Marine Crankcase Ventilation Filters & Separators

64 results
CategoryMarine Engine Parts & Accessories
CategoryMarine Crankcase Ventilation Filters & Separators
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ccv55248 of Racor Replacement Filter Elements - for CCV4500 Closed Crankcase Ventilation Unit

Racor

CCV55248 Crankcase Ventilation Replacement Elements for CCV4500 Series

Available in 2 options

$58.83 - $101.09

In Stock
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Walker Airsep

Vacuum Regulators

Available in 2 options

$129.95 - $133.50

In Stock
VACUUM REGULATOR FILTER

Walker Airsep

Replacement Element for AirSep Air Filter Vacuum Regulator

SKU: 200473 | Item ID: WLK CD180

$36.37

In Stock
7-1/2 X 6 AIR FILTER STRAIGHT

Walker Airsep

AirSep Replacement Diesel Air Filter Elements - Straight, 7-1/2" Diameter

Available in 5 options

$106.40 - $127.07

In Stock
ccv4500-08l of Racor Closed Crankcase Ventilation Assemblies 0-400 HP

Racor

Closed Crankcase Ventilation Assemblies 0-400 HP

Available in 2 options

$399.74

In Stock
195 of Walker Airsep AirSep Replacement Diesel Air Filter Elements - Tapered, 9" Diameter

Walker Airsep

AirSep Replacement Diesel Air Filter Elements - Tapered, 9" Diameter

Available in 3 options

$122.79 - $158.50

In Stock
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Walker Airsep

Airsep Replacement Springs

Available in 3 options

$17.07 - $21.36

In Stock
ccv55274 of Racor Replacement Elements for CCV6000 Closed Crankcase Ventilation Unit

Racor

CCV55274 Crankcase Ventilation Replacement Elements for CCV6000 Series

Available in 2 options

$87.08 - $128.89

In Stock
ccv55251 of Racor CCV Hose Barbs

Racor

CCV Hose Barbs

Available in 5 options

$22.50 - $33.58

In Stock
195 of Walker Airsep AirSep Replacement Diesel Air Filter Elements - Tapered, 9" Diameter

Walker Airsep

AirSep Replacement Diesel Air Filter Elements - Tapered, 7-1/2" Diameter

Available in 2 options

$108.24

In Stock
SERVICE KIT CUMMINS QSC

Walker Airsep

CCE Field Service Kit - Cummins QSC Engines

SKU: 200482 | Item ID: WLK 1000267

$535.00

In Stock
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Walker Airsep

Field Service Kit - 10" XL with 3" First Stage

SKU: 432216 | Item ID: WLK 1002332

$312.99

In Stock
ccv8000 of Racor Closed Crankcase Ventilation Assemblies 800-1600 HP

Racor

Closed Crankcase Ventilation Assemblies 800-1600 HP

Available in 4 options

$713.84 - $741.98

In Stock
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Walker Airsep

AirSep Oil Return Check Valve

SKU: 440183 | Item ID: WLK MD105

$101.73

In Stock
1002032 of Walker Airsep CCE Field Service Kit - 8" Coalescers Only

Walker Airsep

CCE Field Service Kit - 8" Coalescers Only

SKU: 389721 | Item ID: WLK 1002032

$312.99

In Stock
SERVICE KIT CUMMINS QSB

Walker Airsep

CCE Field Service Kit - Cummins QSB Engines

SKU: 200481 | Item ID: WLK 1000266

$535.00

In Stock
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Walker Airsep

Field Service Kit - C30-C32 12" Coalescer Kit Only

SKU: 390665 | Item ID: WLK 1000821

$495.00

In Stock
1002586 of Walker Airsep Field Service Kit - 10" Coalescers with Rings

Walker Airsep

Field Service Kit - 10" Coalescers with Rings

SKU: 457577 | Item ID: WLK 1002586

$312.99

In Stock
High-Performance Air Filter Kit - Volvo D4-D6

Walker Airsep

High-Performance Air Filter Element - Volvo D4-D6

SKU: 392250 | Item ID: WLK 1000786

$128.50

In Stock
ccv55222 of Racor Replacement Element for CCV8000 Closed Crankcase Ventilation Unit

Racor

CCV55222 Crankcase Ventilation Replacement Elements for CCV8000 Series

Available in 2 options

$100.11 - $147.89

In Stock
1000919 of Walker Airsep Field Service Kit - Volvo Round Filter

Walker Airsep

Field Service Kit - Volvo Round Filter

SKU: 392251 | Item ID: WLK 1000919

$91.36

In Stock
Open Crankcase Ventilation Systems

Racor

Replacement Filter Element for Open Crankcase Vent

Available in 2 options

$175.77 - $206.49

In Stock
ccv6000-08l of Racor Closed Crankcase Ventilation Assemblies 400-800 HP

Racor

Closed Crankcase Ventilation Assemblies 400-800 HP

Available in 2 options

$573.96

In Stock
cd200 of Walker Airsep AirSep Replacement Diesel Air Filter Elements - Straight, 9" Diameter

