Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm — Stage 1 file (+25 hp)
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Stage 1 file for Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm
Target +0 hp. Custom development for your engine.
Chip tuning for Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm ECU
Caterpillar C4 (I) TH337 Acert 128hp (94kW) 499Nm — industrial diesel engine of the agricultural segment of the Caterpillar Inc. group (США, 1925). Stage 1 chip tuning raises power from 128 to 153 hp (+25 hp, +20%) and torque from 499 to 612 Nm (+113 Nm).
Caterpillar is an American maker of heavy equipment and diesel engines, founded in 1925. The CAT C7, C9, C13, C15 and C18 form a range of diesel engines for heavy equipment. The CAT logo is an iconic emblem of the industrial segment. CAT engines are used in construction, mining and marine equipment. DPF/SCR with AdBlue is standard on modern Tier 4 models.
The CAT community is a niche corner of industrial chip tuning. The CAT ECU is a locked platform requiring specialised tooling. Mid-range CAT units power compact construction equipment.
Frequently asked questions
How much horsepower does Stage 1 add for the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm?
After Stage 1 the power of the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm rises from 128 to 153 hp, a gain of 25 hp (+20%). Torque rises from 499 to 612 Nm (+113 Nm).
How does Stage 1 differ from stock on the Caterpillar C4?
Stage 1 on the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm is a software ECU calibration with no hardware changes. The key maps (boost/ignition/lambda/torque) are adjusted while factory tolerances are preserved. The gain is +25 hp with no hardware changes.
Is a Stage 1 remap safe for the TH337 Acert 128hp (94kW) 499Nm?
Stage 1 on the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm is developed while keeping the factory AFR, knock control and temperature limits. Engine life is preserved provided regular maintenance is carried out.
How does Stage 2 differ from Stage 1 on the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm?
Stage 2 on the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm means software + hardware (exhaust, intake, intercooler). The gain depends on the specific hardware combination.
Does Stage 1 void the warranty on the Caterpillar C4?
Stage 1 on the Caterpillar C4 voids the factory warranty on the engine and transmission — this is standard for all manufacturers. CHIPOK provides its own warranty on the quality of the remap.
How quickly is chip tuning of the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm done?
The full remap cycle for the Caterpillar C4 — from reading to writing the final file — takes 30-90 minutes depending on the ECU access method. The file is prepared at CHIPOK in 5-30 minutes.
Can you return to stock after Stage 1 on the Caterpillar C4?
The original Caterpillar C4 ECU is always saved before flashing. Rolling back to the factory firmware is done with the same programmer in 25-30 minutes.
How much does Stage 1 cost for the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm?
The cost of Stage 1 for the Caterpillar C4 TH337 Acert 128hp (94kW) 499Nm is calculated in the calculator on this page — you select the options (DPF off, EGR off, AdBlue off, DTC off, etc.) and the price is capped by the package Max Price. Payment is by credits (1 cr = 1 €), with no subscriptions.