The Isuzu 6HK1X is a 7.79 L 6-cylinder turbo-charged, direct injection engine rated at 1800 rpm, producing up to 163 kW. It powers generator sets from Isuzu and Westquip, including the 6HK1 and WQ175T4. It holds 40 L (10.6 gal) of oil and 25 L (6.6 gal) of coolant.
Also known as: Isuzu 6HK1X, 6HK1X
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| Oil capacity | 40.0 L |
|---|---|
| Coolant capacity | 25.0 L |
| Displacement | 7.79 L |
| Cylinders | 6 |
| Aspiration | Turbo-charged, Direct Injection |
| Rated speed | 1800 rpm |
| Gross power | 163 kW |
Shared across brands: Isuzu, Westquip
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Heavy duty paper element with dust indicator | — | 250 hr | ||
| Fuel filter | — | 500 hr | |||
| Oil filter | Spin-on | — | 500 hr | ||
| Belt | Fan belt - check tension 10-15mm deflection | — | |||
| Coolant | 25.0 | — | |||
| Oil | Spin-on filter | 40.15 qt | — | 500 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The Isuzu 6HK1X engine has an oil capacity of 40.0 liters.
The Isuzu 6HK1X has a displacement of 7.79 liters with 6 cylinders.
The Isuzu 6HK1X powers 2 generator set(s), including Isuzu 6HK1, Westquip WQ175T4.
The Isuzu 6HK1X uses oil filter part numbers Isuzu 1134202322, Isuzu 1132401220, Donaldson P550596.
The Isuzu 6HK1X uses fuel filter part numbers Isuzu 8981527372, Isuzu 1132400440, Donaldson P502424.
The Isuzu 6HK1X uses air filter part numbers Donaldson P500248, Donaldson P537877, Donaldson P777869.
The Isuzu 6HK1X oil change interval is every 500 hours.