Cooling System Service Tools
ST-1138
Belt Tension Gauge
Used to check the belt tension on 11/16 to 7/8 inch width belt.
ST-1274
Belt Tension Gauge
Used to adjust or check the tension on 3/8 to 1/2 inch top width
belt.
ST-1293
Belt Tension Gauge
Use to check the poly V rib belt.
3376399
O-Ring Pick
Used to install and remove o-rings.
3377244
Quick Connect
1/8 NPT male brass CompuchekT fitting.
3377245
Quick Connect
9/16 straight threaded o-ring, brass, CompuchekT fitting.
Cooling System Service Tools Section 1 - Cooling System
N14Page 1-10
The following special tools are recommended to perform procedures in Section 1. The use of these
tools is shown in the appropriate procedure. These tools can be purchased from your local
Cummins Authorized Repair Location.
Tool No. Tool Description Tool Illustration