Stainless steel oil cooler core, copper-brazed
Oil Cooler Factory · Shandong, China

Oil coolers, made in our own factory.

Engine, transmission and hydraulic oil coolers in 304 stainless steel, copper-brazed — 1,000+ models for trucks, cars, construction machinery and marine engines.

1,000+ modelsin regular production
FST001–FST304our in-house reference range
304 stainless · copper-brazednot aluminium
Wholesale onlymixed models from 100 pcs
Who we serve

Built for the trade, not for retail

We supply businesses that sell or fit oil coolers every day. Tell us which one sounds like you — we will talk in the terms you are used to.

Auto parts wholesalers

Stock the models your market asks for. Combine different models in one order to reach 100 pcs, and add new references as your customers ask.

Ask for your models →

Workshops & fleets

Send a photo or the OE number of the cooler you are replacing. We confirm the exact match before you order, so the part fits the first time.

Confirm a match →

Importers & traders

Factory-direct supply with export packing. We quote EXW, FOB, or with delivery to your city — tell us the destination and we do the maths.

Get a landed price →
Product range

One factory, the full range

Round canister coolers, stacked-plate coolers and complete modules — all in 304 stainless steel with copper brazing. Send an OE number or a photo and we will point you to the right one.

Round canister engine oil coolers

Engine oil coolers — round type

The classic filter-seat design for diesel engines, including the Isuzu, Cummins and Hino applications our buyers reorder most.

Stacked plate oil coolers

Stacked-plate oil coolers

Long and wide plate coolers for truck and car engines, gearboxes and hydraulic systems. This is the heart of our range — most of the FST series.

Transmission and module oil coolers

Transmission & module coolers

Gearbox oil coolers and complete cooler modules for automatic transmissions and construction machinery, built to the original sample.

Stainless plate oil cooler with protective caps

Finished like we would fit it ourselves

Every cooler is checked piece by piece before packing, with ports protected by caps so it reaches you clean and ready to fit.

Oil cooler core detail

Custom production

Send a drawing or a sample — we produce to your specification, including models the market no longer supplies.

Measurement guide

Don't know the OE number? Photograph your old cooler like this — I will do the rest.

Most used coolers carry no readable OE number — that is normal. Take these photos of your old cooler with a caliper or a tape measure on the part, exactly as shown below. You do NOT need to write down any numbers: send the photos to us on WhatsApp, and I will read every measurement from the scales in the photos and confirm the exact model for you, personally.

Overall length — tape along the whole cooler

1Overall length

Lay the tape along the whole cooler, from one end to the other.

Port centre distance — tape between the two round ports

2Port centre distance

Measure centre to centre between the two round ports.

Port flange — caliper across the flange face

3Port flange

Caliper across the flange face — and one straight photo of the face itself.

Mounting-face width — caliper across the widest part

4Mounting-face width

Caliper across the widest part of the mounting face.

Core thickness — caliper across the plate stack

5Core thickness

Caliper across the plate stack, like in this photo.

Core width — caliper across the end of the core

6Core width

Caliper across the end of the core.

The small step where the seal sits

7The small step

A close-up of the step where the seal sits — this small edge matters.

+ One photo of the whole cooler — from the mounting side, no tools in the shot. Together with the seven photos above, that is everything I need to match your model. No caliper? A tape measure or even a ruler in the photo works too — what matters is that I can see a scale against the part.

Inside the factory

A real factory, on camera

No stock photos, no staging — the owner walks you through the plant himself, with real photos of every workshop area below.

The owner walks the plant (47 seconds, tap to play): yard → stamping → machining → stock → testing room → finished goods → packing

The first thing a serious buyer checks

Before a wholesale buyer places an order, they check whether the factory is real. Our own workshop is the proof — the same people and benches that will make your order.

The photos below show the same areas you just walked through in the video — match them frame by frame. A real factory proves itself.

Stamping workshop
Stamping workshop
Stamping line
Stamping line
Stamping stations at work
Stamping stations at work
CNC machining area
CNC machining area
Automatic punching area
Automatic punching area
Core and parts stock
Core & parts stock
Semi-finished area
Semi-finished area
Finished goods area
Finished goods area
Packing and pressure-testing area
Packing & pressure-testing area
Why ZHIMINGYAN

Why buyers stay with us

Stainless, not aluminium

The original coolers on many engines are aluminium and fail early. Ours are 304 stainless steel with copper brazing — the upgraded version buyers ask for by name.

Models only we make

Several models in our range are produced by no other factory in China. If your supplier says a model is discontinued, ask us before you give up on it.

Confirmed before you pay

Similar-looking coolers often differ in size or ports. We check your OE number, photos and dimensions against the model before any payment, so there are no wrong parts.

Mixed orders welcome

You do not need 100 pcs of one model. Mix models in a single order to reach 100 pcs — the practical way to stock a range without over-buying.

Popular applications

Applications our buyers ask for most — send the OE number and we confirm the exact cooler.

Isuzu 4HF1 / 6HK1 Cummins DAF Volvo Scania Hino Hyundai construction Toyota Camry gearbox JAC ZF transmissions
How to order

Three steps to your price

1

Send the reference

An OE number, a photo of your old cooler, or a drawing — plus the quantity and your city.

2

We confirm the match

We check the model, confirm we have it, and quote — EXW, FOB, or delivered to your city.

3

Production & delivery

Deposit confirms the order, we produce and pack for export, and the balance is settled before shipment.

The FST catalogue

FST001–FST304, one reference system

Our products carry in-house FST references so we can talk about the exact cooler without confusion. FST codes are our internal references — the fitment is always confirmed against your OE number or sample.

FST001 – ~FST070

Round canister engine oil coolers.

~FST071 – FST295

Stacked-plate coolers — long and wide formats.

FST296 – FST304

Complete modules and housed units.

Open the catalogue Get the full PDF on WhatsApp
FAQ

Questions buyers ask first

What is the minimum order?

100 pieces per order — and models can be mixed. You do not need 100 of the same cooler; combine references to reach 100. For a first cooperation, talk to us — quantities can be discussed.

How do I know the cooler will fit?

Send the OE number, or clear photos of your old cooler with its dimensions. We match it against the model and confirm with you before you pay anything. Similar-looking coolers are often different inside — this check is what prevents wrong orders.

What if I don't have the OE number?

Use our measurement guide: photograph your old cooler with a caliper or tape measure on it, exactly as shown — no numbers to write down, I read them from your photos. Many regular buyers started exactly this way.

Can I get a sample first?

Yes, samples are available before a bulk order so you can check quality and fitment yourself. A sample fee applies — we do not send free samples.

Can you produce to my drawing or brand?

Yes. We produce to drawings and samples, and we can pack with your brand for regular orders. Send the specification and we will confirm what is possible before quoting.

How do payment and delivery work?

A deposit confirms production and the balance is settled before shipment; exact terms are written in the proforma invoice before you pay. We quote EXW or FOB, or arrange delivery to your city or your forwarder's warehouse in China — tell us which you prefer.

Which countries do you supply?

Our regular markets include Russia and Central Asia, the Middle East and Southeast Asia. If your country is not listed, ask — export packing and documents are routine for us.

Send us your OE number today

WhatsApp: +86 133 0635 5514 · Email: guangyanchi267@gmail.com

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