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Hayden Krank Vent Plus Crankcase Breather For Harley

Item: P304965
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Installs on your crankcase breather hose and controls the air under the pistons by maintaining the proper amount of vacuum in the crankcase at any rpm… Read More

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Product Details

Hayden Krank Vent Plus Crankcase Breather For Harley


  • Designed by Tom Hayden the inventor of the M6 chain tensioner
  • Ultra compact with a calibrated umbrella valve
  • Reduces crankcase pressure and increases power
  • Designed to work on all models venting from crankcase but can be used on models venting from the heads
  • Does not come with air filter
Made in the USA
Product Style J&P Cycles Item # Catalog Number Store Sku MFR. Product # Availability
Product Style Hayden Krank Vent Plus Crankcase Breather For Harley J&P Cycles Item #1038180 Catalog Number740-589 Store Sku MFR. Product #KV AvailabilityOut of Stock
Fitment Notes & Exceptions
  • Fits Pre-1993 Big Twin models with a crankcase breather
  • Will not fit 1993-Up head-breather models
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