PULLEY GP-FAN DRIVE 7N3881 - Caterpillar

Caterpillar Products:
AllService Magazine SEPD0999, 6th July 2009, "Water Temperature Regulators (Thermostats) Have Been Redesigned". The original article has been revised due to the heavy-duty thermostats that have been redesigned. Refer to the information below.The new regulators (thermostats) have the same part numbers as the previous regulators, but the new regulators have a new change level. The new regulators are interchangeable with the previous regulators. Refer to Table 1 for the affected part numbers.Note: Before using the new regulators, exhaust the old regulators. In engines with multiple regulators, use regulators of the same design.
Table 1
Part Numbers for the Water Temperature Regulators    
Style of Regulator     Part Numbers    
Heavy-Duty Style     142-9675
196-0431
109-2327
7W-0371
247-7133
198-3427
248-5513
4W-4011
6I-4955
125-3345
204-6708
6I-4952
258-5588
283-7776
204-6707
6I-4953
219-3240    
Automotive Style     115-4223
119-3075
284-5421
102-8392
126-5869
306-2103    
On-Highway Style     284-8264
318-0004    
Illustration 1 g01949667
Heavy-duty style (A) New design (B) Previous design
Illustration 2 g01949668
Automotive style (A) Previous design (B) New design
Illustration 3 g01949686
On-Highway style (A) Previous design (B) New design