[all_bran]

My wife is in love with the Aspen, which means we're getting an Aspen, but I can't find a site that gives me accurate specs!! It was made from 2007-2009 model years. What engines were available for each model year and what were their performance specs??

There appears to be a 4.7L and a 5.7L available for each year, but the HP numbers I'm finding on various websites are conflicting. I'm mainly looking at getting the Hemi, but I wanted to get one with MDS (that works on the highway above 70mph.) I thought I read the 376HP Hemi was introduced in the 2009 model year, but I can't say that with any confidence??

Any help finding the real answers would be much appreciated. Thanks!

 

[loudrango]

If you go to cars.com, they have a rundown of options by model year.

 

[all_bran]

I already checked them out and they appear to have a lot of discrepancies with other websites so I was wondering if someone could straighten everything out for me. They list the 5.7L Hemi for 2007-2009, but I read somewhere the 2009 Hemi got VVT, they upped the HP from 335 to 376 or so, and it gets better highway MPG, but I can't seem to find any confident proof of this anywhere??

 

[Don Fox]

I believe when the Hemi got VVT it went up to around 360 HP from the original 335 and then 345. I also believe the "hybrid" package bumped the HP up a bit more, but that was a short lived beast for 2009 only. The 4.7 was upgraded to 303 HP in mid 07 as we saw the new ones being installed when the DOC members toured the Newark plant in October of 2007.

Hard to believe it'll be 5 years ago on the 17th. It was a great trip and a fun tour due to meeting so many DOC members!

Don

 

[all_bran]

So if I'm looking for a used Aspen with either the 303 HP 4.7L or the 365 HP Hemi, what model years should I look for for each one?

 

[FSTDANGO3]

You're really going to want a late 08 to 09 Hemi Aspen.
The 4.7 will just be OK in a full-sized Aspen, but won't yield any better gas mileage.
Good luck finding a nice used one, most owners are very pleased with them and wanna hold on to them.
Steve
DOC Pres

 

[IndyDurango]

+1 on the 2009 Hemi Aspen.

As for technical specs, etc? 99% identical to the 2009 Durango Hemi so anything you find here or elsewhere will apply.

IndyDurango

 

[all_bran]

So, if I'm understanding what you're saying, I shouldn't notice any significant mileage difference between the 4.7L on a 2008-2009 Aspen vs the 5.7L on a 2009 Aspen? Just a 70 HP difference in power? My wife mainly does stop & go city driving to the grocery store (so MDS would be useless), but we'd be using it on long trips too. So there'll be a good bit of short 1-2 mile trips on it as well as a good amount of steady highway driving. Does MDS help that much compared to just going with a 4.7L?

The power isn't important at all, I'm mainly concerned about mileage as well as durability between the two engines.

Thanks!

 

[FSTDANGO3]

Get the Hemi!

 

[all_bran]

Yeah, but what if I can't find a 2009 with a 376 HP Hemi (they seem to be like the proverbial needle in a haystack!) If the 4.7L delivers the same mileage and is equally reliable, then I'd go with the 4.7 and have 2008 and 2009 to choose from. Remember, it's for my wife and she really doesn't care about going fast in with our babies inside, so I'm wondering if it's even worth looking for an 09 5.7L Hemi needle in a haystack as it relates to MPG and reliability? Can someone tell me what the MPG difference is between the 08 4.7, 09 4.7, and 09 5.7 models? Would looking for the 376 HP Hemi just be splitting hairs when I could settle for the 303 HP 4.7?

 

[Old_School]

It really depends on what you plan to do with it. You say it'll be your wife's, but do you plan for it to just be her grocery getter or would you also use it for weekend getaways where you could be towing a boat or a trailer??

If you plan to tow with it, I'd go with the 5.7 just for the extra power. If not, then the 4.7 will save ya a little fuel and would fit the bill for her needs.

 

[Don Fox]

All other things being equal, I also vote for the Hemi as having the extra power won't cause any issues. But, if you needed to add it someday, it'd costs a bundle. Remember, the upgraded 4.7 engine was pretty new at that point while the Hemi had been around since 2004. With the Durango's 5000+ lbs to move, mpg difference will be minimal and the pricing should be similar Hemi or not.

At the end of the day, either engine should do a fine job for you so look for the best deal you can get in the color you want and go for it. From some quick research, it appears that both the 303 HP 4.7 engine and the older 235 HP 4.7 used the same VIN designation of N in the 8th digit so you'll want to make sure any 4.7 you look at is the "upgraded" double plug version like the Hemi. There was also a "Flex Fuel" 235 HP 4.7 version indicated by a P in the VIN. The early Hemi's were indicated by a D while the later ones used a 2 and then a T for 2009.

Hope this helps.

Don

 

[IndyDurango]

So, if I'm understanding what you're saying, I shouldn't notice any significant?

