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Twin Power 17-Up M8 Black 4.25 Inch Big Bore Cylinders Pair

TwinPower Part number: 486959 Out of stock
Picture of Twin Power 17-Up M8 Black 4.25 Inch Big Bore Cylinders Pair Click image to zoom
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$676.99
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Availability: Out of stock
Part number: 486959
Manufacturer: TwinPower
Twin Power 17-Up M8 Black 4.25 Inch Big Bore Cylinders Pair
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Temporarily out of stock

High-quality cast Big Bore Cylinders from Twin Power™. Factory style black textured powdercoat finish with highlighted fins. Cast in iron liners for strength and durability and finish honed and ready to run.

Direct bolt-on, requires no machine work to crankcases or cylinder heads

Increases 107 in. engines to 124 in. and 114 in. engines to 128 in.

Twin Power 17-Up M8 Black 4.25 Inch Big Bore Cylinders Pair

Big Bore Cylinder 4.25 in., Black, Pair

Includes cylinder head dowels

Sold in pairs

215 vehicle listings Source data lists this part for the vehicles shown below. Confirm engine, drivetrain, position, and other options before ordering.
2017 14 listings
Harley-Davidson FLHR Road King Base
Harley-Davidson FLHRXS Road King Special Base
Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
Harley-Davidson FLHTCUTG Tri Glide Ultra Base
Harley-Davidson FLHTK Ultra Limited Base
Harley-Davidson FLHTKL Ultra Limited Low Base
Harley-Davidson FLHTKSE CVO Limited Base
Harley-Davidson FLHX Street Glide Base
Harley-Davidson FLHXS Street Glide Special Base
Harley-Davidson FLHXSE CVO Street Glide Base
Harley-Davidson FLRT Freewheeler Base
Harley-Davidson FLTRU Road Glide Ultra Base
Harley-Davidson FLTRX Road Glide Base
Harley-Davidson FLTRXS Road Glide Special Base
2018 28 listings
Harley-Davidson FLDE Deluxe 107 Base
Harley-Davidson FLFB Fat Boy 107 Base
Harley-Davidson FLFBS Fat Boy 114 Base
Harley-Davidson FLHC Heritage Classic 107 Base
Harley-Davidson FLHCS Heritage Classic 114 Base
Harley-Davidson FLHR Road King Base
Harley-Davidson FLHRXS Road King Special Base
Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
Harley-Davidson FLHTCUTG Tri Glide Ultra Base
Harley-Davidson FLHTK Ultra Limited Base
Harley-Davidson FLHTKL Ultra Limited Low Base
Harley-Davidson FLHTKSE CVO Limited Base
Harley-Davidson FLHX Street Glide Base
Harley-Davidson FLHXS Street Glide Special Base
Harley-Davidson FLHXSE CVO Street Glide Base
Harley-Davidson FLRT Freewheeler Base
Harley-Davidson FLSB Sport Glide 107 Base
Harley-Davidson FLSL Softail Slim 107 Base
Harley-Davidson FLTRU Road Glide Ultra Base
Harley-Davidson FLTRX Road Glide Base
Harley-Davidson FLTRXS Road Glide Special Base
Harley-Davidson FLTRXSE CVO Road Glide Base
Harley-Davidson FXBB Street Bob 107 Base
Harley-Davidson FXBR Breakout 107 Base
Harley-Davidson FXBRS Breakout 114 Base
Harley-Davidson FXFB Fat Bob 107 Base
