Skip to content
Find us Hours of Business Email Us Shipping Cookie policy Returns Terms & Conditions Privacy Policy Refunds

Pre-Evo – Engine & Gaskets

Engine components, gaskets, seals and related parts for Harley-Davidson Pre-Evolution classic models.

Filters

Save 1% Save %
£119.53
£119.53 - £119.53
£119.53
£117.87
£117.87 - £117.87
£117.87

Gardner-Westcott Head Bolt Kit, Acorn – 57-E73 XL Sportster

Only 2 left!

Gardner-Westcott Head Bolt Kit, Acorn – 57-E73 XL Sportster Chrome; 900cc models; incl. washers Fitment 57-E73 XL Sportster (NU) Product Details ...

View full details
£119.53
£119.53 - £119.53
£119.53
£117.87
£117.87 - £117.87
£117.87
Save 1% Save %
Save 5% Save %
£12.72
£12.72 - £12.72
£12.72
£12.11
£12.11 - £12.11
£12.11

MCS Steel Breather Valve Spacers .130" – 50-E77 Big Twin

Only 2 left!

MCS Steel Breather Valve Spacers .130" – 50-E77 Big Twin Use with steel breather valves only. Small hole. Used to set correct end play. Note: Steel...

View full details
£12.72
£12.72 - £12.72
£12.72
£12.11
£12.11 - £12.11
£12.11
Save 5% Save %
Sold out
£10.38
£10.38 - £10.38
£10.38
£9.88
£9.88 - £9.88
£9.88

MCS Bushing, Idler Gear – 57-E84 XL Sportster

Out of stock

MCS Bushing, Idler Gear – 57-E84 XL Sportster 2 used Fitment 57-E84 XL Sportster (NU) Product Details Brand: MCS Category: MOTOR PARTS > CAM ...

View full details
£10.38
£10.38 - £10.38
£10.38
£9.88
£9.88 - £9.88
£9.88
Sold out
Save 5% Save %
£32.61
£32.61 - £32.61
£32.61
£31.05
£31.05 - £31.05
£31.05

MCS Camshaft Bushing, Outer. Std – 1957–1990 XL Sportster; L1959–1973 45"…

Only 3 left!

MCS Camshaft Bushing, Outer. Std – 1957–1990 XL Sportster; L1959–1973 45"… For #2 cam. Used in the cam cover. Tech tip: Cam cover bushings are coun...

View full details
£32.61
£32.61 - £32.61
£32.61
£31.05
£31.05 - £31.05
£31.05
Save 5% Save %
Save 5% Save %
£32.61
£32.61 - £32.61
£32.61
£31.05
£31.05 - £31.05
£31.05

MCS Camshaft Bushing, Inner. 36-57 OHV – 1936–1957 OHV FL

Only 3 left!

MCS Camshaft Bushing, Inner. 36-57 OHV – 1936–1957 OHV FL Camshaft bushing, inner. 36-57 OHV Fitment 36-57 OHV FL (NU) Product Details Brand: MCS...

View full details
£32.61
£32.61 - £32.61
£32.61
£31.05
£31.05 - £31.05
£31.05
Save 5% Save %
Save 5% Save %
£32.61
£32.61 - £32.61
£32.61
£31.05
£31.05 - £31.05
£31.05

MCS Camshaft Bushing, Inner. 37-48 SV – 1937–1948 74/80" SV (4 USED)

Only 2 left!

MCS Camshaft Bushing, Inner. 37-48 SV – 1937–1948 74/80" SV (4 USED) Camshaft bushing, inner. 37-48 SV Fitment 37-48 74/80" SV (NU) (4 USED) Produc...

View full details
£32.61
£32.61 - £32.61
£32.61
£31.05
£31.05 - £31.05
£31.05
Save 5% Save %
Save 5% Save %
£12.14
£12.14 - £12.14
£12.14
£11.56
£11.56 - £11.56
£11.56

MCS Pinion Shaft Bushing. Std. Size – 1957–1976 XL Sportster

Only 3 left!

MCS Pinion Shaft Bushing. Std. Size – 1957–1976 XL Sportster Bronze. Used in cam cover. OEM style replacement for 25593-57. Fitment 57-76 XL Sports...

View full details
£12.14
£12.14 - £12.14
£12.14
£11.56
£11.56 - £11.56
£11.56
Save 5% Save %
Save 5% Save %
£20.02
£20.02 - £20.02
£20.02
£19.07
£19.07 - £19.07
£19.07

MCS Chain Oiler Adj. Screw (Slotted) – 1933–1964; 68-E83 Big Twin; 1970–1976 XL…

Only 1 left!

MCS Chain Oiler Adj. Screw (Slotted) – 1933–1964; 68-E83 Big Twin; 1970–1976 XL… Chain oiler adj. screw (slotted) Fitment 33-64; 68-E83 Big Twin; 7...

