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Pre-Evo – Engine & Gaskets

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

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Sonnax Pinion Shaft Bearing. Blue – 1987–1999 Big Twin

Only 3 left!

Sonnax Pinion Shaft Bearing. Blue – 1987–1999 Big Twin Sold with the OEM color code. Replacement late style right side crankcase bearing. Note: Wil...

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£36.25
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£34.51
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MCS Pinion Shaft Bearing. Green – 1987–1999 Big Twin

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MCS Pinion Shaft Bearing. Green – 1987–1999 Big Twin Sold with the OEM color code. Replacement late style right side crankcase bearing. (Torrington...

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£618.49 - £618.49
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£632.47
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Jims Forceflow Cylinder Head Cooler. Silver – 1999–2017 Twin Cam; Custom Applications

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Jims Forceflow Cylinder Head Cooler. Silver – 1999–2017 Twin Cam; Custom Applications The Forceflow cylinder head cooler incorporates a high power ...

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£632.47
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£632.47
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£603.03 - £603.03
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£616.66
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Jims Forceflow Cylinder Head Cooler. Black – 1999–2017 Twin Cam; Custom Applications

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Jims Forceflow Cylinder Head Cooler. Black – 1999–2017 Twin Cam; Custom Applications The Forceflow cylinder head cooler incorporates a high power f...

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£616.66
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£43.18
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£43.18
£42.57
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£42.57

Jims Camshaft Needle Bearing. Inner – 2006–2017 Dyna; 2007–2025 Softail…

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Jims Camshaft Needle Bearing. Inner – 2006–2017 Dyna; 2007–2025 Softail… Full needle style bearing. 2 bearings used for Twin Cam. 1 bearing used fo...

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£42.57
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£27.17
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£26.79
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£26.79

Jims Camshaft Needle Bearing. Inner – L1958–1990 XL Sportster; 1987–1990 Buell

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Jims Camshaft Needle Bearing. Inner – L1958–1990 XL Sportster; 1987–1990 Buell Full needle. 4 used. OEM replacement reference 9057 Fitment L58-90 X...

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£26.79
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£167.85
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£167.85
£165.50
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£165.50

Jims Pinion Shaft Bushing. Std. Size – 1939–1973 45" Flathead

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Jims Pinion Shaft Bushing. Std. Size – 1939–1973 45" Flathead Steel. In crankcase. Fitment 39-73 45" Flathead (NU) Product Details Brand: Jims C...

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£213.14 - £213.14
£213.14
£214.77
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£214.77

Jims Pinion Gear 54-77. Green – 54-E77 Big Twin (Average)

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Jims Pinion Gear 54-77. Green – 54-E77 Big Twin (Average) Gear size over .105" pins: 1.4470-1.4465". Cam gear over .105" pins: 2.7685-2.769". Made ...

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£214.77
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£214.77
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£166.08
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£163.76
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Jims Sprocket Shaft Crankcase Bushing. STD – 1939–1973 45" SV. OD 1.753"

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Jims Sprocket Shaft Crankcase Bushing. STD – 1939–1973 45" SV. OD 1.753" Left side crankcase bearing race. Standard size is 1.753" OD. Fitment 39-7...

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£163.76
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£163.76
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£18.18
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£18.18
£17.31
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£17.31

MCS Dowel Pin, Cylinder/Transm. Trap Door – Cylinder Head & Case: 1984–1999 EVO Big…

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MCS Dowel Pin, Cylinder/Transm. Trap Door – Cylinder Head & Case: 1984–1999 EVO Big… Dowel pin, cylinder/transm. trap door Fitment Cylinder hea...

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£17.31
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£17.31
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£142.56
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£142.56
£140.58
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£140.58

Gardner-Westcott Crankcase Bolt Kit, Hex – 1970–1999 S&S Big Twin Cases ONLY

Out of stock

Gardner-Westcott Crankcase Bolt Kit, Hex – 1970–1999 S&S Big Twin Cases ONLY Mounts crankcase halves together. Kits come complete with washers;...

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£142.56
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£140.58
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£140.58
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£18.05
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£18.05
£15.10
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£15.10

Gardner-Westcott Stud, Feed Pump – 1937–1973 45" SV (OIL PUMP; 3 USED)…

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Gardner-Westcott Stud, Feed Pump – 1937–1973 45" SV (OIL PUMP; 3 USED)… 1/4-24 x 1 3/8 Fitment 37-73 45" SV (NU) (OIL PUMP; 3 USED) (MOUNTS IN CRAN...

