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Isuzu 4HK1 Series Engine

Isuzu 4HK1 Series Engine

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Isuzu 4HK1 Series Engine

The Isuzu 4HK1 features the same cylinder stroke as its predecessor, the 4HE1 (4.8L), but employs a 5 mm larger bore diameter. The 5.2L inline 4 cylinder was introduced for the 2005 model year in Isuzu N-Series cab-over trucks. It features a robust cast iron engine block with dry type cylinder liners, a single overhead camshaft with 4 valves per cylinder, and the most recent models have a 375,000 mile B10 life. The 215 horsepower engine was rated to 452 lb-ft through 2019, but received a peak 520 lb-ft rating for 2020 model year trucks.
5.2L ISUZU 4HK1 SPECS

Engine:

Isuzu 5.2L4HK1-TC

Applications:

2005 -2020 Isuzu N Series

Type:

4 stroke direct injection (DI) diesel

Configuration:

Inline 4 cylinder(l-4/L-4)

Displaceme nt:

5.19 liters, 317.18 CID

Firing Order:

1-3-4-2

Engine Block:

Cast iron

Cylinder Head:

Cast iron

Cylinder Liner Type:

Dry

Compression Ratio:

2005 - 2006 18.5:1

2007 - 2015 17.5:1

2016 - 2020 16.5:1

Cylinder Bore:

4.53 in (115 mm)

Cylinder Stroke:

4.92 in (125 mm)

Valvetrain:

Gear driven single overhead camshaft (SOHC),16 valve (4 valves per cylinder)

Valve lash/clearance:

Intake 0.4 mm( 0.016 in)

Exhaust 0.4 mm( 0.016 in)

Injection:

Direct injection, high pressure common rail

Aspiration:

Turbocharged, in tercooled

Engine Weight(approx):

1,170 lbs

Engine Oil Capacity:

Application dependent - refer to owners/service manual；oil capacity varies w/application & model year

Peak Horsepower:

215 hp@ 2,500 RPM

MaxEngine Speed:

2,400 RPM (@ full load)

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Isuzu 4HK1 Series Engine
Store / Engine Spare parts / Isuzu
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