Caterpillar C13 Specs, 
bolt torques and manuals

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Caterpillar C13 engine specs, manuals 
and other literature 
with step by step key bolt torques

Caterpillar C13 essential bolt torques

Caution: Bolt Torques and other data, may vary from serial number to serial number, please check the manuals.

Main Bearing bolts
S/N - JAM1-UP
S/N - KCA1359-UP
S/N - KCB6818-UP
step 1 = 150 ± 7 Nm, 110 ± 5 lb.ft
step 2 = + 60°

S/N - KCA1-1358
S/N - KCB1-6817
step 1 = 50 ± 5 Nm, 110 ± 4 lb.ft
step 2 = + 60°

Connecting Rod Bolts
step 1 = 130 ± 7 Nm, 95 ± 5 lb.ft
step 2 = + 60°


image of the caterpillar c11 cylinder head and numbered bolts
Main Cylinder head Bolts
(bolts 1 through bolt 26 in a numerical sequence)
step 1 = 170 Nm, 125 lb.ft
step 2 = repeat step 1
step 3 = + 120°
step 4 = loosen all
step 5 = 170 ± 10 Nm, 125 ± 7 lb.ft
step 6 = repeat step 5
step 7 = + 120° ± 5°

Minor Cylinder head Bolts
(bolts 27 through bolt 34 in a numerical sequence)
step 8 = 55 Nm, 41 lb.ft

Manuals common to Caterpillar C11 and C13 engines

More Caterpillar C13 manuals and spec sheets

Caterpillar C13 key specs

CATERPILLAR C13
Displacement
12.5 liter, 763 CID
Bore - 5.12 in, 130 mm	 
Stroke - 6.18 in, 157 mm
Arrangement
6 cylinder in-line turbo, 
aftercooled 
Power 
Vocational Truck and Bus Ratings: 
305-370 hp, 227-276 kW
@ 2100 rpm

Line Haul Truck and Bus Ratings:  
380-470 hp, 283-350 kW
@ 2100 rpm

Fire Truck Ratings:  
485-525 hp, 361-391 kW 
@ 2100 rpm

RV Ratings: 
525 hp, 391 kW 
@ 2100 rpm

Torque 
1150-1750 lb.ft 
1559-2372 Nm
@ 1200 rpm


Dimensions:
approx:
length 1280 mm, 51 in
width 1090 mm, 43 in
height 1220 mm, 48 in

Weight:
approx:
1184 kg 
2610 lb

Compression ratio:
17.3:1


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Phone: +27 72 754 4660
email: steve@barringtondieselclub.co.za
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Page Revision #7.1R 06-16