SN95 Smog Pump delete pulley

RaggedGT · Mar 13, 2019

Are all smog pump delete pulleys for 5.0’s the same?
I have seen them listed under ‘79-93’ and ‘94-95’ - though they do look a little different,the dimensions seem the same..
Now that I asked that,ima ask this- who’s got one laying around that they would sell on the cheap? If one of you guys has one-send me a PM.

Mustang5L5 · Mar 13, 2019

On the fox, you can short belt it and reroute around. Not sure if you can do the same with the sn95

I never liked the idea of a delete pulley. You are taking a part off that passes Fords longevity and durability tests and replace it with an aftermarket part made by the lowest bidder with no warranty against leaving you stranded if the bearing/pulley/shaft fails

RaggedGT · Mar 13, 2019

Mustang5L5 said:
On the fox, you can short belt it and reroute around. Not sure if you can do the same with the sn95

I never liked the idea of a delete pulley. You are taking a part off that passes Fords longevity and durability tests and replace it with an aftermarket part made by the lowest bidder with no warranty against leaving you stranded if the bearing/pulley/shaft fails

I totally can short belt it.
I hear ya,and it’s a valid point. But- I also like the idea of if I break a belt,I can just ask for a stock replacement from the teenager at the parts counter lol

Mustang5L5 · Mar 13, 2019

That is a very good point as well

FastDriver · Mar 14, 2019

No freewheeling pulley is ever going on my car. What's the point? It would just be in the way. I don't even like the tensioner, lol. As far as the stock belt... I mean, once you know your size, you know it. Even if you don't, it just takes a few minutes to fit belts until you figure it out. It's not as if they don't stock the right size at the parts store.

RaggedGT · Mar 14, 2019

I want a shiny pulley
lol .
Honestly-I get it,they are basically useless and just clutter up the bay,but I am still holding onto the idea that asking for a belt to a 94 Mustang is gonna be easier then asking for a 56.5 inch belt or trying to convince Justin beiber at the local az to let me take an arm load of new belts into the parking lot

kendawg73 · Mar 14, 2019

RaggedGT said:
I totally can short belt it.
I hear ya,and it’s a valid point. But- I also like the idea of if I break a belt,I can just ask for a stock replacement from the teenager at the parts counter lol

yes, but once you know the belt size you need... then that's all you need to get a replacement.... just keep that part number on hand and give that to the idiot to punch in... plus there cheap enough, buy 2 and then you will have a spare on hand.

2000xp8 · Mar 14, 2019

If you run a delete pulley, it's not if it's going to fail, it's when. Literally all you are doing is adding a failure point.
A properly aligned serpentine belt breaking almost unheard of too. Give it a look each time you check your oil, if it's not starting to fray, it's not going to break.
If you were being serious about the "shiny" comment, pretty much no delete pulley looks as if it belongs there, so shiny or not, it will likely appear to look wrong.
If you are genuinely worried, do as ken said, once it's settled, buy two belts or just store the length on you phone.

Mustang5L5 · Mar 14, 2019

I just keep the sleeve from the old belt in my trunk under the carpet.

RaggedGT · Mar 14, 2019

FWIW-the shiny pulley comment was intended for humor.
I’m gathering from the collective-that none of you are fans of delete pulleys .
I’ll weigh my options a little better.

kendawg73 · Mar 14, 2019

RaggedGT said:
FWIW-the shiny pulley comment was intended for humor.
I’m gathering from the collective-that none of you are fans of delete pulleys .
I’ll weigh my options a little better.

think of it this way, your worried about having trouble getting a new belt... what happens if that delete pulley takes a ... (bearing seizes ect)... your not getting a new one of those at Autozone or advance auto.... you will be waiting a week at least after you order another one on-line....

I'm doing the short belt on mine.. bought the belt few years ago and is sitting in my parts cache waiting to go on when I hang the accessories back on...

And like Mustang5l5 just keep the belt sleeve... or do what I do... since it's 2019, take a picture with your phone... I keep a lot of stuff like that, oil filter #'s ect... so when I'm in the store and need a new filter or something for one of the cars... and I can't remember because I have CRSS (can't remember syndrome), I pull out my phone and go through my pics until I find it....

Wayne Waldrep · Mar 14, 2019

How about a completely different thought. Before I do I'll just say I'm not a delete pulley person either but rather a reroute person. BUT....the actual delete pulley is not going to fail and more than likely, not the bracket it's bolted to. So if the bearings are supposedly that bad, pull them out and measure them with some calipers. Go to Fastenal and buy the high-quality bearings that they have. They have thousands of them. Press them in. It's not that hard. But that is an awful lot of work to make a belt longer when a short one will work. Like was said above, I also keep the sleeve so I can make it easy on the brilliant person at the counter. Hold up the sleeve and point....lol.

