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Street Metal Intake SystemHarley-Davidson Motorcycles Click More Info for Applications
K & N ENGINEERING INC RK-3937 Features:
K& N's Street Metal Series High-Flow Air Intake Systems provide attractive styling, offer increased airflow and deliver more horsepower & torque to your Harley-Davidson motorcycle. These air intake systems eliminate the stock OE air cleaner and replace it with a complete high-flow air intake system to increase power. The sturdy, custom aluminum backing plate mounts directly to the throttle body via an aluminum integrated, internal-run breather system. The air intake system comes with a K& N Air Filter for high air flow and long service intervals. The K& N air filter is washable, reusable, pre-oiled and ready for installation. To help absorb vibration, a durable mounting gasket is also included. A scalloped teardrop-shaped custom cover gives this air intake the type of edge you'd only expect to see on full-custom choppers.Part TypeAir Cleaner Assembly
BrandK&N
Package Height4.87
Package Width9.5
Package Length11.75
Weight4.76 PG
Weight4.8 lb (2.177 kg)
Part CategoryPerformance Parts
Overall Height4.75 in (120.7 mm)
Estimated Horsepower Gain10.67 HP @ 4882 RPM
Filter ColorRed
Carb Eo NumberD-269-55
Size9-11
Air Cleaner Top DesignGrooved
Clamp StyleNo Clamps Required
Rpm4882
Air Cleaner ShapeTeardrop
Top StyleAluminum - Scalloped Design
Filter Height2.188 in (55.575 mm)
Air Filter Outlet ShapeNot Flanged
Air Cleaner Top MaterialAluminum
Inlet Diameter2.25 in (57.15 mm)
Clamps IncludedNo Clamps Included
Air Filter Height2.188 in (56 mm)
StyleStandard
Top Material/FinishChrome
Horse Power Increase11 HP
Air Filter Inside Diameter5.25 in (133.35 mm)
Neck Flange2.25 in (57 mm)
ColorRED
QuantitySold as a kit
Mounting Hardware IncludedYes
Filter MaterialCotton Gauze
Air Filter ShapeUnique
Air Cleaner FilterRed cotton gauze
Replacement FilterE-3333
Wing Nut IncludedNo
Clamp MaterialNo Clamps Required
Product StyleMotorcycle Intake System
Air Cleaner Top FinishChrome
Part FitmentDirect Fit
Air Cleaner BaseBlack powdercoated aluminum
Vendor Part NumberRK-3937
Package Qty1
Package TypeEA
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