Crankcases and Parts

Crankcases and Parts

Crankcases and Parts

Have you been looking for reliable motorcycle engine parts for your bike? Look no further! JJ Motorsports offers high-quality motorcycle crankcase components and engine parts from Eastern, JIMS, and S&S. Shop around the clock 24/7

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  • On Sale
    S&S CYCLE Super Stock™ Engine Case 31-0055
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    S&S CYCLE Super Stock™ Engine Case 31-0055

    S&S CYCLE

    Now: $1,643.36
    Was: $1,825.95
    S&S CYCLE Super Stock™ Engine Case 31-0055Cast from A356 T-6 heat-treated aluminum alloy, Machined to accept an oil filter assembly that mounts on the front of stock motor cases, All races are line-honed and breather cavity is precision-machined to...
    9200063
    SKU:
    9200063
    Availability:
    Ships Same Business Day
    Weight:
    29.38 LBS
    COLOR/FINISH:
    BLACK
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    RIDING STYLE:
    STREET
    BORE SIZE IMPERIAL:
    3.500'
    UNITS:
    KIT
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    Add to Cart
    Now: $1,643.36
    Was: $1,825.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,643.36
    Was: $1,825.95
    Subtotal:
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  • On Sale
    S&S CYCLE Super Stock™ Engine Case 31-0078
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    S&S CYCLE Super Stock™ Engine Case 31-0078

    S&S CYCLE

    Now: $1,659.56
    Was: $1,843.95
    S&S CYCLE Super Stock™ Engine Case 31-0078Cast from A356 T-6 heat-treated aluminum alloy, Machined to accept an oil filter assembly that mounts on the front of stock motor cases, All races are line-honed and breather cavity is precision-machined to...
    9200064
    SKU:
    9200064
    Availability:
    Ships Same Business Day
    Weight:
    29.00 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    ENGINE CASE
    UNITS:
    KIT
    BORE SIZE IMPERIAL:
    3.625'
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK®
    Add to Cart
    Now: $1,659.56
    Was: $1,843.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,659.56
    Was: $1,843.95
    Subtotal:
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  • On Sale
    S&S CYCLE Crankcase - Black 310-0878
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    S&S CYCLE Crankcase - Black 310-0878

    S&S CYCLE

    Now: $1,616.36
    Was: $1,795.95
    S&S CYCLE Crankcase Black 310-0878Stock or 4-1/8" bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143, Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminum, Tough...
    9200155
    SKU:
    9200155
    Availability:
    Ships Same Business Day
    Weight:
    35.80 LBS
    MATERIAL:
    356 T-6 ALUMINUM
    BASE COLOR:
    BLACK
    BORE SIZE IMPERIAL:
    STANDARD
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK
    PRODUCT NAME:
    CRANKCASE
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    BASE FINISH:
    POWDER-COATED
    COLOR/FINISH:
    BLACK
    Ships from Manufacture | Call to Order (231) 767-5055
    Now: $1,616.36
    Was: $1,795.95
    Ships from Manufacture | Call to Order (231) 767-5055 Quick view
    Qty in Cart: 0
    Price:
    Now: $1,616.36
    Was: $1,795.95
    Subtotal:
    Ships from Manufacture | Call to Order (231) 767-5055
  • On Sale
    S&S CYCLE Crankcase - Black 310-0856
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    S&S CYCLE Crankcase - Black 310-0856

    S&S CYCLE

    Now: $1,635.26
    Was: $1,816.95
    S&S CYCLE Crankcase Black 310-0856Stock or 4-1/8" bore crankcases to be used as a foundation for a custom engine or replacement for T111, T124, or T143, Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminum, Tough...
    9200157
    SKU:
    9200157
    Availability:
    Ships Same Business Day
    Weight:
    35.40 LBS
    BASE COLOR:
    BLACK
    PRODUCT NAME:
    CRANKCASE
    MATERIAL:
    356 T-6 ALUMINUM
    BASE FINISH:
    POWDER-COATED
    BORE SIZE IMPERIAL:
    4.125'
    COLOR/FINISH:
    BLACK
    COLOR/FINISH:
    POWDER-COATED
    MODEL:
    SUPER STOCK
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    Add to Cart
    Now: $1,635.26
    Was: $1,816.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,635.26
    Was: $1,816.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Special Application Crankcase 31-0047
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    S&S CYCLE Special Application Crankcase 31-0047

