1
7
5
5
6
(Inlet)
7
11
3
10
9
10
Oil filter
Oil filter adapter
Oil pressure
guage
9 8
4 (Outlet)
3
2
Flow
Appendix D—3870-X1 External Oil Cooler Assembly Details for
HG600/THG600 Series
Ref
No .
Part No .
Description
Qty .
9.
3912-1
Tube, straight connection
(1/2" T x 1/4" P ST)
2
10.
2063
Tee (1/4" NPT 2000 LB A105)
2
11.
2228
Nipple
(schedule 80, 1/4" x 1-1/4")
1
Not
shown
2590
a
Pipe plug (1/8" NPT flush)
1
a
Must be installed in the center hole on the backside of the oil filter adapter.
See reference #29 on page 80 for details on the backside of the oil filter
adapter (part #4222).
Ref
No .
Part No .
Description
Qty .
1.
3870
External oil cooler
1
2.
7001-037NC075A
Bolt (hex head, 3/8"–16 x 3/4",
GR 5)
4
3.
3688
External oil cooler bracket
2
4.
2817
Decal (OUT)
1
5.
2322-1
Tube elbow (1/2" T x 1/2" P steel)
2
6.
2814
Decal (IN)
1
7.
R 3433
Tube (1/2" x .035 SAE J525)
Specify
8.
2021
Nipple (schedule 80, 1/4" x 2-1/2")
1
3870-X1 External Oil Cooler Assembly—Bill of Materials
83
