Overview Product Description Crankcase for Dyna 4.125" bore crankcase can 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 powder coat finishes Reinforced front motor mount for extra strength Timken® sprocket shaft bearing – Strong enough for the most demanding applications Clearanced for strokes up to 4-3/16" and cams up to 0.720" lift Includes pinion and Timken® bearing Manufacturer's Statement of Origin (MSO) included Includes studs and cam bearings installed Crankcases are specially machined for the new S&S oil line installation kits sold separately Made in the USA Requires oil supply line installation kit. Product Videos Custom Field Product Reviews Write a Review Write a Review × S&S Cycle S&S Cycle #310-0856 - Crankcase - 4.125" Bore w/Stock Bolt Pattern - Wrinkle Black - Dyna Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *
S&S Cycle | sku: 0920-0155 S&S Cycle #310-0878 - Crankcase - 3.937" Bore - Alternator Style - Wrinkle Black - Dyna MSRP: $2,249.95 Was: Now: $2,024.96 Add to Cart S&S Cycle | sku: 0920-0093 S&S Cycle #310-0369 - Engine Case - 4.125" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $1,999.95 Was: Now: $1,799.96 Add to Cart S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart Recommended S&S Cycle | sku: 0920-0155 S&S Cycle #310-0878 - Crankcase - 3.937" Bore - Alternator Style - Wrinkle Black - Dyna MSRP: $2,249.95 Was: Now: $2,024.96 Add to Cart S&S Cycle | sku: 0920-0093 S&S Cycle #310-0369 - Engine Case - 4.125" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $1,999.95 Was: Now: $1,799.96 Add to Cart S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart × OK
S&S Cycle | sku: 0920-0093 S&S Cycle #310-0369 - Engine Case - 4.125" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $1,999.95 Was: Now: $1,799.96 Add to Cart S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart Recommended S&S Cycle | sku: 0920-0155 S&S Cycle #310-0878 - Crankcase - 3.937" Bore - Alternator Style - Wrinkle Black - Dyna MSRP: $2,249.95 Was: Now: $2,024.96 Add to Cart S&S Cycle | sku: 0920-0093 S&S Cycle #310-0369 - Engine Case - 4.125" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $1,999.95 Was: Now: $1,799.96 Add to Cart S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0920-0155 S&S Cycle #310-0878 - Crankcase - 3.937" Bore - Alternator Style - Wrinkle Black - Dyna MSRP: $2,249.95 Was: Now: $2,024.96 Add to Cart S&S Cycle | sku: 0920-0093 S&S Cycle #310-0369 - Engine Case - 4.125" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $1,999.95 Was: Now: $1,799.96 Add to Cart S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0920-0093 S&S Cycle #310-0369 - Engine Case - 4.125" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $1,999.95 Was: Now: $1,799.96 Add to Cart S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0920-0142 S&S Cycle #310-0367A - Engine Case - 3.750" Bore w/Stock Stud Pattern - Wrinkle Black - Twin Cam MSRP: $2,199.95 Was: Now: $1,979.96 Add to Cart S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0920-0188 S&S Cycle #31-0181A - Engine Case - 4.125" Bore w/Stock Stud Pattern - 88A Engine Type - Wrinkle Black - Twin Cam MSRP: $2,182.95 Was: Now: $1,964.66 Add to Cart S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart
S&S Cycle | sku: 0901-0249 S&S Cycle #310-0883A - T143 Long Block Engine - Wrinkle Black and Chrome - Dyna MSRP: $11,739.95 Was: Now: $10,565.96 Add to Cart