Crankcase Breathers

Filter

Filter

Brand

clear

Collection

clear
Motorcycle Crankcase Breathers from K and G Cycles!
16 products

16 products

Sold Out
Engine Breather Kit Evo 93/99 & Twin Cam 99/L* Plain Filters
Mid-USA
$54.15
Quick view
Breather Valve & Gear Std Od Sh BT Evo Late 1977/Later Rpls Hd 25313-77A Jims 2337St
Mid-USA
$167.50
Sold Out
Crankcase Breather Filter,Cp 3/8" Inlet,Inc Cp Buttonhead Bolt For Mounting Filter
Mid-USA
$14.80
Quick view
Crankcase Breather Filter Kit BT Spt All Mdls Cus App Tab Mt Cp W/3/8"Inlet,Zip Tie & Clamp
Mid-USA
$14.40
Sold Out
Engine,Breather Manifold Kit BT Evo 1993/1999 & Tc88 99/L* Crossover Tube Mounts & Hrdw
Mid-USA
$44.85
Sold Out
Breather Filter Replacement Crankcase Breather Kit #84328 #84329
Mid-USA
$9.15
Sold Out
Engine Breather Kit Evo 93/99 & Twin Cam 99/L* Billet Filters
Mid-USA
$76.95
Quick view
Crankcase Vent Hose Bss FLHR/T FLTR Dyna 99/01 Rpls Hd 45808-02 Mfg# R50031
Mid-USA
$85.94
Quick view
Breather Valve & Gear Std Od Big Twin 48/Early 77 Std O.D. Rpls Hd 25313-73 Jims 2338S
Mid-USA
$161.05
Quick view
Breather Valve & Gear +.030 Os Big Twin 48/Early 77 +.030"Os No Hd Rpls Jims..2338
Mid-USA
$161.05
Quick view
Breather Valve & Gear +.030 Os Sh BT Evo Late 77/Later Rpls Hd#25313-77A Jims..2337
Mid-USA
$161.05
Sold Out
Engine Part,Breather Filter Crankcase Breather #65379 Replacement Filter Only
Mid-USA
$10.00
Quick view
Breather Baffle Cvr Lower Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17592-99 Cometic C9580
Mid-USA
$12.95
Quick view
Breather Baffle Cvr Upper Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17591-99 Cometic C9579
Mid-USA
$12.95
Quick view
Oil Mist Eliminator Kit Rkr Box Spt Evo 1991/03 Slobber Stopper W/2 Fittings,Drill,Tap
Mid-USA
$40.70
Quick view
Oil Mist Eliminator Kit Rkr Box BT Evo 1993/99 Slobber Stopper W/2 Fittings,Drill,Tap
Mid-USA
$40.70
Breather Valve & Gear Std Od Sh BT Evo Late 1977/Later Rpls Hd 25313-77A Jims 2337St Harley Mid-USA - K and G Cycles
Mid-USA

Breather Valve & Gear Std Od Sh BT Evo Late 1977/Later Rpls Hd 25313-77A Jims 2337St

MID-66007

$167.50

In Stock

Save $-167.50
/
Shipping calculated at checkout.
Breather Valve & Gear Std Od Sh Bt Evo Late 1977/Later Rpls Hd 25313-77A Jims 2337St
  • Whether you're building an engine from scratch, rebuilding an engine that has been thrashed or updating from the OEM plastic breather, we recommend using one of these top quality steel breather valve and gears
  • The stock plastic breathers are known for their terrible distortion and can easily be upgraded to one of these
  • All Jim's breathers are of the late style slotted design
  • All breathers listed are designed to be used with Late 1979/1982 steel breather shims
  • See the engine section for breather shims
  • Available in standard diameter or +.030 outside diameter
  • The +.030 is designed to repair gouged out breather holes and will require machine work
Jims
Standard Diameter Breather Valve & Gear
Fits Shovelhead & Big Twin Evolution Late 1977/Later
Replaces HD# 25313-77A
Note: Features an elongated oil evacuation hole to increase the duration of the suction to the breather settling cavity
Crankcase Breather Filter Kit BT Spt All Mdls Cus App Tab Mt Cp W/3/8"Inlet,Zip Tie & Clamp Harley Mid-USA - K and G Cycles
Mid-USA

Crankcase Breather Filter Kit BT Spt All Mdls Cus App Tab Mt Cp W/3/8"Inlet,Zip Tie & Clamp

