart
  • 4

    LOCKWASHER, (.437)

    32993

    $1.20
    $0.85
    6
     
    Add To Cart
  • 5

    RETAINER

    60931

    $16.70
    $11.76
    2
     
    Add To Cart
  • 5

    SCREW, (.437-20 x 1.500)

    805159

    $3.40
    $2.39
    8
     
    Add To Cart
  • 5

    MOUNT ASSEMBLY

    93923A 1

    $121.25
    $98.31
    2
     
    Add To Cart
  • 6

    NUT, (.437-20) Stainless Steel

    34933

    $3.80
    $2.68
    8
     
    Add To Cart
  • 6

    SCREW, (.437-14 x 1.50)

    47651

    $1.80
    $1.27
    4
     
    Add To Cart
  • 6

    SHUTTER, Water

    60930

    $28.75
    $23.31
    2
     
    Add To Cart
  • 7

    ELBOW ASSEMBLY, Exhaust

    94018A 1

    $116.67
    $94.59
    2
     
    Add To Cart
  • 7

    SUPPORT ASSEMBLY

    42304A 2

    $828.50
    $715.99
    1
     
    Add To Cart
  • 7

    LOCKWASHER, (.437)

    32993

    $1.20
    $0.85
    4
     
    Add To Cart
  • 8

    SCREW, (.375-16 x 1.25)

    58640

    $4.90
    $3.45
    6
     
    Add To Cart
  • 8

    SEAL

    93924

    $24.20
    $17.04
    1
     
    Add To Cart
  • 8

    HOUSING ASSEMBLY

    814309A 1

    $366.00
    $316.30
    1
     
    Add To Cart
  • 9

    LOCKWASHER, (.375)

    58643

    $1.40
    $0.99
    6
     
    Add To Cart
  • 9

    BEARING

    93944A 1

    $106.20
    $74.79
    1
     
    Add To Cart
  • 9

    COVER KIT

    818718A 3

    $39.58
    $32.09
    1
     
    Add To Cart
  • 10

    GASKET

    86015

    $7.90
    $5.56
    1
     
    Add To Cart
  • 10

    HOSE

    48659 4

    $69.25
    $69.25
    4
  • 10

    RING, Retaining

    93914

    $78.90
    $55.56
    1
     
    Add To Cart
  • 11

    CLAMP, Worm Gear

    815504256

    $10.70
    $7.54
    20
     
    Add To Cart
  • 11

    FITTING, Grease

    74036

    $3.40
    $2.39
    1
     
    Add To Cart
  • 11

    SCREW, (.250-20 x .500)

    98253

    $0.80
    $0.56
    7
     
    Add To Cart
  • 11

    FITTING, Grease

    74036

    $38.89
    $35.57
    1
     
    Add To Cart
  • 12

    TUBE ASSEMBLY, Exhaust

    94608A 1

    $214.50
    $214.50
    2
  • 12

    LOCKWASHER, (.250) Stainless Steel

    26992

    $0.80
    $0.56
    7
     
    Add To Cart
  • 12

    SHAFT ASSEMBLY (INPUT)

    93908A 1

    $902.79
    $780.19
    1
     
    Add To Cart
  • 13

    ELBOW ASSEMBLY, Exhaust

    (USE WITH 3 IN. ELBOW)

    98630A 1

    $120.50
    $120.50
    2
  • 13

    SCREW, (.375-16 x 1.250)

    37612

    $1.60
    $1.13
    2
     
    Add To Cart
  • 13

    EXPANSION PLUG

    93921

    $31.00
    $21.83
    1
     
    Add To Cart
  • 13

    ELBOW

    (USE WITH 4 IN. ELBOW)

    44390T

    $549.75
    $445.74
    2
     
    Add To Cart
  • 13

    SCREW, (.375-16 x 2.750)

    47688

    $2.30
    $1.62
    2
     
    Add To Cart
  • 14

    RING, Retaining

    93915

    $46.80
    $32.96
    1
     
    Add To Cart
  • 14

    LOCKWASHER, (.375)

    35048

    $0.90
    $0.63
    6
     
    Add To Cart
  • 15

    FITTING, Grease

    74036

    $3.40
    $2.39
    1
     
    Add To Cart
  • 15

    FITTING, Grease

    74036

    $38.89
    $35.57
    1
     
    Add To Cart
  • 14

    BELLOWS ASSEMBLY

    (USE WITH 3 IN. ELBOW)

    70981A 3

    $57.10
    $40.21
    2
     
    Add To Cart
  • 14

    TUBE

    (USE WITH 4 IN. ELBOW)

    78458A 1

    $68.40
    $48.17
    2
     
    Add To Cart
  • 15

    WASHER, (.390 x .750 x .093) (FOR SLOT)

