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Caterpillar 3412 Specs and key bolt tightening torques

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cat 3412 engine specs
with step by step key bolt torques

CATERPILLAR 3412
Displacement
27.0 liter  
1649 CID
Bore
5.4"
137.2 mm 
Stroke
6.0"
152.4 mm
Arrangement
V12 turbo, 
Power 
Genset Prime Power:
3412 = 725 kVa, 580 ekW @1500 rpm

Marine 3412E
1400 hp, 1044 kW @ 2300 rpm

Key Bolt tightening Torques
Main Bearing Caps
Step1 = 190 lb.ft, 260 Nm  
Step2 = plus 120 degrees

Connecting Rod Bolts
Step 1 = 80 Nm, 60 lb.ft
Step 2 = +120°

Cylinder head Bolts
Step 1 = 270 Nm, 200 lb.ft   
Step 2 = 447 Nm, 330 lb.ft
Step 3 = 447 Nm, 330 lb.ft
Dimensions:
approx:
length - 
3412E Marine - length to flywheel housing
74.4 in, 1890 mm
width - 
53 in
1354 mm
height - 
54 in
1372 mm
Weight:
approx:
3412E Marine - 5584 lbs, 2533 kg

3412TA - 5420 lb,  2463 kg
Compression ratio:
3412 TA Gen Set = 13:1
for others check piston Crown part number

7C2888, 1352837, 149-5566 Crowns = 16.25:1
180-7352 Crown = ratio 16.6:1
pistons 7E 8656 & 7E 0692 = ratio 15.6:1
3408 engine

CAT 3408 genset spec sheet image
CAT 3408
genset spec sheet
CAT 3408 gas engine spec sheet image
CAT G3408
gas engine spec sheet
CAT 3408 3412 disassembly assembly manual p1 image
CAT 3408 - 3412
disassembly and assembly manual page 1 of 311 pages
Click to download manual
CAT 3408 3412 specification manual p1 image
CAT 3408 3412
specification manual p1 of 159
Click to download manual
CAT 3408 and 3412 systems operation, testing and adjusting manual p1
CAT 3408 and 3412
systems operation, testing and adjusting manual
(p1 of 132 pages)
CAT 3406 3408 3412 oil rig spec sheet image
CAT 3406 3408 3412
oil rig spec sheet
CAT 3412E industrial engine spec sheet image
CAT 3412E
industrial engine spec sheet
CAT 3412 marine spec sheet p1 image
CAT 3412
marine spec sheet
Click to download manual

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Phone: +27 72 754 4660
email: steve@barringtondieselclub.co.za
© copyright Steve Barrington 2015

Page Revision #5.2R 9-15