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K&N High-Flow Performance Air Intake System for 3.7L Engines by K&N Filters

Part no: KN-771540KP

K&N High-Flow Performance Air Intake System for 3.7L Engines
$375.99 + free Shipping
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Please Verify Fitment

This product fits only specific vehicles. Select your vehicle to ensure it fits.

This item is excluded from all sales and promotions.

Product Details

Important Notes:

  • Mass Air Flow Sensor Adapter included when required
  • All intake tube ports needed for the specified applications are included


  • 2004-2007 Jeep Liberty KJ with 3.7L Engine


Want more usable power and acceleration throughout your engine's RPM range? K&N High-Flow Performance Air Intake System improves air flow and allows your engine to inhale a larger amount of air than it would from the stock air intake. This is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Jeep Liberty models. The restrictive factory air filter and air intake housing on your vehicle are replaced by this K&N air intake system which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow. It comes with a chrome topped K&N high-flow air filter and a heat shield that installs into the previous air box space. Air is directed through the intake tube into the engines throttle body for a guaranteed power gain. The intake tube has an attractive chrome-like finish that's made to last and it accommodates the factory crank case vent hose. The over-sized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points.

Product Details:

  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Free-flowing aluminum tube
  • Replaces entire factory air intake system
  • Lasts up to 100,000 miles before service is required
  • Easy to install, usually in 90 minutes or less
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty
  • Product Style: 77 Series Kits

Product Specifications:

  • Estimated Horsepower Gain: 5.92 HP @ 4054 RPM
  • Air Filter Color: Red
  • Air Filter Outlet Shape: Round
  • Air Filter Height: 6" (152 mm)
  • Air Filter Large End Diameter: 7.5" (191 mm)
  • Weight: 11.6 lb (5.2 kg)
  • Air Filter Material: Cotton Gauze
  • Intake Pipe Color / Finish: Polished
  • TUV Approved (Europe): No
  • Vacuum Tubing Included: Yes
  • Street Legal In All US States: Yes

Parts Included:

  • (1) High-Flow Performance Air Intake System for 3.7L Engines

Years Covered:

2004, 2005, 2006 and 2007

For California residents: Proposition 65 Warning

Vehicle Fitment


Additional Information

BrandK&N Filters
SKU Aliases77-1540KP
Engine Type3.7L
Fuel TypeGas

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