AIR & OIL FILTERS
603
2015 STREET CATALOG
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K&N CRANKCASE VENT FILTERS
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.
VENT
DIAMETER
2" O.D.; 1 1/2" H
RUBBER TOP
PART #
3" O.D.; 2" H
RUBBER TOP
PART #
2" O.D.; 1 1/2" H
CHROME TOPW/STUD
PART #
3" O.D.; 2" H
CHROME TOP
PART #
3/8" O.D.
604528
29.14
G -----
604538 30.48
G -----
1/2" O.D.
604529
29.14
G
604534 29.80
G
604539 30.48
G
604543 31.11
G
1/2" O.D.
604530
2
33.12
G -----
-----
-----
1/2" O.D.
604553
1
30.48
G -----
604554 31.80
G -----
5/8" O.D.
604531
29.14
G
604535 29.80
G
604540 30.48
G
604544 31.11
G
3/4" O.D.
604532
29.14
G
604536 29.80
G
604541 30.48
G
604545 31.11
G
1" O.D.
604533
29.14
G
604537 29.80
G
604542 30.48
G
604546 31.11
G
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
PART #
3/2" I.D.
604581 39.74
G
5/8" I.D.
604582 39.74
G
3/4" I.D.
604583 39.74
G
1" I.D.
604584 39.74
G
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
PART #
CHROME TOP
PART #
CARBON FIBER
CUSTOMTOP PART #
5/16"
1 3/8"
1-1/8"
-----
604588 29.14
G -----
9/16"
1 3/8"
1-1/8"
-----
604589 29.14
G -----
3/8"
2"
1-1/2"
-----
604556 29.14
G
604587 55.11
G
1/2"
2"
1-1/2"
-----
604557 29.14
G -----
5/8"
2"
1-1/2"
-----
604558 29.14
G -----
3/4"
1 3/8"
1-1/8"
604586 29.14
G -----
-----
3/4"
2"
1-1/2"
-----
604559 29.14
G -----
3/4"
2"
2-1/2"
607835 53.04
G -----
-----
1"
2"
1-1/2"
-----
604560 29.14
G -----
1"
3"
2-1/4"
604564 27.17
G
604565 29.80
G -----
1-1/4"
3"
2-1/2"
604561 27.17
G
604562 29.80
G -----
1-3/8"
3"
2-1/2"
604566 27.17
G
604567 29.80
G -----
1-1/2"
3"
2-1/2"
604568 27.17
G
604569 29.80
G -----
1-3/4"
3"
2-1/2"
604570 27.17
G
604571 29.80
G -----
RUBBER BASE CRANKCASE VENT
FILTERS WITH SHIELD
Universal “Clamp-On” for valve covers with existing
vent tubes. All filters are 3" O.D. with deflector shields
and 2 1/2" tall.
GROMMET SIZE
PART #
1" I.D.
604575 36.42
G
1-1/4" I.D.
604576 36.42
G
1-3/8" I.D.
604577 36.42
G
1-1/2” I.D.
604578 36.42
G
1-3/4" I.D.
604579 36.42
G