General karthief · Mar 14, 2019

I run a delete pulley on mine, it's plastic and I worry about it coming apart all the time but been there like 45k miles and I have the dump truck if something goes wrong locally.
Ok, so I really don't worry about it, but I do check it when I raise the hood, come to think of it I don't raise the hood very often.
I've replaced the pulley bearings on all idler and adjuster pulleys on the 7.3 in the dump truck, easy and cheap. I even have extras,

FastDriver · Mar 14, 2019

Dude, don't listen to any of us. This ain't that big a deal. It's not my style, or anyone but yours really, haha, but just get what you want...

Wayne Waldrep · Mar 14, 2019

FastDriver said:
Dude, don't listen to any of us. This ain't that big a deal. It's not my style, or anyone but yours really, haha, but just get what you want...

Best advice yet!!!

Boostedpimp · Mar 14, 2019

I'm also an advocate against delete pullies for all the reason mentioned above. Just figure out your size with a string and now you know your size. I've never had a problem finding a short belt at the chain stores or ordering one online from them and picking up next day.

KZGUNS · Mar 14, 2019

I just bought 3 belts the size i thought and returned the ones that didn't work. it was tight getting it on but the one that went on easy was only leaving about 3/8" i under the tensioner and the passing belt. ended up using K060711 which is 71 - 5/8"

from6to8 · Feb 3, 2026

KZGUNS said:
I just bought 3 belts the size i thought and returned the ones that didn't work. it was tight getting it on but the one that went on easy was only leaving about 3/8" i under the tensioner and the passing belt. ended up using K060711 which is 71 - 5/8"

you still around? The one that went on tight how tight was it to get on? Just installed a vortech v3 and running AC but no smog. A gates 85 7/8 will almost get on but need another between 1/8" to 1/4" to get on. An 86 inch duralast went right on without using the tensioner so i know that's not enough tension especially since the belt will stretch.

Now I did have the long bolt in the Alt but not the L bracket fastened yet. Maybe if I loosen the long bolt and put the L bracket on that'll allow me to slip the belt on the alt and get the 85 7/8th on, or maybe putting on the L will move the alt to the fender enough to put more tension on the 86" long belt. I don't want the 85 7/8 to have too much tension though so will just have to try and see.

How are you running a 71 inch with a smog delete only and even if you have the AC delete it would see that's too short. Before the SC install I ran around an 88 belt with smog removed.

@Noobz347 @AeroCoupe what are your thoughts?

RaggedGT · Feb 3, 2026

Fwiw -this was the belt I ended up using after weighing my options from everybody in my thread-

I gots no supercharger though :-(

from6to8 · Feb 3, 2026

RaggedGT said:
Fwiw -this was the belt I ended up using after weighing my options from everybody in my thread-

I gots no supercharger though :-(

The size that I thought I pretty much needed was in '86 I believe I had it narrowed down last night as an 86 was what I need. So I looked at some last night and I was going to get a good year but what really happened was so I had the alternator locked down with the long bolt but I did not put the bracket the state I did not have that bolted up yet. So that threw me off anyway so today I was like I need to go ahead and put that on and actually I needed to loosen the long bolt to fasten the bracket to the other spot on the alternator.

Once I did that it moved the alternator pulley to the right some and so therefore now the 86 that was going right on without having to tension it is now too short so an 86 and 3/8 almost wants to go on and an 86 and 5/8 goes right on so I need an 86.5.

SN95 Smog Pump delete pulley

RaggedGT

Been here over a DECADE and still no CT

Mustang5L5

That is…until I whipped out my Bissell

RaggedGT

Been here over a DECADE and still no CT

Mustang5L5

That is…until I whipped out my Bissell

FastDriver

I was uncomfortably high & wearing a helmet

RaggedGT

Been here over a DECADE and still no CT

kendawg73

Well-Known Member

2000xp8

Mustang5L5

That is…until I whipped out my Bissell

RaggedGT

Been here over a DECADE and still no CT

kendawg73

Well-Known Member

Wayne Waldrep

Before I post a pic, do you have one of yours?

General karthief

wonder how much it would cost to ship you a pair

FastDriver

I was uncomfortably high & wearing a helmet

Wayne Waldrep

Before I post a pic, do you have one of yours?

Boostedpimp

KZGUNS

I can swing up to 11”

from6to8

There's suction so I used that end O_O

RaggedGT

Been here over a DECADE and still no CT

from6to8

There's suction so I used that end O_O

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SN95 Smog Pump delete pulley

Been here over a DECADE and still no CT

That is…until I whipped out my Bissell

Been here over a DECADE and still no CT

That is…until I whipped out my Bissell

I was uncomfortably high & wearing a helmet

Been here over a DECADE and still no CT

Well-Known Member

That is…until I whipped out my Bissell

Been here over a DECADE and still no CT

Well-Known Member

Before I post a pic, do you have one of yours?

wonder how much it would cost to ship you a pair

I was uncomfortably high & wearing a helmet

Before I post a pic, do you have one of yours?

I can swing up to 11”

There's suction so I used that end O_O

Been here over a DECADE and still no CT

There's suction so I used that end O_O

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