MID-65303

$14.40

In Stock

Save $-14.40
/
Shipping calculated at checkout.
Crankcase Breather Filter Kit Bt Spt All Mdls Cus App Tab Mt Cp W/3/8"Inlet,Zip Tie & Clamp
  • V-FACTOR
  • Eliminates contaminants from entering the crankcase breather hose
  • Helps to trap any oil mist that normally comes out of the breather hose
  • Includes mounting tab with 1/4 I.D. hole
  • Gauze type filter element is easily cleaned
  • Compact size measures 1 1/2 long x 1 1/2 O.D
  • Chrome plated
Fits all models with 3/8 I.D. crankscase breather hose.its all models with 3/8 I.D. crankcase breather hose
Crankcase Vent Hose Bss FLHR/T FLTR Dyna 99/01 Rpls Hd 45808-02 Mfg# R50031 Harley Mid-USA - K and G Cycles
Mid-USA

Crankcase Vent Hose Bss FLHR/T FLTR Dyna 99/01 Rpls Hd 45808-02 Mfg# R50031

MID-83112

$85.94

In Stock

Save $-85.94
/
Shipping calculated at checkout.
Crankcase Vent Hose Bss Flhr/T Fltr Dyna 99/01 Rpls Hd 45808-02 Mfg# R50031
Designed to replace the OEM rubber vent hose that runs from the engine crankcase to the transmission housing Russell
Braided Stainless Steel Line
Fits FLHR, FLHT & FLTR 2002/2006
Replaces HD# 45808-02
Breather Valve & Gear Std Od Big Twin 48/Early 77 Std O.D. Rpls Hd 25313-73 Jims 2338S Harley Mid-USA - K and G Cycles
Mid-USA

Breather Valve & Gear Std Od Big Twin 48/Early 77 Std O.D. Rpls Hd 25313-73 Jims 2338S

MID-66077

$161.05

In Stock

Save $-161.05
/
Shipping calculated at checkout.
Breather Valve & Gear Std Od Big Twin 48/Early 77 Std O.D. Rpls Hd 25313-73 Jims 2338S
  • Whether you're building an engine from scratch, rebuilding an engine that has been thrashed or updating from the OEM plastic breather, we recommend using one of these top quality steel breather valve and gears
  • The stock plastic breathers are known for their terrible distortion and can easily be upgraded to one of these
  • All Jim's breathers are of the late style slotted design
  • All breathers listed are designed to be used with Late 1979/1982 steel breather shims
  • See the engine section for breather shims
  • Available in standard diameter or +.030 outside diameter
  • The +.030 is designed to repair gouged out breather holes and will require machine work
Jims
Standard Diameter Breather Valve & Gear
Fits Panhead & Shovelhead 1948/Early 1977
Replaces HD# 25313-73
Breather Valve & Gear +.030 Os Big Twin 48/Early 77 +.030"Os No Hd Rpls Jims..2338 Harley Mid-USA - K and G Cycles
Mid-USA

Breather Valve & Gear +.030 Os Big Twin 48/Early 77 +.030"Os No Hd Rpls Jims..2338

MID-66076

$161.05

In Stock

Save $-161.05
/
Shipping calculated at checkout.
Breather Valve & Gear +.030 Os Big Twin 48/Early 77 +.030"Os No Hd Rpls Jims..2338
  • Whether you're building an engine from scratch, rebuilding an engine that has been thrashed or updating from the OEM plastic breather, we recommend using one of these top quality steel breather valve and gears
  • The stock plastic breathers are known for their terrible distortion and can easily be upgraded to one of these
  • All Jim's breathers are of the late style slotted design
  • All breathers listed are designed to be used with Late 1979/1982 steel breather shims
  • See the engine section for breather shims
  • Available in standard diameter or +.030 outside diameter
  • The +.030 is designed to repair gouged out breather holes and will require machine work
Jims
+.030 Outside Diameter Breather Valve & Gear
Fits Panhead & Shovelhead 1948/Early 1977
Breather Valve & Gear +.030 Os Sh BT Evo Late 77/Later Rpls Hd#25313-77A Jims..2337 Harley Mid-USA - K and G Cycles
Mid-USA

Breather Valve & Gear +.030 Os Sh BT Evo Late 77/Later Rpls Hd#25313-77A Jims..2337

