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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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Drag Specialties O-Ring Kit For EFI Fuel Line - Part #07060209 - Hogparts UK
£7.84 - £7.84
£7.84
£7.84 - £7.84
£7.84

Drag Specialties Replacement O-ring Service Kit - Rubber - Black

In stock

DescriptionReplacement O-Ring Service Kit Replacement O-ring service kit includes O-rings to service all of the Drag Specialties EFI Fuel Lines Inc...

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£7.84 - £7.84
£7.84
£7.84 - £7.84
£7.84
£381.16 - £381.16
£381.16
£381.16 - £381.16
£381.16

Cobra 909 Twins Slip-on Muffler - Each - Chrome for Harley-Davidson Softail 2018-2021

In stock

Description909 Twins Slip-On Muffler Classic 4" styling Rolled steel tip NH series internals Aggressive sound Made in the USA Your existing muffler...

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£381.16 - £381.16
£381.16
£381.16 - £381.16
£381.16
£345.51 - £345.51
£345.51
£345.51 - £345.51
£345.51

Cobra 909 Twins Slip-on Muffler - Each - Black for Harley-Davidson Softail 2018-2021

In stock

Description909 Twins Slip-On Muffler Classic 4" styling Rolled steel tip NH series internals Aggressive sound Made in the USA Your existing muffler...

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£345.51 - £345.51
£345.51
£345.51 - £345.51
£345.51
Sold out
£270.75 - £270.75
£270.75
£270.75 - £270.75
£270.75

Cobra Air Cleaners Intake #606-0104-02

Out of stock

DescriptionAir Cleaners IntakeThe Cobra system consists of a laser-cut, formed steel cover, separate mounting ring, and all the fasteners, seals, b...

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£270.75 - £270.75
£270.75
£270.75 - £270.75
£270.75
Sold out
Top End Gasket Kit, 17033-83-A - Part #DS173251 - hogparts-uk.myshopify.com
£99.24 - £99.24
£99.24
£99.24 - £99.24
£99.24

James Gasket Top End Gasket Kit #17033-83-A

In stock

DescriptionTop End Gasket KitTop-quality gaskets, oil seals and O-rings necessary to rebuild an engineMade in the USAKit Includes: • 0.045" Head Ga...

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£99.24 - £99.24
£99.24
£99.24 - £99.24
£99.24
Engine Gasket Kit, 17029-70 - Part #DS173239 - Hogparts UK
£130.41 - £130.41
£130.41
£130.41 - £130.41
£130.41

James Gasket Complete Gasket Kit #17029-70

In stock

DescriptionComplete Gasket KitTop-quality gaskets, oil seals, and o-rings necessary to rebuild an XL/XG engineMade in the USAKit Includes: • 0.045"...

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£130.41 - £130.41
£130.41
£130.41 - £130.41
£130.41
Cylinder Head Gaskets, 16770-84-B - Part #DS173438 - Hogparts UK
£57.16 - £57.16
£57.16
£57.16 - £57.16
£57.16

James Gasket Replacement Cylinder Head and Compliance Fitting Gaskets #16770-84-B

In stock

DescriptionCylinder Head Gasket/O-RingsAll are top-quality genuine James gaskets and O-ringsMade in the USAThese are optional replacements for simi...

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£57.16 - £57.16
£57.16
£57.16 - £57.16
£57.16
Oil Seal Clutch Release Lever, 37101-84 - Part #DS174366 - hogparts-uk.myshopify.com
£5.77 - £5.77
£5.77
£5.77 - £5.77
£5.77

James Gasket #37101-84

In stock

DescriptionShifter Shaft SealReplacement Shifter Shaft SealsMade in the USASpecificationsMaterial : Rubber Covered MetalUnits : EachType : OilStyle...

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£5.77 - £5.77
£5.77
£5.77 - £5.77
£5.77
Gasket Starter Motor, 31488-81 - Part #DS174338 - Hogparts UK
£12.61 - £12.61
£12.61
£12.61 - £12.61
£12.61

James Gasket Replacement Starter Housing Gaskets #31488-81

In stock

DescriptionReplacement Starter Housing GasketsMade in the U.S.A.SpecificationsThickness Imperial : 0,030"Riding Style : StreetType : Starter Housin...

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£12.61 - £12.61
£12.61
£12.61 - £12.61
£12.61
Gasket Inspection Cover, 60567-90-DL - Part #78081027 - Hogparts UK
£9.77 - £9.77
£9.77
£9.77 - £9.77
£9.77

James Gasket Inspection Cover Seal Kit - Each, Primary, Metal / Molded Rubber for Harley-Davidson Touring, Softail, Dyna & FXR 1965-2006

In stock

DescriptionInspection Cover Seal Kit Genuine James gaskets and seals Made in the USA SpecificationsRiding Style : StreetFeatures : BeadedMaterial :...

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£9.77 - £9.77
£9.77
£9.77 - £9.77
£9.77
Oil Seal Starter Motor Shaft, 12053-A - Part #DS194089 - hogparts-uk.myshopify.com
£40.65 - £40.65
£40.65
£40.65 - £40.65
£40.65

James Gasket Starter Shaft Seal #12053-A

In stock

DescriptionStarter Shaft SealMade in the USASpecificationsRiding Style : StreetUnits : 5 PackType : OilApplication : Starter ShaftProduct Name : Se...

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£40.65 - £40.65
£40.65
£40.65 - £40.65
£40.65
Exhaust Stud Kit, SE-1 - Part #DS174743 - Hogparts UK
£23.56 - £23.56
£23.56
£23.56 - £23.56
£23.56

James Gasket Fire-Ring„¢ Exhaust Gasket Kit #SE-1

In stock

DescriptionFire-Ring™ Exhaust Gasket KitKit comes complete with genuine Fire-Ring™ exhaust gaskets, studs, lock washers and chrome nutsMade in the ...

