What is the warranty period?

The standard warranty period is 12 months.

What is the minimum order quantity?

The minimum order quantity is 1 piece.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Truck Trailer Part Traction Seat Trailer Fifth Wheel 2" / 3.5"

Name: Truck Trailer Part Traction Seat Trailer Fifth Wheel 2" / 3.5"
Brand: Shandong Weierqi Vehicle Parts Co.,Ltd
SKU: 2281127755

Shandong, ChinaShandong Weierqi Vehicle Parts Co.,Ltd

US$165.00

50-199 Pieces

US$160.00

200+ Pieces

Sample price:US$180.00/piece.Request sample

Product profile

Customization

Available

Diameter

90mm

Loading Weight

50ton

Model NO.

fifth wheel

Material

Q355

Color

Black

King Pin Size

90mm

Warranty

12 Month

Mounting Hole

Six Hole

Type

Single Track

Transport Package

Pallet

Specification

90#

Trademark

WEQ

Origin

China

Production Capacity

500 Sets/Month

Key features

High-Strength Steel Construction: Forged/cast Q345B/16Mn steel ensures stable load capacity and long service life.

Dual Kingpin Compatibility: Supports 50mm (2 inch) and 90mm (3.5 inch) kingpins for FUWA, JOST, BPW trailers.

Safe Locking Mechanism: Double safety interlock with automatic locking and manual release for reliable operation.

Flexible Type Options: Available in fixed, sliding, single-pendulum, and double-pendulum types.

Wear-Resistant Design: Large contact plate with grease grooves for low friction and easy maintenance.

Wide Load Capacity: Handles 28T to 50T loads, suitable for 20T-50T semi-trailers and heavy trucks.

Customizable Surface: Surface treatment includes black, gray, red painting or powder coating options.

OEM/ODM Service: Full customization available from samples, designs, or minor adjustments.

Company profile

Importers and ExportersPatents AwardedQuality AssuranceProduct Certification

Shandong Weierqi Vehicle Parts Co.,Ltd

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.16h

AI-Powered supplier vetting

SummaryWelch is a professional towing-device and trailer-accessory supplier with casting, machining, manufacturing, sales, and export capabilities. It offers a broad product range, including traction devices, pintle hooks, turntables, king pins, fifth wheels, landing gear, trailer couplings, and drawbar eyes. The supplier reports ISO9001:2015 certification, documented warehouse and finished-product inspection procedures, three quality-control staff, two test-equipment units, and two R&D engineers. It provides 3D software design and multiple forms of customization, supported by CNC, drilling, boring, induction-heating, milling, painting, and shot-blasting facilities. R&D engineers provide technical support during production and after-sales service. The supplier reports domestic mainstream OEM and upfitter supply and exports to several regions, but no Fortune 500 cooperation. Financial information is present only as year labels, so financial credibility cannot be assessed.

Supplier typeThe supplier identifies itself as a professional technical supplier and conducts casting, manufacturing, sales, and export of towing devices and trailer accessories. Its listed product portfolio covers major towing-system components, indicating a specialized manufacturer rather than a general trading supplier.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate. However, product compliance certification is recorded only as “Others,” without naming a specific product standard or certificate.

After-Sales capabilityThe two technology engineers are responsible for technical support during production and after-sales service, and the supplier provides technical support tied to customer requirements. This explicitly supports after-sales technical assistance, although the breadth and response performance of the service are not stated.

R&D capabilityWelch reports multiple utility model patents, national automotive standard-drafting membership, two R&D engineers, and new-product-development responsibilities. It also provides 3D software design services, but reports no available SDK; the evidence still supports product-development and technical innovation capability.

Production capacityThe supplier operates or reports access to casting and a range of production facilities, including CNC lathes, machining centers, vertical lathes, drilling, boring, induction heating, gantry milling, painting, and shot blasting. Written warehouse and finished-product inspection procedures are reportedly followed, with three quality-control staff and two test-equipment units.

Customization capabilityWelch explicitly supports OEM/ODM customization and machining according to drawings. It offers customization from samples, designs, full customization, minor customization, and flexible customization, together with 3D software design services.

Client casesThe supplier states that its products supply mainstream domestic OEMs and upfitters and are exported to Africa, Southeast Asia, South America, the Middle East, and other global markets. It reports no cooperation with Fortune 500 companies, so the customer evidence demonstrates market reach but not top-tier multinational customer reference strength.

Product Q&A

Q:What kingpin sizes are supported?

The fifth wheel supports two standard sizes: 50mm (2 inch) and 90mm (3.5 inch), compatible with FUWA, JOST, and BPW type trailers.

Q:What is the maximum load capacity?

The load capacity ranges from 28T to 50T depending on the model, suitable for 20T-50T semi-trailers, low-bed trailers, and heavy-duty truck tractors.

Q:What types of fifth wheels are available?

We offer fixed type, sliding (adjustable) type, single-pendulum, and double-pendulum (oscillating) types to meet different application needs.

Q:Is customization available for this product?

Yes, we provide OEM and ODM services. Customization options include color (black, gray, red), kingpin size, mounting holes, and surface treatment via painting or powder coating.

Q:What material is used for construction?

The product is made from high-strength steel Q345B or 16Mn, which is forged or cast for optimized welded design and stable load capacity.