Top Categories
All Categories

Top Categories

All Categories

Shop By Vehicle
Account Login
Gift Cards
Track Order
Moroso 25900

Moroso Crankcase Evacuation System


made in usa

Moroso Crankcase Evacuation System $70.99
Out of stock
Crankcase Evacuation System

Items You May Also Consider

Moroso 25900 Details

This kit reduces crankcase pressure throughout entire RPM range for increased piston ring seal, reduced intake charge contamination and fewer oil leaks. Track and Dyno test prove that an increase in engine performance is obtained with this item. Designed to be used with 5/8" diameter hose. Cannot be used with mufflers.

Kit includes 2 each:

  • Oil Separators/Breathers
  • Breather/Filler Cap Grommets
  • One-way Check Valves
  • Weld-in Nipples for header collector

  • Specifications:

    Breather Finish
    Gold iridited
    Breather Material
    Check Valve Finish
    Gold iridited
    Check Valve Material
    Check Valves Included
    Evacuation Hose Included
    Grommet Material
    Sold as a kit
    Valve Cover Breather Included
    Valve Cover Grommets Included
    Weld-In Nipples for Header Included
    Manufacturer's Part Number:

    Moroso Crankcase Evacuation Systems are designed to reduces crankcase pressure while increasing piston ring seal, reducing intake charge contamination and reducing the chance of oil leaks. Track and dyno tests prove significant increases in engine performance when this item is used.

    25900 - Moroso Crankcase Evacuation System is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Good Quality So far it has been a great product. I am using it on my 1978 camaro drag car with a 383 SBC.
    Date published: 2014-11-01
    • y_2019, m_6, d_25, h_7
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.12
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_248712, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.