Service parts
Item
Description
1
Air motor assembly
2
Connector,
/
in NPTF (e)
1
4
3
Coupler,
/
in NPTF (i)
1
4
4
O-ring, 1
/
in (i) × 1
/
1
1
8
4
5
Tube adapter
6
O-ring, 1 in (i) × 1
1
/
in (e), pack of ten (10)
4
7
Pin,
5
/
in diameter ×
5
/
64
8
8
Coupling rod
9
Piston adapter
10
Roll pin,
/
in diameter ×
1
8
11
Light-duty spring, 1
/
5
32
12
Ball,
/
in diameter
9
16
13
Wear ring, (glass-filled nylon)
14
Piston
15
O-ring,
15
/
in (i) × 1
3
/
16
16
16
Backup washer (nylon)
17
Tube
18
Bung adapter, 2 in NPTF (e)
19
Light-duty spring,
/
in long
5
8
20
Valve disk
21
Valve seat, 1
/
in NPT (i)
1
2
Not all parts are available separately
1)
Major repair kit 393497
2)
Repair conversion kit 398503-3 (used to update pumps with obsolete piston)
3)
See manual 670628 for air motor assembly
in (e), pack of ten (10)
in long
/
in long
5
8
in long
in (e)
Quantity
Part
1
324300-5
3)
1
328034
1
328030
1
X171013-12
1) 2)
1
320972
2
X171000-19
1) 2)
1
320971
1) 2)
1
321615
1
320976
1
171033-5
1) 2)
1
320955
1) 2)
1
171700-36
1) 2)
2
337401
1)
1
337402
2)
1
171000-18
1)
1
337913
1)
1
321316
1
326750
1
320954
1) 2)
1
320952
1
321318
17