    S&S CYCLE

    Now: $1,588.46
    Was: $1,764.95
    S&S CYCLE Special Application Crankcase 31-0047Cam chest is moved outward .250" to allow crankcases to handle large cylinder bore sizes, Relocated cam chest oil pick-up increases gear case scavenging and virtually eliminates oil carry-over at sustained...
    9200158
    SKU:
    9200158
    Availability:
    Ships Same Business Day
    Weight:
    34.20 LBS
    PRODUCT NAME:
    CRANKCASE
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    Add to Cart
    Now: $1,588.46
    Was: $1,764.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,588.46
    Was: $1,764.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Crankcase - Natural 31-0008
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    S&S CYCLE Crankcase - Natural 31-0008

    S&S CYCLE

    Now: $1,937.66
    Was: $2,152.95
    S&S CYCLE Crankcase Natural 31-0008Cast from A356 T-6 heat-treated aluminum alloy, Include crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, top end oil screen...
    9200124
    SKU:
    9200124
    Availability:
    Ships Same Business Day
    Weight:
    31.40 LBS
    COLOR/FINISH:
    NATURAL
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    TYPE:
    GENERATOR
    UNITS:
    KIT
    Add to Cart
    Now: $1,937.66
    Was: $2,152.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,937.66
    Was: $2,152.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Crankcase - Black 31-0052
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    S&S CYCLE Crankcase - Black 31-0052

    S&S CYCLE

    Now: $1,643.36
    Was: $1,825.95
    S&S CYCLE Crankcase Black 31-0052Cast from A356 T-6 heat-treated aluminum alloy, Include crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, top end oil screen spring...
    9200132
    SKU:
    9200132
    Availability:
    Ships Same Business Day
    Weight:
    29.65 LBS
    BORE SIZE IMPERIAL:
    3.500'
    COLOR/FINISH:
    BLACK
    UNITS:
    KIT
    MATERIAL:
    ALUMINUM
    MODEL:
    SUPER STOCK®
    RIDING STYLE:
    STREET
    PRODUCT NAME:
    ENGINE CASE
    Add to Cart
    Now: $1,643.36
    Was: $1,825.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,643.36
    Was: $1,825.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Breather Valve - Twin Cam 310-0742
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    S&S CYCLE Breather Valve - Twin Cam 310-0742

    S&S CYCLE

    Now: $137.66
    Was: $152.95
    S&S CYCLE Breather Valve Twin Cam 310-0742Solves the problem of oil carryover in Twin Cam "A" motors with stock oil pump, Oil carryover is oil that comes out of your breather and all over your bike, Easy-to-install when changing cams or servicing the oil...
    9200136
    SKU:
    9200136
    Availability:
    Ships Same Business Day
    Weight:
    0.45 LBS
    PRODUCT NAME:
    BREATHER VALVE
    RIDING STYLE:
    STREET
    TYPE:
    CRANKCASE
    UNITS:
    EACH
    Add to Cart
    Now: $137.66
    Was: $152.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $137.66
    Was: $152.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Magnetic Oil Drain Plug 50-8335
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    S&S CYCLE Magnetic Oil Drain Plug 50-8335

    S&S CYCLE

    Now: $16.16
    Was: $17.95
    S&S CYCLE Magnetic Oil Drain Plug 50-8335Made in the U.S.A.
    9200141
    SKU:
    9200141
    Availability:
    Ships Same Business Day
    Weight:
    0.05 LBS
    FEATURES:
    MAGNETIC
    PRODUCT NAME:
    PLUG
    RIDING STYLE:
    STREET
    UNITS:
    EACH
    DIAMETER - THREAD SIZE IMPERIAL:
    1/2-20
    TYPE:
    OIL DRAIN
    Add to Cart
    Now: $16.16
    Was: $17.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $16.16
    Was: $17.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Engine Case 310-0367A
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    S&S CYCLE Engine Case 310-0367A