Walker Airsep

AirSep Replacement Diesel Air Filter Elements - Straight, 9" Diameter

Available in 2 options

$156.51 - $163.78

In Stock
REPLACEMENT BREATHER HOSE 1-1/4 90

Walker Airsep

Airsep Replacement Breather Hose

SKU: 200474 | Item ID: WLK CD2761

$23.07

In Stock
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Walker Airsep

AirSep Replacement Diesel Air Filter Elements - Straight, 12" Diameter

Available in 2 options

$102.90 - $219.11

In Stock
CLEANING KIT AIR FILTER SPRAY

Walker Airsep

AirSep Red Spray Cleaning Kit - for Large Red Air Filters

SKU: 200472 | Item ID: WLK AAF1016

$61.36

In Stock
40-1020 of Walker Airsep 40-1020 Replacement Element

Walker Airsep

40-1020 Replacement Element

SKU: 390394 | Item ID: WLK 40-1020

$128.95

In Stock
ccv55114 of Racor CCV Hump Hose Fittings

Racor

CCV Hump Hose Fittings

Available in 3 options

$79.67 - $95.53

In Stock
pa30204 of Baldwin Filters Crankcase Breather

Baldwin Filters

Crankcase Breather - Closed Crankcase Ventilation

SKU: 1005821 | Item ID: BLD PA30204

$41.37

In Stock
AIR FILTER RESTRICTION GAUGE

Walker Airsep

Airsep Replacement Restriction Indicator / Gauge

SKU: 200475 | Item ID: WLK CD210

$18.71

In Stock
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Walker Airsep

Vacuum Regulator Assembly - Vacuum Limiter

SKU: 213684 | Item ID: WLK VR1000

$142.57

In Stock
AirSep Kit for Cummins 6CTA 420/450HP Engines

Walker Airsep

AirSep Kit for Cummins 6CTA - 420/450HP Engines

SKU: 1016129 | Item ID: WLK KW3866450

$789.84

In Stock
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Walker Airsep

CCE Field Service Kit - 10" XL Coalescers with 4" First Stage Filters

SKU: 440482 | Item ID: WLK 1002300

$312.99

In Stock
AIR FILTER SPRING REMOVAL TOOL

Walker Airsep

AirSep Spring Removal Tool

SKU: 200479 | Item ID: WLK ST500196

$15.99

In Stock
mc29-47441 of Barr Marine Upper Thermostat Housing

Barr Marine

Upper Thermostat Housing

SKU: 150195 | Item ID: BAR MC29-47441

$36.17

In Stock
AIR FILTER SEALANT 3 OZ

Walker Airsep

Airsep Sealing Compound

SKU: 200480 | Item ID: WLK CD955

$14.21

In Stock
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Walker Airsep

Caterpillar AirSep Closed Crankcase Ventilation Kit - 3304 Engines

SKU: 205555 | Item ID: WLK KW3304-N

$787.67

In Stock
CLEANING KIT BLUE CUMMINS QSB/C

Walker Airsep

AirSep Blue Cleaning Kit - for Blue Air Filters

SKU: 200470 | Item ID: WLK BAF2016

$38.50

In Stock
BYPASS INDICATOR REPLACEMENT KIT

Racor

Replacement Closed Crankcase Ventilation Bypass Indicator

SKU: 134877 | Item ID: RAC CCV55081

$16.13

In Stock
CLEANING KIT RED STANDARD

Walker Airsep

AirSep Red Standard Cleaning Kit - For Red Air Filters

SKU: 200471 | Item ID: WLK DDF9016

$42.79

In Stock
filters of Walker Airsep Field Service Kit - MTU Series 60 or Series 2000 - Traditional AirSep

Walker Airsep

Field Service Kit - MTU Series 60 or Series 2000 - Traditional AirSep

SKU: 456500 | Item ID: WLK 1001138

$380.99

In Stock
Closed Crankcase Oil/Air Separator Systems

Walker Airsep

AirSep CCV Kit Cummins 6BTA Engines - 250 HP- 370 HP

SKU: 208634 | Item ID: WLK KW3866425

$863.01

In Stock
Tap Sleeves

Racor

CCV Tap Sleeves

Available in 3 options

$213.06 - $374.94

In Stock
SERVICE KIT CUMMINS 6BTA

Walker Airsep

CCE Field Service Kit - Cummins 6BTA Engines

SKU: 200483 | Item ID: WLK 1000282

$561.57

Special Order Only
1-45 results of 64

Prevent oily engine blow-by from accumulating in bilges and cabins with closed crankcase ventilation (CCV) systems from leading brands. Available at Fisheries Supply, our crankcase filters capture damaging hydrocarbons, preventing discharge into living spaces and overboard. We offer complete CCV filter kits from Racor and Sea Star featuring high-flow oil-separating elements. The filters connect via hoses to clean closed crankcase ventilation. Replaceable filter elements prevent replacing entire assemblies. CCV systems also reduce makeup oil consumption. Our marine engine specialists can help you select the optimal crankcase ventilation and separator setup. We'll match filters and mounting locations to your engine model for proper blow-by flow and drainage. Trust us for filter knowledge - whether meeting emissions regulations or simply keeping your boat clean. Stop oily buildup and maintain air quality with genuine Walker Airsep, Racor and other CCV systems from Fisheries Supply.