Vehicle details
- Manufacturer
- Valmet Komatsu Forest
- Model
- 840 TX
- Engine
- 4.9L Sisu 49CWA (CR)
- Displacement
- 4,900 cc
STEINBAUER application
Valmet Komatsu Forest 840 TX Power Module
4.9L Sisu 49CWA (CR)
STEINBAUER performance module for the Valmet Komatsu Forest 840 TX 4.9L Sisu 49CWA (CR), designed to provide increased power and torque while retaining the original ECU programming and factory engine safeguards.
Key benefits
- Up to +25% power and torque increase, depending on application.
- No ECU software overwrite — the STEINBAUER system works alongside the original engine management.
- Injection duration module developed to add performance without generic one-size-fits-all mapping.
- Removable solution that can be removed if required.
- Application-specific development for the individual engine and vehicle or machine application.
STEINBAUER
Performance comparison
Power (BHP)
Illustrative agricultural engine-speed curve
Standard
173 BHP
STEINBAUER
217 BHP
+44 BHP
Torque (Nm)
Illustrative agricultural engine-speed curve
Standard
750 Nm
STEINBAUER
938 Nm
+188 Nm
STEINBAUER Technology
- External ECU technology — Works alongside the original engine management system without permanently rewriting the factory ECU software.
- Load-dependent performance — Additional power and torque are delivered progressively as engine demand increases.
- Application-specific calibration — Developed specifically for the individual engine and application rather than using a generic universal setting.
Illustrative simulated performance graphic based on published application data. Curves are illustrative and are not measured dyno traces.
STEINBAUER Module details
- Part number
- 220109
- Installation
- Plug-in
- Availability
- Available
- Engine management
- Factory ECU retained
- Module Warranty (3 years upon registration)
- 1 year
Valmet Komatsu Forest 840 TX tuning and power increase
The STEINBAUER Power Module is designed for drivers and operators looking for a Valmet Komatsu Forest 840 TX power increase without replacing the factory ECU software. The module works alongside the original engine management system and can be removed to return the vehicle or machine to its standard configuration.
For this application, published performance data shows power increasing from 173 BHP to 217 BHP, with torque increasing from 750 Nm to 938 Nm.
If you are searching for a Valmet Komatsu Forest 840 TX tuning module, this page contains the compatible STEINBAUER part number, installation information, performance figures and available accessories for this exact application.
Why choose STEINBAUER?
Intelligent performance technology
Increased performance where applicable for stronger acceleration and improved working capability.
Improved pulling power throughout the usable engine speed range.
Original ECU programming and factory engine safety parameters remain active.
The vehicle or machine can be returned to its original factory configuration.