Products › Oil Filter
Oil Filter
The oil filter removes dust, metal debris, carbon and soot from engine oil and delivers clean oil to the crank, rods, cams, turbocharger and piston rings. It is the highest-consequence filter in the catalog: a failed oil filter can destroy an engine. That is why the “good vs cheap” differences — canister draw, bypass calibration, seal rebound — matter more here than anywhere else.
Selection Guide
Check the canister draw
A one-piece drawn steel shell is stronger and leak-resistant than a seam-welded or thin-walled shell; it is a reliable quality signal.
Confirm bypass calibration
The bypass valve must open at the specified pressure so oil flow continues if the media clogs — a wrong opening pressure starves or bypasses the engine.
Verify anti-drainback
An anti-drainback valve keeps oil in the filter for cold-start lubrication; it is essential for vertical-mount applications.
Spin-on vs cartridge
Spin-on is a complete canister; cartridge elements (EU/JP vehicles) replace only the media. Match the OE design for the target fleet.
SKU Table
Canonical values (defined once in src/data/products.json). HS code: 8421230000.
| Model | Series | Dimensions | Filtration Efficiency | Media | Applicable Vehicles | Carton Qty | MOQ | Details |
|---|---|---|---|---|---|---|---|---|
| hy-of-spinon | Spin-On | H90mm × OD76mm × 3/4-16 UNF | >=90% @ 20um | cellulose | passenger cars | 30 | 1000 | View → |
| hy-of-cartridge | Cartridge | H78mm × OD64mm | >=90% @ 20um | composite | passenger cars (EU/JP models) | 30 | 1000 | View → |
| hy-of-hd | Heavy-Duty | H210mm × OD118mm × 1-12 UNF | >=95% @ 20um | glass-enhanced | heavy trucks, construction machinery, agricultural machinery | 12 | 500 | View → |
| hy-of-longlife | Long-Life | H90mm × OD76mm × 3/4-16 UNF | >=95% @ 20um | nano composite | passenger cars (extended oil-change interval) | 30 | 1000 | View → |
Procurement Concerns
What a buyer should verify before committing an order in this category.
Filtration-efficiency inflation
Oil-filter efficiency is only meaningful as a beta ratio under ISO 4548 multi-pass testing. "≥90% @ 20µm" must state the test reference — single-pass and multi-pass numbers are not the same. For OEM-level projects, request the ISO 4548 report.
Fitment & compatibility
The thread (3/4-16 UNF vs metric), gasket diameter and bypass opening pressure must all match the OE engine. A wrong thread or a mis-calibrated bypass valve is a return, and worse, can starve or bypass the engine. Confirm the OE number before quoting.
Service life & cold-start behavior
A nano or composite media supports extended oil-drain intervals, while an anti-drainback valve and a high-rebound seal protect cold starts. In cold-climate markets these are not optional — they are the difference between a repeat order and a warranty claim.
Storage humidity
Steel canisters rust in humid sea freight if not protected. Use an oil film inside, sealed polybags, and VCI (vapor-corrosion-inhibitor) paper in the carton; rust inside the can is invisible to the buyer until it contaminates the oil.
Export packaging
Steel canisters are heavy and dent-able. Double-wall export cartons, dividers, and correct carton weight limits protect the shell; a dented can is a quality-perception failure even when the filter works.
If you export to Russia, Central Asia or northern Europe, the anti-drainback valve and seal rebound are not optional extras — they are the product. Cold starts are brutal, and a filter that lets oil drain back or a seal that hardens at -40°C generates warranty claims fast. I would position a “cold-climate” oil filter with a high-rebound NBR seal and a robust anti-drainback valve, and let that specific value proposition win the order instead of a generic price war.
Procurement Q&A
What happens if the oil filter bypass opens?
When the media is clogged or oil is cold and thick, the bypass valve opens to maintain oil pressure, protecting the engine from oil starvation at the cost of temporary filtration.
What is your MOQ for oil filters?
Passenger-car spin-on and cartridge filters start at 1,000 units per model; heavy-duty filters at 500 units.
How do you test oil filters?
100% airtightness test, burst-pressure testing, and bypass opening-pressure calibration, with the option of ISO 4548 test reports for OEM projects.
What tests do you run on oil filters?
100% airtightness, burst-pressure, and bypass opening-pressure calibration on every line, with ISO 4548 multi-pass reports available for OEM projects. Efficiency is stated as a beta ratio, not a bare percentage.
How do you protect steel canisters from rust in sea freight?
We use an internal oil film, sealed polybags and VCI (vapor-corrosion-inhibitor) paper inside double-wall cartons, so the can arrives clean even after weeks in a humid container.
Can you match a specific OE oil filter number?
Yes. Send the OE number and, ideally, a sample; we match thread, gasket, bypass setting, media and canister dimensions and provide a pre-production sample for approval.
What bypass valve opening pressure do you set?
The bypass opening pressure is calibrated to the OE specification for each engine, and every unit is tested. This keeps oil flowing if the media clogs or the oil is cold and thick, without bypassing filtration under normal conditions.
Get a quote
Request a Oil Filter quote
Send your OE number, target vehicle, or market — we match the right SKU and provide a full spec sheet.