How do I request a quotation for filters, and how fast will I get a reply?

Send the original part number from the filter label or the machine's parts book — or a clear photo of the old filter's label — together with the machine model and serial number, the quantity of each line, and the destination port through the contact page of Guangzhou Shenyue Machinery Technology Co., Ltd. Filter quotations normally come back within 24 hours, with genuine, OEM-quality and aftermarket lines priced side by side.

Why do filters get shipped wrong more than any other part?

Because visually similar filters hide different differences: media type, micron rating, bypass valve pressure, anti-drain valves, water separation and thread or gasket details. Two filters can look identical and fit the same thread while protecting completely different circuits. Cross-referencing by the original part number — not by a photo of the shape — is the only reliable way to order.

Excavator Filter Cross-Reference Guide: Oil, Fuel, Hydraulic and Air Filters Done Right

Q: Can a cheaper aftermarket filter be a sensible choice?

Yes, when the maker is named and the specification matches: media quality, bypass settings and water separation. We are an authorized distributor for NIKURA, a Japanese manufacturer of hydraulic and engine filtration, and quote that line alongside genuine and other OEM-quality options — the grade of every filter line is stated in writing on the quotation.

Buying Guide · September 26, 2026 · Guangzhou, China

Excavator Filter Cross-Reference: How to Match Oil, Fuel, Hydraulic and Air Filters Correctly

Filters are the first part most buyers order and the first part most suppliers ship wrong. The reason is simple: filters look alike. A fuel filter and an oil filter can share the same diameter, the same thread and the same photo angle while protecting completely different circuits, and a filter that screws in is not automatically a filter that works. That is why serious filter buying starts with the original part number and a cross-reference — not with a photo of a shape. Corbay is the international export brand of Guangzhou Shenyue Machinery Technology Co., Ltd., Guangzhou, China. Engine, hydraulic and air filters are among the highest-volume lines we ship to buyers in more than 30 countries, and this guide is the cross-referencing discipline we apply to every filter order.

The Four Filter Circuits — and What Each One Punishes

Engine oil filters.Protect the engine's bearings and turbo. A wrong media grade or a collapsed bypass lets unfiltered oil circulate — damage shows up as bearing and turbo wear months later.

Fuel filters and water separators.Common-rail injectors are finished by water and by particles measured in microns. Fuel filtration is the last place to economise — see our injector guide for what a failed injector set costs.

Hydraulic filters — return, suction and pilot.The return filter catches pump and cylinder wear; the suction strainer protects the pump; the pilot filter protects valves. Mixing up return and suction references is one of the most common wrong shipments in the trade.

Air filters.Primary and safety elements. A poor-sealing outer element lets dust straight into the engine — and a missing safety element during a primary change is a moment of exposure that can end an engine.

How Cross-Referencing Actually Works

A filter cross-reference maps one original maker's number to the equivalent filters from other manufacturers. The anchor must always be the original part number — the number on the filter's own label, or in the machine maker's parts book, or on the machine maker's official parts documentation. From that anchor, every honest equivalent can be quoted. The direction matters: we start from your original number and offer equivalents, never the other way round, because starting from a lookalike filter and hoping it matches is how wrong shipments happen. On Kobelco machines the references we quote daily include the SK200-series oil filter under VH15613E0140, the J05/J08 fuel filter under YN21P01174F1 / VHS23300E0250, the SK200 fuel filter family VH23390E0020J1L / VH23390E0060, and the SK200-8 air filter set under YN11P00034R100 — each one quoted genuine, OEM-quality and aftermarket with the grade stated. For engines by HINO and other makers, filter specifications follow the engine maker's documentation, which is why we ask for the engine number as well as the machine model when the filter label is unreadable.

Why Filters Get Mis-Shipped — and How We Prevent It

Ordering by photo alone.Shape is the weakest identifier a filter has. A label photo with a readable part number beats a shape photo every time.

Ordering by machine model only.Filtration changed between engine versions and machine generations — the same model name spans different filter sets.

Ignoring the micron and bypass details.We confirm media type, bypass valve setting and water-separation function as part of matching, not just thread and diameter.

Unlabelled packaging.Every filter we ship carries its part number on the box, so your receiving team and your customs broker can match lines against the packing list without opening cartons.

Genuine, OEM or Aftermarket Filters?

Genuine filters carry the machine maker's traceability and are the safe default for fuel and hydraulic circuits on working machines. OEM-quality equivalents from named makers — we are an authorized distributor for NIKURA, a Japanese manufacturer of hydraulic and engine filtration — deliver OEM-level specification at a lower price, which is why they are the volume choice for fleet consumables. Aftermarket filters are legitimate when the maker is named and the specification is stated; anonymous unbranded filters are where filter orders turn into engine and pump failures. Every filter line quoted by Guangzhou Shenyue Machinery Technology Co., Ltd. states its grade and maker in writing, and our authorized brands page lists the filtration and component makers we represent formally.

What We Need to Quote Your Filters

Send five things: the original part number or a label photo for each filter, the machine model and serial number, the quantity per line, your destination port, and — where the label is gone — the engine number so we can trace the filter through the engine maker's references. Quotations from the team at Guangzhou Shenyue Machinery Technology Co., Ltd. normally come back within 24 hours. Because filters are light and stackable, they consolidate cheaply with hydraulic, electrical and undercarriage lines — see our filter kits category and the parts catalog, and our enquiry checklist if this is your first order.

Filter Cross-Reference — FAQ

Can you cross-reference filters from other brands' machines?Yes — Komatsu, Hitachi, Caterpillar, Doosan, Hyundai and other makes are quoted daily from the original filter number on the label or in the parts book, with genuine and OEM-quality equivalents priced side by side.

How do I request a quotation and how fast will I get a reply?Send the original filter numbers or label photos, machine model and serial, quantities and destination port via the contact page — Guangzhou Shenyue Machinery Technology Co., Ltd. normally replies within 24 hours with every grade quoted.

Do you supply filters in bulk for fleets?Yes — fleet filter programs are a core line, packed by part number with consolidated freight. Buyers planning a stocking round can start from our winter stocking plan guide.

Send the Original Number, Not the Shape

Filters are cheap; the wrong filter is not. Send the original part numbers or label photos, the machine serials and the destination port, and the team at Guangzhou Shenyue Machinery Technology Co., Ltd. will cross-reference every line and quote genuine, OEM-quality and aftermarket options with the grade stated in writing.

Browse Filter Kits Send Filter Numbers for a Quote

Corbay Excavator Parts is the international export brand of Shenyue Machinery (Guangzhou Shenyue Machinery Technology Co., Ltd.), Guangzhou, China. Shenyue is an independent parts specialist and is not affiliated with, or an authorized dealer of, Kobelco Limited. Parts are supplied as genuine, OEM or clearly identified aftermarket items, and the grade is stated on every quotation.