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Harley-Davidson Crankcase Breathers

If you're looking to replace your crankcase breather and upgrade your stock valves, J&P Cycles is the right place. We carry the best selection of Harley-Davidson crankcase breathers that allow increased performance by releasing unwanted pressure, maintaining ventilation and stopping high-RPM oil from carrying over. Find breather kits, power kits, pressure relief valves and more. Our chrome oil collectors, featuring internal baffles, help to fix the oily mess left by the breather. Shop our top brands, including S&S, JIMS and K&N to find all the Harley-Davidson parts and crankcase breathers that you need.

As the world's largest aftermarket motorcycle parts and accessories retailer, J&P Cycles offers more than 100,000 products so you can find the parts that will give you the performance boost you're looking for!

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Part Number: 431-335

Everyday Low Price: $147.99

Gold Club Price:What's This? $133.19

Customer Rating:
Made in the USA
Product Description:
Diameter: 1-1/2″
Finish: Polished
Height: 5″
Length: 2-3/4″
Material: Aluminum
Sold in Units: Each
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In Stock, usually ships same business day.
Part Number: 431-336

Everyday Low Price: $189.99

Gold Club Price:What's This? $170.99

Customer Rating:
Made in the USA
Product Description:
Diameter: 1-1/2″
Finish: Chrome
Height: 5″
Length: 2-3/4″
Material: Aluminum
Sold in Units: Each
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In Stock, usually ships same business day.
Part Number: 740-589

Everyday Low Price: $117.99

Gold Club Price:What's This? $106.19

Customer Rating:
Hayden Enterprises Inc
Made in the USA
Product Description:
Finish: Polished
Material: Aluminum
Sold in Units: Each
Style: Hayden
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Available, usually ships in 2-4 business days.
Part Number: 4300150

Everyday Low Price: $17.99

Gold Club Price:What's This? $16.19

Customer Rating:
J&P Cycles
Product Description:
Diameter: 2″
Finish: Chrome
Length: 1-1/2″
Material: Chrome
Sold in Units: Each
Style: Faceted
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In Stock, usually ships same business day.
Part Number: 4300145

Everyday Low Price: $12.99

Gold Club Price:What's This? $11.69

Customer Rating:
J&P Cycles
Product Description:
Finish: Chrome Plated
Material: Aluminum
Sold in Units: Each
Style: Faceted
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In Stock, usually ships same business day.
Part Number: 4300400

Everyday Low Price: $18.99

Gold Club Price:What's This? $17.09

Customer Rating:
J&P Cycles
Product Description:
Diameter: 2″
Finish: Chrome
Length: 1-1/2″
Material: Chrome
Sold in Units: Each
Style: Slotted
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In Stock, usually ships same business day.
Part Number: 740-528

Everyday Low Price: $13.99

Gold Club Price:What's This? $12.59

Customer Rating:
J&P Cycles
Product Description:
Finish: Chrome
Material: Steel
OEM Reference: 24912-52
Sold in Units: Each
Style: Original Style
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In Stock, usually ships same business day.
Part Number: 402-041

Everyday Low Price: $24.99

Gold Club Price:What's This? $22.49

Customer Rating:
K&N
Made in the USA
Product Description:
Diameter: 3/8″
Finish: Chrome
Height: 1-1/2″ high
Manufacturer Part Number: 62-1000
Material: Pleated Gauze
Sold in Units: Each
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In Stock, usually ships same business day.
Part Number: 740-974

Everyday Low Price: $39.99

Gold Club Price:What's This? $35.99

Customer Rating:
Product Description:
Finish: Raw
Material: Steel
Sold in Units: Kit
Style: Original Style
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In Stock, usually ships same business day.
Part Number: 400-545

Everyday Low Price: $14.99

Gold Club Price:What's This? $13.49

Customer Rating:
UNI
Product Description:
Diameter: 1-3/8″
Finish: Dry
Length: 1-1/2″
Material: Polyurathane
Sold in Units: Each
Style: Crankcase breather
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Available, usually ships in 5-7 days.