Is this a quality brand? Can I trust it to last that long. I have never used one, but I know how disheartening it is to put in a new "inexpensive" t-stat then have to replace it 8,000 miles down the road. Anyone had any luck with them

Stay away of crown, you'll be lucky to get not 8k miles, but 1000... It starts leaking.

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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.

What is thee best brand to go with?

I put in a Crown 3 years ago in the Sport, and the OE in the LTD, they are both working the same, not very good.

I would not use a Crown for any moving part that might be detrimental to the engine.

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2006 LTD Bright Silver loaded with all the needed mods, CCV intact.
Proudly supporting CRD vendors, and their development of quality parts and accessories.
Equipped with HDS thermostat, plenty of heat, faster warm-ups, increased fuel mileage.

Use the OEM part! Do not waste your money on Crown China junk!
Several OEM dealers have the OEM Mopar parts listed on the web for around 100 bucks
Factory Chrysler Parts: http://www.factorychryslerparts.com/productSearch.aspx?searchTerm=5142601AA
Factory MoparParts.net: http://www.factorymoparparts.net/oe-mopar/5142601aa?search_str=5142601AA
Search online for: 5142601AA part number...find the best deal/price....

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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

I should have a good used OEM thermostat (only 14,000 miles on it) available at the end of March. First one willing to pay shipping can have it just shoot me an email. You will need to get a thermostat to block gasket PN5066806AA or make one of your own.

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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

I just ordered that oem one from factory jeep parts. Should be here Tuesday, and I am I Teresa to see how much it will help my mpg