K&N 57S-4001 57i Gen II Cold Air Intake for 2011-2019 Ford Ranger 3.2L L5 Diesel

Vehicle Fitment

• 2011-2019 Ford Ranger (TKE / T6 Platform) - XL, XLS, XLT, Wildtrak, 3.2L Inline-5 Turbo Diesel (Duratorq), 2WD and 4WD (4x4)

Fitment Notes

• Fits international (non-North American) Ford Ranger only - does not fit the 2019+ North American Ford Ranger (P375 platform, 2.3L EcoBoost petrol)
• 3.2L L5 Turbo Diesel engine only - does not fit Ranger variants equipped with the 2.2L or 2.5L engines
• Not legal for sale or use in California or states adopting California emission standards
• Compatible with both manual and automatic transmission variants

Features

• Dyno-verified gain of +16.2 HP at 1,850 RPM over the factory air intake assembly
• High-density cross-linked polyethylene (HDPE) roto-molded intake tube reduces air temperature and noise compared to metal alternatives
• Aerodynamically engineered tube eliminates restriction between the air filter and engine for improved airflow throughout the RPM range
• Oversized conical cotton gauze air filter serviceable up to 100,000 miles under normal highway driving conditions
• Replaces the entire factory air filter and intake housing for maximum restriction reduction
• Connects to factory mounting points - installs in 90 minutes or less with commonly available tools
• Improves throttle response and delivers a more pronounced engine induction sound
• Backed by K&N's No-Hassle Lifetime Limited Warranty

Specifications

• Part Number: 57S-4001
• Series: K&N 57i Generation II Induction Kit
• Estimated Horsepower Gain: +16.2 HP @ 1,850 RPM
• Intake Tube Material: High-Density Cross-Linked Polyethylene (HDPE), Roto-Molded
• Intake Tube Color/Finish: Black
• Air Filter Style: Oversized Conical
• Air Filter Color: Red
• Air Filter Material: Oiled Cotton Gauze
• Filter Service Interval: Up to 100,000 miles (normal highway driving)
• Street Legal (All US States Except CA and CARB States): Yes
• TUV Approved: Verify for specific market
• Warranty: No-Hassle Lifetime Limited

Included Components

• 1x Roto-molded HDPE intake tube (black)
• 1x Oversized conical K&N high-flow air filter (red, pre-oiled cotton gauze)
• 1x Hardware and mounting kit

Product Description

The K&N 57S-4001 is a 57i Generation II cold air induction kit built specifically for the international Ford Ranger TKE/T6 equipped with the 3.2L inline-5 Turbo Diesel engine, covering model years 2011 through 2019 across XL, XLS, XLT, and Wildtrak trims in both 2WD and 4WD configurations. The system replaces the stock airbox and paper filter with an aerodynamically engineered roto-molded HDPE intake tube paired with an oversized conical cotton gauze filter, delivering a dyno-proven gain of +16.2 HP at 1,850 RPM. The non-metallic tube construction also reduces intake air temperature and lowers induction noise compared to traditional metal tube kits.

Installation uses the factory air intake mounting location and connects directly to existing hardware, making it a practical upgrade completable in under 90 minutes with standard tools. The included high-flow cotton gauze filter is pre-oiled and requires cleaning only every 100,000 miles, eliminating the recurring cost of disposable paper elements. Backed by K&N's No-Hassle Lifetime Limited Warranty, the 57S-4001 is a long-term performance solution for Ranger diesel owners seeking measurable power and throttle response gains without permanent engine bay modifications.