




Bosch B58TU High Pressure Fuel Pump Upgrade – BMW M140i / M240i / 340i / 440i
The Bosch B58TU high-pressure fuel pump is the most popular OEM+ fuelling upgrade for B58 Gen1 engines, delivering the additional fuel volume and rail pressure required for Stage 2, hybrid turbo and ethanol setups. As a genuine direct-fit solution, it retains factory drivability and reliability while unlocking significant performance headroom for tuned applications.
Fitment: BMW B58 Gen1 Models
SKU: 0261520520R / PFP0261520520R
OE Reference: 13518631642
Key Features
Increased Rail Pressure Capability
– Up to 350 bar continuous fuel pressure
– Significantly higher output than the stock pump
– Maintains stable fuelling at high RPM and boost
Higher Fuel Volume Per Stroke
– Larger plunger design for increased flow
– Improved high-load fuelling capacity
– Supports higher ethanol content
Genuine Plug & Play Upgrade
– Direct replacement for the factory HPFP
– Uses OEM fuel lines and connections
– No wiring modifications required
Benefits
– Essential upgrade for Stage 2 and hybrid turbo setups
– Supports higher power and ethanol blends
– OEM reliability with increased performance headroom
Fitment
– BMW M140i F20 / F21
– BMW M240i F22 / F23
– BMW 340i F30 / F31 / F34
– BMW 440i F32 / F33 / F36
– BMW 540i (B58 Gen1)
– BMW 640i (B58 Gen1)
– BMW X3 M40i (B58 Gen1)
– BMW X4 M40i (B58 Gen1)
Installation Notes
– ECU calibration required to realise full performance gains
– New HPFP gasket recommended during installation
– Professional installation advised
About Bosch
Bosch is the OEM manufacturer for BMW’s direct-injection fuel systems, producing high-pressure pumps engineered for factory durability, precise control and high-performance operation.

