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Caterpillar C175-20 Generator Set

The Caterpillar C175-20 is a 3120 kW (3900 kVA) diesel standby generator set powered by a Caterpillar C175-20 engine. It is available at 1247 V, 3-phase and 50 Hz. It holds about 675 L (178.3 gal) of oil, with a maximum ambient rating of 40 °C. The set measures 6719×2377×2556 mm (264.5×93.6×100.6 in).

3120 kW
Standby
105.8 L
Displacement
675.0 L
Oil capacity
3
Document types

How to read your Caterpillar serial & model number →

Service parts for the C175-20

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required

Fuel system

1 required
3890433Fuel filter$34.97eBay

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Fueldiesel
Frequency50.0 Hz
Standby power3120 kW
Standby kVA3900
Prime power2800 kW
EmissionsLow BSFC
ControllerEMCP 4.2
Oil capacity675.0 L
AlternatorSR5
Voltage options1247 V
Phase3
Power factor0.8
Battery voltage24 V
Max ambient40 °C
Dimensions (L×W×H)6719×2377×2556 mm

Engine

Caterpillar C175-20
Oil capacity675.0 L
Displacement105.8 L
AspirationTA
Rated speed1500 rpm

Filters for the Caterpillar C175-20

1

Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.

Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:

SystemFilterDescriptionCross-references
Fuel filterP551316Fuel Filter, Spin-OnCATERPILLAR 1R0755, CATERPILLAR 3890433, NAPA 3685, BALDWIN BF7639 KuduParts $54.00 FridayParts $55.99

Maintenance & consumables

for the Caterpillar C175-20
ItemSpecCapacityPart #Interval
Air filter2310167 eBay $27.50 KuduParts $30.00
Fuel filter3890433 Amazon eBay $34.97 FridayParts $71.99
Oil filter—
Battery—
Belt—
Coolant—
Oil675.0 L—
Spark plug—

Service specifications

9
TypeItemValueUnitCondition
OtherGross Input Torque (TH55-E70)12 667N•m (9350 lb-ft)
OtherGross Input Torque (TH55-E90)12 677N•m (9350 lb-ft)
OtherStall Torque Ratio (TH55-E70)2.23
OtherStall Torque Ratio (TH55-E90)2.23
PressureWS255 pump plunger load238,000lb (107,960 kg)
PressureWS273XD pump plunger load275,000lb (124 738 kg)
PressureWS305XD pump plunger load250,000lb (113 398 kg)
SpeedMaximum Input Speed (TH55-E70/TH55-E90 transmissions)1970rpm
SpeedRated Input Speed (TH55-E70/TH55-E90 transmissions)1900rpm

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the power rating of the Caterpillar C175-20?

The Caterpillar C175-20 is rated 3120 kW standby (3900.0 kVA).

What engine is in the Caterpillar C175-20?

The Caterpillar C175-20 is powered by the Caterpillar C175-20 engine.

What kind of fuel does the Caterpillar C175-20 run on?

The Caterpillar C175-20 runs on diesel.

What is the oil capacity of the Caterpillar C175-20?

The Caterpillar C175-20 engine in the Caterpillar C175-20 has an oil capacity of 675.0 liters.

What is the prime power rating of the Caterpillar C175-20?

The Caterpillar C175-20 is rated 2800 kW prime (3500 kVA), against 3120 kW standby.

What voltages is the Caterpillar C175-20 available in?

The Caterpillar C175-20 is offered in 1247 V, 3-phase.

Which alternator is fitted to the Caterpillar C175-20?

The Caterpillar C175-20 uses a SR5 alternator.

What fuel filter does the Caterpillar C175-20 use?

The Caterpillar C175-20 uses fuel filter part number 3890433.

Which air filter part number does the Caterpillar C175-20 take?

The Caterpillar C175-20 uses air filter part number 2310167.

Parts

1
Part #DescriptionQtySystem
LEXE0605-00April 2013Service part / kit Amazon eBay

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Standby50%615.0162.5
Standby75%770.6203.6
Standby100%1039.3274.6

Available documents

Spec sheet — C175-20 Standby 4000 kW Tier 2 12470V (Caterpillar)Spec sheet — C175-20 Standby 4000 kW Tier 2 4160V (Caterpillar)Spec sheet — Electric power ratings guide (Caterpillar)Spec sheet — Generator Docking Station Prebid RFI Answers 1.0 (Ohio CAT Power Systems Division)Reference — 2024-Wheeler-Product-Line-FINAL (Wheeler Cat)Reference — CM20180319-16263-55470 (Caterpillar)Reference — Cat-Performance-Handbook-2020 (Caterpillar)Reference — Caterpillar-Oil-and-Gas-Ratings-Guide-2021-03 (Caterpillar)Reference — Electric-Power-Pocket-Rating-Guide (Caterpillar)Reference — Electric-Power-Ratings-Guide (Caterpillar)Reference — Foley-Power-Solutions-Brochure 2023 eM6mpoY (Foley Power Solutions)Reference — LECW2462-25 1 oil gas (Caterpillar)Reference — LEXE7582-07 El.Power Ratings Guide (Caterpillar)Reference — Performance-Handbook-45 (Caterpillar)Reference — Pon-Cat-electric-power-ratings-guide-2023 (Caterpillar)Reference — caterpillar-performance-handbook-47 (Caterpillar)Reference — electric power ratings guide 2016 (Caterpillar)Reference — product-overview-2023-2024 (Caterpillar)Parts manual — 3-RHO-catalogo (3-Rho)Parts manual — 94571 product-overview-2025 (Caterpillar)Service manual — Cat-Engine-Tools (Caterpillar)Service manual — EEPS0106-01 (Caterpillar)Service manual — tool2015 (Caterpillar)

This page was generated from the 23 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Full service, cheapest listings

Priced items from this model's own parts manual.

Air filter 2310167$27.50
Fuel filter 3890433$34.97
2 priced items$62.47
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