£78.24

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3690

E-3690

Price data last checked 145 day(s) ago - refreshing...

View at Amazon

We'll watch every seller, every day. One email when your price arrives.

It has never been this cheap. We have no record of a lower price.

£78 today · cheaper than every other day in the last 10 months

NEW HERE?

Amazon shows you one price. We show you all of them.

Tosheroon watches Amazon prices so you don't have to. Every product on Amazon has a price history — we make it visible. Set the price you'd actually pay, and we'll email you the second it gets there. No app, no account, one email.

WHAT'S ON THIS PAGE

↓ Price chart
when this has been cheap or pricey
↓ Forecast
where the price is heading next
↓ Statistics
all-time high & low, recent range
↑ Price alert
name your number, we'll email you

Price History & Forecast

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

Last 164 days • 164 data points (No recent data available)

Historical
Generating forecast...
£106.70 £75.39 £82.22 £89.05 £95.89 £102.72 £109.55 01 August 2025 10 September 2025 21 October 2025 01 December 2025 11 January 2026

Price Distribution

Price distribution over 164 days • 5 price levels

Days at Price
Current Price
8 days · current 43 days 28 days 46 days 39 days 0 12 23 35 46 £78 £81 £84 £91 £107 Days at Price

Price Analysis

Most common price: £91 (46 days, 28.0%)

Price range: £78 - £107

Price levels: 5 different prices over 164 days

Description

K&N Replacement air filter 279mm OD, 235mm ID, 152mm Height (E-3690)

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
Model
E-3690
Format
Automotive
Domain
Amazon UK
Release Date
13 July 2013
Listed Since
07 August 2012

Barcode

No barcode data available

Similar Products You Might Like

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3530
99% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3530

K&N

£61.27 06 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3551
99% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3551

K&N

£80.05 11 Feb 2026
K&N X-Stream Top Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Shape: Round Tapered, 66-3300R
99% match

K&N X-Stream Top Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Shape: Round Tapered, 66-3300R

K&N

£277.68 01 Feb 2026
K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2 125 In, Filter Height: 5 In, Flange Length: 0 625 In, Shape: Oval Straight, RU-2754
99% match

K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 2 125 In, Filter Height: 5 In, Flange Length: 0 625 In, Shape: Oval Straight, RU-2754

K&N

£91.67 27 Mar 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3988
99% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3988

K&N

£64.32 12 Jan 2026
K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 6 In, Flange Length: 0 625 In, Shape: Round Tapered, RU-5141
99% match

K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 4 In, Filter Height: 6 In, Flange Length: 0 625 In, Shape: Round Tapered, RU-5141

K&N

£64.99 20 Feb 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-2410
99% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-2410

K&N

£67.61 21 Apr 2026
K&N X-Stream Top Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Shape: Round, 66-3090
99% match

K&N X-Stream Top Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Shape: Round, 66-3090

K&N

£235.85 01 Apr 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter:Compatible with Select 1999-2013 JOHN DEERE/HITACHI/KUBOTA/BOBCAT Engines (See Description for Fitment Information)E-4552
99% match

K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter:Compatible with Select 1999-2013 JOHN DEERE/HITACHI/KUBOTA/BOBCAT Engines (See Description for Fitment Information)E-4552

K&N

£74.77 28 Feb 2026
K&N Universal Air Filter - Carbon Fiber Top and Base: High Performance, Premium, Washable, Replacement Engine Filter: Filter Height: 5.75 In, Flange Length: 1 In, Shape: Oval Straight, RP-5105
99% match

K&N Universal Air Filter - Carbon Fiber Top and Base: High Performance, Premium, Washable, Replacement Engine Filter: Filter Height: 5.75 In, Flange Length: 1 In, Shape: Oval Straight, RP-5105

K&N

£181.68 13 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2016-2018 GEELY (Bo Yue), 33-3103
99% match

K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: 2016-2018 GEELY (Bo Yue), 33-3103

K&N

£73.76 12 Jan 2026
K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3 In, Filter Height: 5 In, Flange Length: 1 75 In, Shape: Round Tapered, RU-5176
99% match

K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Filter: Flange Diameter: 3 In, Filter Height: 5 In, Flange Length: 1 75 In, Shape: Round Tapered, RU-5176

K&N

£88.90 01 Apr 2026
K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Engine Filter: Flange Diameter: 2.4375 In, Filter Height: 5 In, Flange Length: 0.625 In, Shape: Round, RU-0810
99% match

K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Engine Filter: Flange Diameter: 2.4375 In, Filter Height: 5 In, Flange Length: 0.625 In, Shape: Round, RU-0810

K&N

£56.29 21 Feb 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3380
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3380

K&N

£71.15 11 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3402
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3402

K&N

£57.48 11 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with Industrial Round Air Filter, E-4961
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Compatible with Industrial Round Air Filter, E-4961

K&N

£54.20 12 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3650
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3650

K&N

£74.91 12 Jan 2026
K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 3.5 In, Filter Height: 8.5 In, Flange Length: 0.625 In, Shape: Round, RU-1785
98% match

K&N Universal Clamp-On Air Filter: High Performance, Premium, Washable, Replacement Engine Filter: Flange Diameter: 3.5 In, Filter Height: 8.5 In, Flange Length: 0.625 In, Shape: Round, RU-1785

K&N

£86.23 11 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3340
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3340

K&N

£42.61 11 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3743
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3743

K&N

£90.27 12 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3344
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3344

K&N

£71.15 21 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-9156
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-9156

K&N

£62.74 25 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3321
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3321

K&N

£45.88 11 Jan 2026
K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3211
98% match

K&N Engine Air Filter: High Performance, Premium, Washable, Industrial Replacement Filter, Heavy Duty: E-3211

K&N

£41.04 20 Apr 2026