S&S Cycle 310-0878 Crankcase for 2006-'17 HD® Dyna® Models with Stock Bore, Alternator Style - Wrinkle Black Rings Snug ingress with secure seal

Snug ingress with secure seal around the neck

S&S 540 Cam - Designed for acceleration torque in 124 and larger engines

Interior ID window

Harley-Davidson™ FXBRS/FXFBS/FXDR/FXDRS/FLSB/FXBR/FXFB/FXLR/FXBB & 20-up Pan America + LiveWire

S&S Cycle 310-0878 Crankcase for 2006-'17 HD® Dyna® Models with Stock Bore, Alternator Style - Wrinkle Black Rings Snug ingress with secure sealS&S Cycle 310 0878 This stock bore, alternator style, wrinkle black crankcase is specially machined for the new S&S oil line installation kit for 2006 2017 Harley Davidson Dyna models. Features & Benefits Stock bore replacement for 06 17 Dyna models 41 8 and 4. 425" 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