    20572

    $1.10
    $0.77
    1
     
    Add To Cart
  • 16

    SHIELD, Lower

    93918A 1

    $174.92
    $141.82
    2
     
    Add To Cart
  • 15

    STRAP, Ground

    95740

    $6.85
    $6.85
    2
  • 16

    CLAMP

    92850

    $2.90
    $2.04
    1
     
    Add To Cart
  • 17

    SCREW, (.375-16 x .875)

    76926

    $0.80
    $0.56
    6
     
    Add To Cart
  • 18

    SHIELD, Upper

    93919A 1

    $178.08
    $144.39
    2
     
    Add To Cart
  • 16

    CLAMP, Worm Gear

    815504372

    $11.00
    $7.75
    4
     
    Add To Cart
  • 17

    STUD, (.375-16 x 2.750) Special

    64066

    $4.40
    $3.10
    1
     
    Add To Cart
  • 18

    NUT, (.375-16)

    32219

    $1.80
    $1.27
    1
     
    Add To Cart
  • 19

    SCREW, (.375-16 x .880)

    96995

    $1.20
    $0.85
    8
     
    Add To Cart
  • 17

    BRACKET ASSEMBLY

    41063A 1

    $36.83
    $29.86
    1
     
    Add To Cart
  • 18

    SCREW, (#10-32 x .250)

    24231

    $0.80
    $0.56
    1
     
    Add To Cart
  • 19

    PLATE

    93920 1

    $36.17
    $29.32
    1
     
    Add To Cart
  • 20

    NUT, (.375-16)

    68411

    $4.50
    $3.17
    8
     
    Add To Cart
  • 19

    NUT, (#10-32)

    46438

    $4.00
    $2.82
    1
     
    Add To Cart
  • 20

    SCREW, (.437-14 x .750)

    92913

    $10.60
    $7.46
    2
     
    Add To Cart
  • 21

    SHAFT (OUTPUT)

    93906A 2

    $699.92
    $567.50
    1
     
    Add To Cart
  • 20

    TERMINAL BLOCK

    45915

    $0.60
    $0.42
    1
     
    Add To Cart
  • 21

    LOCKWASHER, (.437)

    32993

    $1.20
    $0.85
    2
     
    Add To Cart
  • 22

    O-RING, (.862 x .103)

    25439

    $1.50
    $1.06
    2
     
    Add To Cart
  • 23

    RING, Retaining

    94104

    $7.30
    $5.14
    1
     
    Add To Cart
  • 24

    BEARING, Ball

    62780A 1

    $101.83
    $82.57
    1
     
    Add To Cart
  • 25

    COUPLING ASSEMBLY

    2 PIECE SEAL

    49736A 3

    $341.80
    $341.80
    1
  • 26

    BUSHING

    2 PIECE SEAL

    95966

    $17.30
    $17.30
    1
  • 27

    STUD

    2 PIECE SEAL

    98532A 1

    $13.60
    $9.58
    6
     
    Add To Cart
  • 28

    WASHER

    2 PIECE SEAL

    34567

    $1.10
    $0.77
    6
     
    Add To Cart
  • 29

    NUT, (.437-20)

    2 PIECE SEAL

    98533

    $0.80
    $0.56
    6
     
    Add To Cart
  • 30

    COUPLING ASSEMBLY

    FULL CIRCLE SEAL

    18643A 8

    $379.25
    $307.50
    1
     
    Add To Cart
  • 31

    BUMPER, Rubber

    FULL CIRCLE SEAL

    18644

    $2.50
    $1.76
    3
     
    Add To Cart
  • 32

    SCREW, (.375-16 x 1.12)

    FULL CIRCLE SEAL

    14883

    $1.40
    $0.99
    3
     
    Add To Cart
  • 33

    WASHER

    FULL CIRCLE SEAL

    13510

    $2.90
    $2.04
    3
     
    Add To Cart
  • 34

    BUSHING

    FULL CIRCLE SEAL

    49126

    $40.92
    $33.18
    1
     
    Add To Cart
  • 35

    RING

    94103

    $13.40
    $9.44
    1
     
    Add To Cart
  • 36

    SCREW, (.500-20 x 4.500)

    57053

    $3.80
    $2.68
    2
     
    Add To Cart
  • 37

    WASHER (SPHERICAL)

    42307

    $13.30
    $9.37
    4
     
    Add To Cart
  • 38

    NUT, (.500-20)

    28040

    $2.30
    $1.62
    2
     
    Add To Cart
  • 39

    HARNESS ASSEMBLY

    41575A 1

    $79.68
    $79.68
    1
* To comply with Mercury policy, Boats.net will not ship OEM Mercury parts outside of the United States.
* Pricing applies to Internet orders only. Required numbers shown are quantities used per whole assembly. Prices are based on a quantity of one (Each). You order one, you get one. Order the quantities needed for your repair.