Every petrol and diesel engine depends on clean oil circulating through its bearings and galleries, and the engine oil filter is the component that keeps that oil clean between service intervals. Mounted in the lubrication circuit, it traps metallic particles, combustion by-products and carbon deposits before they can score crankshaft journals or accelerate cam lobe wear. When a filter becomes saturated — typically after 10,000 to 15,000 miles depending on the manufacturer's schedule — its bypass valve opens to maintain flow, at which point unfiltered oil circulates freely and wear accelerates sharply. The most common failure mode is progressive clogging combined with seal degradation, which causes oil pressure warnings or, in neglected cases, a persistent oil film on the engine underside. Matching the OE number matters here because thread pitch, gasket diameter and bypass valve opening pressure are all specified per engine variant; fitting an incorrect unit risks either oil starvation or bypassing entirely from cold starts. MANN-FILTER and MAHLE are among the original-equipment suppliers for a significant share of European production cars, and their references are carried across to the replacement market under the same OE numbers. Replacing the filter at every oil change is the single most cost-effective engine maintenance action available.
Each filter listed on this page is mapped to specific engine codes via TecDoc, so use your vehicle's make, model, year and engine code to narrow the results. You can also cross-check the part number stamped on your existing filter against the OE references shown — filter manufacturers typically print the OE cross-reference on the packaging. Getting the exact match ensures correct thread pitch, gasket size and bypass valve pressure, all of which vary between engine families even within the same model range.
OEM filters are built to the engine manufacturer's specification, often by MANN-FILTER, MAHLE or UFI, and carry the exact OE reference number. Quality aftermarket filters from those same suppliers or equivalents such as Bosch are manufactured to matching tolerances and use comparable filter media. The key variable is the filtration rating and bypass pressure — budget filters sometimes use coarser media or lower-grade seals, which reduces their effective service interval, particularly in turbocharged engines that run hotter oil.
The standard recommendation is to replace the filter at every oil change, which typically falls between 10,000 and 20,000 miles depending on the vehicle and oil specification. Some modern long-life service schedules stretch this further, but the filter's capacity to hold contaminants is finite. Reusing a filter from the previous service interval means starting with partially saturated media, reducing its effective lifespan. For turbocharged engines, sticking to the shorter end of the range is advisable because turbo bearings are particularly sensitive to oil contamination.
The most obvious sign is the oil pressure warning light illuminating at idle, caused by the bypass valve opening prematurely or the filter partially blocking flow. You might also notice a slight ticking from hydraulic tappets when the engine is cold, which clears once pressure builds — a sign that residual oil is draining back through a compromised filter anti-drain valve. An oil film or seepage at the filter housing gasket seat, visible after a cold start, indicates the filter's O-ring seal is no longer holding correctly.
Showing 100 of 24,091 Engine Oil Filter OE numbers. Enter the OE on the main OE search to jump to any reference.
