Control Arm FAQ: Specifications, Ordering and Support Questions

A control arm (also called an A-arm or wishbone) is one of the most important components in a vehicle's suspension system. Whether you are sourcing a single sample, placing a wholesale order, or evaluating a new supplier, the questions below address what buyers most commonly ask before and after placing an order with Hebei Lingke Vientiane supply chain Co., LTD.

For a broad selection of suspension parts, see the Premium Control Arm product page.

What does a control arm do in a vehicle's suspension system?

The control arm connects the wheel hub and steering knuckle to the vehicle's chassis or frame. When properly installed, it allows the wheels to move up and down independently while maintaining proper alignment. It also absorbs road shocks and vibrations, helps distribute the vehicle's weight evenly across the suspension, reduces stress on other components, limits excessive tire wear, and keeps the tire in optimal contact with the road — improving handling, steering response, and ride comfort.

What types of control arm are available?

The product range covers front upper and front lower control arms, rear (back) control arms, and full suspension control arm kits. Positions available include right-hand (RH), left-hand (LH), front, and rear fitments, depending on the specific part number. Materials used include stamped steel, forged steel, cast iron, and aluminum. All sheet-metal arms are protected with an electrophoretic electrostatic coating that resists rust and impact.

Which vehicle makes and models are supported?

The product range includes fitments for Hyundai (e.g., i30, Santa Fe), Kia, Toyota (e.g., Crown, Camry), Ford, Jeep, Dodge, Chrysler, GMC, Buick, Hummer, Chevrolet, Nissan, Honda, Mitsubishi, and Suzuki, among others. Each product has its specific OE number — for example, OE 54501-2H000 for Hyundai i30, OE 48640-0N010 / 43620-0N010 for Toyota Crown, OE 48069-06230 / 48068-06230 for Toyota Camry, OE 54501-26000 for Hyundai Santa Fe, and OE 4M51-3A424-AD / 4M51-3A423-AD for Ford. Always confirm fitment by quoting the OE number when enquiring.

What is the minimum order quantity (MOQ)?

MOQ varies by product and stock status:

• In-stock items: some products have no set MOQ; others state a minimum of 50 pcs or 100 pcs per item.
• Made-to-order / manufactured items: typically 100 pcs, subject to production capacity.
• Sample orders: small or single-piece sample orders are accepted across the range.

Confirm the applicable MOQ for a specific part number at the time of enquiry, as availability and production schedules affect the threshold.

How long does delivery take?

Lead times depend on stock status and order size:

Delivery times stated are indicative and subject to order quantity and production scheduling. Shipments can be arranged from Tianjin Port or any other Chinese seaport.

What are the payment terms?

The standard payment terms are T/T 30% deposit with the 70% balance paid before shipment. The supplier will share product and packaging photos before the buyer pays the balance. Additional payment methods accepted include L/C, credit card, and cash, depending on the product and agreement.

Can I get a custom-branded or custom-packaged order?

Yes. Packaging can be customized with a buyer's own logo and branding. Standard neutral packaging (plastic bag + carton, or neutral white/brown box) is available as a default. Pallets are available on request. For OEM/ODM projects, the supplier can also produce according to buyer-supplied samples or technical drawings, including building molds and fixtures.

Are samples available, and do they cost anything?

Sample availability differs slightly by product line:

• Some products offer a free sample (buyer pays freight only).
• Others charge a sample fee that is refunded once an order is placed.

Confirm the sample policy for the specific part number when requesting.

What quality checks are performed before shipment?

Products undergo factory QA testing. Before shipment, the team takes photos or video of each product for final buyer confirmation. Each control arm is manufactured to OEM standard dimensions and specifications, and aluminum arms are rigorously tested to ensure no bushing problems occur.

Is there a product warranty?

The warranty period for control arms is 12 months or 50,000 km (whichever comes first). Confirm the warranty terms for the exact part number when ordering, as terms may vary by product.

What happens if there is a quality problem after delivery?

The supplier commits to responding to complaints within 24 hours and providing solutions, which may include compensation for losses and replacement of defective parts as soon as possible. Buyers should contact the supplier promptly upon receiving goods if any issue arises.

How can I find the right control arm part number?

The supplier maintains a catalog of over 20,000+ OEM part numbers. To find the correct part, provide the vehicle make, model, year, and position (front/rear, left/right), or quote the OE number directly from your existing part. The team will respond to enquiries within 12 hours.

Have a question not covered here? Contact Hebei Lingke Vientiane supply chain Co., LTD. directly with your vehicle details and OE number for a prompt, specific answer.