A/T - THM 200 & 2004R New Transmission Oil Pan Gasket

SIL 87-31 (Oct)

SUBJECT:
THM 200C & THM 200 4R NEW TRANSMISSION OIL PAN GASKET

A new latex-coated cellulose (hard fiber material) pan gasket entered production on the dates listed below. The new gaskets improve sealing capability by better withstand fastener torques.







Date of Production Change: (See Illustrations)

THM 200 C: May 29, 1986, Julian Date 149
THM 200 4R: June 33, 1986, Julian Date 174

Any model year THM 200 C and 200 4R transmission with a continuous raised rib pan can be serviced with the new cellulose gaskets. When servicing a THM 200 C, or THM 200 4R which has the former flat surface pan, use the early type gasket.

Some service overhaul packages may contain a latex-coated cork (soft material) gasket,. which should not be used with a raised rib pan. The new hard fiber material gasket can be ordered separately, using the appropriate part number, as listed below.

SERVICE PARTS INFORMATION

THM 200 D Gasket Trans. Oil Pan (Cellulose) P/N 8648529

THM 200 4R Gasket Trans. Oil Pan (Cellulose) P/N 8657387

When replacing the oil pan gasket, it is critical that a torque wench is used to tighten the hex head pin screws. Hand torque all THM 200 4R hex head screws 8-14 N.m (6-10 lb. ft.) and all THM 200 C hex head screws 10-16 N.m. (7-12 lb. ft.). This is a new torque specification for the oil pan bolts on the THM 200 C.