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Engine & Performance

Choose from Engine & Performance products for Harley-Davidson, American V-twin and compatible motorcycle applications. Across the range you will find products for engine components. Compatibility varies, so match the stated model, year and technical details before ordering.

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£3.13 - £3.13
£3.13
£3.18
£3.18 - £3.18
£3.18

Drag Specialties Rocker Shaft Seals Fits Harley-Davidson Dyna, Touring Models 1966-1984

Out of stock

DescriptionRocker Shaft SealsContains shims, spacers and seals to rebuild all four rocker arm shafts found in 66-84 Shovelhead enginesRocker arm wo...

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£3.13 - £3.13
£3.13
£3.18
£3.18 - £3.18
£3.18
Sold out
Sold out
£13.95 - £13.95
£13.95
£14.16
£14.16 - £14.16
£14.16

Drag Specialties Rocker Shaft Adjuster Kit Fits Harley-Davidson Dyna, Touring Models 1966-1984

Out of stock

DescriptionRocker Shaft Adjuster KitContains shims, spacers and seals to rebuild all four rocker arm shafts found in '66-'84 Shovelhead enginesRock...

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£13.95 - £13.95
£13.95
£14.16
£14.16 - £14.16
£14.16
Sold out
£72.02 - £72.02
£72.02
£73.12
£73.12 - £73.12
£73.12

Cam Chain Tensioner Dyna, Softail, Touring, Trike

in stock

DescriptionCam Chain TensionerStock replacement hydraulic cam chain tensionersSold as a primary/secondary 2-piece kitSpecificationsUnits : PairRidi...

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£72.02 - £72.02
£72.02
£73.12
£73.12 - £73.12
£73.12
£493.70 - £493.70
£493.70
£501.19
£501.19 - £501.19
£501.19

Drag Specialties Connecting Rod Set Fits Harley-Davidson Dyna, Softail, Touring, Trike Models 2003-2017

Only 1 left!

DescriptionConnecting Rod SetHeavy-duty replacements, perfect for stock motorsMeets or exceeds OEM specificationsComes completely fitted and ready ...

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£493.70 - £493.70
£493.70
£501.19
£501.19 - £501.19
£501.19
Sold out
£506.04 - £506.04
£506.04
£513.72
£513.72 - £513.72
£513.72

Drag Specialties Connecting Rod Set Fits Harley-Davidson Dyna, Softail, Touring Models 1999-2006

Out of stock

DescriptionConnecting Rod SetHeavy-duty replacements, perfect for stock motorsMeets or exceeds OEM specificationsComes completely fitted and ready ...

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£506.04 - £506.04
£506.04
£513.72
£513.72 - £513.72
£513.72
Sold out
£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20

Drag Specialties Replacement Piston Kit Fits Harley-Davidson Softail, Touring Models 2000-2005

in stock

DescriptionReplacement Piston Kit Ideal for OEM replacementOEM-quality cast aluminium alloy constructionKits include two pistons, wrist pins and cl...

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£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20
£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20

Drag Specialties Replacement Piston Kit Fits Harley-Davidson Softail, Touring Models 2000-2005

in stock

DescriptionReplacement Piston Kit Ideal for OEM replacementOEM-quality cast aluminium alloy constructionKits include two pistons, wrist pins and cl...

View full details
£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20
£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20

Drag Specialties Replacement Piston Kit Fits Harley-Davidson Softail, Touring Models 2000-2005

in stock

DescriptionReplacement Piston Kit Ideal for OEM replacementOEM-quality cast aluminium alloy constructionKits include two pistons, wrist pins and cl...

View full details
£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20
£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20

Drag Specialties Replacement Piston Kit Fits Harley-Davidson Softail, Touring Models 2000-2005

in stock

DescriptionReplacement Piston Kit Ideal for OEM replacementOEM-quality cast aluminium alloy constructionKits include two pistons, wrist pins and cl...

View full details
£130.22 - £130.22
£130.22
£132.20
£132.20 - £132.20
£132.20
Sold out
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64

Drag Specialties Piston Kit Fits Harley-Davidson Dyna, Softail, Touring, Trike Models 2017-2024

Out of stock

DescriptionPiston KitPistons are coated to extend piston life, reduces friction and allows for cooler running enginesIdeal for OEM replacementInclu...

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£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64
Sold out
Sold out
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64

Drag Specialties Piston Kit Fits Harley-Davidson Dyna, Softail, Touring, Trike Models 2017-2024

Out of stock

DescriptionPiston KitPistons are coated to extend piston life, reduces friction and allows for cooler running enginesIdeal for OEM replacementInclu...

View full details
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64
Sold out
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64

Drag Specialties Piston Kit Fits Harley-Davidson Dyna, Softail, Touring, Trike Models 2017-2024

Only 4 left!

DescriptionPiston KitPistons are coated to extend piston life, reduces friction and allows for cooler running enginesIdeal for OEM replacementInclu...

View full details
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64

Drag Specialties Piston Kit Fits Harley-Davidson Softail, Touring, Trike Models 2017-2024

Only 1 left!

DescriptionPiston KitPistons are coated to extend piston life, reduces friction and allows for cooler running enginesIdeal for OEM replacementInclu...

