£64.82

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3978XD

E-3978XD

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Price History & Forecast

Grey patches = out of stock. Cheaper = lower on the chart. Hover for exact prices.

Last 50 days · 50 data points (no recent data)

Historical
Generating forecast…
£64.82 £61.58 £62.88 £64.17 £65.47 £66.76 £68.06 23 April 2026 05 May 2026 17 May 2026 29 May 2026 11 June 2026

Price Distribution

Price distribution over 50 days • 1 price levels

Days at Price
50 days 0 13 25 38 50 £65 Days at Price

Price Analysis

Most common price: £65 (50 days, 100.0%)

Price range: £65 - £65

Price levels: 1 different prices over 50 days

Description

K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle or outdoor power small engine. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.

Key Features

ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicle’s acceleration by up to 10%

EASY INSTALLATION: Pre-oiled and ready to drop into your factory air box. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains

SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters

ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters

WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants

LOW-MAINTENANCE DESIGN: 50,000 miles before your first cleaning under normal highway driving conditions

HIGH QUALITY: Made in America

RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrack—made for your vehicle

Product Specifications

Brand
K&N
Domain
Amazon UK
Release Date
13 July 2013
Listed Since
07 August 2012

Barcode

No barcode data available

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