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£15.10
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£15.10
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£7.03
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£7.03
£6.70
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£6.70

KB Performance Piston Keith Black, Replacement Piston Pin .792" – All KB Pistons

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KB Performance Piston Keith Black, Replacement Piston Pin .792" – All KB Pistons Standard replacement wrist pin for KB pistons. Note: See 944731 fo...

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£7.03
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£7.03
£6.70
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£6.70
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£7.22
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£7.22
£6.88
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£6.88

MCS Bushing, Oil Pump Cover – 1977–1990 XL Sportster

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MCS Bushing, Oil Pump Cover – 1977–1990 XL Sportster Bushing, oil pump cover Fitment 77-90 XL Sportster (NU) Product Details Brand: MCS Category...

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£7.22
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£7.22
£6.88
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£6.88
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£9.05
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£8.61
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£8.61

MCS Relief Valve, Oil Pump – L54-E82 Big Twin

Only 3 left!

MCS Relief Valve, Oil Pump – L54-E82 Big Twin Relief valve, oil pump Fitment L54-E82 Big Twin (NU) Product Details Brand: MCS Category: MOTOR PA...

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£9.05
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£9.05
£8.61
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£8.61
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£122.93
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£122.93
£121.22
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£121.22

Gardner-Westcott Crankcase Bolt Kit, Acorn – 2000–2017 Softail

Only 2 left!

Gardner-Westcott Crankcase Bolt Kit, Acorn – 2000–2017 Softail Mounts crankcase halves together. Kits come complete with washers; studs and nuts wh...

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£122.93
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£122.93
£121.22
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£121.22
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£100.41
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£100.41
£95.60
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£95.60

Gardner-Westcott Crankcase Bolt Kit, Acorn – 1979–1982 Big Twin

Only 2 left!

Gardner-Westcott Crankcase Bolt Kit, Acorn – 1979–1982 Big Twin Mounts crankcase halves together. Kits come complete with washers; studs and nuts w...

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£100.41
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£100.41
£95.60
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£95.60
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£21.84
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£21.84
£20.79
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£20.79

MCS Driven Gear, Feed. Oil Pump – 1954–1962 & 1972–1976 XL Sportster

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MCS Driven Gear, Feed. Oil Pump – 1954–1962 & 1972–1976 XL Sportster Driven gear, feed. oil pump Fitment 54-62 & 72-76 XL Sportster (NU) Pr...

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£21.84
£20.79
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£20.79
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£37.48
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£37.48
£37.02
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£37.02

Colony Inner Pushrod Cover Tube Set. Zinc – 1999–2017 Twin Cam; 2017–2025 M8

Out of stock

Colony Inner Pushrod Cover Tube Set. Zinc – 1999–2017 Twin Cam; 2017–2025 M8 OEM style reproduction zinc plated inner (upper) pushrod cover tubes. ...

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£37.02
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£37.02
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£7.64
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£7.64
£7.02
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£7.02

Colony Oil Pump & Crankcase – 1981–1999 Big Twin

Only 1 left!

Colony Oil Pump & Crankcase – 1981–1999 Big Twin Zinc plated. Reproduction of the OEM round slotted style. Fits oil screen; check valve and rel...

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£7.02
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£7.02
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£10.70
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£10.70
£9.83
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£9.83

Colony Oil Pump Relief Valve – 1954–1967 Big Twin

Only 2 left!

Colony Oil Pump Relief Valve – 1954–1967 Big Twin Zinc; OEM reproduction bypass valve; incl. washer Fitment 54-67 Big Twin (NU) Product Details B...

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£10.70
£9.83
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£9.83
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£7.64
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£7.02
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Colony Oil Screen Crankcase – 1970–1980 Big Twin

Only 2 left!

Colony Oil Screen Crankcase – 1970–1980 Big Twin Zinc; OEM reproduction Fitment 70-80 Big Twin (NU) Product Details Brand: Colony Category: MOTO...

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£7.02
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£7.02
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£10.70
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£10.70
£9.83
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£9.83

Colony OEM Style Slotted Plug Oil Screen Crankcase. Zinc – 1966–1969 Big Twin

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Colony OEM Style Slotted Plug Oil Screen Crankcase. Zinc – 1966–1969 Big Twin OEM 655 reproduction slotted style plug. With 62702-52 brass gasket. ...

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£9.83
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£9.83
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£10.70
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Colony OEM Style Slotted Plug Oil Screen Crankcase. Zinc – 1952–1965 Big Twin

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Colony OEM Style Slotted Plug Oil Screen Crankcase. Zinc – 1952–1965 Big Twin Zinc plated reproduction style. Repl. 24987-52 plug and 24994 copper ...

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£9.83
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£9.83
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