Agricultural · ECU Remapping
John Deere AGRICULTURE SELF-PROPELLED SPRAYERS R4045 9.0l 351 hp Tuning (2010–)
Factory specification and Stage 1 remap gains for the John Deere AGRICULTURE SELF-PROPELLED SPRAYERS R4045 9.0l 351 hp (2010–). A Stage 1 calibration adds 44 BHP and 147 Nm — software only, no hardware modifications required.
| Measure | Original | Stage 1 |
|---|---|---|
Power BHP | 351 | 395Estimated +44 BHP · +13% |
Torque Nm | 1123Estimated | 1270 +147 Nm · +13% |
+44 BHP
Stage 1 power gain (estimated)
+147 Nm
Stage 1 torque gain (estimated)
Estimated figures are based on engine, ECU and comparable application data. Actual results can vary depending on software version, machine condition and configuration.
Rolling road
Dyno Graph
Power (BHP, solid) and torque (Nm, dashed) across engine speed (RPM). Peak figures match our database exactly.
Hover / touch the graph
Stock: 351 bhp · 1123 Nm (peak)
Stage 1: 395 bhp · 1270 Nm (peak)
Tuning tool compatibility
This ECU was not found in the manufacturer compatibility databases we cross-reference.
AutoTuner
Not listed in this manufacturer's data — ask us, coverage updates frequently.
Alientech KESS3
Not listed in this manufacturer's data — ask us, coverage updates frequently.
Magicmotorsport FLEX
Not listed in this manufacturer's data — ask us, coverage updates frequently.
Dimsport New Genius / New Trasdata
Not listed in this manufacturer's data — ask us, coverage updates frequently.
Existing customers upload their ECU file via the Regal Tuning File Portal. New to Regal? Request a quote first.
20+ years of ECU calibration
Ready to unlock your John Deere AGRICULTURE SELF-PROPELLED SPRAYERS's real performance?
Tell us your machine and registration — we'll confirm support and the exact expected gains for your engine before any work begins.