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Dyna – Engine & Gaskets

Browse engine & gaskets selected for Harley-Davidson Dyna motorcycles. Available items span engine components and gaskets, seals and service parts, helping you compare parts intended for different jobs. Confirm model coverage, key measurements and any supporting parts required on the individual listing.

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Cometic Cylinder Head Gasket Set. 4-1/8" .030" MLS – 1999–2017 Twin Cam with 4-1/8" Big Bore…

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Cometic Cylinder Head Gasket Set. 4-1/8" .030" MLS – 1999–2017 Twin Cam with 4-1/8" Big Bore… .030" thick MLS (Multi Layer Steel). Consists of a to...

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Cometic Cylinder Head Gasket Set. 3-3/4" .040" MLS – 1984–1999 Evo Big Twin

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Cometic Cylinder Head Gasket Set. 3-3/4" .040" MLS – 1984–1999 Evo Big Twin .040" thick MLS (Multi Layer Steel). Consists of a top and bottom layer...

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Cometic Cylinder Head Gasket Set. 4-1/8" .040" MLS – 1999–2017 Twin Cam with 4-1/8" Big Bore…

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Cometic Cylinder Head Gasket Set. 4-1/8" .040" MLS – 1999–2017 Twin Cam with 4-1/8" Big Bore… .040" thick MLS (Multi Layer Steel). Consists of a to...

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£74.00
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Cometic Cylinder Head. 3.5" Bore .060" MLS – 1984–1999 Big Twin; 1988–2022 XL…

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Cometic Cylinder Head. 3.5" Bore .060" MLS – 1984–1999 Big Twin; 1988–2022 XL… .060" thick MLS (Multi Layer Steel). Consists of a top and bottom la...

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£105.29
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Cometic Builders Cylinder Base Gasket Set. 3-1/2" Copper – 1984–1999 Evo Big Twin

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Cometic Builders Cylinder Base Gasket Set. 3-1/2" Copper – 1984–1999 Evo Big Twin 3-1/2" standard bore. With ''type A'' style gaskets. Includes two...

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Cometic Gasket Set Cylinder Head. .040" MLS – 1966–1984 Shovelhed

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Cometic Gasket Set Cylinder Head. .040" MLS – 1966–1984 Shovelhed Fits both front & rear of 3-7/16" (74"/1200cc) & 3-1/2" (80"/1340cc) stan...

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Cometic Cylinder Head .040" MLS – 1948–1965 Panhead

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Cometic Cylinder Head .040" MLS – 1948–1965 Panhead Standard bore replacement. MLS (Multi Layer Steel) consists of a top and bottom layer of stainl...

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£96.25
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£92.92
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£92.92

Cometic Cylinder Head Gaskets. .043" Copper – L1973–1985 XL1000

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Cometic Cylinder Head Gaskets. .043" Copper – L1973–1985 XL1000 OEM replacement reference 16769-73. Fitment L73-85 XL1000 (NU) Product Details Br...

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£92.92
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£131.64
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£129.81
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£129.81

Cometic Cylinder Head Gaskets. .032" Copper – L1973–1985 XL1000

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Cometic Cylinder Head Gaskets. .032" Copper – L1973–1985 XL1000 OEM replacement reference 16769-73. Fitment L73-85 XL1000 (NU) Product Details Br...

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£129.81
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£129.81

Cometic Cylinder Head Gaskets. .020" Copper – 72-E73 XL1000

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Cometic Cylinder Head Gaskets. .020" Copper – 72-E73 XL1000 OEM replacement reference 16769-72A. Fitment 72-E73 XL1000 (NU) Product Details Brand...

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£125.03
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£123.30
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£123.30

Cometic Cylinder Head Gaskets. .032" Copper – 1957–1971 XL900

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Cometic Cylinder Head Gaskets. .032" Copper – 1957–1971 XL900 Standard 3.00" bore. OEM replacement reference 16769-57. Fitment 57-71 XL900 (NU) Pro...

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Cometic Cylinder Head Gasket Set. 3-5/8" MLS – 1966–1984 SHOVEL

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Cometic Cylinder Head Gasket Set. 3-5/8" MLS – 1966–1984 SHOVEL .040" MLS (Multi Layer Steel). Consists of a top and bottom layer of embossed stain...

