3126
149.0 bkW/200 bhp
FIRE PUMP ENGINE
3000 rpm
CATERPILLAR® ENGINE SPECIFICATIONS
In-Line 6 Cylinder, Four-Stroke-Cycle Diesel
Bore — mm (in). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 (4.33)
Stroke — mm (in) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 (5.00)
Displacement — L (cu in) . . . . . . . . . . . . . . . . . . . . . . . . . 7.2 (442)
Aspiration . . . . . . . . . . . . . . . . . . . . . . . . Turbocharged-Aftercooled
Compression Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.0 to 1
Rotation (from flywheel end) . . . . . . . . . . . . . . . . Counterclockwise
Capacity for Liquids (engine only) — L (gal)
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2 (3.5)
Lube Oil System (refill) . . . . . . . . . . . . . . . . . . . . . . . . . . 25 (6.5)
Weight, Net Dry (approx) — kg (lb) . . . . . . . . . . . . . . . . 722 (1,592)
Image shown may not
reflect actual engine.
FEATURES
REGULATIONS
• Factory designed, assembled, tested,
and delivered in a package that meets NFPA 20
regulations. UL and FM certified.
SINGLE-SOURCE SUPPLIER
• Caterpillar:
– Casts engine blocks, heads, cylinder liners, and
flywheel housings
– Machines critical components
– Assembles complete engine
Ownership of these manufacturing processes
enables Caterpillar to produce high quality,
dependable product.
• Factory-designed systems built at Caterpillar ISO
certified facilities
TESTING
• Prototype testing on every model:
– proves computer design
– verifies system torsional stability
– functionality tests every model
• Every Caterpillar engine is dynamometer tested
under full load to ensure proper engine
performance.
UNMATCHED PRODUCT SUPPORT
OFFERED THROUGH WORLDWIDE
CATERPILLAR DEALER NETWORK
• More than 1,500 dealer outlets
• Caterpillar factory-trained dealer technicians
service every aspect of your industrial engine
• 99.7% of parts orders filled within 24 hours —
worldwide
• Caterpillar parts and labor warranty
• Preventive maintenance agreements available for
“repair before failure” options
• Scheduled Oil Sampling (S•O•SSM) program
matches your oil sample against Caterpillar set
standards to determine:
– internal engine component condition
– presence of unwanted fluids
– presence of combustion by-products
WEB SITE
• For all your industrial power requirements, visit
www.cat-industrial.com.
FULL RANGE OF ATTACHMENTS
• Wide range of bolt-on system expansion
attachments, factory designed and tested
5 July 2002
09:31 AM
3126
FIRE PUMP ENGINE
149.0 bkW/200 bhp
STANDARD ENGINE EQUIPMENT
Instrumentation
Instrument panel, LH; engine oil pressure gauge; fuel
pressure gauge; ammeter gauge; water temperature
gauge; tachometer/mag pickup; electric hour meter
Air Inlet System
Air cleaner, regular duty, dry, round type; turbocharger,
watercooled; jacket water aftercooled
Charging System
Charging alternator — 12 volt, 60 amp
Lube System
Crankcase breather; oil cooler; oil filter, RH; oil pan,
center sump; oil filler, RH; oil level gauge, RH;
lubricating oil
Control System
Governor control, vernier and positive lock; mechanical
governor
Mounting System
Front and rear supports
Cooling System
Thermostats and housing; jacket water pump, beltdriven, centrifugal; heat exchanger (installed);
expansion tank
Power Take-Offs
Flywheel stub shaft
Protection System
Stop-start system, automatic (compatible with NFPA 20
requirements, energizable from either of two battery
sources and capable of manual starter actuation)
Exhaust System
Exhaust manifold, watercooled; exhaust outlet, dry;
exhaust elbow 4-bolt flange
Flywheels and Flywheel Housings
Flywheel housing, SAE No. 3; flywheel, SAE No. 3;
SAE standard rotation
Starting System
12-volt electric starting motor, jacket water heater
(2250 watt, 120-240 volt)
Fuel System
Fuel filter, RH; fuel transfer pump (part of governor);
fuel priming pump; primary fuel filter/water separator SL
General
Paint, red; vibration damper; lifting eyes, belt guard
2
5 July 2002
09:31 AM
3126
FIRE PUMP ENGINE
149.0 bkW/200 bhp
PERFORMANCE DATA
Standby Fire Pump Rating — 149.0 bkW (200 bhp) @ 3000 rpm
DM7363-00
rpm
bkW
Percent
Load
g/bkW-hr
L/hr
rpm
bhp
Percent
Load
3000
149.0
100
251.5
44.7
3000
200
100
.413
11.8
3000
134.1
90
256.3
41.0
3000
180
90
.421
10.8
3000
119.2
80
262.8
37.3
3000
160
80
.432
9.9
3000
111.8
75
266.9
35.6
3000
150
75
.439
9.4
3000
104.3
70
271.8
33.8
3000
140
70
.447
8.9
3000
89.4
60
284.5
30.3
3000
120
60
.468
8.0
3000
74.5
50
303.0
26.9
3000
100
50
.498
7.1
3000
59.6
40
330.8
23.5
3000
80
40
.544
6.2
3000
44.7
30
377.1
20.1
3000
60
30
.620
5.3
3000
37.3
25
414.1
18.4
3000
50
25
.681
4.9
3000
29.8
20
469.6
16.7
3000
40
20
.772
4.4
3000
14.9
10
747.4
13.3
3000
20
10
1.229
3.5
3
lb/bhp-hr
5 July 2002
gal/hr
09:31 AM
3126
FIRE PUMP ENGINE
149.0 bkW/200 bhp
INDUSTRIAL RATINGS AND CONDITIONS
Standby Fire Pump ratings represent the output
which may be utilized to drive stationary fire pumps
where the pumping equipment has been sized
according to NFPA 20 guidelines and for expected
use of 30 to 100 hours per year where pump demand
is about 90 percent or less of the certified power.
Standby fire pumps are certified by UL and FM.
Engine performance obtained and corrected in
accordance with ISO 3046/1 standard atmospheric
conditions of 100 kPa (29.61 in. Hg), 30% relative
humidity and 25° C (77° F) at the stated
aftercooler temperature. Performance also in
accordance with SAE J1995, BS5514/1 and DIN
6271/1 standard reference conditions.
03
03
Performance and fuel consumption are based
on 35° API gravity fuel having an LHV of
42 780 kJ/kg (18,390 Btu/lb) when used at 29° C
(84.2° F) where the density is 838.9 g/L
(7.002 lb/U.S. gal).
1308.7 mm (51.52 in.)
842.8 mm (33.18 in.)
978.8 mm (38.54 in.)
01
03
01
03
01
Engine Dimensions
(1) Length
1308.7 mm (51.52 in)
(2) Width
842.8 mm (33.18 in)
(3) Height
978.8 mm (38.54 in)
Note: Do not use for installation design. See
general dimension drawings for detail
(Drawing #205-8805).
PL Reference No.:
TMI Reference No.: DM7363-00
Materials and specifications are subject to change without notice.
The International System of Units (SI) is used in this publication.
LEHH2671-00 (7-02)
©2002 Caterpillar
All rights reserved.
5 July 2002
09:31 AM