i need to replace the thermostats in a 3208.  i have the stats but i can't remember if the housing uses a gasket or an oring?  anyone know?

I have two of these coming and do not need them ... Will they work for you? if so I'll Donate to the cause ... you just pay shipping
That's was a $100 mistake but I've made that back from ACMOC information base tenfold already..
 

Thanks John i found the part number for the gasket. Dan...what do those stats fit?

Sorry it is quit the list
GENUINE OEM Caterpillar CAT Temperature Regulator (Thermostat) 247-7133 FAST SHIPPING .... C15
COMPATIBLE MODELS
Earthmoving Compactor; 815F II 816F II
Challenger; 65E 75C 75D 75E 85C 85D 85E 95E MT835 MT845 MT855 MT865 MTC835 MTC845 MTC855 MTC865
Generator; SR4 SR4B SR4BHV
Engine - Generator Set; 3456 3606 3608 3612 3616 C13 C13GENSET C175-16 C18 CG137-12 G3406 G3508 G3512 G3516 G3516C G3520C G3520E PM3456 PMG3516 POWER SYS XQG400 XQP500
Engine - Truck; C11 3176 3406E C-10 C-12 C9
Petroleum Products; C-15 C11 C13 C15 C18 C9 CX31-C11I CX31-C13I CX31-C15I CX31-C9I CX31-P600 CX35-P800 G3520B TH31-C9I TH31-C9P TH31-E61 TH35-C11I TH35-C13I TH48-E80
Off-Highway Truck; 793C 797 797B
Engine - Machine; 3176C C-12 C-9 C9
Engine - Industrial; 3176C 1673C 3176B 3196 3306 3306B 3306C 3406B 3406C 3406E 3408 3408B 3456 C-10 C-12 C-15 C-16 C-18 C-9 C11 C13 C15 C15 GEN SE C15 GENSET C15 I6 C16 C175-20 C18 C18 GEN SE C18 I6 C9 C9 GEN SET CG137-08 CG137-12 CPT372 D250GC D300GC D350GC D400GC D450GC D500GC D550GC D600 GC DE450GC DE450SGC DE500GC DE500SGC DE550GC DE600SGC DE605GC DE660GC DE715GC G3406 G3408 G3408B G3408C G3412 G3412C G3508 G3508B G3512 G3512B G3512E G3512H G3516 G3516B G3516C G3516E G3516H G3516J G3520 G3520B G3520C G3520E G3520H G3520J G3612 G3616 SBF214 SUF557 XQP300
Cold Planer; PM620 PM622 PM820 PM822 PM825
Forest Products; 586C
Motor Grader; 14H 140H 143H 160H 163H 16H

Material Handler; C9
Wheel Dozer; 814F II
Underground Articulated Truck; C11
Pipelayer; 587R
Excavator; 330D 330D FM 330D L 336D 330D MH 336D L 336D LN 336D2 336D2 GC 336D2 L 336D2 L XE 336D2 LXE 336D2 XE 340D L 340D2 L

Marine Products; 3126B C12 C280-16 C7 C9
Expanded Mining Products; 6015 6015 FS 6018 MD5125 MD5150C MD6290
Track-Type Tractor; D10R D7R II D9R

Load, Haul, Dump; R1600 R1600G R1700G R2900

Thank You Dan but those stats won't fit anything i own.