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Cometic Cylinder Head Gaskets 3-3/4" Bore .045" MLS – 1999–2017 88"/96" Twin Cam A/B

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Cometic Cylinder Head Gaskets 3-3/4" Bore .045" MLS – 1999–2017 88"/96" Twin Cam A/B MLS (Multi Layer Steel). Front & rear gasket for one engin...

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Cometic Cylinder Head. 3" Bore .040" MLS – 1986–2022 XL883

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Cometic Cylinder Head. 3" Bore .040" MLS – 1986–2022 XL883 .040" MLS (Multi Layer Steel). Stock 3" bore. MLS (Multi Layer Steel) consists of a top ...

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£23.01
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£23.01
£21.91
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£21.91

Cometic Gasket Set Cylinder Head. .032" Copper – 1966–1984 Shovelhead

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Cometic Gasket Set Cylinder Head. .032" Copper – 1966–1984 Shovelhead Fits both front & rear of 3-7/16" (74"/1200cc) & 3-1/2" (80"/1340cc) ...

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£21.91
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£21.91
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Cometic Cylinder Head Gaskets 3-3/4" Bore .051" MLS – 1999–2017 88"/96" Twin Cam A/B

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Cometic Cylinder Head Gaskets 3-3/4" Bore .051" MLS – 1999–2017 88"/96" Twin Cam A/B MLS (Multi Layer Steel). Front & rear gasket for one engin...

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Cometic Cylinder Head Gasket Set. 3-13/16" .040" MLS – 1984–1999 Evo Big Twin

Only 2 left!

Cometic Cylinder Head Gasket Set. 3-13/16" .040" MLS – 1984–1999 Evo Big Twin .040" thick MLS (Multi Layer Steel). Consists of a top and bottom lay...

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Cometic Cylinder Head Gasket Set. 3-13/16" .030" MLS – 1984–1999 Evo Big Twin

Out of stock

Cometic Cylinder Head Gasket Set. 3-13/16" .030" MLS – 1984–1999 Evo Big Twin .030" thick MLS (Multi Layer Steel). Consists of a top and bottom lay...

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Cometic Cylinder Head Gasket Set. 3-5/8" .040" MLS – 1984–1999 Evo Big Twin; 1986–2005 XL…

Only 2 left!

Cometic Cylinder Head Gasket Set. 3-5/8" .040" MLS – 1984–1999 Evo Big Twin; 1986–2005 XL… .040" thick MLS (Multi Layer Steel). Consists of a top a...

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£51.20
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Cometic Cylinder Head Gasket Set. 3-5/8" .030" MLS – 1984–1999 Evo Big Twin; 1986–2005 XL…

Out of stock

Cometic Cylinder Head Gasket Set. 3-5/8" .030" MLS – 1984–1999 Evo Big Twin; 1986–2005 XL… .030" thick MLS (Multi Layer Steel). Consists of a top a...

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Cometic Cylinder Head. 3.5" Bore .040" MLS – 1984–1999 Big Twin; 1988–2022 XL…

Only 1 left!

Cometic Cylinder Head. 3.5" Bore .040" MLS – 1984–1999 Big Twin; 1988–2022 XL… .040" thick MLS (Multi Layer Steel). Consists of a top and bottom la...

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Cometic Cylinder Head. 3.5" Bore .030" MLS – 1984–1999 Big Twin; 1988–2022 XL…

Only 2 left!

Cometic Cylinder Head. 3.5" Bore .030" MLS – 1984–1999 Big Twin; 1988–2022 XL… .030" thick MLS (Multi Layer Steel). Consists of a top and bottom la...

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£19.34
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£18.42
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£18.42

Cometic Cylinder Base O-ring. FR/RR – 1999–2017 88" Up to 103" Twin Cam

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Cometic Cylinder Base O-ring. FR/RR – 1999–2017 88" Up to 103" Twin Cam Front & rear. All 3-3/4" (88"/96") & 3-7/8" (95"/103") bore applica...

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Cometic Cylinder Head Gaskets 3-7/8" Bore .027" MLS – 1999–2017 Twin Cam. With 3-7/8" Bore…

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Cometic Cylinder Head Gaskets 3-7/8" Bore .027" MLS – 1999–2017 Twin Cam. With 3-7/8" Bore… MLS (Multi Layer Steel). Front & rear gasket for on...

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