    S&S CYCLE

    Now: $1,557.86
    Was: $1,730.95
    S&S CYCLE Engine Case 310-0367AReplacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI), Feature greater overall strength than stock crankcases, Strong, dependable Timken®-style sprocket shaft bearings, Clearanced for strokes up to...
    9200142
    SKU:
    9200142
    Availability:
    Ships Same Business Day
    Weight:
    35.80 LBS
    PRODUCT NAME:
    ENGINE CASE
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    POWDER-COATED
    UNITS:
    EACH
    BASE FINISH:
    POWDER-COATED
    BORE SIZE IMPERIAL:
    3.750'
    COLOR/FINISH:
    BLACK
    RIDING STYLE:
    STREET
    Add to Cart
    Now: $1,557.86
    Was: $1,730.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,557.86
    Was: $1,730.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Engine Case 31-0172A
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    S&S CYCLE Engine Case 31-0172A

    S&S CYCLE

    Now: $2,185.16
    Was: $2,427.95
    S&S CYCLE Engine Case 31-0172AReplacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI), Feature greater overall strength than stock crankcases, Strong, dependable Timken®-style sprocket shaft bearings, Clearanced for strokes up to...
    9200187
    SKU:
    9200187
    Availability:
    Ships Same Business Day
    Weight:
    33.80 LBS
    BASE COLOR:
    BLACK
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    BORE SIZE IMPERIAL:
    STANDARD
    UNITS:
    EACH
    Add to Cart
    Now: $2,185.16
    Was: $2,427.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $2,185.16
    Was: $2,427.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Engine Case 31-0181A
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    S&S CYCLE Engine Case 31-0181A

    S&S CYCLE

    Now: $1,964.66
    Was: $2,182.95
    S&S CYCLE Engine Case 31-0181AReplacement Twin Cam "A" engine cases for stock H-D chassis only (carb and EFI), Feature greater overall strength than stock crankcases, Strong, dependable Timken®-style sprocket shaft bearings, Clearanced for strokes up to...
    9200188
    SKU:
    9200188
    Availability:
    Ships Same Business Day
    Weight:
    33.30 LBS
    BASE FINISH:
    WRINKLE BLACK
    BORE SIZE IMPERIAL:
    4.125'
    COLOR/FINISH:
    BLACK
    PRODUCT NAME:
    CRANKCASE
    RIDING STYLE:
    STREET
    BASE COLOR:
    BLACK
    UNITS:
    EACH
    Add to Cart
    Now: $1,964.66
    Was: $2,182.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,964.66
    Was: $2,182.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Super Stock™ Engine Case - Evolution 31-0005
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    S&S CYCLE Super Stock™ Engine Case - Evolution 31-0005

    S&S CYCLE

    Now: $1,456.16
    Was: $1,617.95
    S&S CYCLE Super Stock™ Engine Case Evolution 31-0005Cast from A356 T-6 heat-treated aluminum alloy, Machined to accept an oil filter assembly that mounts on the front of stock motor cases, All races are line-honed and breather cavity is...
    DS194301
    SKU:
    DS194301
    Availability:
    Ships Same Business Day
    Weight:
    31.75 LBS
    PRODUCT NAME:
    ENGINE CASE
    BORE SIZE IMPERIAL:
    3.500'
    UNITS:
    KIT
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    COLOR/FINISH:
    RAW
    MODEL:
    SUPER STOCK®
    RIDING STYLE:
    STREET
    Add to Cart
    Now: $1,456.16
    Was: $1,617.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,456.16
    Was: $1,617.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Super Stock™ Engine Case - Evolution 31-0000
    Quick view

    S&S CYCLE Super Stock™ Engine Case - Evolution 31-0000

    S&S CYCLE

    Now: $1,483.16
    Was: $1,647.95
    S&S CYCLE Super Stock™ Engine Case Evolution 31-0000Cast from A356 T-6 heat-treated aluminum alloy, Machined to accept an oil filter assembly that mounts on the front of stock motor cases, All races are line-honed and breather cavity is...
    DS194303
    SKU:
    DS194303
    Availability:
    Ships Same Business Day
    Weight:
    31.88 LBS
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    RAW
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    BORE SIZE IMPERIAL:
    3.500'
    UNITS:
    KIT
    Add to Cart
    Now: $1,483.16
    Was: $1,647.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,483.16
    Was: $1,647.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Super Stock™ Engine Case - Evolution 31-0001
    Quick view