MID-66075

$161.05

In Stock

Save $-161.05
/
Shipping calculated at checkout.
Breather Valve & Gear +.030 Os Sh Bt Evo Late 77/Later Rpls Hd#25313-77A Jims..2337
  • Whether you're building an engine from scratch, rebuilding an engine that has been thrashed or updating from the OEM plastic breather, we recommend using one of these top quality steel breather valve and gears
  • The stock plastic breathers are known for their terrible distortion and can easily be upgraded to one of these
  • All Jim's breathers are of the late style slotted design
  • All breathers listed are designed to be used with Late 1979/1982 steel breather shims
  • See the engine section for breather shims
  • Available in standard diameter or +.030 outside diameter
  • The +.030 is designed to repair gouged out breather holes and will require machine work
Jims
+.030 Outside Diameter Breather Valve & Gear
Fits Shovelhead & Big Twin Evolution Late 1977/Later
Replaces HD# 25313-77A
Breather Baffle Cvr Lower Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17592-99 Cometic C9580 Harley Mid-USA - K and G Cycles
Mid-USA

Breather Baffle Cvr Lower Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17592-99 Cometic C9580

MID-62617

$12.95

In Stock

Save $-12.95
/
Shipping calculated at checkout.
Breather Baffle Cvr Lower Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17592-99 Cometic C9580
Cometic's Rocker Cover Gaskets are made from stainless steel and feature a NBR (rubber) coating to eliminate any chance of gasket failure. All paper type gaskets are made from a Kevlar® based fiber material. All gaskets and O rings listed fit Twin Cam 88 1999/Later including 1500cc (95ci).COMETIC GASKET Breather Baffle Cover Lower Gasket, paper type. Sold in packages of 10
Breather Baffle Cvr Upper Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17591-99 Cometic C9579 Harley Mid-USA - K and G Cycles
Mid-USA

Breather Baffle Cvr Upper Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17591-99 Cometic C9579

MID-62614

$12.95

In Stock

Save $-12.95
/
Shipping calculated at checkout.
Breather Baffle Cvr Upper Gskt Tc88 99/01 Also 1550Cc (95 Cu) Rpls Hd 17591-99 Cometic C9579
Cometic's Rocker Cover Gaskets are made from stainless steel and feature a NBR (rubber) coating to eliminate any chance of gasket failure. All paper type gaskets are made from a Kevlar® based fiber material. All gaskets and O rings listed fit Twin Cam 88 1999/Later including 1500cc (95ci).COMETIC GASKET Breather Baffle Cover Upper Gasket, paper type. Sold in packages of 10
Oil Mist Eliminator Kit Rkr Box Spt Evo 1991/03 Slobber Stopper W/2 Fittings,Drill,Tap Harley Mid-USA - K and G Cycles
Mid-USA

Oil Mist Eliminator Kit Rkr Box Spt Evo 1991/03 Slobber Stopper W/2 Fittings,Drill,Tap

MID-60008

$40.70

In Stock

Save $-40.70
/
Shipping calculated at checkout.
Oil Mist Eliminator Kit Rkr Box Spt Evo 1991/03 Slobber Stopper W/2 Fittings,Drill,Tap
Eliminate the crankcase breather mist from entering the air cleaner and eventually covering the side of your motorcycle with this ingenius kit. It simply installs in the center rocker box cover next to the umbrella valve. Kit includes 2 slobber stoppers, tap, drill bit and complete instructions.its Evolution Sportster 1991/2003
Oil Mist Eliminator Kit Rkr Box BT Evo 1993/99 Slobber Stopper W/2 Fittings,Drill,Tap Harley Mid-USA - K and G Cycles
Mid-USA

Oil Mist Eliminator Kit Rkr Box BT Evo 1993/99 Slobber Stopper W/2 Fittings,Drill,Tap

MID-60004

$40.70

In Stock

Save $-40.70
/
Shipping calculated at checkout.
Oil Mist Eliminator Kit Rkr Box Bt Evo 1993/99 Slobber Stopper W/2 Fittings,Drill,Tap
Eliminate the crankcase breather mist from entering the air cleaner and eventually covering the side of your motorcycle with this ingenius kit. It simply installs in the center rocker box cover next to the umbrella valve. Kit includes 2 slobber stoppers, tap, drill bit and complete instructions.its Big Twin Evolution 1993/1999