CAT D340, D343, D348 Specs, bolt torques and manuals

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Your Diesel Engine Specs

Basic specs are open to everyone and include images, displacement, dimensions and weight, essential bolt tightening torques, the characteristics of the engine like its power and torque.
Essential bolt tightening torques are the main bearing cap bolt torque, the connecting rod cap bolt torque and the cylinder head bolt torques.


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Cat D340 D343 and D348, bolt torques, literature and engine specs


Cat D340 D343 and D348 Essential Bolt Tightening torques

Main Bearing Bolts
Step 1 = 81 Nm, 60 lb.ft
Step 2 = + 120°

Connecting Rod Bolts
Step 1 = 120 Nm, 90 lb.ft
Step 2 = + 180°

Cylinder head Bolts
Step 1 = 240 Nm, 175 lb.ft
Step 2 = 340 Nm, 250 lb.ft
Step 3 = (repeat step 2)


Literature for CAT D343 and D348


Cat D340 D343 and D348 Specs

CATERPILLAR D340 D343 and D348
Displacement and arrangement:
D340 - 9.7 liter, 595 CID 
  4 Cylinder in line 
D343 - 14.6 liter, 893 CID
  6 Cylinder in line 
D348 - 29.3 liter, 1786 CID
  v12 turbo aftercooled engine

Same bore and stroke for all three: 
Bore - 5.4 in, 137 mm	 
Stroke - 6.5 in, 165 mm
Power 
D340 - In Scraper 619C
285 hp, 212 kW @2100 rpm

D343 - Marine T
continuous (shaft) 238 hp, 177 kW @1800 rpm
Max (flywheel) 395 hp, 294 kW @2000 rpm

D343 - Marine TA
continuous (shaft) 354 hp, 263 kW @1800 rpm
Max (flywheel) 550 hp, 409 kW @2000 rpm


D348 - Marine TA
continuous (shaft) 703 hp, 523 kW @1800 rpm
Max (flywheel) 1100 hp, 818 kW @2000 rpm

Dimensions:
D343 approx:
length - 77 in, 1955 mm 
(incl heat exchanger)

width - 48 in, 830 mm

height - 39 in, 978 mm	

Weight:
approx:
D343 weight - 2230 lbs, 1014 kg
D348 weight - 8500 lbs, 3850 kg

Compression ratio:
15.0:1


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Phone: +27 72 754 4660
email: steve@barringtondieselclub.co.za
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