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Vehicle Info NeededK&NPART NUMBER: 599-SU-4000
SU-4000 Dirt Bike Replacement Air Filter Select Suzuki DR-Z400/DR-Z400E/DR-Z400S/DR-Z400SM, Kawasaki KLX400R/KLX400SR
$6899
Ships on Nov 03, 2026
Lowest Price GuaranteeSuzuki
Dirt Bike Replacement Air FilterSelect Suzuki DR-Z400, Suzuki DR-Z400E, Suzuki DR-Z400S, Suzuki DR-Z400SM, Kawasaki KLX400R, Kawasaki KLX400SR
K & N ENGINEERING INC SU-4000 Features:
K& N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K& N filter element. K& N replacement air filters are washable and reusable and provide high air-flow with excellent filtration.Extended-Use Air Filters
K&N Powersport Air Filters provide excellent filtration that will increase your ride's horsepower and acceleration. These washable and reusable filters offer maximum off-road protection and fit factory air boxes with an easy drop-in design. Street vehicle filters feature K&N's Million-Mile Limited Warranty.
Part TypeAir Filter
Product LineK&N Powersport Air Filters
BrandK&N
Package Height3 in (76 mm)
Package Width8.7
Package Length8.7
Weight1.05 PG
Weight1.1 lb (0.5 kg)
Part CategoryPerformance Parts
Flange Length0 in (0 mm)
Top MaterialNone
Top StyleRubber
Package Contents1 Air Filter, 1 K&N 1oz Sealing Grease
Air Filter Large End Diameter6.313 in (160 mm)
Top Material/FinishNone
Base Outside Diameter6.313 in (160 mm)
Frame DesignFlexible
Flange Angle0 degrees
Flange Angle (Deg)0
FlangesNone
QuantitySold individually
Air Filter ShapeTapered Conical
Inner WireNo
Top Outside Diameter5.438 in (138 mm)
Oil IncludedYes
Filter Re-Oiling Amount0.64 oz (19 ml)
Product StyleTapered Conical Air Filter
Flange Inside Diameter0 in (0 mm)
Base Inside Diameter5.125 in (130 mm)
Part FitmentDirect Fit
WashableYes
Vendor Part NumberSU-4000
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations
