Engine/Transmission (1994 - 1998) Need new radiator coolan fan blade - where can I get one?

[Dan_69GTX]

Greetings,

I noticed a crack on one of my fan blades so I need to get a new blade assembly. From what I can tell the part numbers for this would be 52004927 which superseded to 52028653 and both are not available. I would really prefer to NOT get a used one since it is already fatigued.

I looked and see that the 2000-2002 use a different blade - 52028893AA which is not available but some show to still have stock. Is it possible to use this blade on my truck? Does anyone know the diameter of this blade? I looked and see the specs for the fan CLUTCH is similar but not exactly the same for the 90-99 as the 2000-2002. The water pump is the same so the mount for the fan clutch is the same. I might be able to use a newer fan blade with the newer fan clutch.

What have you done to replace a broken fan blade? I also prefer to not go the electric route as the exclusive cooling fan.

Thanks!
Dan

 

[mwilson]

Dan,

I did not solve this when it came up before. What I am going to try when I get time is to remove my fan blade on the '97 and get it on the bench so that I can measure bolt circle, pilot hole diameter, pitch, direction and overall diameter. Then try to match it up with an existing Horton fan blade offering. I will also call Horton engineering once I pick a blade to make sure that it will not exceed the capabilities of the fan clutch itself.

If someone has a blade that is already off and could get these dimensions it would speed up the process.

As far as the 00-02 fan blade and clutch that's an interesting idea BUT the water pump being the same doesn't count for much. It is the fan drive pulley that makes the difference if there is any. If the fan CLUTCH part number is constant from '94-'02 then it's probably ok. If it changes along with the part number for the fan blade then we need to figure out what was engineered differently. I have never owned an '00-'02 truck so am in the dark without a VIN for reference.

Mike.

 

[Dan_69GTX]

Ohh - good point about the water pump. I just did a water pump on a 5.9 GAS and didn't think about the diesel not using the water pump for a drive of the fan clutch. I'll look into that and thanks for catching my mistake.

 

[mwilson]

If someone could provide a VIN for an '00-'02 truck I could pick away at it. I have the '97 VIN to work with already.

 

[Cummins12V98]

mwilson

I hope you have success. I recently replaced my fan clutch and the blade had a few cracks so I welded them. so far fine. Would like a new fan!

 

[Dan_69GTX]

Here is what I know from my research last night on fan CLUTCHes. The CarQuest/Autozone part numbers are: 1996 - 215035, 2000 - 216016. Advertised specs are identical but for the following: overall height 3.27 vs 3.72, Fan mount height 1.25 vs 1.21. Visually they are different in that the 2000 unit has a higher (from the main body) fan mounting flange than the 1996 unit - which would account for the overall unit being higher.

I'll keep this updated as I find out more info.

As far as a VIN: Here is one for a 2001 Dodge 2500 diesel, reg cab long bed 4x4 - don't remember if it was auto or manual - I think it was manual.
3B7KF26601M248620

 

[mwilson]

OK, will play around with that VIN tonight.

 

[mwilson]

I know that the motor and radiator are a constant as far as location through the entire 2nd Gen run SO I wonder if they put more pitch on the fan blade in 2000 and as a result had to place the center of the fan farther away from the block to accommodate the change. Increased cooling capacity maybe? So maybe, and this only a sitting around drinking beer maybe, an upgrade to an '00-'02 fan clutch and fan blade might give good results IF nothing else is different?

 

[GAmes]

This thread has sparked my curiosity. Where are the cracks being found? Are they emanating from the rivets? Any pictures?

 

[Dan_69GTX]

Games - no pics right now. The crack is forming from the trailing edge of the blade. The crack is just over 1/2 the width of the blade. It is about 1" away from the last rivet. Glad it didn't let go last week, we just got back from camping at the beach about 440 miles from home.

 

[GAmes]

Thanks Dan. My fan clutch has been fully engaged a lot lately, so I was concerned. Now, I'm wondering why a low mileage fan fails when one with over 1.1 million is intact.

 

[Dan_69GTX]

Because I am lucky!! I had the fan fail on my GTX a few years ago and it took out almost the entire inner row of the radiator. Sigh. Maybe my truck is getting back at me since I only drove it 5 thousand miles last year.

