Breather Kits

8 products

Crankcase ventilation kits to upgrade or replace your bike's breather system for a cleaner-running V-twin. We stock Trask Performance, MCS, and Mikuni, fitting Sportster, Softail, Touring, and Dyna — anything from a high-flow breather filter to a full relocation kit. A better breather setup reduces oil blow-by and improves how efficiently the intake breathes, which is why it's one of the most popular engine mods across the range.

OEM Replacement Parts OEM Only — Active Genuine H-D & replacements Tap to clear filter

Custom & Performance Aftermarket Only — Active Upgrades & Aftermarket Tap to clear filter

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Showing 1–8 of 8 INTAKE

Trask Performance Trask, Assault air filter external breather kit

Trask, Assault air filter external breather kit

Trask Performance

#TM-1020-11

£184.79£166.31

Member£157.07-15%

MCS Dual breather kit, short canister

Dual breather kit, short canister

MCS

#999490

£111.65£100.49

Member£94.90-15%

Kustom Tech K-Tech, air cleaner bracket & breather kit. Polished

K-Tech, air cleaner bracket & breather kit. Polished

Kustom Tech

#02-007

£106.42£95.78

Member£90.46-15%

MCS Dual breather kit, long canister

Dual breather kit, long canister

MCS

#507956

£105.78£95.20

Member£89.91-15%

Mikuni Mikuni, headvent breather kit

Mikuni, headvent breather kit

Mikuni

#KHS-020

Member£84.72-15%

Mikuni Mikuni, headvent breather kit

Mikuni, headvent breather kit

Mikuni

#KHS-030

Member£84.72-15%

Kuryakyn Kuryakyn, Bluegrass breather kit

Kuryakyn, Bluegrass breather kit

Kuryakyn

#9932

Member£84.16-15%

James Gaskets James, breather assembly rebuild kit

James, breather assembly rebuild kit

James Gaskets

#17025-03-K

Member£16.01-15%

Trask Performance Trask, Assault air filter external breather kit

Trask, Assault air filter external breather kit

Trask Performance

#TM-1020-11

£184.79 £166.31

Member £157.07 -15%

MCS Dual breather kit, short canister

Dual breather kit, short canister

MCS

#999490

£111.65 £100.49

Member £94.90 -15%

Kustom Tech K-Tech, air cleaner bracket & breather kit. Polished

K-Tech, air cleaner bracket & breather kit. Polished

Kustom Tech

#02-007

£106.42 £95.78

Member £90.46 -15%

MCS Dual breather kit, long canister

Dual breather kit, long canister

MCS

#507956

£105.78 £95.20

Member £89.91 -15%

Mikuni Mikuni, headvent breather kit

Mikuni, headvent breather kit

Mikuni

#KHS-020

£99.67 £89.70

Member £84.72 -15%

Mikuni Mikuni, headvent breather kit

Mikuni, headvent breather kit

Mikuni

#KHS-030

£99.67 £89.70

Member £84.72 -15%

Kuryakyn Kuryakyn, Bluegrass breather kit

Kuryakyn, Bluegrass breather kit

Kuryakyn

#9932

£99.01 £89.11

Member £84.16 -15%

James Gaskets James, breather assembly rebuild kit

James, breather assembly rebuild kit

James Gaskets

#17025-03-K

£18.84 £16.96

Member £16.01 -15%

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