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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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£46.55
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£44.32

Cometic Primary Gasket & Seal Kit. AFM – 1991–2003 XL Sportster

Only 2 left!

Cometic Primary Gasket & Seal Kit. AFM – 1991–2003 XL Sportster These AFM (Aluminum Foamette Material) gaskets feature an aluminum core with a ...

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£46.55
£44.32
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£44.32
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£46.55
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£46.55
£44.32
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£44.32

Cometic Primary Gasket & Seat Kit. AFM – 1986–1990 XL Sportster

Only 2 left!

Cometic Primary Gasket & Seat Kit. AFM – 1986–1990 XL Sportster These AFM (Aluminum Foamette Material) gaskets feature an aluminum core with a ...

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£46.55
£44.32
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£44.32
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£18.49
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£18.49
£17.60
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£17.60

Cometic Upper Rocker Cover Gasket. Rubber (2) – 2004–2006 XL Sportster

Only 2 left!

Cometic Upper Rocker Cover Gasket. Rubber (2) – 2004–2006 XL Sportster 04-06 style with elongated holes. Will retrofit to 91-03 models where it is ...

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£18.49
£17.60
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£17.60
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£27.71
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£27.71
£26.38
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£26.38

Cometic Cylinder Base Gaskets. RCS 3-5/8" Big Bore (Pr) – 1963–1965 Panhead; 1966–1984 Shovelhead.…

Out of stock

Cometic Cylinder Base Gaskets. RCS 3-5/8" Big Bore (Pr) – 1963–1965 Panhead; 1966–1984 Shovelhead.… Front & rear gasket for one engine. .020" t...

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£27.71
£26.38
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£26.38
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£27.71
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£27.71
£26.38
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£26.38

Cometic Cylinder Base Gasket Set FR/RR. .020" RCS – 1963–1965 Panhead; 1966–1984 Shovelhead

Out of stock

Cometic Cylinder Base Gasket Set FR/RR. .020" RCS – 1963–1965 Panhead; 1966–1984 Shovelhead Front & rear gasket set. With one oil hole. .020" t...

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£27.71
£26.38
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£26.38
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£51.20
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£51.20
£48.75
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£48.75

Cometic Cylinder Head. 3" Bore .030" MLS – 1986–2022 XL883

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Cometic Cylinder Head. 3" Bore .030" MLS – 1986–2022 XL883 .030" MLS (Multi Layer Steel). Stock 3" bore. MLS (Multi Layer Steel) consists of a top ...

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£51.20
£48.75
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£48.75
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£16.49
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£15.70
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£15.70

Cometic Starter to Inner Primary – 2007–2026 Softail; 2006–2017 Dyna…

Out of stock

Cometic Starter to Inner Primary – 2007–2026 Softail; 2006–2017 Dyna… Starter motor to inner primary housing. OEM replacement reference 27444-00Y F...

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£16.49
£15.70
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£15.70
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£74.82
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£74.82
£72.23
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£72.23

Cometic Oil Seal 6Th Gear Transmission – 2007–2026 Softail; 2006–2017 Dyna…

Out of stock

Cometic Oil Seal 6Th Gear Transmission – 2007–2026 Softail; 2006–2017 Dyna… 1 used. OEM replacement reference 12077. Fitment 07-26 Softail; 06-17 (...

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£72.23
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£21.05
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Cometic Gasket Transmission to Engine – 2008–2017 Dyna; 2007–2016 FLT/Touring

Out of stock

Cometic Gasket Transmission to Engine – 2008–2017 Dyna; 2007–2016 FLT/Touring Transmission to engine interface gasket. OEM replacement reference 35...

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£21.05
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£27.04
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£25.75
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£25.75

Cometic Gasket Transmission Top Cover. .060" AFM – 2007–2017 Softail; 2006–2017 Dyna…

Only 2 left!

Cometic Gasket Transmission Top Cover. .060" AFM – 2007–2017 Softail; 2006–2017 Dyna… .060" thick AFM (Aluminum Foamette Material). OEM replacement...

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£27.04
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£27.04
£25.75
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£25.75
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£29.01
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£29.01
£27.62
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£27.62

Cometic Gasket Transmission End Cover. .060" AFM – 2007–2024 Softail; 2006–2017 Dyna…

Out of stock

Cometic Gasket Transmission End Cover. .060" AFM – 2007–2024 Softail; 2006–2017 Dyna… .060" thick AFM (Aluminum Foamet Material). OEM replacement r...

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£29.01
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£29.01
£27.62
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£27.62
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£30.10
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£30.10
£28.66
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£28.66

Cometic Gasket Transmission Bearing Housing. .032" AFM – 2007–2024 Softail; 2006–2017 Dyna…

Only 2 left!

Cometic Gasket Transmission Bearing Housing. .032" AFM – 2007–2024 Softail; 2006–2017 Dyna… .032" thick AFM (Aluminum Foamet Material). Used betwee...

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£30.10
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£30.10
£28.66
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£28.66
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£31.13
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£31.13
£29.64
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£29.64

Cometic Gasket Derby Cover – L1984–1998 Big Twin

Only 2 left!

