What is Cold Weather Option on F350?

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What is Cold Weather Option on F350?

Post  Doug Rahn on March 16th 2015, 7:52 am

I went to Autozone to get a new serpentine belt for my F350 and was asked if mine had the cold weather option and I had no idea Shocked  what he was talking about and he didn't know either. The belt with the option is 121.65" long and without is 122.91". Anybody have something on this?

Forgot to add, but mine does have the block heater. I don't see how that would affect belt length.
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Re: What is Cold Weather Option on F350?

Post  dfree383 on March 16th 2015, 8:29 am

Never heard if a different belt.

The cold weather pack was usually just a block heater.
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Re: What is Cold Weather Option on F350?

Post  Doug Rahn on March 16th 2015, 8:37 am

I guess my only option is to go ahead and take the belt off and measure it. Mad
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Re: What is Cold Weather Option on F350?

Post  the Coug on March 16th 2015, 9:02 am

maybe he ment a heater? LOL some of those kids they hire for those positions are brain dead...
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Re: What is Cold Weather Option on F350?

Post  dfree383 on March 16th 2015, 9:07 am

Maybe try another auto parts store?
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Re: What is Cold Weather Option on F350?

Post  Doug Rahn on March 16th 2015, 9:22 am

I looked it up myself, O'Reilly, Advance, and Autozone and all show the same thing.

Three options.
Dual Alternators-137.32"
With Cold Weather Option-121.65"
Without Cold Weather Option-122.91"
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Re: What is Cold Weather Option on F350?

Post  cool40 on March 16th 2015, 9:24 am

Something about 2 alternators? Suspect
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Re: What is Cold Weather Option on F350?

Post  Doug Rahn on March 16th 2015, 9:28 am

cool40 wrote:Something about 2 alternators? Suspect

Ambulance Package.
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Re: What is Cold Weather Option on F350?

Post  dfree383 on March 16th 2015, 9:30 am

Might be a different ratio on one of the pulleys?
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Re: What is Cold Weather Option on F350?

Post  the Coug on March 16th 2015, 9:41 am

I have always wanted the top water hose for the duel alts so if you ever break a belt you won't have to drain the coolant...
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Re: What is Cold Weather Option on F350?

Post  Doug Rahn on March 16th 2015, 9:46 am

dfree383 wrote:Might be a different ratio on one of the pulleys?

I was thinking the same thing and it appears that an OEM is available with different size alternator pulleys. Weren't some Powerstroke's available with an air intake heater, heated seats, etc.?
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Re: What is Cold Weather Option on F350?

Post  rmcomprandy on March 16th 2015, 1:13 pm

The "cold weather option" used to be getting an adjustable heat arrangement for the rear seat but, i have no clue as to why that would affect the fan belt length.

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Re: What is Cold Weather Option on F350?

Post  maverick on March 16th 2015, 1:25 pm

Can't be a different water pump pulley. The cold weather deal gets the shorter belt which means the water pump would be driven faster with a smaller pulley...seems backward for cold weather to me. My F450 had the factory block heater and nobody mentioned the cold weather deal when I bought a belt.

We do have a rather famous (or infamous) Ford dealer and a Ford diesel tech on this forum. Maybe one of them will fill us in. Suspect
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Re: What is Cold Weather Option on F350?

Post  cool40 on March 16th 2015, 1:32 pm

maverick wrote:Can't be a different water pump pulley.  The cold weather deal gets the shorter belt which means the water pump would be driven faster with a smaller pulley...seems backward for cold weather to me.  My F450 had the factory block heater and nobody mentioned the cold weather deal when I bought a belt.

We do have a rather famous (or infamous) Ford dealer and a Ford diesel tech on this forum.  Maybe one of them will fill us in. Suspect
that famous ford dealer studies gas burners not smokers Razz and if I'm thinking of the same wrench turner you are.......well he mostly scratches headlights. Razz
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Re: What is Cold Weather Option on F350?

Post  Lem Evans on March 16th 2015, 1:41 pm

Doug Rahn wrote:I looked it up myself, O'Reilly, Advance, and Autozone and all show the same thing.

Three options.
Dual Alternators-137.32"
With Cold Weather Option-121.65"
Without Cold Weather Option-122.91"

Send me the ser. # of the truck.

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Re: What is Cold Weather Option on F350?

Post  maverick on March 16th 2015, 2:10 pm

Doug Rahn wrote:
dfree383 wrote:Might be a different ratio on one of the pulleys?

I was thinking the same thing and it appears that an OEM is available with different size alternator pulleys. Weren't some Powerstroke's available with an air intake heater, heated seats, etc.?

That's it, I bet....A smaller alternator pulley would spin the alternator faster, especially helpful with extended warmups and idling in cold weather...extra electrical loads, etc.. That would take a shorter belt, yes?
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Re: What is Cold Weather Option on F350?

Post  richter69 on March 16th 2015, 6:59 pm

ask adam hes bona-fide
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Re: What is Cold Weather Option on F350?

Post  83-88T-Bird Guy on March 17th 2015, 7:33 am

maverick wrote:
Doug Rahn wrote:
dfree383 wrote:Might be a different ratio on one of the pulleys?

I was thinking the same thing and it appears that an OEM is available with different size alternator pulleys. Weren't some Powerstroke's available with an air intake heater, heated seats, etc.?

That's it, I bet....A smaller alternator pulley would spin the alternator faster, especially helpful with extended warmups and idling in cold weather...extra electrical loads, etc..  That would take a shorter belt, yes?

^^ That would be my guess. Speed up the alt. at low speed.
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