AIR & OIL FILTERS
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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
26.98
G -----
604538 28.22
G -----
1/2" O.D.
604529
26.98
G
604534 27.59
G
604539 28.22
G
604543 28.81
G
1/2" O.D.
604530
2
30.67
G -----
-----
-----
1/2" O.D.
604553
1
28.22
G -----
604554 29.44
G -----
5/8" O.D.
604531
26.98
G
604535 27.59
G
604540 28.22
G
604544 28.81
G
3/4" O.D.
604532
26.98
G
604536 27.59
G
604541 28.22
G
604545 28.81
G
1" O.D.
604533
26.98
G
604537 27.59
G
604542 28.22
G
604546 28.81
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 36.80
G
5/8" I.D.
604582 36.80
G
3/4" I.D.
604583 36.80
G
1" I.D.
604584 36.80
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 26.98
G -----
9/16"
1 3/8"
1-1/8"
-----
604589 26.98
G -----
3/8"
2"
1-1/2"
-----
604556 26.98
G
604587 51.03
G
1/2"
2"
1-1/2"
-----
604557 26.98
G -----
5/8"
2"
1-1/2"
-----
604558 26.98
G -----
3/4"
1 3/8"
1-1/8"
604586 26.98
G -----
-----
3/4"
2"
1-1/2"
-----
604559 26.98
G -----
3/4"
2"
2-1/2"
607835 49.11
G -----
-----
1"
2"
1-1/2"
-----
604560 26.98
G -----
1"
3"
2-1/4"
604564 25.16
G
604565 27.59
G -----
1-1/4"
3"
2-1/2"
604561 25.16
G
604562 27.59
G -----
1-3/8"
3"
2-1/2"
604566 25.16
G
604567 27.59
G -----
1-1/2"
3"
2-1/2"
604568 25.16
G
604569 27.59
G -----
1-3/4"
3"
2-1/2"
604570 25.16
G
604571 27.59
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 33.72
G
1-1/4" I.D.
604576 33.72
G
1-3/8" I.D.
604577 33.72
G
1-1/2” I.D.
604578 33.72
G
1-3/4" I.D.
604579 33.72
G
