Radiator confusion

[top banana 1966]

Im wondering whats the basic difference in an rt and srt raditor.if its a bigger radiator .is upgrading it a big deal?

[bipto]

Search is your friend...

[Daniel454]

4 different radiators exist...

Base
Towing Package
SRT
and Max Duty (overseas export)

As you go up that list each get deeper... Upgrading up to the SRT model is fairly simple, just need the hoses to go with them. The Max Duty one has special connectors that have to be made, they are not available in a way that will work.

[top banana 1966]

ive searched but so much comes up im more confused then before.i know that the r/t have 1 type radiator and the srt's have which ? is it a straight swap or is there more to it ?

[top banana 1966]

this is what comes up on parts seachs.



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Mechanical Catalog Cooling system , Radiator

2006 Dodge Charger

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Keyword or Part Number


Description Year MSRP Price Core Price Your Price
Radiator, charger, magnum, 300, standard and heavy duty 05-07 $321.00 $253.44


Radiator, charger, magnum, 300, severe duty 05-07 $357.00 $282.48


Radiator, charger, magnum, 300, severe duty ii 05-07 $472.00 $372.24


Radiator, charger, magnum, 300, maximum duty 06-07 $478.00 $377.52





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[Daniel454]

When he said search, he meant search HERE on LX Forums...

Parts numbers:

5137 691AA Std
5137 692AA Severe
5170 742AA Severe Duty II
5175 367AA MAX Duty

Threads about them:

And you thought you knew about LX radiators...

Radiators revisited

[top banana 1966]

oh sorry .i misunderstood.

[top banana 1966]

so has anyone determined the difference in the cooling capacities between the 2 radiators the severe duty and severe duty ii ?

[Hal'sMag]

Matt and i did the Max duty, which have totally different fittings and hoses, but mount right up in the same spot. they move the front condenser and trans. coolers forward about 1".

R/T hoses would not fit, but we both added the Police oil cooler at that time. I ended up using a Cool flex custom hose for the bottom to the Police oil cooler fitting, and a cut down Chevy hose on the top.

Not having a SRT (severe duty II)to compare to, I can't say if the hose diameter is the same as the R/T, but the core will be over twice as thick.

If anyone has a SRT radiator out of the car, and can take some inlet / outlet measurements, I can take them from my stock R/T system I removed and compare.

PM me.

[top banana 1966]

it would be nice to be able to see what the difference is in the the core thickness.

[2005rtmag]

I called a dealer parts counter today and he confirmed using my vin# that my RT does indeed have the 5137 691AA standard radiator. He said he could only find listed one more and that must be the SRT radiator, part # 5137 692AA. I gave him the severe duty II part number 5170 742AA and he was able to find it, but said he had no info on what it came in. He had no info on the Max Duty radiator even after I gave him the part #.

I'm considering pulling my 3,000 lb. boat from NC to Fl, a distance of 590 miles and I am a little worried about overheating. Maybe, I should buy the 5137 692AA Severe cooling radiator and install it first.

[Cam]

it would be nice to be able to see what the difference is in the the core thickness.

The core difference is 1". The stock RT rad is 7/8" thick and the SRT is 1-7/8". The SRT unit bolts right in no problem, with no other changes, I've done it.

[Daniel454]

I called a dealer parts counter today and he confirmed using my vin# that my RT does indeed have the 5137 691AA standard radiator. He said he could only find listed one more and that must be the SRT radiator, part # 5137 692AA. I gave him the severe duty II part number 5170 742AA and he was able to find it, but said he had no info on what it came in. He had no info on the Max Duty radiator even after I gave him the part #.

I'm considering pulling my 3,000 lb. boat from NC to Fl, a distance of 590 miles and I am a little worried about overheating. Maybe, I should buy the 5137 692AA Severe cooling radiator and install it first.

Mopar Super Center, or the Mopar Store can get you any of the 4.

FYI, The Severe Duty I radiator was from the Police model or those that had the towing package.... SO it would be sufficent for towing but I would check prices on them, if you are spending the money, i would suggest going with the SRT radiator (Severe Duty II)...

[top banana 1966]

cool thansk i have the rad coming in from clevland pick a part.ill have it installed by the week end.

[Pale Rider]

For those that upgraded to the SRT Radiator, you used SRT upper and lower hose, correct?

Reason I'm confused is this...


Upper hose, charger, magnum, 300, 5.7l, w/o engine oil cooler 06-07 $19.80 $12.87

Upper hose, charger, magnum, 300, 5.7l, w/engine oil cooler 06-07 $30.85 $20.05

Upper hose, charger, magnum, 300, 6.1l 05-08 $31.85 $20.70


Since the 6.1 listing does NOT mention an oil cooler, (because it WILL have one? Not an option?) I'm just wanting to know if there is an issue with the hoses.