DONGZHAN AUTO PARTS
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OEM / ODM

Your drawing. Our tooling. One factory floor.

OEM, ODM and mould development for truck and pickup exterior parts. Drawing review under NDA, tooling coordination, T1 samples and volume production with documented process control.

Send a drawing WhatsApp an engineer See the quality system →
  • NDA before files
  • 3–5 days DFM review
  • 25–40 days new mould
  • Tooling coordinated

Two ways to work

OEM or ODM — pick the route that matches your risk

Both routes come off the same production lines and the same quality system. The difference is who owns the design, and who pays for the tooling.

Route A

OEM — we build your part

Your drawing, your specification, your tooling. Best when the part is proprietary, or when fit, finish or branding has to be exactly yours.

  • You own the design and the drawings; NDA before files change hands.
  • Tooling quoted as a fixed line item, ownership stated in the PO.
  • DFM review, T1–T3 iterations and a written golden-sample approval.
  • Volume-based piece price — MOQ tied to tooling amortisation.
  • Exclusivity can be agreed by market or customer group.

Typical use: distributor house brands · fleet & insurance programmes · proprietary accessories

Route B

ODM — our part, your brand

Choose from our exterior parts range, and we apply your logo, label and packaging. The fastest way to widen a shelf without tooling capex.

  • No tooling cost and no mould timeline — the part already exists.
  • MOQ from 20 pcs on stock items; higher on painted or assembled parts.
  • Your logo, label, barcode, master carton and market markings.
  • Samples 5–7 days so you can validate fit before volume.
  • Colour, finish or light-source changes quoted per SKU.

Typical use: traders testing a range · accessory brands · e-commerce sellers · repair groups

Not sure which route fits? Send the part and the volume you expect — we will tell you honestly whether OEM tooling pays back at that volume, or whether an ODM part gets you to market faster.

Drawing to production

Six gates between a drawing and a shipping container

Nothing moves to the next stage without a written output from the previous one. That is how a custom part stays a custom part after 10,000 pieces.

  1. Brief & NDA

    Send a drawing (STEP, IGES or 2D PDF), a physical sample, or a reference part with photos and dimensions — plus your target volume and price. We sign an NDA before technical files change hands.

    NDA signed the same day

  2. DFM review & quotation

    Engineers review draft angle, wall thickness, material choice, mounting points and the tooling approach, then send a feasibility note with a firm tooling price and piece price.

    3–5 business days

  3. Tooling & T1 samples

    Tooling is coordinated with production partners; T1 shots are measured against the drawing. You receive photos and a dimensional report — not just a verbal "looks good".

    Typically 25–40 days for new tooling

  4. Sample approval

    You test fitment and finish on a real vehicle. Tooling is iterated with the partner until the part is approved in writing as the golden sample that anchors production.

    2–3 iterations is typical

  5. Production & documentation

    Production runs on the approved sample with in-line checks (IPQC), a dimensional report, packing spec and loading photos before the container seals.

    Documented QC process

  6. Repeat orders

    Tooling is tracked per project and stored with the production partner, numbered and maintained. Repeat orders skip tooling entirely and go straight into production with the same golden sample.

    Fast restock, same spec

Production & QC

Tooling coordination, production and QC in one flow

Custom lead times hold because tooling, production and inspection are tracked as one project — not handed between three suppliers.

  • Tooling coordination

    Tooling design, machining and try-out are coordinated with specialist partners under our project management. A drawing change does not wait on an outside toolmaker — the team that quotes your part also tracks the tool.

    Coordinated tooling

  • Production follow-up

    Complex cores and electrodes are handled by the production partner we nominate for the project; our team follows up on sampling, dimensional checks and approval before volume starts.

    One project manager

  • Moulding & assembly

    Production runs on partner lines with documented process control. Plastic parts are moulded, painted and assembled — lighting is wired and tested before packing.

    Documented production

  • Metrology & test

    Dimensional inspection to 0.01 mm, spectral analysers for material composition, and the same lighting tests used for every order: -40 °C freeze, 200,000 vibration cycles and IP67 water ingress.

    Measured, not eyeballed

Indicative timeline

What to expect, and when

Every project is quoted with its own schedule; these are the ranges we plan against. The dates that matter are the ones printed on your offer, not on this page.

Indicative OEM and ODM lead times
Stage OEM (new tooling) ODM (existing part)
Quotation3–5 days24 hours
SampleT1 after tooling5–7 days
Tooling25–40 days—
Bulk production20–35 days7–15 days
MOQSet by toolingFrom 20 pcs

Indicative ranges — confirmed per project on the written offer.

IP protection

Your drawing stays yours

  • NDA first. We sign your NDA — or provide ours — before a drawing, sample or BOM is shared.
  • No cross-selling. A customer's proprietary design is not offered to other buyers or listed in our catalogue.
  • Tooling ownership stated. Customer-paid tooling is recorded as customer property in the tooling agreement and the PO.
  • Tooling tracked. Tooling is numbered, tracked per project and stored with the production partner; access is limited to the project team.
  • Exclusivity in writing. Where agreed, market or customer-group exclusivity is written into the agreement with its term and scope.
Request an NDA and start a project

Questions

OEM / ODM FAQ

Tooling cost, ownership and exclusivity — the questions that decide a project.

What does a new mould cost?

It depends on part size, steel choice, number of cavities and the slide/lifter design — a mirror cover and a full bumper are different projects. Send the drawing or a sample and we return a tooling quote with the piece price at your target volume. The tooling price is fixed in the offer; there are no surprise "mould repairs" on the invoice.

Who owns the tooling and the design?

Customer-specific drawings and customer-paid tooling are treated as yours: we state ownership and exclusivity in the tooling agreement and the purchase order, and we do not sell your proprietary design to other buyers. Tooling we develop as part of our own ODM range stays with Dongzhan, and you buy the finished part under your brand.

What is the difference between OEM and ODM here?

OEM means we manufacture a part to your drawing or sample — you own the design and the tooling arrangement. ODM means you choose a part from our existing exterior-part range and we apply your logo, label and packaging. ODM skips tooling cost and starts from a 20 pcs MOQ on stock items; OEM starts with tooling and a signed drawing.

Can you protect the project while we test the market?

Yes — we can agree an exclusivity window by market or customer group for a defined SKU, in writing, before you invest in tooling. We keep grading and sample parts of customer projects out of shared photo libraries and out of our public catalogue listings.

Request a quote

Send a drawing, a sample or even a rough idea.

We reply with a feasibility note, a tooling price and a piece price at your volume — under NDA if you need one first.

  • · Factory-direct pricing
  • · MOQ from 20 pcs
  • · Reply within 2 business hours
Start an RFQ WhatsApp +86 157 5101 6036 shawnxiao178@gmail.com