 

[Dan_69GTX]

OK, more strike outs. Both numbers for the OEM fan are NS1 (we already knew that) and are not available in from any dealer according to my dealer's parts locator. The 00-02 fan blade is also NS1 - expected from some of the web searches the other day. It also is not in any dealer's inventory. So even if I could find one I'm not going to chase that since it isn't worth the effort to replace more than needed for something I can't repeat in the future.

Now onto more hunting....

 

[Dan_69GTX]

Here is what I found and what I am going to do....for now.

Looked for an aftermarket fan.
- Called Horton - nope.
- Called ACS (American Cooling Systems) - nope.
- Checked Dorman - nope.

Found that 2 of the folks stated they have received a lot of calls about this application in the last 2 months. I explained why. Found an old e-bay auction that was for a 20" fan. Found a guy in AZ that might have some fans. He doesn't but he is the one who supplies the fans to somebody in Wyoming - I'm guessing the guy who had the e-bay listing. BUT they are out of fans and not sure when they will get some in. When they DO have them they sell for around $200. He said the guy in Wyoming sells them for $250 or more.
http://www.ebay.com/itm/94-95-96-97...D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

Found the largest aftermarket fan that will fit on an existing fan clutch - it is 20" and 6 blades. Can get it from Summit for around $54 with shipping.
http://derale.com/products/belt-dri...andard-rotation-fan-clutch-fan-black-1-detail

Found factory used ones on E-Greed (E-bay) for $350-$500.

I figure that fairly soon the aftermarket is going to get into the act and provide a fan since Ma MOPAR will not. So for now I ordered the one from Summit and will let you know how well it works. If I'm happy with it and it fits - great, I'll keep it until the aftermarket steps up to the plate. If not, back to searching. I'll be towing in a few weeks so I can see how well it does. But I will not be as heavy as sometimes.

I did find a used fan blade from a neighbor that I can borrow for now if this doesn't fit or work - as long as the used one isn't broken too.

 

[mwilson]

Horton offered nothing??? What are the pilot hole and bolt circle dimensions?? Good research BTW!!!

http://catalog.hortonww.com/catalog/fan_blade.asp?component_id=-5&dim_id=15~22.9&units=english

 

[Dan_69GTX]

Thanks for the compliment.

I didn't find anything on their site. The Horten "engineer" said they don't have a fan that is a direct replacement.

Not sure of the pilot hole - didn't measure that. From my research it should be 2.62" The bolt holes are for a 5/16" bolt and the bolt circle is 3.25". I don't know what pitch the OEM blades are. From research it should move 5400CFM - but not sure at what rotational speed.

I did find an aftermarket electric fan setup - expensive and states not for over 18,000GVW.
https://www.flex-a-lite.com/catalog...ual-electric-fans-for-94-02-dodge-ram-diesel/

 

[GAmes]

Based on what you have found so far I think I would enlist the help of a good welder.

 

[Dan_69GTX]

I thought about welding it but there are several reasons I didn't. If you know how to overcome them please let me know since welding it would be the cheapest and simplest.

- How to balance the blade assembly after it is repaired.
- How to re-temper the area around weld to be what it should be and not crack or bend later.

Also if one blade is cracking I'm uncomfortable with trusting the others to not crack too.

I've made parts and tempered them to an estimate of what they should be. But those parts had a low risk of failure and the risk of damage should the part fail was low. The stakes for a fan are high for me when I am towing.

I'm NOT a professional welder but have made lots of repairs and have built things using sheet metal on up. Please don't read this as "I'm taking offense at your post" cause I am NOT. You have contributed a GREAT amount to this site and I am grateful for that. Your idea is good!

Dan

 

[GAmes]

My welding skills are amateur at best, but there are welders who know how to do all those things. Personally, I think you ended up with a bad fan blade, not a bad fan, so I wouldn't assume that the others are prone to crack. In that vein, maybe a new blade from another damaged fan? On the other hand, I am awaiting the results of the Summit fan.

 

[Dan_69GTX]

The Summit fan should be here by Friday. I'll update when I first get it and after a bit of driving.