View full details
£20.02
£20.02 - £20.02
£20.02
£19.07
£19.07 - £19.07
£19.07
Save 5% Save %
£14.53 - £14.53
£14.53
£16.27
£16.27 - £16.27
£16.27

MCS Shaft, Idler Gear – 1936–1969 Big Twin

Only 3 left!

MCS Shaft, Idler Gear – 1936–1969 Big Twin Stock style replacement part for OEM 25791-36. Fitment 36-69 Big Twin (NU) Product Details Brand: MCS ...

View full details
£14.53 - £14.53
£14.53
£16.27
£16.27 - £16.27
£16.27
Save 8% Save %
£47.21
£47.21 - £47.21
£47.21
£43.45
£43.45 - £43.45
£43.45

Gardner-Westcott Rocker Box Top Bolt Kit. Buttonhead, Chrome – 1984–1999 Big Twin; 1986–2022 XL…

Only 2 left!

Gardner-Westcott Rocker Box Top Bolt Kit. Buttonhead, Chrome – 1984–1999 Big Twin; 1986–2022 XL… Chrome plated buttonhead bolts. Includes washers. ...

View full details
£47.21
£47.21 - £47.21
£47.21
£43.45
£43.45 - £43.45
£43.45
Save 8% Save %
Save 8% Save %
£49.29
£49.29 - £49.29
£49.29
£45.36
£45.36 - £45.36
£45.36

Gardner-Westcott Shovel Rocker Box Bolt Kit. Allen, Chrome – 66-E81 Shovelhead

Only 2 left!

Gardner-Westcott Shovel Rocker Box Bolt Kit. Allen, Chrome – 66-E81 Shovelhead Chrome allenhead (socket head) bolts. Requires the removal of the OE...

View full details
£49.29
£49.29 - £49.29
£49.29
£45.36
£45.36 - £45.36
£45.36
Save 8% Save %
Save 8% Save %
£35.64
£35.64 - £35.64
£35.64
£32.80
£32.80 - £32.80
£32.80

Gardner-Westcott Rocker Shaft End Plug Set. OEM Style. Chrome – 1971–1984 Shovelhead; 1971–1985 XL…

Only 1 left!

Gardner-Westcott Rocker Shaft End Plug Set. OEM Style. Chrome – 1971–1984 Shovelhead; 1971–1985 XL… Chrome plated. OEM style reproduction buttonhea...

View full details
£35.64
£35.64 - £35.64
£35.64
£32.80
£32.80 - £32.80
£32.80
Save 8% Save %
Sold out
£18.68
£18.68 - £18.68
£18.68
£16.64
£16.64 - £16.64
£16.64

Gardner-Westcott Tappet Block Mount Kit. Flathead Allen, Chrome – L1976–1984 Big Twin. With 36-E76 Style…

Out of stock

Gardner-Westcott Tappet Block Mount Kit. Flathead Allen, Chrome – L1976–1984 Big Twin. With 36-E76 Style… 1/4"-20 threaded bolts. Big Twin conversi...

View full details
£18.68
£18.68 - £18.68
£18.68
£16.64
£16.64 - £16.64
£16.64
Sold out
Sold out
£7.12
£7.12 - £7.12
£7.12
£6.14
£6.14 - £6.14
£6.14

Gardner-Westcott Tappet Block Mount Kit. Allenhead, Chrome – 1957–1990 XL Sportster

Out of stock

Gardner-Westcott Tappet Block Mount Kit. Allenhead, Chrome – 1957–1990 XL Sportster GW, tappet block mount kit. Allenhead, chrome Fitment 57-90 XL ...

View full details
£7.12
£7.12 - £7.12
£7.12
£6.14
£6.14 - £6.14
£6.14
Sold out
Save 8% Save %
£60.45
£60.45 - £60.45
£60.45
£55.64
£55.64 - £55.64
£55.64

Gardner-Westcott Big Twin Side Cover Mount Kit, SS Allen – 2000–2006 Softail

Only 1 left!

Gardner-Westcott Big Twin Side Cover Mount Kit, SS Allen – 2000–2006 Softail Cam; primary; derby; inspection; transmission end covers. Fitment 00-0...

View full details
£60.45
£60.45 - £60.45
£60.45
£55.64
£55.64 - £55.64
£55.64
Save 8% Save %
Sold out
£34.19
£34.19 - £34.19
£34.19
£31.46
£31.46 - £31.46
£31.46

Gardner-Westcott Cam Cover Mount Kit, Chr. Allen – 1999–2017 Twin Cam A/B

Out of stock

Gardner-Westcott Cam Cover Mount Kit, Chr. Allen – 1999–2017 Twin Cam A/B Cam cover mount kit, chr. allen Fitment 99-17 Twin Cam A/B (NU) Product D...