No :!:

What we're saying is get the Hemi? 5 times now! :cheesy:

The Aspen is too large to be a comfortable daily driver with the 4.7 pulling it around. And, as Don has pointed out, since the price isn't going to be a big difference one way or the other in the used vehicle market, get the better choice of the two.

And, if you can find one that's NOT flex fuel, that's the one to get. Flex Fuel was a bust IMHO.

Done :thumbsup:

IndyD

 

[all_bran]

All other things being equal, I also vote for the Hemi as having the extra power won't cause any issues. But, if you needed to add it someday, it'd costs a bundle. Remember, the upgraded 4.7 engine was pretty new at that point while the Hemi had been around since 2004. With the Durango's 5000+ lbs to move, mpg difference will be minimal and the pricing should be similar Hemi or not.

At the end of the day, either engine should do a fine job for you so look for the best deal you can get in the color you want and go for it. From some quick research, it appears that both the 303 HP 4.7 engine and the older 235 HP 4.7 used the same VIN designation of N in the 8th digit so you'll want to make sure any 4.7 you look at is the "upgraded" double plug version like the Hemi. There was also a "Flex Fuel" 235 HP 4.7 version indicated by a P in the VIN. The early Hemi's were indicated by a D while the later ones used a 2 and then a T for 2009.

Hope this helps.

Don

Ah ha, this is all very good info! So the 303 HP upgraded 4.7 has 16 spark plugs like the Hemi and the old 235 HP 4.7 only had 8? Is this easily identifiable under the hood or is it all buried under those fancy new integral coil packs?

And, just so I understand the VIN codes correctly, could you please verify the below and clear up what the 2 means? Did they put the 376 HP Hemi in some later model 2008 Aspen's?

8th Digit from VIN Code:

• N = 2007 Aspen: 235HP 4.7L V8 Gas Only
  P = 2007 Aspen: 235 HP 4.7L V8 Flex Fuel
  N = 2008-2009 Aspen: 303 HP 4.7L V8 Gas Only
  
  D = 2007-2008 Aspen: 335 HP 5.7L Hemi with MDS
  2 = 2008? Aspen:??HP 5.7L Hemi with MDS
  T = 2009 Aspen: 376 HP 5.7L Hemi with MDS

Thanks!

 

[beastofwar]

Thanks to MDS the Hemi actually has better highway mileage than the 4.7, officially at any rate. Personally, given the choice, I'd get the Hemi and 4/AWD (I forget what the designation for the Durango is) as having to treat the gas pedal so gently when it gets remotely slippery is a little annoying. Not that being careful is a bad thing, but I like to be able to set off from lights with my foot touching the gas pedal? even when it's wet.

 

[Don Fox]

I'm going to pull back a bit on my HP numbers. While it's true the Hemi was rated at more than 335-345 HP in other platforms such as the Charger, 300, etc., I can't find anywhere at present where the Hemi Durango was rated more than that; except for the hybrid which is quite the rare bird.

Find a Hemi and you won't be disappointed!

Don

 

[all_bran]

I think you're right. These reviews show the 2008 5.7 Hemi makes 335 HP, the 2009 5.7 Hemi makes 376 HP and the 4.7 for both years makes 303 HP.

2008 Dodge Durango Performance

2009 Dodge Durango Performance

 

[tomk]

What I've seen on the web for the HP of the 2009 Durango/Aspen 5.7L is:

• 356 HP (probably a typo of 365 HP)
  365 HP (alleged to have come from a Chrysler press release)
  376 HP (what's shown in the 2009 Durango brochure)
  385 HP (I think this is the Hybrid configuration?)

At any rate, get the Hemi!

?tom

 

[all_bran]

I just picked up a fully loaded 2008 Aspen with the Hemi, 4WD, DVD, digital thermostat, Nav, buckets in the rear, etc., etc. and have two questions on the engine. I went to buy oil and a filter for my first oil change and found there are two different filters listed for the 2008 Hemi Aspen. One with 22mm threads and the other with 3/4-16" threads.

Did they change which Hemi was in the 2008 Aspens from the 335HP ones to the 376HP ones mid-year? My VIN has a "2" in the 8th position so which engine does it have, 376HP or 335HP? Which filter do I use, a Fram PH16 (3/4-16") or PH2 (22mm)?

Thanks!

 

[tomk]

The Mopar Parts catalog shows two 5.7L engines for 09 Aspens, but only one for 07-08. I didn't drill down into the 08 pages to see if there are parts that changed based on VIN. VIN.8="2" is the only call out for 07-08. It changed to "T" for 09 and both 09 5.7L engines have the same VIN digit. I'd be surprised if they did a mid-year engine change, if only because of emissions certification issues, so I believe you have the 2008 335HP engine.

The Mopar Parts catalog only shows the 22mm filter for 08 5.7L Aspens, but aftermarket catalogs seem to say it depends on which "adapter" you have installed??