FUEL/AIR SYSTEMS
UNIVERSAL CLAMP-ON AIR FILTERS
K&N universal air filters come in three styles – round
straight, oval tapered and round tapered
All clamp directly to the carburetor throat, replacing the
stock airbox and filter element
RU-2750
RU-177
1011-0985
Match the OD of your carb throat with the ID of the filter
(given in inches and millimeters)
UNIVERSAL OVAL TAPERED TYPE
FLANGE ID
OVAL DIM.
LENGTH
FLANGE POSITION
PART #
SUG. RETAIL
2 1 / 8
3” x 4”
5”
Offset
RU-2750
$74.95
2 3 / 8
3 3 / 4 ” x 6 1 / 4
6 3 / 4
Dual flanged
1011-0495
95.95
UNIVERSAL ROUND STRAIGHT TYPE
OVERALL DIMENSIONS
LENGTH
FLANGE POSITION
PART #
SUG. RETAIL
OVERALL DIMENSIONS
LENGTH
FLANGE POSITION
PART #
SUG. RETAIL
1 11 / 16 ” ID (43MM)
2 7 / 16 ” ID (62MM) (CONT)
3”
4”
Centered
RU-20
$59.95
3 1 / 2
5”
Centered
RU-81
$60.95
3”
5”
Centered
RU-0210
55.95
3 1 / 2
6”
Centered
RU-82
60.95
1 3 / 4 ” ID (44MM)
3 3 / 4
4”
Angled 20°/2” lg.
RU-175
56.95
3 1 / 2
5”
Centered
RU-36
61.95
3 3 / 4
5”
Angled 20°/2” lg.
RU-176
61.95
1 7 / 8 ” ID (48MM)
3 3 / 4
6”
Angled 20°/2” lg.
RU-177
57.95
3”
4”
Centered
RU-40
59.95
5 1 / 2
3”
Offset
RU-87
77.95
3”
4”
Angled 10°
RU-128
56.95
2 1 / 2 ” ID (63.5MM)
2 1 / 16 ” ID (52MM)
3 1 / 2
4”
Angled 5°
RB-70
58.95
3 1 / 2
4”
Centered
RU-50
61.95
3 1 / 2
5”
Angled 5°
RB-71
63.95
3 1 / 2
6”
Centered
RU-52
69.95
3 1 / 2
5”
Centered
1011-1583
60.95
3 1 / 2
5”
Angled 17 1 / 2 °
RU-178
64.95
3 1 / 2
6”
Angled 5°
RB-72
60.95
3 1 / 2
5”
Centered
1011-3207
60.95
3 1 / 2
6”
Centered
1011-0787
56.95
2 1 / 8 ” ID (54MM)
2 3 / 4 ” ID (70MM)
3 1 / 2
4”
Angled 5°
RB-50
61.95
4”
5”
Angled 10°
RU-146
61.95
2 1 / 4 ” ID (57MM)
4”
6”
Angled 10°
RU-147
66.95
3 1 / 2
4”
Centered
RU-60
57.95
4”
7”
Angled 10°
RU-148
64.95
3 1 / 2
5”
Centered
RU-61
63.95
2 11 / 16 ” ID (68MM)
3 1 / 2
6”
Centered
RU-62
60.95
4 1 / 2
4”
Centered
RU-90
67.95
3 1 / 2
6”
Angled 10°
RU-109
60.95
4 1 / 2
5”
Centered
RU-91
69.95
3 1 / 2
4”
Angled 20°
RU-170
61.95
2 7 / 8 ” ID (73MM)
3 1 / 2
5”
Angled 20°
RU-171
63.95
4”
6”
Centered
RU-162
62.95
3 1 / 2
6”
Angled 20°
RU-172
63.95
3” ID (76MM)
5 1 / 2
2 1 / 2
Offset
RU-65
68.95
4 1 / 2
4”
Angled 5°
RB-0900
59.95
2 7 / 16 ” ID (62MM)
4 1 / 2
5”
Angled 5°
RB-0910
62.95
3 1 / 2
4”
Centered
RU-80
56.95
5”
5”
Centered
RU-2430
70.95
UNIVERSAL ROUND TAPERED TYPE
MOUNTING
END CAP
FILTER
FLANGE
SUG.
MOUNTING
END CAP
FILTER
FLANGE
SUG.
FLANGE ID
SIZE
LENGTH
POSITION
PART #
RETAIL
FLANGE ID
SIZE
LENGTH
POSITION
PART #
RETAIL
1 1 / 8 ” (29mm)
2” x 2 1 / 4
2 1 / 2
Centered
RC-2540
$47.95
1 15 / 16 ” (49mm)
2” x 3”
3”
Centered
RC-106
$35.95
1 3 / 8 ” (35mm)
2” x 2 1 / 2
2 1 / 4
Centered
RC-79
41.95
2 1 / 16 ” (52.5mm)
2” x 3 1 / 2
4”
Centered
RC-120
63.95
1 9 / 16 ” (40mm)
2” x 3”
3”
Centered
RC-231
66.95
2 1 / 8 ” (55mm)
2” x 3”
3”
Centered
RC-233
68.95
1 11 / 16 ” (43mm)
2” x 3”
2 3 / 4
Centered
RC-107
69.95
2 1 / 4 ” (57mm)
2” x 3 1 / 2
4”
Centered
RC-125
64.95
1 13 / 16 ” (46mm)
2” x 3”
3”
Centered
RC-232
68.95
3 15 / 16 ” (100mm)
5 7 / 16 ” x 4 1 / 2
5”
Centered
1011-0985
90.95
1 7 / 8 ” (48mm)
2” x 3”
3”
Centered
RC-109
68.95
4 1 / 2 ” (114mm)
4 1 / 2 ” x 5 7 / 8
6”
Centered
1011-1053
69.95
1 7 / 8 ” (48mm)
2” x 3”
3 11 / 16
Angled 10°
RC-129
65.95
2 3 / 4 ” (70mm)
3 1 / 2 ” x 5.03”
5 1 / 2
Centered
1011-2003
78.95
BF-1
1011-1025
1011-1026
PRE FILTER/ MUD FOAM
Open-cell polyurethane foam
Use in conjunction with stock air filter to trap
larger particles and debris
BULK FILTER FOAM
Easy cut to fit for any air box
Sheets of foam in several densities for fabricating air filters
Extends filter life, and cleaning intervals of stock air filter
Perfect for vintage and
Can be oiled like stock filter for best performance
custom applications
SUG. RETAIL ............ $15.95 CROSS
Also can be used to displace mud on helmet visor in muddy conditions
DESCRIPTION
SIZE
PART #
Keeps mud from packing next to foot pegs, brake and shifter controls
Green, fine foam (65 PPI)
12” x 16” x 5 /8”
BF-1
Dimensions: 11” x 12” x 3 / 4
Black, fine foam (60 PPI)
12” x 16” x 3 /8”
1011-1025
Made in the U.S.A.
Red, coarse foam (40 PPI)
12” x 16” x 3 /8”
1011-1026
SUG. RETAIL ............ $14.95 PART #
M200-30
Black, coarse foam (30 PPI)
12” x 24” x 3 /8”
BF-2
2017 PARTS UNLIMITED ATV/UTV