    S&S CYCLE Super Stock™ Engine Case - Evolution 31-0001

    S&S CYCLE

    Now: $1,441.76
    Was: $1,601.95
    S&S CYCLE Super Stock™ Engine Case Evolution 31-0001Cast from A356 T-6 heat-treated aluminum alloy, Machined to accept an oil filter assembly that mounts on the front of stock motor cases, All races are line-honed and breather cavity is...
    DS194304
    SKU:
    DS194304
    Availability:
    Ships Same Business Day
    Weight:
    31.38 LBS
    BORE SIZE IMPERIAL:
    3.625'
    COLOR/FINISH:
    RAW
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    UNITS:
    KIT
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    Add to Cart
    Now: $1,441.76
    Was: $1,601.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,441.76
    Was: $1,601.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Super Stock™ Engine Case 31-0003
    Quick view

    S&S CYCLE Super Stock™ Engine Case 31-0003

    S&S CYCLE

    Now: $1,456.16
    Was: $1,617.95
    S&S CYCLE Super Stock™ Engine Case 31-0003Cast from A356 T-6 heat-treated aluminum alloy, Machined to accept an oil filter assembly that mounts on the front of stock motor cases, All races are line-honed and breather cavity is precision-machined to...
    DS194305
    SKU:
    DS194305
    Availability:
    Ships Same Business Day
    Weight:
    31.19 LBS
    RIDING STYLE:
    STREET
    COLOR/FINISH:
    RAW
    MODEL:
    SUPER STOCK®
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    BORE SIZE IMPERIAL:
    3.500'
    PRODUCT NAME:
    ENGINE CASE
    UNITS:
    KIT
    Add to Cart
    Now: $1,456.16
    Was: $1,617.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,456.16
    Was: $1,617.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Super Stock™ Engine Case 31-0004
    Quick view

    S&S CYCLE Super Stock™ Engine Case 31-0004

    S&S CYCLE

    Now: $1,483.16
    Was: $1,647.95
    S&S CYCLE Super Stock™ Engine Case 31-0004Cast from A356 T-6 heat-treated aluminum alloy, Machined to accept an oil filter assembly that mounts on the front of stock motor cases, All races are line-honed and breather cavity is precision-machined to...
    DS194306
    SKU:
    DS194306
    Availability:
    Ships Same Business Day
    Weight:
    30.81 LBS
    BORE SIZE IMPERIAL:
    3.625'
    UNITS:
    KIT
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    COLOR/FINISH:
    RAW
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    Add to Cart
    Now: $1,483.16
    Was: $1,647.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,483.16
    Was: $1,647.95
    Subtotal:
    Add to Cart
  • On Sale
    S&S CYCLE Super Stock Motor Case 31-0010
    Quick view

    S&S CYCLE Super Stock Motor Case 31-0010

    S&S CYCLE

    Now: $1,937.66
    Was: $2,152.95
    S&S CYCLE Super Stock Motor Case 31-0010Cast from A356 T-6 heat-treated aluminum alloy, Includes crankcase bolts, washers and nuts, cylinder mounting studs, timing hole plug, magnetic drain plug, assorted breather and oil line fittings, top end oil...
    310010
    SKU:
    310010
    Availability:
    Ships Same Business Day
    Weight:
    33.30 LBS
    TYPE:
    GENERATOR
    UNITS:
    KIT
    MODEL:
    SUPER STOCK®
    PRODUCT NAME:
    ENGINE CASE
    RIDING STYLE:
    STREET
    MATERIAL:
    A356 T-6 ALUMINUM ALLOY
    COLOR/FINISH:
    NATURAL
    Add to Cart
    Now: $1,937.66
    Was: $2,152.95
    Add to Cart Quick view
    Qty in Cart: 0
    Quantity:
    Price:
    Now: $1,937.66
    Was: $2,152.95
    Subtotal:
    Add to Cart
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