Harley-Davidson FXFBS Fat Bob 114 Base
Harley-Davidson FXLR Low Rider 107 Base
2019 30 listings
Harley-Davidson FLDE Deluxe 107 Base
Harley-Davidson FLFB Fat Boy 107 Base
Harley-Davidson FLFBS Fat Boy 114 Base
Harley-Davidson FLHC Heritage Classic 107 Base
Harley-Davidson FLHCS Heritage Classic 114 Base
Harley-Davidson FLHR Road King Base
Harley-Davidson FLHRXS Road King Special Base
Harley-Davidson FLHT Electra Glide Standard Base
Harley-Davidson FLHTCU Electra Glide Ultra Classic Base
Harley-Davidson FLHTCUTG Tri Glide Ultra Base
Harley-Davidson FLHTK Ultra Limited Base
Harley-Davidson FLHTKL Ultra Limited Low Base
Harley-Davidson FLHTKSE CVO Limited Base
Harley-Davidson FLHX Street Glide Base
Harley-Davidson FLHXS Street Glide Special Base
Harley-Davidson FLHXSE CVO Street Glide Base
Harley-Davidson FLRT Freewheeler Base
Harley-Davidson FLSB Sport Glide 107 Base
Harley-Davidson FLSL Softail Slim 107 Base
Harley-Davidson FLTRU Road Glide Ultra Base
Harley-Davidson FLTRX Road Glide Base
Harley-Davidson FLTRXS Road Glide Special Base
Harley-Davidson FLTRXSE CVO Road Glide Base
Harley-Davidson FXBB Street Bob 107 Base
Harley-Davidson FXBR Breakout 107 Base
Harley-Davidson FXBRS Breakout 114 Base
Harley-Davidson FXDRS FXDR 114 Base
Harley-Davidson FXFB Fat Bob 107 Base
Harley-Davidson FXFBS Fat Bob 114 Base
Harley-Davidson FXLR Low Rider 107 Base
2020 28 listings
Harley-Davidson FLDE Deluxe 107 Base
Harley-Davidson FLFBS Fat Boy 114 Base
Harley-Davidson FLHC Heritage Classic 107 Base
Harley-Davidson FLHCS Heritage Classic 114 Base
Harley-Davidson FLHR Road King Base
Harley-Davidson FLHRXS Road King Special Base
Harley-Davidson FLHT Electra Glide Standard Base
Harley-Davidson FLHTCUTG Tri Glide Ultra Base
Harley-Davidson FLHTCUTGSE CVO Tri Glide Base
Harley-Davidson FLHTK Ultra Limited Base
Harley-Davidson FLHTKSE CVO Limited Base
Harley-Davidson FLHX Street Glide Base
Harley-Davidson FLHXS Street Glide Special Base
Harley-Davidson FLHXSE CVO Street Glide Base
Harley-Davidson FLRT Freewheeler Base
Harley-Davidson FLSB Sport Glide 107 Base
Harley-Davidson FLSL Softail Slim 107 Base
Harley-Davidson FLTRK Road Glide Limited Base
Harley-Davidson FLTRX Road Glide Base
Harley-Davidson FLTRXS Road Glide Special Base
Harley-Davidson FLTRXSE CVO Road Glide Base
Harley-Davidson FXBB Street Bob 107 Base
Harley-Davidson FXBRS Breakout 114 Base
Harley-Davidson FXDRS FXDR 114 Base
Harley-Davidson FXFBS Fat Bob 114 Base
Harley-Davidson FXLR Low Rider 107 Base
Harley-Davidson FXLRS Low Rider S 114 Base
Harley-Davidson FXST Softail Standard 107 Base
2021 25 listings
Harley-Davidson FLFBS Fat Boy 114 Base
Harley-Davidson FLH Electra Glide Revival Base
Harley-Davidson FLHC Heritage Classic 107 Base
Harley-Davidson FLHCS Heritage Classic 114 Base
Harley-Davidson FLHR Road King Base
Harley-Davidson FLHRXS Road King Special Base
Harley-Davidson FLHT Electra Glide Standard Base
Harley-Davidson FLHTCUTG Tri Glide Ultra Base
Harley-Davidson FLHTCUTGSE CVO Tri Glide Base
