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Engine Parts for Ironhead Sportster

Engine parts and gaskets for Harley-Davidson Ironhead Sportster models from 1985 and earlier. Check each product's fitment details for the applicable models and years.

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MCS Replacement Cylinder 1000cc Sportster, Front – L1973–1985 (61") XL1000
£248.60 - £248.60
£248.60
£248.60 - £248.60
£248.60

MCS Replacement Cylinder 900cc Sportster, Rear – 1958–1971 55" (900cc) XLH; Xlch

Low stock

Description Black painted stock replacement cast iron cylinder. Stock 3" bore. Repl. 16465-58A. Note: Cylinders must be finish bored and honed to f...

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£248.60 - £248.60
£248.60
£248.60 - £248.60
£248.60
£30.10 - £30.10
£30.10
£30.10 - £30.10
£30.10

MCS Replacement XL1000 Cast Piston. +.060" – 1972–1985 XL1000

Low stock

Description Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. Note: Piston rings must b...

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£30.10 - £30.10
£30.10
£30.10 - £30.10
£30.10
Eastern 53-84 Tappet Assembly. Standard Size – 1953–1965 Panhead; 1966–1984 Shovelhead
£86.49 - £86.49
£86.49
£86.49 - £86.49
£86.49

MCS 53-84 Tappet Assembly. +.010" – 1953–1965 Panhead; 1966–1984 Shovelhead

Low stock

Description Complete with roller. OEM style oversized reproduction lifter. Note: Hydraulic unit must be purchased separately. Fitment 53-65 Panhead...

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£86.49 - £86.49
£86.49
£86.49 - £86.49
£86.49
Jims Sprocket Shaft. L81-85 XL – L1981–1985 XL Sportster
£103.80 - £103.80
£103.80
£103.80 - £103.80
£103.80

MCS Sprocket Shaft, L81-85 Sportster – L1981–1985 XL Sportster

Low stock

Description OEM style replacement. Sprocket shaft does not have a keyway; like OEM. FitmentL81-85 XL Sportster (NU)Product Details Brand: MCS Ca...

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£103.80 - £103.80
£103.80
£103.80 - £103.80
£103.80
MCS Replacement XL 900cc Cast Piston. Std – 1957–1971 XL900
£26.08 - £26.08
£26.08
£26.08 - £26.08
£26.08

MCS Replacement XL 900cc Cast Piston. +.040" – 1957–1971 XL900

Low stock

Description Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. Note: Piston rings must b...

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£26.08 - £26.08
£26.08
£26.08 - £26.08
£26.08
Sold out
£22.64 - £22.64
£22.64
£22.64 - £22.64
£22.64

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

Out of stock

Description Feed gear, idler. oil pump Fitment54-62 & 72-76 XL Sportster (NU)Product Details Brand: MCS Category: MOTOR PARTS > OIL PUMP ...

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£22.64 - £22.64
£22.64
£22.64 - £22.64
£22.64
Sold out
£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16

MCS Washer, Headbolt. Zinc – 41-E77 Big Twin (10 Used on One Engine)

Low stock

Description 7/16" ID x 3/4" OD x 1/8" thick Fitment41-E77 Big Twin (10 used on one engine)Product Details Brand: MCS Category: MOTOR PARTS > ...

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£12.16 - £12.16
£12.16
£12.16 - £12.16
£12.16
£13.89 - £13.89
£13.89
£13.89 - £13.89
£13.89

MCS Sprocket Shaft Bearing Spacer Shim .114" – 1977–2003 XL Sportster

Low stock

Description Used to correct pre-load on the sprocket shaft bearing. Note: See 965410 for 9-piece shim assortment with .098" to .112" thick shims. F...

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£13.89 - £13.89
£13.89
£13.89 - £13.89
£13.89
£10.40 - £10.40
£10.40
£10.40 - £10.40
£10.40

MCS Spring, Check Valve Oil Pump – 57-E72 XL Sportster

Low stock

Description Spring, check valve oil pump Fitment57-E72 XL Sportster (NU)Product Details Brand: MCS Category: MOTOR PARTS > OIL PUMP PARTS Un...

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£10.40 - £10.40
£10.40
£10.40 - £10.40
£10.40
£136.10 - £136.10
£136.10
£136.10 - £136.10
£136.10

MCS Sprocket Shaft Bearing Assembly – 1952–1976 K; XL Sportster

Low stock

Description Sprocket shaft bearing assembly Fitment52-76 K, XL Sportster (NU)Product Details Brand: MCS Category: MOTOR PARTS > SPROCKET SHAF...

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£136.10 - £136.10
£136.10
£136.10 - £136.10
£136.10
£200.23 - £200.23
£200.23
£200.23 - £200.23
£200.23

MCS Cylinder Sleeve. 3.188" Bore – L1973–1985 61" XL1000

Low stock

Description 3.188" stock bore. Cylinder liners are used to save stock cylinders. Note: In any and all applications the technician must be able to j...

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£200.23 - £200.23
£200.23
£200.23 - £200.23
£200.23
Sold out
£31.18 - £31.18
£31.18
£31.18 - £31.18
£31.18

MCS Lower Valve Spring Collar Set. Steel. Std – 57-E81 XL Sportster

Out of stock

Description OEM style replacement steel lower collars for use in OEM applications. USA made. Repl. 18220-57. Fitment57-E81 XL Sportster (NU)Product...

