Oil filters remove solid particles from the oil that accumulate in the lubrication circuit due to contamination and wear. With outstanding particle filtration and dirt holding capacity, oil filters from MANN+HUMMEL offer optimum protection and enable long service intervals even under tough operating conditions. Thus, they make a significant contribution to the durable and economical operation of engines in commercial vehicles and industrial applications.

Engine oil filter systems from MANN+HUMMEL are available as spin-on oil filters as well as filter modules. Our oil filter are proven for decades and depending on the requirements, various MULTIGRADE filter media with different filter grades, sizes and service intervals can be used in order to protect the engine from wear. Our wide product range allows a selection for the best suitable oil filter system. Additional functions such as oil cooling, oil pressure and oil temperature measurement as well as soot separation can be optionally integrated into customer specific oil filter modules for commercial vehicle and industrial engines.


Oil filter module with integrated oil separator

Spin-on oil filter with aluminum head

Technical features

Oil filters

Volume flow range

10 bis 200 l/min

Separation efficiency

50 % at 7 to 20 µm

Service interval

2 years and up to 300.000 km

Operating temperature

-40 to 130 °C

Product benefits

  • Maximum system efficiency thanks to high dirt holding capacity with minimal pressure loss
  • Available with a variety of environmentally-friendly high performance MULTIGRADE oil filter media
  • Fast, easy and clean service

Oil filter modules

  • Robust designs meet highest technical requirements
  • Integration of various functions to fulfill individual customer demands e.g. pressure and temperature control

Spin-on oil filters

  • Standardized design
  • Quickly available worldwide

Powerful details

WAVELOCK bayonet lock – evolution of the spin-on filter concept

Spin-on oil filters from MANN+HUMMEL have been proven for years and offer optimum protection. However, the filter change of conventional spin-on filters is power-consuming and only possible with a strap wrench or a comparable special tool. The bayonet lock developed by MANN+HUMMEL for the mounting of spin-on filters sets new standards for easy servicing and reduction of service costs.


The main design of the WAVELOCK system is largely comparable to the conventional spin‑on filter. The fluid to be filtered flows through the filter head axially into the filter and flows through the filter element from the outside to the inside. The cleaned fluid flows out of the filter through its center. The sealing to the environment and between the dirty and clean side of the filter element is respectively made with a radial O-ring. Depending on the respective requirements, the modular design can be used to integrate additional functions such as a filter bypass valve or an anti-drain membrane. The WAVELOCK spin-on filter does not require additional space for fitting or removal.

Cross-section of the WAVELOCK system

Filter head

Dirty side inlet

Clean side outlet

Flow direction

Filter element

Wavelock spin-on filter

Connection of the WAVELOCK spin-on filter to the flange

The key innovation of the WAVELOCK spin-on filter is the design of the connection to the flange on the filter head. A bayonet concept with three bayonet wings was designed to enable a quick and easy service with fitting or removal carried out simply by a 90° rotation. Filter service takes place without the use of special tools, making maintenance and assembly particularly simple and safe. Clearly defined loosening and tightening torques reduce assembly errors.

The sealing between the filter head and the WAVELOCK spin-on filter is made with two radial O-rings. This robust design with pressurized sealing also seals reliably at high pressures and can compensate relative movements in the application. As there is no thread present in the flow area of the fluid, the component cleanliness is considerably increased. Shavings or wear particles from the thread manufacture or fitting process cannot enter the fluid.

Layout and design of the WAVELOCK bayonet lock

Dirty side inlet

Radiale O-ring seal dirty side

Splash guard

Bayonet ring filter head

Bayonet ring wavelock spin-on filter


Radiale O-ring seal clean side

Clean side outlet

Modular filter system

In order to cover a wide range of applications in fuel, oil and hydraulic oil filtration, the integration of the WAVELOCK design into a modular system is currently being implemented. This enables different sizes, diverse filtration requirements and additional functions to be combined in a modular system. The first product family in which the WAVELOCK concept is being implemented is the modular fuel pre-filter portfolio. There are three different filter heads for the complete product range in this size, the standard version, a version with a hand-operated pump and another with an electric fuel pump. The WAVELOCK spin-on filter is available in two lengths. The WAVELOCK spin-on filters are also available with water separation and will be equipped with a variety of filter media. Finally, with the addition of components such as an electric heater or water sensor, the WAVELOCK fuel pre‑filter system is suitable for universal use.


Filter head variants

without hand pump, manual hand pump or electrical hand pump

Spin-on filters

without or with bowl


optional with heater, sensor, water drain plug, WIF-sensor

Advantages of the WAVELOCK system

  • Tool-free and thus fast filter service
  • Combines the simplicity and variability of a spin-on filter with the requirements of modern filter systems
  • Patented bayonet connection as interface between spin-on filter and filter head enables copy protection and prevents the use of inferior filters
  • Increased operational reliability due to radial seals to the environment and between the dirty and clean sides of the filter
  • Improved component cleanliness by eliminating threads to be machined in the fluid area
  • Robust design using established components from spin-on filter technology
  • Modular design covers different sizes and functions
  • Improved total cost of ownership
Contact us!

Personal contact is important for us. You can contact us with your inquiry any time. We are looking forward to your message – by email or telephone.

Further information

The successful partnership with Yuchai is set to continue. After the 5.0 and 8.0 liter diesel engines, the Chinese producer has now decided to equip its 9.0 and 11.0 liter range of diesel engines with oil and fuel filters from MANN+HUMMEL to promote efficiency and durability.

Read more

MANN+HUMMEL has developed a new revolutionary spin-on filter concept with bayonet lock. It simplifies servicing and is available as a modular system.

Read more