Harley-Davidson FLHTK Ultra Limited Base
Harley-Davidson FLHTKSE CVO Limited Base
Harley-Davidson FLHX Street Glide Base
Harley-Davidson FLHXS Street Glide Special Base
Harley-Davidson FLHXSE CVO Street Glide Base
Harley-Davidson FLRT Freewheeler Base
Harley-Davidson FLSB Sport Glide 107 Base
Harley-Davidson FLSL Softail Slim 107 Base
Harley-Davidson FLTRK Road Glide Limited Base
Harley-Davidson FLTRX Road Glide Base
Harley-Davidson FLTRXS Road Glide Special Base
Harley-Davidson FLTRXSE CVO Road Glide Base
Harley-Davidson FXBBS Street Bob 114 Base
Harley-Davidson FXFBS Fat Bob 114 Base
Harley-Davidson FXLRS Low Rider S 114 Base
Harley-Davidson FXST Softail Standard 107 Base
2022 26 listings
Harley-Davidson FLFBS Fat Boy 114 Base
Harley-Davidson FLHCS Heritage Classic 114 Base
Harley-Davidson FLHR Road King Base
Harley-Davidson FLHRXS Road King Special Base
Harley-Davidson FLHT Electra Glide Standard Base
Harley-Davidson FLHTCUTG Tri Glide Ultra Base
Harley-Davidson FLHTCUTG Tri Glide Ultra G.I. Base
Harley-Davidson FLHTCUTGSE CVO Tri Glide Base
Harley-Davidson FLHTK Ultra Limited Base
Harley-Davidson FLHX Street Glide Base
Harley-Davidson FLHXS Street Glide Special Base
Harley-Davidson FLHXSE CVO Street Glide Base
Harley-Davidson FLHXST Street Glide ST Base
Harley-Davidson FLRT Freewheeler Base
Harley-Davidson FLTRK Road Glide Limited Base
Harley-Davidson FLTRKSE CVO Road Glide Limited Base
Harley-Davidson FLTRX Road Glide Base
Harley-Davidson FLTRXS Road Glide Special Base
Harley-Davidson FLTRXSE CVO Road Glide Base
Harley-Davidson FLTRXST Road Glide ST Base
Harley-Davidson FXBBS Street Bob 114 Base
Harley-Davidson FXFBS Fat Bob 114 Base
Harley-Davidson FXLRS Low Rider S 117 Base
Harley-Davidson FXLRST Low Rider ST 117 Base
Harley-Davidson FXRST Low Rider El Diablo 117 Base
Harley-Davidson FXST Softail Standard 107 Base
2023 21 listings
Harley-Davidson FLFBS Fat Boy 114 Base
Harley-Davidson FLHCS Heritage Classic 114 Base
Harley-Davidson FLHRXS Road King Special Base
Harley-Davidson FLHTCUTG Tri Glide Ultra Base
Harley-Davidson FLHTK Ultra Limited Base
Harley-Davidson FLHX Street Glide Base
Harley-Davidson FLHXS Street Glide Special Base
Harley-Davidson FLHXST Street Glide ST Base
Harley-Davidson FLRT Freewheeler Base
Harley-Davidson FLTRK Road Glide Limited Base
Harley-Davidson FLTRKSE CVO Road Glide Limited Base
Harley-Davidson FLTRT Road Glide 3 Base
Harley-Davidson FLTRX Road Glide Base
Harley-Davidson FLTRXS Road Glide Special Base
Harley-Davidson FLTRXST Road Glide ST Base
Harley-Davidson FXBBS Street Bob 114 Base
Harley-Davidson FXBR Breakout 117 Base
Harley-Davidson FXFBS Fat Bob 114 Base
Harley-Davidson FXLRS Low Rider S 117 Base
Harley-Davidson FXLRST Low Rider ST 117 Base
Harley-Davidson FXST Softail Standard 107 Base

This product has more vehicle listings than shown here. Use the garage selector or contact us with your complete vehicle details before ordering.

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