Cometic Gasket Derby Cover – L1984–1998 Big Twin Gasket replacement for the OEM style O-ring. OEM replacement reference 25416-84. Fitment L84-98 Bi...

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£31.13
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£31.13
£29.64
£29.64 - £29.64
£29.64
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£162.20
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£162.20
£159.95
£159.95 - £159.95
£159.95

Cometic Gasket Primary Housing. .060" AFM. 5-Pk – 2007–2016 FLT/Touring

Only 2 left!

Cometic Gasket Primary Housing. .060" AFM. 5-Pk – 2007–2016 FLT/Touring .060" AFM (Aluminum Foamet Material). OEM replacement reference 34901-07. C...

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£162.20
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£162.20
£159.95
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£159.95
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£83.31
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£83.31
£80.43
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£80.43

Cometic 6-Speed Transmission Gasket & Seal Kit – 2007–2016 FLT/Touring

Out of stock

Cometic 6-Speed Transmission Gasket & Seal Kit – 2007–2016 FLT/Touring Everything you need when assembling the transmission. Fitment 07-16 FLT/...

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£83.31
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£83.31
£80.43
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£80.43
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£83.31
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£83.31
£80.43
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£80.43

Cometic 6-Speed Transmission Gasket & Seal Kit – 2007–2017 Softail

Only 1 left!

Cometic 6-Speed Transmission Gasket & Seal Kit – 2007–2017 Softail Everything you need when assembling the transmission. Fitment 07-17 Softail ...

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£83.31
£83.31 - £83.31
£83.31
£80.43
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£80.43
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£100.73
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£100.73
£97.24
£97.24 - £97.24
£97.24

Cometic 6-Speed Primary Cover Gasket & Seal Kit. AFM – 2007–2016 FLT/Touring; 2009–2016 Trike

Out of stock

Cometic 6-Speed Primary Cover Gasket & Seal Kit. AFM – 2007–2016 FLT/Touring; 2009–2016 Trike Complete outer & inner primary cover gasket s...

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£100.73
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£100.73
£97.24
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£97.24
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£168.08
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£168.08
£165.75
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£165.75

Cometic EST Motor Gasket Kit. 3-3/4" Bore – 2006–2017 96" Dyna (with 1999–2010 Style…

Only 2 left!

Cometic EST Motor Gasket Kit. 3-3/4" Bore – 2006–2017 96" Dyna (with 1999–2010 Style… This EST (Extreme-Sealing-Technology) gasket set is complete ...

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£168.08
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£168.08
£165.75
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£165.75
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£16.17
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£16.17
£15.39
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£15.39

Cometic Pushrod Cover Seal Kit – 1991–2003 XL Sportster

Out of stock

Cometic Pushrod Cover Seal Kit – 1991–2003 XL Sportster OEM style o-ring upper and lower seals. Includes a complete set of 8 seals to service one e...

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£16.17
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£16.17
£15.39
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£15.39
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£45.18
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£45.18
£43.02
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£43.02

Cometic Cylinder Head Gasket Set. 3-13/16" .043" Copper – 1984–1999 Evo Big Twin

Out of stock

Cometic Cylinder Head Gasket Set. 3-13/16" .043" Copper – 1984–1999 Evo Big Twin .043" thick copper. Fitment 84-99 Evo Big Twin (NU) Product Detail...

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£45.18
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£45.18
£43.02
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£43.02
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£12.08
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£11.50
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£11.50

Cometic Gasket Primary Shifter Hole – 2018–2025 Softail; 2006–2017 Dyna. (Mid…

Out of stock

Cometic Gasket Primary Shifter Hole – 2018–2025 Softail; 2006–2017 Dyna. (Mid… 1 used. Small round washer type gasket. Fits inside of inner primary...

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£12.08
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£12.08
£11.50
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£11.50
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£9.69
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£9.69
£8.92
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£8.92

Cometic Gasket Mainshaft Seal Retainer – 1952–1956 K; KH; 57-E84 XL Sportster

Only 2 left!

Cometic Gasket Mainshaft Seal Retainer – 1952–1956 K; KH; 57-E84 XL Sportster OEM replacement reference 35169-52. Note: See James 901005 for comple...

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£9.69
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£9.69
£8.92
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£8.92
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£26.32
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£26.32
£25.06
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£25.06

Cometic Oil Seal. Balance Support Interconnect – 2000–2017 Twin Cam B

Only 1 left!

Cometic Oil Seal. Balance Support Interconnect – 2000–2017 Twin Cam B 1 used for engine balancer. Repl. 45359-00 Fitment 00-17 Twin Cam B (NU) Prod...

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£26.32
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£26.32
£25.06
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£20.92
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£20.63
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£20.63

James Gaskets O-ring. Oil Filter Cup – 1953–1956 K; KH; L66-E82 FL Models with…

Only 2 left!

James Gaskets O-ring. Oil Filter Cup – 1953–1956 K; KH; L66-E82 FL Models with… OEM replacement reference 63879-53 Fitment 53-56 K; KH; L66-E82 FL ...

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£20.92
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£20.63
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£20.63
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