CSF 2314 Radiator Review
#21
Only difference between 2314 and 2306 is core height
Okay, so the key question is how to determine if your Gen1 4Runner 1986-1988 takes the 2306 or the 2314, other than measuring what's installed now which may or may not be the right one if it's ever been changed. In mine ('87 22RE, SR5, MT5, cold-climate version) uses the 2306 as a direct fit. So far I've not seen anyone say the 2314 is a direct fit (no mods) for a 86-88 22RE truck.
So we have:
1986 22RE, MT5, DLX --> 2306
1987 22RE, MT5, SR5 (cold climate) --> 2306
1988 22RE, DLX --> 2306 (2314 shroud holes didn't line up, and shorter than original)
So we have:
1986 22RE, MT5, DLX --> 2306
1987 22RE, MT5, SR5 (cold climate) --> 2306
1988 22RE, DLX --> 2306 (2314 shroud holes didn't line up, and shorter than original)
ONLY DIFFERENCE I SEE BETWEEN 2314 AND 2306 IS CORE HEIGHT
Previous owner said truck has the "tow package" cooling system - if it means anything.
Ken at CSF headquarters in rancho Cucamonga, Ca said it must be a 2306 (old one had serial number sticker but no part number).
THE 2306 fits Perfect like my old one.
CSF and Summit Websites say 2314 fits. However, a review on Summit Racing's site itself said shroud needed to be trimmed. There must be different sizes of radiator and shroud for the 22R-E
ONLY DIFFERENCE I SEE BETWEEN 2314 AND 2306 IS CORE HEIGHT. It only affects fit with shroud.
CSF 2314 DOES NOT FIT MY SHROUD
MAKE SURE YOU MEASURE YOUR SHROUD AND CORE HEIGHT OF EXISTING RADIATOR BEFORE ORDERING
CSF 2314 CORE HEIGHT
CSF 2306 CORE HEIGHT
ONLY DIFFERENCE I SEE BETWEEN 2314 AND 2306 IS CORE HEIGHT. It only affects fit with shroud.
Last edited by RAD4Runner; Sep 13, 2020 at 01:16 PM.
#23
I am not sure if it matters for fitment, but technically the 3-Row CSF radiators are supposed to be direct replacements for the trucks that had a 3-row radiator from the factory (towing package, maybe 2wd 1-ton models).
The vast majority of the trucks and 4-Runners came with 2-row radiators from the factory.
The vast majority of the trucks and 4-Runners came with 2-row radiators from the factory.
#25
My trucks both came with 2 row radiators. I got 3 row radiators from a good shop in Yuma, some 20 years ago. Why? Yuma is HOT. 24/7/365 it's hot. Miserable place.
A couple years back, my 4Runner blew the top tank off while I was driving. Held the right pressure really well, from the way it looked. Definate adventure. Since I live in Oregon now, and it's a bit cooler (think difference between Hell and Antarctica), I went ahead and replaced it with a normal 2-row. It's doing fine.
Just my experience...
Pat☺
A couple years back, my 4Runner blew the top tank off while I was driving. Held the right pressure really well, from the way it looked. Definate adventure. Since I live in Oregon now, and it's a bit cooler (think difference between Hell and Antarctica), I went ahead and replaced it with a normal 2-row. It's doing fine.
Just my experience...
Pat☺
#26
Do you happen to know what the differences are between a truck with the Cold Weather package and one without? I haven't found any concrete information on what parts are different and why.
My trucks both came with 2 row radiators. I got 3 row radiators from a good shop in Yuma, some 20 years ago. Why? Yuma is HOT. 24/7/365 it's hot. Miserable place.
A couple years back, my 4Runner blew the top tank off while I was driving. Held the right pressure really well, from the way it looked. Definite adventure. Since I live in Oregon now, and it's a bit cooler (think difference between Hell and Antarctica), I went ahead and replaced it with a normal 2-row. It's doing fine.
Just my experience...
Pat☺
A couple years back, my 4Runner blew the top tank off while I was driving. Held the right pressure really well, from the way it looked. Definite adventure. Since I live in Oregon now, and it's a bit cooler (think difference between Hell and Antarctica), I went ahead and replaced it with a normal 2-row. It's doing fine.
Just my experience...
Pat☺

I was just mentioning that replacing the original 2-row with the CSF 3-row might explain the fitment issues, but I am not sure.

#27
It always comes up when I use the VIN # to look up parts. So far I've found the starter and the muffler+tailpipe to be atypical part numbers. It wasn't sold as a "cold weather package", but rather was purchased in the upper Midwest and apparently the trucks shipped there came so equipped. The dealer never mentioned it when I bought it back in '87.
#28
I was just mentioning that replacing the original 2-row with the CSF 3-row might explain the fitment issues, but I am not sure.

