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Engine - Gaskets & Kits

Explore gaskets & kits within the engine range, with products grouped for motorcycle servicing, repair and custom work. Available items span engine components and gaskets, seals and service parts, helping you compare parts intended for different jobs. For an accurate match, compare the product’s stated fitment and dimensions with your motorcycle or equipment.

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James Gaskets Cylinder Base Gaskets Fr/Rr. .031" Paper – 1957–1971 XL900

Out of stock

Description Front & rear. .031" thick fiber reinforced paper. Final crush .025". OEM replacement reference 16774-57. Fitment 57-71 XL900 (NU) P...

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£23.18
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James Gaskets Cylinder Base Gaskets Fr/Rr. .031" Paper – 1952–1956 K; KH Model Flatheads

Low stock

Description Front & rear. .031" thick fiber reinforced paper. Final crush .025". OEM replacement reference 16775-52. Fitment 52-56 K; KH model ...

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£23.18
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£23.18
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£15.93
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James Gaskets Cylinder Base Gasket Fr/Rr. .031" Paper – 1972–1985 XL1000

Low stock

Description Fits front & rear. .031" thick fiber reinforced paper. Final crush .025". OEM replacement reference 16774-72. Fitment 72-85 XL1000 ...

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£18.05
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James Gaskets Gasket Starter Shaft Housing. .031" Paper – 1967–1980 XL Sportster

Low stock

Description .031" fiber reinforced paper. OEM replacement reference 31471-67A. Fitment 67-80 XL Sportster (Excl. 70-E79 XLCH) (NU) Product Details ...

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£18.05
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£17.87
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James Gaskets Manifold Intake Seals. Blue Viton – 1984–2017 Big Twin; 1986–2022 XL…

Low stock

Description Blue Viton rubber. Used between manifold and cylinder head. Seal features a thin rubber lip that seals between the manifold sleeve face...

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£39.61
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James Gaskets Cam Cover Gaskets. .036" Paper/Steel Base/Silicone – 1970–1992 Big Twin

Low stock

Description .036" paper with a steel core and a dual layer silicone. OEM replacement reference 25225-70; 25225-70B; 25225-70C Fitment 70-92 Big Twi...

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£36.22
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James Gaskets Cam Cover Gaskets. .031" Paper / Silicone – 1970–1992 Big Twin

Low stock

Description .031" thick fiber reinforced paper with a silicone bead. OEM replacement reference 25225-70; 25225-70B; 25225-70C Fitment 70-92 Big Twi...

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£36.22
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£36.22
£35.86
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£35.86
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£36.22
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James Gaskets Cam Cover Gaskets. .031" Paper/Silicone – 1993–1999 Evo Big Twin

Low stock

Description .031" thick paper with a silicone bead. OEM replacement reference 25225-93; 25225-93A; 25225-93B Fitment 93-99 Evo Big Twin (NU) Produc...

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£36.22
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£36.22
£35.86
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£12.36
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James Gaskets Cam Cover Gasket. .036" Paper/Steel Base/Silicone – 1993–1999 Evo Big Twin

Low stock

Description .036" paper with a steel core and a dual layer silicone. OEM replacement reference 25225-93; 25225-93A; 25225-93B Fitment 93-99 Evo Big...

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James Gaskets Generator Mount Gasket – 1958–1969 FL; 58-E84 XL Sportster. with…

In stock

Description .031" thick paper. OEM replacement reference 30143-58. Fitment 58-69 FL; 58-E84 XL Sportster. With 2-brush generators (NU) Product Deta...

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James Gaskets Generator Mount Gasket – 1930–1957 FL; XL Sportster; 45" Flathead

Low stock

Description .031" thick paper. OEM replacement reference 30143-30; 1527-30. Fitment 30-57 FL; XL Sportster; 45" Flathead (NU) Product Details Bra...

