Anybody change theirs. Mine started leaking.. PN ?

Where are they leaking?
If the leaks are where the rubber hose sections clamp to the steel lines, the rubber hose can be replaced.
Which brings up another question. I can't find replacement transmission cooler hose that will hold up longer than a year. Anything better out there?

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TWO Identical 2005 Liberty Sport CRDS
#1 CRD, 174,000 miles. Eco tune, Samco hoses. Mobil1 0-40w used since day one
#2 CRD 143,000 miles. Bought used (unknown history) with 100,000 miles. Samco hoses.
Eco tune, new rockers, and 5 volt glow plugs installed at 124,000 miles

If they are leaking where the quick disconnect attach to the cooler I believer there are repair kits.

jeepdan - not to be difficult but are you sure what you are getting is top rated transmission hose. I ask because often the cheap auto parts places are not all that up on hoses so they might be selling you 1) heater hose which won't do at all; 2) fuel hose but the cheaper versions that I've seen die by cracking when used with gasoline in like a year; 3) marine grade all fuel rated fuel line which might work and is the minimum one should use as fuel line; or 4) transmission hose (I would be sure to only purchase name brand not house brand).

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

My transmission hoses that I replaced are all transmission Napa hoses uscg rated (us coast Guard, aka marine) and I haven't had an issue with them. I think the Mercedes 300sd has gates, also from napa and seems to be fine so far.

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2005 kj CRD, samco, suncoast tc, provent, Kennedy lift pump, GDE ECO full torque, 2nd gen filter head, 245/70/16 a/t tires, mopar light bar, fumoto oil valve, OEM Skid Plates, ARB Front bumper and HD OME, tru cool LPD47391 40k GVW tranny cooler (stock cooler delete), FF Dynamics e-fan and shroud, rocker arms replaced, HDS2 190F thermostat.

That's a valid question.

I always ask for USA made hose for auto transmission fluid.

Recently I have been getting Transmission Cooler Hose, USA made by Thermoid.
But, after around a year, the synthetic transmission fluid starts seeping out under the clamped hose connection. Then, I tighten the clamps and get a little longer use.
It seems as if the hot synthetic transmission fluid softens the rubber.
I have this problem on both CRDs and my 98 Grand Cherokee

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TWO Identical 2005 Liberty Sport CRDS
#1 CRD, 174,000 miles. Eco tune, Samco hoses. Mobil1 0-40w used since day one
#2 CRD 143,000 miles. Bought used (unknown history) with 100,000 miles. Samco hoses.
Eco tune, new rockers, and 5 volt glow plugs installed at 124,000 miles

Transmission hose is a special hose that is designed to stand up to the high temperatures and components of transmission fluid which can be in excess of 200 degrees going to the cooler. Pressure is not a big issue as the hot fluid is not subjected to high pressure going to or leaving the cooler. No other type hoses will stand up to these temperatures and fluid conditions subjected to by hot transmission fluid over time.
Jegs, Summit, and others all sale high quality transmission hose designed for this application. Make sure you get the correct hose if you want it last....

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Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve