MAHLE pistons, cylinder liners, valves, filters and radiators

MAHLE pistons, liners, rings, valves, camshafts, filters, radiators and starters for passenger car, commercial vehicle, large and small engines. Selection by catalog number and a quotation for your project.

MAHLE piston systems

MAHLE aluminum pistons for commercial vehicles withstand peak cylinder pressures above 200 bar, and steel pistons handle ignition pressures of up to 300 bar. Forged pistons run in series engines with over 130 kW/L. Pistons for large engines reach diameters of up to 580 mm.

Aluminum: over 200 bar
Steel: up to 300 bar
Forged: over 130 kW/L
Diameter up to 580 mm

MAHLE cylinder liners, rings and pins

MAHLE cylinder liners for large engines suit piston diameters of up to 460 mm and come ready to install. Piston rings include compression and oil control rings for cylinder diameters of up to 320 mm. Piston pins reach 150 mm in diameter, with PVD or DLC coatings.

Liners up to 460 mm
Rings up to 320 mm
Pins up to 150 mm
PVD and DLC coatings

MAHLE valve train components

MAHLE intake and exhaust valves come in forged and hot-extruded versions, hard-faced, hardened, nitrided or chrome-plated. Exhaust valves in commercial vehicle diesels run at up to 800 °C. Camshafts come in iron, forged or machined steel and assembled designs.

Valves up to 800 °C
Sodium-filled valves
Seat inserts and guides
Three camshaft types

MAHLE oil management modules

A MAHLE oil management module combines oil filtration and cooling, oil mist separation, pressure and temperature sensors, and regulation of oil and blow-by pressure. Long-life filter elements extend service intervals. The controlled pendulum-slider oil pump supplies oil on demand.

Filtration and cooling
Oil mist separation
Pressure sensors
Pendulum-slider oil pump

MAHLE fuel filters and water separation

MAHLE fuel filter modules for diesel engines drain separated water automatically or through a drain plug. Electric heaters for cold starts deliver up to 600 W, and water level sensors run on 9 to 36 V. CleanLine prefilters are built for low fuel quality.

Heaters up to 600 W
Sensors 9 to 36 V
CleanLine prefilters
Automatic water drain

MAHLE air filters and oil mist separators

MAHLE air intake systems cover dust and water pre-separation and the air filter module with main element and safety insert. The oil mist separator in the ventilation system returns oil to the circuit. Blow-by heaters cover a 200 to 600 W range.

Main element and safety insert
Oil mist separator
Blow-by heaters 200 to 600 W
Thermoplastic head covers

MAHLE radiators and charge air coolers

A MAHLE cooling module combines the radiator, charge air cooler and A/C condenser. Radiator cores are aluminum, with tanks of aluminum or glass fiber reinforced polyamide. A low-temperature radiator cools the indirect charge air cooler.

Aluminum radiator cores
Charge air coolers
Low-temperature radiators
Thermostats and valves

MAHLE starters, alternators and electric drives

MAHLE builds starter motors, alternators and electric motors for agricultural and construction machinery, commercial vehicles and electric lift trucks. Traction motors cover system voltages from 24 to 800 V and outputs from 1 to 250 kW. Small engines get CDI and TCI ignition systems.

Voltage 24 to 800 V
Power 1 to 250 kW
Starters and alternators
CDI and TCI ignition

How to choose a MAHLE component

Selection starts with the engine type and duty: passenger car or commercial vehicle, a large marine, rail, industrial or power generation engine, or a small engine for lawn, garden and forestry machines or a compressor.

For each class MAHLE runs its own range of pistons, liners, rings, valves and filters.

Next, the part is matched by catalog number or engine drawing: piston and cylinder diameter, ring type and material, valve design. For large engines MAHLE makes made-to-print parts and Power Cell Units of piston, pin, rings and liner.

Pistons, liners and Power Cell Units

MAHLE aluminum pistons for commercial vehicles withstand peak cylinder pressures above 200 bar, and steel pistons handle ignition pressures of up to 300 bar; forged pistons run in series engines with over 130 kW/L. Pistons for large engines reach diameters of up to 580 mm.

Liners suit piston diameters of up to 460 mm, rings suit cylinders of up to 320 mm, and piston pins reach 150 mm in diameter. Rings come in iron with chromium ceramic coating and in steel with PVD coating.

Valve train

MAHLE intake and exhaust valves come in forged and hot-extruded versions, and exhaust valves in commercial vehicle diesels run at up to 800 °C. For particularly high loads MAHLE makes sodium-filled valves, together with valve seat inserts and guides.

MAHLE camshafts come in iron, forged or machined steel and assembled designs, supplied as blanks or as ready-to-install parts.

Oil, fuel and air filtration

The oil management module combines oil filtration and cooling, oil mist separation and sensors. Diesel fuel filter modules separate water, electric heaters deliver up to 600 W and water level sensors run on 9 to 36 V; CleanLine prefilters are built for low fuel quality.

Air filter modules carry a main element and a safety insert, and blow-by heaters cover 200 to 600 W. In the aftermarket the filters appear under the MAHLE Original and Knecht brands.

Cooling and electric drives

A MAHLE cooling module combines the radiator, charge air cooler and A/C condenser, with an aluminum radiator core. Low-temperature radiators serve indirect charge air cooling.

MAHLE starters, alternators and electric motors serve agricultural and construction machinery, commercial vehicles and electric lift trucks. Traction motors cover system voltages from 24 to 800 V and outputs from 1 to 250 kW.

The manufacturer

MAHLE GmbH is a German technology group headquartered in Stuttgart and founded in 1920. The company reports 64,000 employees, 127 production locations and 11 R&D centers.

MAHLE develops its large engine components together with makers of marine, rail, industrial and power generation engines.

MAHLE and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of MAHLE and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.