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James Gaskets Gasket Starter Cover Plate. Cork – 1974–1978 XLH (Hitachi); 1979–1980 XL…

Low stock

Description Premium cork / rubber blend. OEM replacement reference 31461-70. Fitment 74-78 XLH (Hitachi); 79-80 XL Sportster (Prestolite) (NU) Prod...

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£36.44
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James Gaskets Gasket Derby Cover. .015" Paper – 1952–1970 K; XL Sportster; 1973 XR750

Low stock

Description .015" fiber reinforced paper. OEM replacement reference 37762-52. Fitment 52-70 K; XL Sportster; 1973 XR750 (NU) Product Details Bran...

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£36.44
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James Gaskets Gasket Primary Cover. .031" Paper – 1967–1976 XLH; 1970–1976 Xlch

Low stock

Description .031" thick fiber reinforced paper. OEM replacement reference 34955-67. Fitment 67-76 XLH; 70-76 XLCH (NU) Product Details Brand: Jam...

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James Gaskets Gasket Primary Cover. .020" Paper – 1967–1976 XLH; 1970–1976 Xlch

Low stock

Description .020" thick fiber reinforced paper. OEM replacement reference 34955-67. Fitment 67-76 XLH; 70-76 XLCH (NU) Product Details Brand: Jam...

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£26.43
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James Gaskets Jiffy Stand Bumper Pads – 1970–1986 4-Speed Big Twin; 1984–1988…

Low stock

Description Black rubber. Self adhesive bumper pads that prevents the side stand from damaging the primary cover. OEM replacement reference 50100-7...

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James Gaskets Oil Seal Transmission Mainshaft. Double Lip – 1941–1979 FL.; 71-E79 FX

Low stock

Description Metal OD. With inside and outside closed housing. Complete with 923136 (35231-36) cork washer. OEM replacement reference 35230-39. Fitm...

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James Gaskets Oil Seal Sprocket Shaft/Transmission Mainshaft – Transmission Mainshaft: 1952–1956 K; KH…

Low stock

Description OEM replacement reference 35151-52A. Fitment Transmission mainshaft: 52-56 K; KH; 57-E84 XL Sportster (NU). Engine sprocket shaft: 54-7...

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James Gaskets Shifter Shaft Oil Seal – 1952–1985 K; XL Sportster

In stock

Description OEM replacement reference 34035-52. Fitment 52-85 K; XL Sportster (NU) Product Details Brand: James Gaskets Category: TRANSMISSION/D...

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£20.72
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£11.14
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£11.14
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James Gaskets Generator Bearing End Gasket – 1930–1964 FL; FLH; 80"/74"/45" Ohv &…

Low stock

Description .020" thick paper. Bearing end. OEM replacement reference 31015-30; early 1642-30. Fitment 30-64 FL; FLH; 80"/74"/45" OHV & Flathea...

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£11.14
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James Gaskets Oil Seal. Generator End Cap – 1952–1969 FL; 1958–1981 XL Sportster

Low stock

Description OEM replacement reference 30145-46A; 1637-46. Fitment 52-69 FL; 58-81 XL Sportster (NU) Product Details Brand: James Gaskets Categor...

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James Gaskets Oil Pump End Cap O-Rings – 1992–1999 Evo Big Twin

Low stock

Description 2 used. Fits between lower end cap and oil pump cover. OEM replacement reference 11241. Fitment 92-99 Evo Big Twin (NU) Product Details...

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James Gaskets Oil Seal Oil Pump Drive Shaft – L1958–1976 XL Sportster; 1968–1999 Big…

Low stock

Description 1 used. Fits OEM & S&S standard cast and billet oil pumps (excl. S&S HVHP/High Volume High Pressure pumps). OEM replacement...

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£26.08
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James Gaskets Swingarm/Wheel Seal. Steel Od – Spoke or Cast Wheel Front: 1973–1983 FX…

Low stock

Description OEM replacement reference 47519-72 Fitment Spoke or cast wheel front: 73-83 FX; FXR; XL Sportster. Cast wheel rear: 73-83 FX; FXR; XL S...

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