SL55/63/65/R230 AMG: K&N Filter part number question

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Jul 10, 2009 | 11:15 AM

FLSL55

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Joined: Nov 2001

Posts: 801

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From: South Florida

SL65

K&N Filter part number question

I found two part numbers for our cars online. 33-2859 and 33-2181.

They both have different dimensions. I think 33-2859 is discontinued but places like Amazon still show them in stock.

What part number is the best "fit" for our cars?

I found a place online that sells the 33-2181 for $29.99 with free shipping and a $5 processing fee. I misplaced the bookmark. They never responded back to my email. I am hesitant doing business with a company with bad customer service.

Jul 28, 2009 | 12:46 PM

FLSL55

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Joined: Nov 2001

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From: South Florida

SL65

What K&N part number do you have in your SL55?

Jul 28, 2009 | 03:07 PM

sjcsl55

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Joined: Jun 2009

Posts: 169

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From: San Jose, CA

04 SL55 AMG

I have the 33-2181... appear to fit perfectly. Bought mine via amazon.com, no tax free shipping..

Jul 28, 2009 | 04:04 PM

LOVEMYBS

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Joined: Oct 2007

Posts: 917

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From: Manassas, VA

10 Cayenne GTS, 07 Porsche 911 Turbo

Quote:

Originally Posted by FLSL55

Go to the K&N website. Follow the prompts for your car and it will tell you what filter to use. I believe the 2181 was replaced by the 2859 or vice versa; I can't remember. In any event they are the same filter with the same dimensions. K&N made the change for inventory control purposes. I went through this exercise several months ago and purchased whatever they recommended. So far no problems.