| Cummins C-Series Torque Specifications |
| Size MM (inch) |
Class & Application |
Torque Specifications |
| N-m |
lb-ft |
| 10 |
Aftercooler Mounting |
24 ± 3 |
18 |
| 8 |
Aftercooler
Water Hose Clamp |
5 ± 1 |
4 |
| (15/16) |
Air
Compressor Gear Nut |
125 ± 13 |
93 |
| 18 |
Air
Compressor Mounting Nut |
77 ± 7 |
57 |
| 19 & 9/16 |
Air
Compressor to Brace |
43 ± 4 |
32 |
| 24 |
Air
Compressor Water Line |
35 ± 10 |
25 |
| (15/16) |
Alternator
Pulley Nut |
80 ± 8 |
59 |
| 8
Allen |
(Alternator
Shaft) |
|
|
| 13 |
Alternator
Link (Delco 10 SI) |
24 ± 3 |
18 |
| 16 |
Alternator
Link (Delco 15 SI) |
43 ± 4 |
32 |
| 19 |
Alternator
Link (Delco 20-27 SI) |
43 ± 4 |
32 |
| 13 |
Alternator
Mounting Bolt (10-15 SI) |
43 ± 4 |
32 |
| 15 |
Alternator
Mounting Bolt (20-27 SI) |
77 ± 7 |
57 |
| 10 |
Alternator
Mounting Bracket |
24 ± 3 |
18 |
| 13 |
Belt
Tensioner to Bracket |
43 ± 4 |
32 |
| 5
Allen |
Belt
Tensioner Bracket to Block |
24 ± 3 |
18 |
| 13 |
Camshaft
Thrust Plate |
24 ± 3 |
18 |
| 12 |
Connecting
Rod Step
1 |
40 ± 5 |
30 |
| |
Step
2 |
80 ± 5 |
60 |
| |
Step
3 |
120 ± 5 |
88 |
| 18 |
Crankshaft
Damper |
200 ± 12 |
148 |
| 8 |
Crossover
Clamp |
5 ± 1 |
4 |
| 15 |
Exhaust
Manifold |
43 ± 4 |
32 |
| 16 |
Exhaust
Outlet Pipe Mounting |
43 ± 4 |
32 |
| 11 |
Exhaust
Outlet Pipe , "V" Band Clamp |
5 ± 1 |
4 |
| 10 |
Fan
Bracket Mounting |
24 ± 3 |
18 |
| 13 |
Fan
Hub (50mm Bolt Circle) |
24 ± 3 |
18 |
| 16 |
Fan
Hub (60mm Bolt Circle) |
43 ± 4 |
32 |
| 24 |
Flame
Start Aid |
40 ± 4 |
30 |
| 19 |
Flywheel |
137 ± 7 |
101 |
| 18 |
Flywheel
Housing |
60 ± 6 |
45 |
| 10 |
Flywheel
Housing Cover |
24 ± 3 |
18 |
| (1/2) |
Flywheel
Housing Drain Plug |
43 ± 4 |
32 |
| |
Front
Cover Cap |
--Hand
Tighten-- |
| 15 |
Front
Engine Support Mounting |
112 ± 10 |
82 |
| |
Front
Engine Mounting Without Support |
77 ± 7 |
57 |
| 17 |
Fuel
Banjo Screw (In Filter Head) |
32 ± 3 |
24 |
| Slot |
Fuel
Vent Screw in Banjo |
8 ± 1 |
6 |
| 75-80 |
Fuel
Filter |
3/4 Turn After Contact |
| 19 |
Fuel
Low Pressure Supply at Pump |
24 ± 3 |
18 |
| 19 |
Fuel
Low Pressure Return at Pump |
24 ± 2 |
18 |
| 24 |
Fuel
Filter Adapter Nut |
32 ± 3 |
24 |
| 17 |
Fuel
Line Fitting (High Pressure) |
24 ± 3 |
18 |
| 22 |
Fuel
Pump Drive Gear (A) |
93 ± 7 |
68 |
| 27 |
Fuel
Pump Drive Gear (MW) |
105 ± 5 |
77 |
| 24 |
Fuel
Pump Lock |
15 ± 3 |
11 |
| 15 |
Fuel
Pump Mounting Nut |
43 ± 4 |
32 |
| 15 |
Fuel
Solenoid Bracket |
43 ± 4 |
32 |
| 10 |
Fuel
Solenoid Mounting |
10 ± 2 |
7 |
| 10 |
Gear
Cover |
24 ± 3 |
18 |
| 10 |
Gear
Housing to Block |
24 ± 3 |
18 |
| (7/16) |
Gear
Housing Pipe Plugs |
5 ± 1 |
4 |
| 18 |
Cylinder
Head Mounting Step
1 |
50 |
37 |
| |
Step
2 |
150 |
110 |
| |
Step
3 |
200 |
148 |
| 10 |
Injector
Fuel Drain Manifold |
8 ± 1 |
6 |
| 10 |
Injector
Retaining Capscrew |
24 ± 3 |
18 |
| 10 |