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£31.18 - £31.18
£31.18
£31.18 - £31.18
£31.18
Sold out
£15.83 - £15.83
£15.83
£15.83 - £15.83
£15.83

MCS Inner Pushrod Cover Tube Set – L1979–1984 Shovelhead; 1984–1999 Evo Big…

Low stock

Description Zinc plated steel. For use with o-ring style seals. OEM style reproduction. Inner (upper) pushrod cover tubes that fit behind the clip ...

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£15.83 - £15.83
£15.83
£15.83 - £15.83
£15.83
£76.33 - £76.33
£76.33
£76.33 - £76.33
£76.33

MCS Drive Gear Shaft, Oil Pump – 1977–1990 XL Sportster (1 Used)

Low stock

Description Drive gear shaft, oil pump Fitment77-90 XL Sportster (NU) (1 used)Product Details Brand: MCS Category: MOTOR PARTS > OIL PUMP PAR...

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£76.33 - £76.33
£76.33
£76.33 - £76.33
£76.33
£31.18 - £31.18
£31.18
£31.18 - £31.18
£31.18

MCS Lower Valve Spring Collar Set. Steel. Std – L81-E83 XL Sportster

Low stock

Description Glide style; chrome cover incl. mounting hardware. OEM replacement reference 71800-61A FitmentL81-E83 XL Sportster (NU)Product Details ...

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£31.18 - £31.18
£31.18
£31.18 - £31.18
£31.18
£124.59 - £124.59
£124.59
£124.59 - £124.59
£124.59

MCS K Model/Sportster Breather Valve, with Gear – 1956–1959 KH; XL Sportster

Low stock

Description OEM style replacement. USA made. Fitment56-59 KH, XL Sportster (NU)Product Details Brand: MCS Category: MOTOR PARTS > BREATHER VA...

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£124.59 - £124.59
£124.59
£124.59 - £124.59
£124.59
£44.61 - £44.61
£44.61
£44.61 - £44.61
£44.61

MCS Replacement XL1000 Cast Piston. Std – 1972–1985 XL1000

Low stock

Description Standard 9:1 compression ratio. Perfect for a stock rebuild. Piston includes the wristpin and wristpin clips. Note: Piston rings must b...

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£44.61 - £44.61
£44.61
£44.61 - £44.61
£44.61
£25.97 - £25.97
£25.97
£25.97 - £25.97
£25.97

MCS Scavenger Pump Screen – 52-E73 XL Sportster (Breather Valve…

Low stock

Description Scavenger pump screen Fitment52-E73 XL Sportster (NU) (breather valve screen)Product Details Brand: MCS Category: MOTOR PARTS > O...

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£25.97 - £25.97
£25.97
£25.97 - £25.97
£25.97
£13.89 - £13.89
£13.89
£13.89 - £13.89
£13.89

MCS Spring, Pushrod Cover / Keeper – 1936–2025 Big Twin; 1957–1990 XL…

Low stock

Description OEM style reproduction. OEM replacement reference 17947-36. Fitment 36-25 Big Twin (excl. Flatheads) 57-90 (NU) XL Sportster Product De...

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£13.89 - £13.89
£13.89
£13.89 - £13.89
£13.89
£25.97 - £25.97
£25.97
£25.97 - £25.97
£25.97

MCS Flywheel Thrust Washer Set, Bronze – 1957–1971 XL Sportster

Low stock

Description For use with aluminum retainers; fits between connecting rods and flywheels. Repl. 23972-57A. Fitment57-71 XL Sportster (NU)Product Det...

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£25.97 - £25.97
£25.97
£25.97 - £25.97
£25.97
£124.59 - £124.59
£124.59
£124.59 - £124.59
£124.59

MCS Sportster Breather Valve, with Gear – 1960–1971 XL Sportster

Low stock

Description OEM style replacement. USA made. Fitment60-71 XL Sportster (NU)Product Details Brand: MCS Category: MOTOR PARTS > BREATHER VALVES...

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£124.59 - £124.59
£124.59
£124.59 - £124.59
£124.59
£6.97 - £6.97
£6.97
£6.97 - £6.97
£6.97

MCS Flywheel Thrust Washer Set, Bronze – L1970–1999 B.t; L79-E86 XL Sportster

In stock

Description For use with aluminum retainers; fits between connecting rods and flywheels. Approx. dimensions: 1.415" ID x 2.329" OD x .065" thick. O...

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£6.97 - £6.97
£6.97
£6.97 - £6.97
£6.97
£58.89 - £58.89
£58.89
£58.89 - £58.89
£58.89

MCS Sprocket Shaft Extension Only – L1974–1976 XL Sportster

Low stock

Description Sprocket shaft extension only FitmentL74-76 XL Sportster (NU)Product Details Brand: MCS Category: MOTOR PARTS > SPROCKET SHAFTS E...

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£58.89 - £58.89
£58.89
£58.89 - £58.89
£58.89
£4.42 - £4.42
£4.42
£4.42 - £4.42
£4.42

MCS Lock Plate, Sprocket & Pinion Shaft – 36-E81 Big Twin; 52-E81 XL Sportster

Low stock

Description Small Fitment 36-E81 Big Twin 52-E81 XL Sportster (NU) Product Details Brand: MCS Category: MOTOR PARTS > SPROCKET SHAFTS PARTS ...

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£4.42 - £4.42
£4.42
£4.42 - £4.42
£4.42

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