The Power Solutions International 8.1 LT is a 4.92 L 6-cylinder turbo charge air cooled engine rated at 1800 rpm, producing up to 239 kW. It powers generator sets from Hipower, including the HNG 160 T6 and HRNG 165 T6. It holds 25 L (6.6 gal) of oil and 22.5 L (5.9 gal) of coolant.
Also known as: PSI Heavy Duty 8.1 LT
Part of the Power Solutions International 8.1 engine family — 2 variants share parts & fitment.
| Oil capacity | 25.0 L |
|---|---|
| Coolant capacity | 22.5 L |
| Displacement | 4.92 L |
| Cylinders | 6 |
| Aspiration | Turbo Charge Air Cooled |
| Rated speed | 1800 rpm |
| Gross power | 239 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | ||||
| Fuel filter | — | ||||
| Oil filter | Spin-On | — | |||
| Battery | — | ||||
| Belt | — | ||||
| Coolant | 102.7 gallons (L) | — | |||
| Oil | 25.0 quarts (L) | — | |||
| Spark plug | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| 777-10165R | NEMA 3R/IP67 0.09' aluminum panel, black powder coated, weather proof rated; individual Square-D QOU branch breakers; 2 x 20A 125V NEMA 5-20 GFCI duplex receptacles; 3 x 50A 125/250V CS6369 twist-lock receptacles & Lexan covers; 50A California style twist lock (1Ф only); 2 sets 400A single pin Camlocks rated 4,000A with snap covers; color coded Camlocks 3Ф - 5W black, red, blue, white & green; pad lockable 1/4 turn door access with cable trap; auxiliary bus bars with mechanical lugs; 1 dual lug per phase; mechanical lugs up to 250MCM cable. | other_service |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Power Solutions International 8.1 LT engine has an oil capacity of 25.0 liters.
The Power Solutions International 8.1 LT has a displacement of 4.92 liters with 6 cylinders.
The Power Solutions International 8.1 LT powers 2 generator set(s), including Hipower HNG 160 T6, Hipower HRNG 165 T6.