Having said that, I didn't have the slightest trouble with fit of the 3-core unit. I bolted the radiator in, put the same hoses I had used before with the 2-core units on, and the fan shroud. It was like I had just put another OEM factory radiator on.
Filled it, burped it, and awaaaaay I went. For whatever reason there might be, I have more trouble with getting ALL the air out of the pickup. I have to put "water wetter" in to get all the air out. Other than that, they both work(ed) just fine.
Just my personal experience.
Pat☺
#29
I don't know about the CSF radiators. I don't think CSF existed when I put my 3-core radiators in my trucks. 
Having said that, I didn't have the slightest trouble with fit of the 3-core unit. I bolted the radiator in, put the same hoses I had used before with the 2-core units on, and the fan shroud. It was like I had just put another OEM factory radiator on.
Filled it, burped it, and awaaaaay I went. For whatever reason there might be, I have more trouble with getting ALL the air out of the pickup. I have to put "water wetter" in to get all the air out. Other than that, they both work(ed) just fine.
Just my personal experience.
Pat☺

Having said that, I didn't have the slightest trouble with fit of the 3-core unit. I bolted the radiator in, put the same hoses I had used before with the 2-core units on, and the fan shroud. It was like I had just put another OEM factory radiator on.
Filled it, burped it, and awaaaaay I went. For whatever reason there might be, I have more trouble with getting ALL the air out of the pickup. I have to put "water wetter" in to get all the air out. Other than that, they both work(ed) just fine.
Just my personal experience.
Pat☺
#30
Ahhhh! OK, that's cool.
I have no idea, however, if the ones I put in my trucks were made by CSf, or who. I didn't ask. They fit easily and correctly, and have been working since the 90's, so I didn't really care who made them. I left that to the radiator shop I bought them from. Maybe I should have checked who made them but I didn't. They may well be CSF.
At the time I was working 12-14 hours a day, 6 days a week, had 5 kids to care for, and some property to maintain. I was too tired, and busy, to really give a darn who made the radiators. I just took them home and installed them, and was happy.
Just my experience...
Pat☺
I have no idea, however, if the ones I put in my trucks were made by CSf, or who. I didn't ask. They fit easily and correctly, and have been working since the 90's, so I didn't really care who made them. I left that to the radiator shop I bought them from. Maybe I should have checked who made them but I didn't. They may well be CSF.
At the time I was working 12-14 hours a day, 6 days a week, had 5 kids to care for, and some property to maintain. I was too tired, and busy, to really give a darn who made the radiators. I just took them home and installed them, and was happy.

Just my experience...
Pat☺
#31
2314 v 2306
Hey,
ive run a few different radiators over the years, currently the 2314 in a 95 22RE 5 speed M/T 4x4 pickup. Everything fit. So, I’ve seen aftermarket versions that were taller than the 2314 (hence when I bought a few in a crunch from Oreillys many moons ago), but I was unable to close my hood on one application, which I suspect would happen (to the later trucks/me) if I bought the 2306 for my 1995. I believe the difference is whether the vehicle is M/T v. A/T, or... 4wd v. 2wd. In any case, more volume is almost always better, good find! Plus, I’d like to know if the larger unit can fit in my 86 4Runner 22RE, as new motor coming soon from Jim at 22RE Performance means new radiator for sure.
ive run a few different radiators over the years, currently the 2314 in a 95 22RE 5 speed M/T 4x4 pickup. Everything fit. So, I’ve seen aftermarket versions that were taller than the 2314 (hence when I bought a few in a crunch from Oreillys many moons ago), but I was unable to close my hood on one application, which I suspect would happen (to the later trucks/me) if I bought the 2306 for my 1995. I believe the difference is whether the vehicle is M/T v. A/T, or... 4wd v. 2wd. In any case, more volume is almost always better, good find! Plus, I’d like to know if the larger unit can fit in my 86 4Runner 22RE, as new motor coming soon from Jim at 22RE Performance means new radiator for sure.
#32
Pls see post above. Direct link here:
https://www.yotatech.com/forums/www....age=2&t=311659
#33
“2306 is taller than 2314, but it only affects how far it extends below, not stick out above“
Ive also seen issues with figment from below, especially on 20-30 year old vehicles that have extremely worn radiator support bushings. The radiator support will contact the edge of the thicker 3 core radiator potentially causing a failure.
Ive also seen issues with figment from below, especially on 20-30 year old vehicles that have extremely worn radiator support bushings. The radiator support will contact the edge of the thicker 3 core radiator potentially causing a failure.
Last edited by jjswenn; Sep 18, 2020 at 11:08 PM.
#34
2314 bottom clearance
Clearance to the radiator support for the 2314 was 1/4 inch. If I had gotten the 2306, I would have placed a foam strip at the bottom radiator support and maybe washers on the mounting holes to avoid rubbing due to vibration.
Both 2314 and 2306 can be used with automatic transmission.
#35
2314 csf
That’s actually good to know. I had some issues with fitting the 2314. After investing, I realized my rad support bushings were totally worn out. After swapping them (and every other bushing) with energy suspension bushings, I have about 1/4” of clearance at the bottom. For a few, I thought my frame may have issues. Good to know.
#37
Radiator Mount/ “Core Support bushings
I suppose they could be called something else, but BOTH of my daily drivers (86 4Runer and 95 pickup 22RE’s 4wd’s) have radiator/ core support bushings where the body (radiator/ core support) mounts to the frame. If they’re in bad shape, you “could” have firmest issues with thicker 3-core and taller/larger radiators. I had it happen. I had installed a csf 2314 many months back. While I had my ARB off and was doing some grill swapage I noticed a distinct dent along the bottom inner corner edge of my new radiator. It was just slight touching and gave me a not so good feeling, you know... Good news is that Energy Suspension makes bushing sets for these old trucks and I was able to remedy the issue in a few hours. New bushings resulted in a good 1/4” of clearance which sounds normal from others. Oh, and this work was done on the later 95 pickup. Oddly enough, the bushings on my nearly 10 year older 86 4Runner were perfectly fine. I guess that’s how things are when comparing 240k miles to 80k original old man miles.
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