This K14 hybrid turbocharger is designed for the Iveco Daily 2 models fitted with the 2.5 TD engine, with 100 or 103 hp, from 1988 onwards. Its specification features a high-flow MFS compressor wheel, a 360° bearing stop and high-speed balancing.
Available in three documented preparation levels, it retains a design intended for for Installation without modification of the vehicle, whilst the internal components and casings are adapted according to the chosen stage.
Available tuning packages — Stage 1, Stage 2 and Stage 3
Stage 1
Compressor wheel: MFS high-flow
Bearing retainer: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This modification primarily affects the compressor section in order d to adjust the compression capacity and the air flow rate d. The documented MFS impeller is lighter, larger and taller than the original d impeller; the technical data sheet indicates up to 15 per cent additional compression.
Stage 2
Compressor impeller: MFS high-flow oversized
d' intake housing: re-profiled for accommodate the new impeller oversized
Bearing thrust ring: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
d ’s intake housing is adapted to the oversized compressor impeller. This combination aims to modify the compressor’s flow characteristics without affecting the engine’s final power output.
Stage 3
Compressor impeller: MFS high-flow oversized
d' intake housing: re-profiled for accommodate the new impeller oversized
Bearing thrust: 360°
Turbine impeller: high flow oversized
Turbine casing: re-profiled for ly to accommodate the new impeller oversized
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This version combines the modifications to the compressor side with a turbine wheel oversized and a reprofiled turbine housing. These modifications can alter the flow rate and behaviour of the turbocharger; the result depends on the engine’s overall configuration.
What is a hybrid turbo?
A hybrid turbo retains an architecture suited to the original application d whilst incorporating targeted internal modifications. Depending on the upgrade stage, these may involve the compressor wheel, the housings, the turbine wheel, the thrust bearing or the balancing, in order d to adapt the compression capacity and the air flow rate d. Its appearance alone therefore does not allow d to identify the actual level of tuning.
MFS compressor wheel: standard or ‘ Performance ’?
MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. A standard MFS wheel may retain a geometry equivalent to the original, whilst a ‘ Performance ’ version may feature a geometry tailored to the modification. A standard MFS impeller can be just as polished as an MFS impeller Performance. It is not its appearance that determines its performance, but its geometry and its ability to move more d'air.
Why does the geometry of the blades influence the airflow d?
The compressor wheel draws in and then compresses the air destined for the engine. Its diameter, profile, height, width and the arrangement of its blades influence its aerodynamic behaviour. The result also depends on the casings, the turbine, the boost pressure and the engine tuning; a larger impeller therefore does not automatically guarantee a better result and may affect response time.
Reliability and balancing of the hybrid turbocharger
The documented 360° thrust bearing distributes axial forces around the axis. Balancing the rotor at 150,000 rpm on a Cimat VSR test bench helps to limit vibrations and mechanical stresses, though it does not compensate for inadequate lubrication or incorrect installation.
Engine remapping and preparation
To make the most of the characteristics d of a hybrid turbocharger, thorough preparation is required. Engine mapping, boost pressure, injection, exhaust and cooling must be checked or adjusted according to the configuration. The wastegate must be adjusted when remapping the ECU. The transmission and other vehicle components must also be checked in line with the level of tuning.
Turbo specifications
Manufacturer part numbers
53149707001
53149807001
53149887001
53149907001
Compatible vehicles and applications
Iveco
Daily 2 — 2,.5, TD –100 / 103 hp
2.5-litre diesel engine — from 1988, end date unspecified
Engine code: not specified
Additional technical specifications
Product type: Hybrid Turbo
Turbo model: K14
Engine: 2..5 TD
displacement: 2.5 L
Fuel: Diesel
Power: 100 / 103 hp
Fitting period: From 1988
Fitting instructions
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault.
Check the lubrication circuit, as well as the oil supply and return d.
Check that the pipes and the inlet are clean and free from foreign objects.
Prime the turbocharger in accordance with the applicable recommendations.
Follow the manufacturer’s fitting instructions.
A lubrication fault that is not rectified may lead to further damage to the turbocharger.
How do you identify the correct turbo?
Check the part number marked on the turbo d, the OEM and manufacturer part numbers, as well as the make, model, generation, engine type, power output, mountingYear and engine code. The same engine type may be fitted with several different turbo set-ups.
⚠️ Check your turbo’s part numbers
Before ordering, compare the part number marked on your original turbo d with the part numbers listed in this specification sheet. An identical engine does not always guarantee compatibility.
If in doubt, please contact us with the full part number taken from your turbocharger.
