Suggested alt text: WEILONG wiper blade with multiple adapter types and yellow packaging tube
For importers, distributors and regional agents, choosing a wiper blade supplier is not only about comparing unit prices. The supplier also needs to support the right vehicle coverage, consistent product quality, packaging requirements and a practical sample-to-order process. This guide explains the main points to confirm before starting an OEM/ODM wiper blade project.
WEILONG is a wiper blade manufacturer based in Dezhou, Shandong, China, with more than 20 years of industry experience. The company supplies flat wiper blades, hybrid wiper blades and multifunction wiper blades for passenger cars, SUVs, trucks and buses. Standard product ranges cover passenger cars and SUVs from 12 to 28 inches, and trucks and buses from 24 to 28 inches; other sizes can be customized.
1. Start with vehicle coverage and fitment
A suitable wiper blade program begins with accurate fitment information. Before asking for a quotation, prepare the vehicle models, model years where relevant, blade lengths, front or rear position, connector type and target market. This reduces the risk of receiving a quotation that cannot be matched to your actual sales range.
- Passenger cars and SUVs: 12–28 inches are available in the stated range.
- Trucks and buses: 24–28 inches are available in the stated range.
- Other sizes: customization can be discussed based on the buyer requirement.
2. Confirm the product construction and material options
Material information helps buyers compare suppliers beyond appearance. WEILONG states that its wiper blade products can use natural rubber or silicone rubber for the wiping element. Surface coating options include graphite, silicone and PTFE. Elastic memory steel options include 65Mn manganese steel, SUS301 stainless steel and SK5 high-carbon steel.
The final material and coating selection should be confirmed against the product model, target market, performance requirement and quotation. A buyer should request a product specification sheet before approving mass production.
3. Ask what quality checks are included
A supplier should be able to explain how products are checked before shipment. The quality-check items provided for the WEILONG product range include:
- Environmental material testing
- Durability wiping testing
- High- and low-temperature aging and ozone aging testing
- Chemical corrosion resistance testing
- High-speed aerodynamic wind-load testing
- Wiping clarity, chatter and noise testing
- Salt-spray rust prevention testing for steel strips
- Mechanical structure testing
Testing names alone are not a substitute for project evidence. The stated testing program applies across the product range, while importers should still confirm the acceptance criteria and documentation for the selected order.
4. Review certifications and product conformity documents
The documents supplied for review include an ISO 9001:2015 / GB/T 19001-2016 quality management system certificate. The certificate identifies the quality-management scope as sales of auto parts. A separate technical inspection attestation of conformity identifies wiper as the product, ISO 9258:1989 as the related standard, and the 14–28 product range; the document shows validity through 29 July 2030. Buyers should review the original documents and confirm any market-specific compliance requirements before placing an order.
Certificate image alt text: ISO 9001:2015 quality management system certificate for Shandong Weillong Auto Parts Co., Ltd.
Certificate image alt text: Technical inspection attestation of conformity for wiper, ISO 9258:1989, 14–28
5. Review the production and inspection flow
A clear production flow makes it easier to identify where quality is controlled. The stated WEILONG process includes a rubber strip production line, steel strip and plastic component production lines, followed by final assembly, testing and packaging. Buyers should confirm the checkpoints for incoming materials, assembly, finished-product testing and pre-shipment inspection.
6. Check OEM/ODM and private-label support
Suggested alt text: WEILONG flat wiper blade with private-label packaging
For distributors and regional agents, packaging and product presentation may be as important as the blade itself. WEILONG supports OEM, ODM, branded packaging, sample confirmation and small-batch trial orders. This allows a buyer to validate the product and packaging direction before moving to a larger program.
- Confirm whether the brand artwork, label, barcode and instruction content are supplied by the buyer or developed together.
- Confirm the sample approval process and the exact changes that can still be made after approval.
- Confirm whether the same product specification will be maintained across repeat orders.
7. Compare MOQ, pricing structure and lead time together
The supplied business information indicates a tiered pricing approach rather than one fixed MOQ. For a full-container order, the stated typical lead time is 25–30 days. Buyers should use the inquiry form to provide expected volume and ask for the corresponding price tier and shipping schedule. The final schedule should be confirmed against product selection, packaging, sample approval and order quantity.
Suggested alt text: WEILONG hybrid wiper blades with branded packaging
8. Prepare a complete RFQ before contacting a supplier
A complete RFQ helps the supplier respond with a more useful quotation. Include:
- Target country or sales market
- Vehicle model or fitment list
- Required blade sizes and positions
- Product type: flat, hybrid, multifunction or another requirement
- Estimated order volume and expected repeat-order plan
- Packaging format and private-label requirements
- Sample requirements and approval timeline
- Target delivery window and preferred contact channel
9. A practical supplier-selection checklist
Suggested alt text: WEILONG conventional wiper blades with retail packaging
Before selecting an OEM/ODM wiper blade supplier, ask these questions:
- Can the supplier cover the vehicle models and sizes in your target market?
- Can the supplier provide a clear material and construction specification?
- Can the supplier explain the applicable quality checks for the selected model?
- Can the supplier support sample approval and small-batch trial orders?
- Can the supplier provide branded packaging or other private-label support?
- Can the supplier confirm the production flow, lead time and inspection checkpoints?
- Can the supplier provide an RFQ response based on your actual fitment and volume data?
Conclusion: choose a supplier that can support the whole program
The right wiper blade supplier should support more than a single shipment. Fitment coverage, materials, testing, packaging, sample approval, production flow and lead time all affect the buyer’s ability to build a stable aftermarket program. By preparing complete fitment and packaging information, importers can compare suppliers more accurately and reduce avoidable changes after production begins.
Send us your target vehicle models, blade sizes, packaging requirements and estimated order volume. WEILONG can discuss OEM/ODM options, sample confirmation and a quotation for your market.
Suggested alt text: WEILONG flat wiper blades with branded packaging
