5.2L Isuzu 4HK1 Specs
Engine: |
Isuzu 5.2L 4HK1-TC |
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Manufacturer: |
Isuzu Motors Ltd. |
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Applications: |
2005 - 2020 Isuzu N Series |
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Type: |
4 stroke direct injection (DI) diesel |
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Configuration: |
Inline 4 cylinder (I-4/L-4) |
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Displacement: |
5.19 liters, 317.18 CID |
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Firing Order: |
1 - 3 - 4 - 2 |
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Engine Block: |
Cast iron |
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Cylinder Head: |
Cast iron |
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Cylinder Liner Type: |
Dry |
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Compression Ratio: |
2005 - 2006 |
18.5 : 1 |
2007 - 2015 |
17.5 : 1 |
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2016 - 2020 |
16.5 : 1 |
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Cylinder Bore: |
4.53 in (115 mm) |
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Cylinder Stroke: |
4.92 in (125 mm) |
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Valvetrain: |
Gear driven single overhead camshaft (SOHC), 16 valve (4 valves per cylinder) |
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Valve lash/clearance: |
Intake |
0.4 mm (0.016 in) |
Exhaust |
0.4 mm (0.016 in) |
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Injection: |
Direct injection, high pressure common rail |
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Aspiration: |
Turbocharged, intercooled |
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Engine Dimensions (approx.): |
Length |
40.7 in |
Width |
36.6 in |
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Height |
40.9 in |
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Engine Weight (approx): |
1,170 lbs |
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Engine Oil Capacity: |
Application dependent - refer to owners/service manual; oil capacity varies w/ application & model year |
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B10 Life: |
2017 & prior |
310,000 miles |
2018+ |
375,000 miles |
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Peak Horsepower*: |
215 hp @ 2,500 RPM |
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Peak Torque*: |
2019 & prior |
452 lb-ft @ 1,850 RPM |
2020 |
520 lb-ft @ 1,600 RPM |
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Idle Speed: |
2005 - 2006 |
~ 750 RPM |
2007 + |
~ 650 RPM |
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Max Engine Speed: |
2,400 RPM (@ full load) |
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*2019 Isuzu N-Series horsepower & torque ratings; ratings may vary in alternative applications.
2005 - 2006 Isuzu N-Series Maintenance Schedule (5.2L Diesel, NO DPF)
Service Procedure |
Service Interval |
Notes |
Replace engine air filter |
Every 26,000 miles/12 months |
Inspect @ oil change intervals, replace as necessary |
Replace engine oil & oil filter |
Every 6,500 miles/12 months |
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Replace fuel filter |
Every 13,000 miles/12 months |
Replace fuel filter(s) and drain fuel-water separator |
Replace engine drive belt |
104,000 miles |
Inspect @ oil change intervals, replace as necessary |
Drain/replace engine coolant |
Every 26,000 miles/24 months |
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Adjust valve lash |
Every 52,000 miles |
0.4 mm valve clearance for intake and exhaust valves; excessive engine noise may be caused by poor valve lash adjustment |
2007 - 2010 N-Series Maintenance Schedule (5.2L Diesel w/ DPF)
Service Procedure |
Service Interval |
Notes |
|
Replace engine air filter |
As necessary |
Inspect @ oil change intervals, replace as necessary; air clean assembly has built in filter condition indicator |
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Replace engine oil & oil filter |
Every 10,000 miles/12 months |
--- |
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Replace fuel filter |
Every 15,000 miles/12 months |
Replace fuel filter(s) and drain fuel-water separator |
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Replace engine drive belt |
As necessary |
Inspect @ oil change intervals, replace as necessary |
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Drain/replace engine coolant |
30,000 miles/24 months |
--- |
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Adjust valve lash |
Every 50,000 miles |
0.4 mm valve clearance for intake and exhaust valves; excessive engine noise may be caused by poor valve lash adjustment |
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Clean diesel particulate filter (DPF) |
Initial service: |
100,000 miles/3,000 hrs |
Clean DPF initially @ 100,000 miles, followed by every 70,000 miles |
Subsequent service: |
Every 70,000 miles/2,000 hrs |
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2011 - 2019 Isuzu N-Series Maintenance Schedule (5.2L Diesel w/ DPF)
Service Procedure |
Service Interval |
Notes |
Replace engine air filter |
As necessary |
Inspect @ oil change intervals, replace as necessary; air clean assembly has built in filter condition indicator |
Replace engine oil & oil filter |
Every 10,000 miles/12 months |
--- |
Replace fuel filter |
Every 15,000 miles/24 months |
Replace fuel filter(s) and drain fuel-water separator |
Replace engine drive belt |
As necessary |
Inspect every 10k/12 mo |
Drain/replace engine coolant |
24 months |
|
Adjust valve lash |
Every 50,000 miles |
0.4 mm valve clearance for intake and exhaust valves; excessive engine noise may be caused by poor valve lash adjustment |
Clean diesel particulate filter (DPF) |
100,000 miles/3,000 hrs |
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