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

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

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.

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

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

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

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

Measure centre to centre between the two round ports.

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

Caliper across the widest part of the mounting face.

Caliper across the plate stack, like in this photo.

Caliper across the end of the core.

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.
Send us your photosNo 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
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.









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.
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.
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.
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.
Applications our buyers ask for most — send the OE number and we confirm the exact cooler.
An OE number, a photo of your old cooler, or a drawing — plus the quantity and your city.
We check the model, confirm we have it, and quote — EXW, FOB, or delivered to your city.
Deposit confirms the order, we produce and pack for export, and the balance is settled before shipment.
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.
Round canister engine oil coolers.
Stacked-plate coolers — long and wide formats.
Complete modules and housed units.
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.
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.
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.
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.
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.
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.
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.
WhatsApp: +86 133 0635 5514 · Email: guangyanchi267@gmail.com