Intake
Manifold Cover |
24 ± 3 |
18 |
| 10 |
Lift
Pump Mounting/Cover Plate |
24 ± 3 |
18 |
| 18 |
Lifting
Bracket |
77 ± 6 |
57 |
| 23 |
Main
Bearing Cap Step
1 |
50 |
37 |
| |
Step
2 |
95 |
70 |
| |
Step
3 |
150 |
110 |
| 118-131 |
Oil
Filter |
3/4 Turn After Contact |
| 10 |
Oil
Filter Cover |
24 ± 3 |
18 |
| 17 |
Oil
Pan Drain Plug |
80 ± 4 |
60 |
| 17 |
Oil
Pan Heater Plug |
80 ± 4 |
60 |
| 10 |
Oil
Pan Mounting |
24 ± 3 |
18 |
| 22 |
Oil
Pressure Regulator Valve |
80 ± 4 |
60 |
| 10 |
Oil
Pump Mounting |
24 ± 3 |
18 |
| 10 |
Oil
Suction Tube (Flange) |
9 ± 1 |
7 |
| 10 |
Oil
Suction Tube Brace |
9 ± 1 |
7 |
| 15 |
PTO
Adapter |
77 ± 7 |
57 |
| 13 |
PTO
Adapter Cover Plate A Drive |
43 ± 4 |
32 |
| 15 |
PTO
Adapter Cover Plate B Drive |
77 ± 7 |
57 |
| (3/4) |
PTO
Gear Nut A Drive |
100 ± 10 |
74 |
| (15/16) |
PTO
Gear Nut B Drive |
134 ± 13 |
100 |
| (11/16) |
PTO
Flange Companion |
85 ± 8 |
63 |
| 10 |
Rocker
Support |
55 ± 3 |
40.5 |
| 14 |
Rocker
Lever Nut |
24 ± 3 |
18 |
| 15 |
Starter
Mounting (12 Point) |
77 ± 4 |
57 |
| 10 |
Tach
Drive Retainer |
3 ± .5 |
2 |
| 10 |
Thermostat
Housing |
24 ± 3 |
18 |
| T-25
Torx |
Timing
Pin Flange Mounting |
5 ± 1 |
4 |
| (1/2) |
Turbine
Housing |
11 ± 2 |
8 |
| 10 |
Turbocharger
Compressor |
8 ± 1 |
6 |
| 15 |
Turbocharger
Mounting Nut |
32 ± 3 |
24 |
| 10 |
Turbocharger
Drain Tube |
24 ± 3 |
18 |
| 16 |
Turbocharger
Oil Supply (Both Ends) |
15 ± 2 |
11 |
| 8 |
Water
Hose Clamps |
5 |
4 |
| (3/8) |
Water
Inlet Plugs |
34 ± 3 |
25 |
| 10 |
Water
Pump Mounting |
24 ± 3 |
18 |
| 15 |
Valve
Cover |
24 ± 3 |
18 |
| |
Valve
Cover Oil Fill |
Hand Tighten |
| 13 |
WABCO
Air Compressor Gear |
24 ± 3 |
18 |
| 27 |
WABCO
Gear Hub Mounting Nut |
180 ± 18 |
133 |
| |
Capscrew
Markings and Torque Values |
|
|
| 5 |
Commercial
Steel Class 8.8 |
6 |
5 |
| 5 |
Commercial
Steel Class 10.9 |
8 |
6 |
| 5 |
Commercial
Steel Class 12.9 |
8 |
6 |
| 6 |
Commercial
Steel Class 8.8 |
10 |
5 |
| 6 |
Commercial
Steel Class 10.9 |
15 |
10 |
| 6 |
Commercial
Steel Class 12.9 |
15 |
10 |
| 8 |
Commercial
Steel Class 8.8 |
24 |
18 |
| 8 |
Commercial
Steel Class 10.9 |
34 |
25 |
| 8 |
Commercial
Steel Class 12.9 |
38 |
28 |
| 10 |
Commercial
Steel Class 8.8 |
43 |
32 |
| 10 |
Commercial
Steel Class 10.9 |
64 |
47 |
| 10 |
Commercial
Steel Class 12.9 |
88 |
57 |
| 12 |
Commercial
Steel Class 8.8 |
77 |
57 |
| 12 |
Commercial
Steel Class 10.9 |
112 |
83 |
| 12 |
Commercial
Steel Class 12.9 |
137 |
101 |
| 14 |
Commercial
Steel Class 8.8 |
127 |
94 |
| 14 |
Commercial
Steel Class 10.9 |
180 |
133 |
| 14 |
Commercial
Steel Class 12.9 |
216 |
159 |
| 16 |
Commercial
Steel Class 8.8 |
195 |
144 |
| 16 |
Commercial
Steel Class 10.9 |
266 |
196 |
| 16 |
Commercial
Steel Class 12.9 |
319 |
235 |
|
|
|
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