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£23.56 - £23.56
£23.56
£23.56 - £23.56
£23.56
Rocker Cover Gasket Kit, 17033-99 - Part #DS173218 - hogparts-uk.myshopify.com
£83.89 - £83.89
£83.89
£83.89 - £83.89
£83.89

James Gasket Rocker Box Gasket Kit #17033-99

In stock

DescriptionRocker Box Gasket KitMade in the U.S.A.SpecificationsProduct Name : Gasket KitUnits : KitType : Rocker BoxRiding Style : StreetFitmentHa...

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£83.89 - £83.89
£83.89
£83.89 - £83.89
£83.89
Oil Seal 5Th Gear, 12035-B - Part #DS173536 - hogparts-uk.myshopify.com
£16.54 - £16.54
£16.54
£16.54 - £16.54
£16.54

James Gasket Main Drive Gear Seal Kit #12035-B

In stock

DescriptionMain Drive Gear Seal KitTop quality main drive gear shaft sealsSpecificationsRiding Style : StreetUnits : 5 PackProduct Name : SealAppli...

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£16.54 - £16.54
£16.54
£16.54 - £16.54
£16.54
Cylinder Base Gaskets Metal With Bead Front & Rear, 16777-94 - Part #DS174116 - Hogparts UK
£44.91 - £44.91
£44.91
£44.91 - £44.91
£44.91

James Gasket Cylinder Base Gaskets #16777-94

In stock

DescriptionMetal Base GasketsGenuine James Gasket base gaskets features a steel base with silicone beading on both sidesWill not become brittle or ...

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£44.91 - £44.91
£44.91
£44.91 - £44.91
£44.91
Sold out
£21.59 - £21.59
£21.59
£21.59 - £21.59
£21.59

MCS Shovel Rocker Box Oil Line Kit. Braided Stainless – 1966–1984 Shovelhead

Out of stock

Description With custom braided stainless steel oil lines. Complete kit with seals and fittings. Fitment 66-84 Shovelhead (NU) Product Details Br...

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£21.59 - £21.59
£21.59
£21.59 - £21.59
£21.59
Sold out
£35.67 - £35.67
£35.67
£35.67 - £35.67
£35.67

MCS Flush-Mount Mounting Bracket Set for 516509/516579 – 516509/516579 Fuel Tanks

Low stock

Description Optional mount bracket set for 516509/516579 Stretched Fat Billy and Stretched Eddy gas tank. Enables a flush mount to a custom frame. ...

View full details
£35.67 - £35.67
£35.67
£35.67 - £35.67
£35.67
£37.20 - £37.20
£37.20
£37.20 - £37.20
£37.20

MCS Replacement 1200cc B.t. Cast Piston. Std – 41-E78 1200cc/74" Knuckle; Pan; Shovel

Low stock

Description Standard 8:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. Note: Piston rings must b...

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£37.20 - £37.20
£37.20
£37.20 - £37.20
£37.20
£7.94 - £7.94
£7.94
£7.94 - £7.94
£7.94

MCS Adapter Oil Gauge Fitting, 45 Degrees. 1/8" Npt. Chrome – 1938–1999 Big Twin

Low stock

Description 1/8 NPT male to 1/8 NPT female threaded. Used as 45° adapter to give the rider a better viewing angle on the oil gauge while riding. Us...

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£7.94 - £7.94
£7.94
£7.94 - £7.94
£7.94
£10.40 - £10.40
£10.40
£10.40 - £10.40
£10.40

MCS Rocker Arm Shim Set Shovel .015" – 1966–1984 Shovelhead

Low stock

Description Rocker arm shim set Shovel .015" Fitment 66-84 Shovelhead (NU) Product Details Brand: MCS Category: MOTOR PARTS > ROCKER SHAFT SH...

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£10.40 - £10.40
£10.40
£10.40 - £10.40
£10.40
£30.85 - £30.85
£30.85
£30.85 - £30.85
£30.85

MCS Gas Cap Vented with Lock, Chrome – 1996–2018 H-D

Low stock

Description Chrome; vented; right side; right hand threaded. Includes 2 keys. Gas caps come with key hole cover. Fitment 96-18 H-D (NU) Product Det...

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£30.85 - £30.85
£30.85
£30.85 - £30.85
£30.85
£164.01 - £164.01
£164.01
£164.01 - £164.01
£164.01

MCS Flatside Gas Tank, 5 Gallon – 1984–1999 Softail; 1985–1986 Fxwg

Low stock

Description Stock style replacement gas tanks for 84-99 Softail; 85-86 FXWG models and custom frames that have the flatside mounting pattern. For u...

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£164.01 - £164.01
£164.01
£164.01 - £164.01
£164.01
£36.61 - £36.61
£36.61
£36.61 - £36.61
£36.61

MCS Evo Big Twin Tappet Block Cover Set. Chrome – 1984–1999 Evo Big Twin

In stock

Description Chrome plated stamped steel covers. Fits over the existing tappet guides to improve looks. Installation does not require disassembling ...

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£36.61 - £36.61
£36.61
£36.61 - £36.61
£36.61
Sold out
£11.53 - £11.53
£11.53
£11.53 - £11.53
£11.53

MCS Intake Clamps, Band Type – L1978–1984 Big Twin; L1978–1985 XL…

Out of stock

Description Philips screw; stainless Fitment L78-84 Big Twin; L78-85 XL Sportster (NU) Product Details Brand: MCS Category: INTAKE > INTAKE C...

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£11.53 - £11.53
£11.53
£11.53 - £11.53
£11.53
Sold out

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