View full details
£34.19
£34.19 - £34.19
£34.19
£31.46
£31.46 - £31.46
£31.46
Sold out
Save 11% Save %
£21.81
£21.81 - £21.81
£21.81
£19.42
£19.42 - £19.42
£19.42

Gardner-Westcott Cam Cover Screw Kit, Chr. Allen – 1987–1999 Softail; FLT/Touring

Only 1 left!

Gardner-Westcott Cam Cover Screw Kit, Chr. Allen – 1987–1999 Softail; FLT/Touring Cam cover screw kit, chr. allen Fitment 87-99 Softail; FLT/Tourin...

View full details
£21.81
£21.81 - £21.81
£21.81
£19.42
£19.42 - £19.42
£19.42
Save 11% Save %
S&S Cycle 585G Gear Drive Camshaft Kit for Various Various Harley-Davidson Motorcycles (See Fitment List)
Save 8% Save %
£1,107.29
£1,107.29 - £1,107.29
£1,107.29
£1,014.03
£1,014.03 - £1,014.03
£1,014.03

S&S Cycle 585G Gear Drive Camshaft Kit for Various Various Harley-Davidson Motorcycles (See Fitment List) #33-5179

in stock

Description585G Gear Drive Camshaft KitDesigned for 88/96/103/110 cubic-inch engines with compression ratios from 10.0:1 to 10.5:1Reverses the rear...

View full details
£1,107.29
£1,107.29 - £1,107.29
£1,107.29
£1,014.03
£1,014.03 - £1,014.03
£1,014.03
Save 8% Save %
S&S Cycle 570G Gear Drive Camshaft Kit for Various Various Harley-Davidson Motorcycles (See Fitment List)
Save 8% Save %
£1,107.29
£1,107.29 - £1,107.29
£1,107.29
£1,014.03
£1,014.03 - £1,014.03
£1,014.03

S&S Cycle 570G Gear Drive Camshaft Kit for Various Various Harley-Davidson Motorcycles (See Fitment List) #33-5178

Only 4 left!

Description570G Camshaft KitDesigned for 88" to 103" CID engines with compression ratios between 9:1 and 10:1Strongest from 3200-3700 rpmIncreases ...

View full details
£1,107.29
£1,107.29 - £1,107.29
£1,107.29
£1,014.03
£1,014.03 - £1,014.03
£1,014.03
Save 8% Save %
S&S Cycle 510G Gear Drive Camshaft Kit for Various Various Harley-Davidson Motorcycles (See Fitment List)
Sold out
£1,063.61
£1,063.61 - £1,063.61
£1,063.61
£974.42
£974.42 - £974.42
£974.42

S&S Cycle 510G Gear Drive Camshaft Kit for Various Various Harley-Davidson Motorcycles (See Fitment List) #33-5177

Out of stock

Description510G Camshaft KitCams designed as bolt-in cam for 88", 95", 96" and 103" engines with compression ratios below 9.7:1Kit includes camshaf...

View full details
£1,063.61
£1,063.61 - £1,063.61
£1,063.61
£974.42
£974.42 - £974.42
£974.42
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...

View full details
£72.02 - £72.02
£72.02
£73.12
£73.12 - £73.12
£73.12
Save 14% Save %
£10.50
£10.50 - £10.50
£10.50
£9.06
£9.06 - £9.06
£9.06

Gardner-Westcott Big Twin Cam Cover Mount Kit, Allen – 1970–1986 Big Twin

Only 3 left!

Gardner-Westcott Big Twin Cam Cover Mount Kit, Allen – 1970–1986 Big Twin Big Twin cam cover mount kit, allen Fitment 70-86 Big Twin (NU) Product D...

View full details
£10.50
£10.50 - £10.50
£10.50
£9.06
£9.06 - £9.06
£9.06
Save 14% Save %
Sold out
£22.60
£22.60 - £22.60
£22.60
£20.13
£20.13 - £20.13
£20.13

Gardner-Westcott Oil Pump Mount Kit, Allen – 1991–1997 XL Sportster

Out of stock

Gardner-Westcott Oil Pump Mount Kit, Allen – 1991–1997 XL Sportster Oil pump mount kit, allen Fitment 91-97 XL Sportster (NU) Product Details Bra...

View full details
£22.60
£22.60 - £22.60
£22.60
£20.13
£20.13 - £20.13
£20.13
Sold out
Sold out
£23.53
£23.53 - £23.53
£23.53
£20.96
£20.96 - £20.96
£20.96

Gardner-Westcott Oil Pump Mount Kit – 1977–1990 XL Sportster

Out of stock

Gardner-Westcott Oil Pump Mount Kit – 1977–1990 XL Sportster Chrome; allen heads Fitment 77-90 XL Sportster (NU) Product Details Brand: Gardner-W...

View full details
£23.53
£23.53 - £23.53
£23.53
£20.96
£20.96 - £20.96
£20.96
Sold out

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare