CAT C13 engine specifications and bolt torques

CAT C13 Main Bearing Bolts
step 1 = 50 +- 5 Nm, 37 +- 3.7 lb.ft
step 2 = 90 degrees

CAT C13 Connecting Rod Bolts
step 1 = 130 +- 7 Nm, 95 +- 5 lb.ft
step 2 = + 60 degrees

CAT C13 Main Cylinder Head Bolts
(bolts 1 through bolt 26 in numerical sequence)
step 1 = 170 Nm, 125 lb.ft
step 2 = repeat step 1
step 3 = + 120 degrees
step 4 = loosen all
step 5 = 170 +- 10 Nm, 125 +- 7 lb.ft
step 6 = repeat step 5
step 7 = + 120 degrees +- 5 degrees
Minor Cylinder Head Bolts
(bolts 27 through bolt 34 in numerical sequence)
step 8 = 55 Nm, 41 lb.ft

CAT C13 Arrangement, displacement, bore and stroke

Arrangement
6 cylinder in-line turbo,
aftercooled 

Displacement
12.5 liter, 763 CID

Bore
5.12 in, 130 mm

Stroke
6.18 in, 157 mm

CAT C13 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

CAT C13 Torque

C13 Torque Range 1150-1750 lb.ft 1559-2372 Nm @ 1200 rpm

CAT C13 Dimensions
approx:
length 1280 mm, 51 in
width 1090 mm, 43 in
height 1220 mm, 48 in

CAT C13 Weight
approx:
939 kg
2070 lb

CAT C13 Compression ratio
17.3:1