View full details
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64

Drag Specialties Piston Kit Fits Harley-Davidson Softail, Touring, Trike Models 2017-2024

Only 2 left!

DescriptionPiston KitPistons are coated to extend piston life, reduces friction and allows for cooler running enginesIdeal for OEM replacementInclu...

View full details
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64

Drag Specialties Piston Kit Fits Harley-Davidson Softail, Touring, Trike Models 2017-2024

Only 4 left!

DescriptionPiston KitPistons are coated to extend piston life, reduces friction and allows for cooler running enginesIdeal for OEM replacementInclu...

View full details
£139.52 - £139.52
£139.52
£141.64
£141.64 - £141.64
£141.64
Sold out
£134.89 - £134.89
£134.89
£136.94
£136.94 - £136.94
£136.94

Drag Specialties Big Bore Piston Fits Harley-Davidson Softail, Touring Models 2000-2005

Out of stock

DescriptionBig Bore PistonBig Bore Piston for Twin CamOEM-quality cast aluminium alloy constructionKit includes two pistons, wrist pins and clipsAc...

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£134.89 - £134.89
£134.89
£136.94
£136.94 - £136.94
£136.94
Sold out
£134.89 - £134.89
£134.89
£136.94
£136.94 - £136.94
£136.94

Drag Specialties Big Bore Piston Fits Harley-Davidson Softail, Touring Models 2000-2005

in stock

DescriptionBig Bore PistonBig Bore Piston for Twin CamOEM-quality cast aluminium alloy constructionKit includes two pistons, wrist pins and clipsAc...

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£134.89 - £134.89
£134.89
£136.94
£136.94 - £136.94
£136.94
£122.88 - £122.88
£122.88
£124.75
£124.75 - £124.75
£124.75

Drag Specialties Big Bore Piston Fits Harley-Davidson Softail, Touring Models 2000-2005

in stock

DescriptionBig Bore PistonBig Bore Piston for Twin CamOEM-quality cast aluminium alloy constructionKit includes two pistons, wrist pins and clipsAc...

View full details
£122.88 - £122.88
£122.88
£124.75
£124.75 - £124.75
£124.75
£131.60 - £131.60
£131.60
£133.60
£133.60 - £133.60
£133.60

Drag Specialties Big Bore Piston Fits Harley-Davidson Softail, Touring Models 2000-2005

in stock

DescriptionBig Bore PistonBig Bore Piston for Twin CamOEM-quality cast aluminium alloy constructionKit includes two pistons, wrist pins and clipsAc...

View full details
£131.60 - £131.60
£131.60
£133.60
£133.60 - £133.60
£133.60
£107.07 - £107.07
£107.07
£108.69
£108.69 - £108.69
£108.69

Drag Specialties Replacement Piston Fits Harley-Davidson Dyna, Softail, Touring Models 2010-2014

in stock

DescriptionReplacement PistonOEM quality cast aluminium alloy constructionSome fitments feature pistons with a coating that extends piston life, re...

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£107.07 - £107.07
£107.07
£108.69
£108.69 - £108.69
£108.69
£95.77 - £95.77
£95.77
£97.22
£97.22 - £97.22
£97.22

Drag Specialties Replacement Piston Fits Harley-Davidson Dyna, Softail, Touring Models 2007-2013

in stock

DescriptionReplacement PistonOEM quality cast aluminium alloy constructionSome fitments feature pistons with a coating that extends piston life, re...

View full details
£95.77 - £95.77
£95.77
£97.22
£97.22 - £97.22
£97.22
Save 8% Save %
£646.90
£646.90 - £646.90
£646.90
£592.41
£592.41 - £592.41
£592.41

Arlen Ness Chrome 10-Gauge Monster Sucker Air Cleaner Kit w/Cover for Various Various Harley-Davidson Motorcycles (See Fitment List)

Only 5 left!

DescriptionMonster Sucker® Air Cleaner KitFeatures Big Sucker “hidden breather” technology and more filter surface area for maximum performanceHidd...

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£646.90
£646.90 - £646.90
£646.90
£592.41
£592.41 - £592.41
£592.41
Save 8% Save %
Save 8% Save %
£367.46
£367.46 - £367.46
£367.46
£336.51
£336.51 - £336.51
£336.51

Arlen Ness Big Sucker Stage 1 Air Cleaner Kit w/10 Gauge Style Cover for Various Various Harley-Davidson Motorcycles (See Fitment List)

in stock

DescriptionBig Sucker™ Stage I Air Filter KitEach hidden breather is O-ringed at the heads and exits at the mouth of the injector/carb to provide e...

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£367.46
£367.46 - £367.46
£367.46
£336.51
£336.51 - £336.51
£336.51
Save 8% Save %
Save 8% Save %
£646.90
£646.90 - £646.90
£646.90
£592.41
£592.41 - £592.41
£592.41

Arlen Ness Black Beveled Monster Sucker Air Cleaner Kit w/Cover for Various Various Harley-Davidson Motorcycles (See Fitment List)

in stock

DescriptionMonster Sucker® Air Cleaner KitFeatures Big Sucker “hidden breather” technology and more filter surface area for maximum performanceHidd...

View full details
£646.90
£646.90 - £646.90
£646.90
£592.41
£592.41 - £592.41
£592.41
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