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Crankcase Vent Breather Filters
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K&N breather filters and crankcase vent filters are designed for the high demands of racing. These crankcase vent filters are available with rubber and chrome air filter tops, with or without heat shields and come in a variety of mounting types to meet just about any valve cover need.
Note: Legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway. See knfilters.com for CARB status on each part for a specific vehicle.
Steel Base Crankcase Vent Filters - One Piece Design For Competition Use
Steel base crankcase vent filters have vent tubes added to their base. Filters consist of a one piece design with a rubber or chrome top. Filters with mounting studs can be mounted remotely, but require vent hoses and clamps. Filters mounted direct can be pressed into rubber grommets in valve covers. All baseplates are chrome plated. Tubes are zinc.
| 2" O.D.; 1 1/2" H | 3" O.D.; 2" H | |||
| Vent Diameter | Rubber Top Filter | Chrome Top Filter with Stud | Rubber Top Filter | Chrome Top Filter |
| 3/8" O.D. | 62-1000 | 62-1090 | N/A | N/A |
| 1/2" O.D. | 62-1010 | 62-1100 | 62-1050 | 62-1140 |
| 1/2" O.D. | 62-10152 | N/A | N/A | N/A |
| 1/2" O.D. | 62-12501 | 62-13001 | N/A | N/A |
| 5/8" O.D. | 62-1020 | 62-1110 | 62-1060 | 62-1150 |
| 3/4" O.D. | 62-1030 | 62-1120 | 62-1070 | 62-1160 |
| 1" O.D. | 62-1040 | 62-1130 | 62-1080 | 62-1170 |
Notes: 1) Special 3" H Filter; 2) 2" Chrome Top.
Steel Base Crankcase Vent Filters with Shield
Zinc plated steel base plate with attached vent tube. Designed to push in to existing rubber breather grommets. All filters are 3" O.D. with deflector shields and 2 1/2" tall.
| Grommet Size | K&N Vent Filter |
| 1/2" I.D. | 62-1517 |
| 5/8" I.D. | 62-1518 |
| 3/4" I.D. | 62-1519 |
| 1" I.D. | 62-1520 |
1" Push-On Rubber Base Crankcase Vent Filter with Chrome Top
This crank case vent filter has a 1" flange, 2" outside diameter and is 1-1/2" in height. It is designed to push on to existing rubber breather grommets.
K&N Crank Case Breather Filter Part#: 62-1220
Rubber Base Crankcase Vent Filters
Filters are designed to clamp directly to metal or plastic tubing. Ideal for engines, transmissions, oil and gas tanks on racing vehicles.
| Flange I.D. | Filter Diameter | Filter Height | Rubber Top Filter | Chrome Top Filter | Carbon Fiber Custom Top Filter |
| 5/16" | 1 3/8" | 1 1/8" | N/A | 62-2470 | |
| 9/16" | 1 3/8" | 1 1/8" | N/A | 62-2480 | |
| 3/8" | 2" | 1 1/2" | N/A | 62-1320 | 62-1570 |
| 3/8" or 1/2" 2" | 1 3/4" | N/A | 62-1600BL (Blue) | ||
| 3/8" or 1/2" 2" | 1 3/4" | N/A | 62-1600RD (Red) | ||
| 3/8" or 1/2" 2" | 1 3/4" | N/A | 62-1600WT (White) | ||
| 1/2" | 2" | 1 1/2" | N/A | 62-1330 | |
| 5/8" | 2" | 1 1/2" | N/A | 62-1340 | |
| 3/4" | 1 3/8" | 1 1/8" | 62-1560 | N/A | |
| 3/4" | 2" | 1 1/2" | N/A | 62-1360 | |
| 3/4" | 2" | 2 1/2" | RU-3630 | N/A | |
| 1" | 2" | 1 1/2" | N/A | 62-1370 | |
| 1" | 3" | 2 1/4" | 62-1410 | 62-1420 | |
| 1 1/4" | 3" | 2 1/2" | 62-1380 | 62-1390 | |
| 1 3/8" | 3" | 2 1/2" | 62-1430 | 62-1440 | |
| 1 1/2" | 3" | 2 1/2" | 62-1450 | 62-1460 | |
| 1 3/4" | 3" | 2 1/2" | 62-1470 | 62-1480 |
Rubber Base Crankcase Vent Filters with Shield
Universal "Clamp-On" for valve covers with existing vent tubes. All filters are 3"
| Vent Flange Diameter | K&N Vent Filter |
| 1" I.D. | 62-1511 |
| 1 1/4" I.D. | 62-1512 |
| 1 3/8" I.D. | 62-1513 |
| 1 1/2" I.D. | 62-1514 |
| 1 3/4" I.D. | 62-1515 |
Screw-In, Push-In, and Covered Crankcase Vent Filters & Valve Cover Adapters
K&N Universal "Push-In" style breather filters for valve covers use a washable and reusable air filter media and can be pushed directly into the valve cover where venting is needed.
