Market Need: Fit and Finish Still Bite
Replacement engine tank caps often create fit problems across mixed equipment fleets. Buyers need aluminium caps that match thread dimensions and filler neck profiles without lengthy tooling delays.
- Plastic caps crack under heat cycling.
- Off-the-shelf caps rarely match non-standard filler openings.
- Custom casting options reduce part mismatch and rework.
Product Description: Custom Aluminium Caps
Customized Service Aluminium Engine Tank Oil Cap, Filler Plug Cover Caps covers both oil filler and plug cover duties in aluminium.

| Attribute | Detail |
|---|---|
| Product name | Customized Service Aluminium Engine Tank Oil Cap, Filler Plug Cover Caps |
| Material | Aluminium |
| Customization | Yes, service listed |
| Price range | US$ 0.40 - 0.90 |
| Category | Die Casting Machine / Metal & Metallurgy Machinery |
No dimensional specs or thread data appear in the public listing. Buyers should request drawings and sample validation.
Proof Points: What the Data Shows

- Material: aluminium, per product name.
- Price band: US$ 0.40 - 0.90 per unit, suggesting volume-friendly sourcing.
- Customization service: listed for cap and cover variants.
- Certifications: none listed in public product data.
As a compliance note, do not assume CE, ISO, or material traceability without supplier documentation.
Supplier Snapshot
Ningbo Nathan Machinery Co., Ltd. also lists casting capabilities across aluminium, investment, die, sand, iron, and stainless steel. That range points to a metal casting background rather than a single-part distributor.
- Seller: Ningbo Nathan Machinery Co., Ltd.
- Other processes: investment casting, die casting, sand casting, iron and stainless steel casting.
Key Takeaways
- Custom aluminium engine tank oil caps and filler plug covers available at US$0.40 - 0.90.
- Listing supports customization but omits certifications and dimensional specs.
- Suitable for buyers with in-house validation or willing to request documentation.
- Seller’s broader casting capability suggests ability to handle cap variants.
Next Step for Buyers
Request a material certificate and dimensional drawing before ordering. Confirm thread size, gasket style, and surface finish directly with Ningbo Nathan Machinery.
Compliance Caveat

Public listing data contains no regulatory certifications. All compliance, safety, and fit decisions rest on buyer-side specification checks.
See product specs: Customized Service Aluminium Engine Tank Oil Cap, Filler Plug Cover Caps

By:GlobalOEMs