Difference between OBS and Super Duty fuel filters?

Justin@DP-Tuner · Nov 17, 2011

Anybody know the difference? They are one part number different. Wix pn 33817 for the OBS, and Wix pn 33818 for the Super Duty. I am at work looking at these things and I see no difference at all. The reason I ask is because the OBS one is $18 and the Super Duty one is $29. I'll post a pic in a minute.

Justin@DP-Tuner · Nov 17, 2011

Justin@DP-Tuner · Nov 17, 2011

OBS is on the left. Super Duty is on the right.

BigAlsPSD · Nov 17, 2011

Interesting, I do not know but would like to find out if there is a difference.

Justin@DP-Tuner · Nov 17, 2011

I bought an OBS one. I will try it out today and post my results on this thread

SDS97_7.3 · Nov 17, 2011

Ive used the superduty on on my OBS as I needed to change it and my dad had a few extras.

purpleheart350 · Nov 17, 2011

JBone said:
OBS is on the left. Super Duty is on the right.

Are you sure it isnt the other way around SD on left and OBS on right? If you look real close you can see that I am blowing smoke up your a** just to get a laugh.. I would like to know how it works out for you as well

Justin@DP-Tuner · Nov 17, 2011

I mean everything is exact. The o-rings, the water separator, the filter, the cap... Everything.

If in fact they are the same, someone in the manufacturing department got smart and decided to up the price on the Super Duty one even though it is the same. Good marketing strategy I guess?

Either way, if this works it will save all Super Duty guys a few bucks.

94.5 Stroker · Nov 17, 2011

Pepboys only has one part number

Justin@DP-Tuner · Nov 17, 2011

94.5 Stroker said:
Pepboys only has one part number

What is that part number?

SDS97_7.3 · Nov 17, 2011

Same with my local parts store. Its a Wix filter, Ill see if I still have the box. Oh and they are the same price for both here.

Justin@DP-Tuner · Nov 17, 2011

Well look up Wix 33817, and Wix 33818.

Two different part numbers with two different prices.

Yet, as far as I can see, the same part...

SDS97_7.3 · Nov 17, 2011

Both my boxes are 33818, one ordered for a SD the other for an OBS, both the same price

Justin@DP-Tuner · Nov 17, 2011

SDS97_7.3 said:
Both my boxes are 33818, one ordered for a SD the other for an OBS, both the same price

Next time ask for a 33817. It was only $18.99 and with my discount it was only about $16.

SDS97_7.3 · Nov 17, 2011

JBone said:
Next time ask for a 33817. It was only $18.99 and with my discount it was only about $16.

They cost me $35, Ill have to check next time.

94.5 Stroker · Nov 17, 2011

Purolator F55055

94.5 Stroker · Nov 17, 2011

Purolator F55055

Justin@DP-Tuner · Nov 17, 2011

Well the filter is in and fit perfectly. I am glad I was able to save a few bucks

So for future reference... When buying a 7.3 fuel filter, just go with the one listed for the OBS. Much cheaper lol

ClatterinDiesel · Dec 3, 2011

I want to say one of them is taller than the other. Maybe not that particular brand u have photographed. But I seem to remember trying to use one for the other and it not working. Or....maybe one of the fuel bows was not as deep as the other. Something like that u couldn't see with the naked eye.