Technical register for agricultural, construction and commercial machinery · sourced data

General Motors LC8

Built: 2012-2013 · Series: Other models

More machines from model year 2012

The LC8 comes from General Motors. Production: 2012-2013. The fuel is petrol. The rated output is 218.5 kW. Application: HDG 1 (<=14k lbs). The engine is naturally aspirated. It is a petrol engine. Rated output across the General Motors range ranges from 181.2 to 261 kW; the LC8 sits in the middle of that range with 218.5 kW. Its immediate neighbours are the L20 below it with 181.2 kW and the L96 above it with 221.5 kW. 35 General Motors models across 6 series are on record.

General Motors – other heavy-duty road engines: the collective page of EPA-certified units for heavy US commercial vehicles outside the named ranges, 243 to 350 hp, petrol and diesel, 4.8 to 6.6-litre displacement

General Motors gathers on this collective page engines for heavy US commercial vehicles and vans that the register could not assign to a named range. The group, headquartered in Detroit, was founded in 1908 and is one of the world's largest carmakers. The units listed here carry the factory designations 350, L20, L8T, L96 and LC8; the EPA engine-family codes, such as TGMXE06.6001 or CGMXE04.8581, encode displacement from 4.8 to 6.6 litres.

Read on 3 more paragraphs

The register lists here 5 versions with 243 to 350 hp rated output at 2,500 to 4,500 rpm. Four of the five engines run on petrol, one on ultra-low-sulphur diesel; injection is sequential fuel injection on three engines and direct injection on two. Maximum torque ranges from 284 to 750 Nm at 1,400 to 4,500 rpm, the certification model years range from 2012 to 2026.

Engines of these designations power heavy pickups, chassis-cab platforms and vans sold under the Chevrolet and GMC brands in the North American market; the parallel listing of petrol and diesel versions with a similar engine-family scheme shows GM's typical dual-fuel strategy in the heavy segment.

When buying used, operating hours and service history count, on the petrol versions the condition of spark plugs and injectors, on the diesel version the injection system and exhaust aftertreatment, plus the cooling system and the condition of the engine mounts; since these engines in heavy commercial vehicles are often run under trailer load, it is worth checking the clutch or automatic transmission and its cooling. Spares and service run through the GM authorised workshop network.

Sources: SpecCodex register, model data: General Motors (weitere Heavy-Duty-Straßenmotoren), General Motors (manufacturer)

Technical data

Engine

Engine code75; 85correct
Engine familyCGMXE06.0584; DGMXE06.0584; EGMXE06.0584; FGMXE06.0584; GGMXE06.0584correct
Engine familiesCGMXE06.0584; DGMXE06.0584; EGMXE06.0584; FGMXE06.0584; GGMXE06.0584correct
Fuelpetrolcorrect
Rated output218.5 kW (= 293 bhp)correct
Rated speed4,300 rpmcorrect
Maximum torque368 ft·lbfcorrect
Speed at max. torque4,000 rpmcorrect
Operating cyclepetrol enginecorrect
Injectionsequential injectioncorrect
Aspirationnaturally aspiratedcorrect

Origin and approval

Built from2012correct
Built to2016correct
Model year from2012correct
Model year to2016correct

Other data

ApplicationHDG 1 (<=14k lbs)correct

Frequently asked questions

How much power does the General Motors LC8 have?

The General Motors LC8 delivers 218 kW.

When was the General Motors LC8 built?

Production years: 2012-2013.

What to check before buying

  • Match the data plate against the order: frame size, mounting and rating have to agree.
  • For used units, ask about winding condition and bearing play.
  • Ask about parts availability for this series — the running costs hang on it.

A general list for this type of machine — no substitute for an inspection or an appraiser.

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This page carries 19 individual figures for this model. They come from 2 recorded sources; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.

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Other models in this series

Sources: US EPA — engine certification data (retrieved August 2026) · How we check the data

Diesel engine in 3D section

Turn the model, look inside and click an assembly — each one is explained.

Parts for this engine (13)

Manufacturer part numbers from the official EPA documentation. No prices or availability — those come from the supplier.

Part number Description Manufacturer
12643512 ECM / Motorsteuergerät General Motors
12644904 ECM / Motorsteuergerät General Motors
12647990 ECM / Motorsteuergerät General Motors
12649297 ECM / Motorsteuergerät General Motors
12653784 ECM / Motorsteuergerät General Motors
12654015 ECM / Motorsteuergerät General Motors
12656197 ECM / Motorsteuergerät General Motors
12658390 ECM / Motorsteuergerät General Motors
12658777 ECM / Motorsteuergerät General Motors
12613412 Fuel Injector General Motors
12572706 HO2S General Motors
12612797 HO2S General Motors
12572705 O2 Sensor Switching General Motors

Source: 2012 Model Year On-Highway Heavy-Duty Engine Certification Data

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