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TR1 Engine

The Lister Petter TR1 engine is a small reliable Air Cooled engine offering power between 5.5kWm upto 9.5kWm. Option to have the engine at fixed speed or variable speed between 1500-2500 rpm.


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The Lister Petter TR1 Engine is a naturally aspirated air cooled engine producing power upto 9.5kWm with speeds upto 2500 rpm, variable or fixed speed. This rugged single cylinder engine offers a unique ability to be configured for direct coupling applications or to be used for belt driven applications direct from the flywheel. This allows the versitility of this small engine to be used in pump applications where the pump cannot be coupled directly to the engine.

Additional information

No of Cylinders


Maximum Power

9.5kWm @ 2500 rpm

Minimum Power

5.5 kWm @ 1500 rpm

Max Torque

39.2 Nm @ 1800 rpm

Rated Speed

1500 – 2500 rpm



Fuel Injection

Direct Injection




Air Cooled


Manual (Electric Optional)

Dry Weight



444mm (Without Fuel Tank)





Natural Cooling – The TR1 engines use air to cool. The flywheel fan pushes air over the deep crankcase fins allowing cooling to happen whenever the engine runs. No need for external cooling equipment.

Low Maintenance Costs – On standard models, fuel filters, air filters, oil filters are all common across our ranges so no need to hold multiple part numbers. T-Range engines are modular for each cylinder. Individual heads are used so only 1 head can be replaced instead of the complete engine cylinder head or barrel. Again these are common across TR engines so minimising the need to hold different variations for spares.

Mechanical Governing – On all TR engines the governing is mechanical meaning no electrics to diagnose or replace. The simple governing ensures consistant performance of the engine.

Uptime – All lister Petter engines are built to be srong, rugged and reliable. This enables them to be run for many hours ensuring that your applications is never unavailable. TR engines have a 250 hour service interval as satndard.

The Lister Petter TR1 engines comes with the following items as standard:-

  • Air cleaner
  • Inlet and Exhaust Manifolds
  • Self vent fuel system with individual fuel injection pumps
  • Fuel filter
  • Fuel Tank
  • Self regulating plunger type lubricating oil pump
  • Spin on oil filter
  • Decompressor levers
  • SAE4 Flywheel housing

Many optional extras are available to ensure your Lister Petter TR1 engines is suited to your requirements. Below are some of the common options:-

  • 12v or 24v Electric Start
  • SAE4 to SAE5 Adapter
  • Mechanical Fuel Lift Pump
  • Silencer
  • Keyswicth Panel
  • Gauge Panel
  • Shaft Extensions

The Lister Petter TR engines also have a unique ability to allow a power take-off option from the gear case. This allows additional drive power to be used while the main application is driven from the flywheel coupling. Please enquire for more information on this option.

Power tables for the TR1 engine are shown below.

RPM 1500* 1800* 2000 2500
Continuous Power kWm 5.5 6.7 7.3 8.6
bhp 7.4 9.0 9.8 11.5
Fuel Stop kWm 6.1 7.4 8.0 9.5
bhp 8.2 9.9 10.7 12.7

* For fixed speed engines the powers at these speeds are the same.
1. Power ratings (measured at the flywheel) and fuel consumptions, apply to a fully run-in, non-derated engine without power absorbing
accessories or transmission equipment.
2. The overload capability applies to a fully run-in engine. This is normally attained after a running period of about 50 hours.


Your Lister Petter engine is precision engineered to give years of outstanding reliability and consistent performance in the most extreme temperatures and conditions.