Custom Wire Harness Manufacturers

Midwest Molding, Inc. provides custom wire harness assembly supported by integrated molding, assembly, and engineering capabilities. From electrical components to ready-to-install assemblies, the team helps manufacturers address complex production requirements with cradle-to-grave project support. Its Bartlett, Illinois facility serves demanding automotive, transportation, electronics, appliance, and consumer goods applications across the United States.

Technician assembling custom wire harness components in a manufacturing facility

Our Wire Harness Services

Integrated wire harness, molding, and assembly capabilities for complex electrical and manufactured component requirements.

Wire Harness Assembly

Midwest Molding provides wire harness assembly for automotive, transportation, electronics, and consumer goods applications, supported by manufacturing engineers and cradle-to-grave project management.

Overmolded Assemblies

Pre-mold and overmolding capabilities combine plastic material with existing parts, substrates, or inserts to create integrated multi-component assemblies for demanding applications.

Multi-Component Assembly

Multi-component assembly combines injection molded parts with additional components into complete assemblies, with error proofing and redesign optimization supporting functionality and cost performance.

Connected Manufacturing

Integrated Harness Assembly Support

Custom wire harness assembly from Midwest Molding, Inc. is supported by molding, assembly, tooling, and project engineering capabilities under one manufacturing provider. This integrated approach can help simplify supplier coordination while supporting complex electrical assemblies for automotive, transportation, electronics, appliance, and consumer goods applications. Production is backed by a dedicated manufacturing facility in Bartlett, Illinois and documented quality management certifications.

Custom wire harness assembly with molded electrical components
Integrated Manufacturing

Why Choose Midwest Molding, Inc.?

A single manufacturing partner for harness assembly, molding, engineering, and quality support.

Integrated Capabilities

Access molding, assembly, and welding capabilities through one manufacturing provider for coordinated project support.

Engineering Support

Manufacturing and project engineers support complex designs, tooling, process optimization, and production ramp-up.

Quality Systems

Documented quality and environmental certifications support production for demanding automotive and manufacturing applications.

Industry Experience

An experienced management team supports long-term programs across automotive, electronics, transportation, and consumer goods.

Meet The Manufacturing Team

Experienced professionals support complex molding and assembly programs.

Midwest Molding, Inc. is a specialized plastic injection molding and assembly manufacturer headquartered at 1560 Hecht Drive in Bartlett, Illinois. The company’s experienced management team supports long-term growth across the manufacturing industries it serves, with capabilities spanning injection molding, assembly, welding, and wire harness services. Its work supports automotive, transportation, electronics, appliance, and consumer goods applications. Midwest Molding combines project engineering, tooling support, production capabilities, and quality systems to help customers manage complex molded components and integrated assemblies. The company’s manufacturing facility provides a centralized base for coordinated production support, while its management team brings an average of more than 35 years of manufacturing industry experience.

ExperienceManagement team averages more than 35 years
CapabilitiesMolding, assembly, and welding under one provider
HeadquartersBartlett, Illinois manufacturing facility

Frequently Asked Questions

What does a custom wire harness manufacturer do?

A custom wire harness manufacturer assembles wires, connectors, and related components into organized electrical assemblies designed for a specific application. Midwest Molding, Inc. provides wire harness assembly as part of broader molding and assembly capabilities, supporting automotive, transportation, electronics, and consumer goods customers with project engineering and cradle-to-grave manufacturing support.

What industries does Midwest Molding support?

Can wire harnesses be combined with molded components?

Does Midwest Molding provide engineering and tooling support?

Where is Midwest Molding located?

What quality certifications does Midwest Molding have?

Can Midwest Molding support prototype and production programs?

How can I request a custom wire harness project review?

Have More Harness Questions?

Talk with Midwest Molding about your electrical assembly requirements.

Certified & Recognized

Awards and Recognition

IATF 16949 certification recognition

IATF 16949

Automotive quality management certification listed by the company.

ISO 14001:2015 certification recognition

ISO 14001:2015

Environmental management certification listed by the company.

ISO 14001:2004 certification recognition

ISO 14001:2004

Environmental management certification listed by the company.

ISO 9001:2008 certification recognition

ISO 9001:2008

Quality management certification listed by the company.

Minority Business Enterprise certification recognition

Minority Business Enterprise certification

Minority Business Enterprise certification listed by the company.

Discuss Your Custom Wire Harness

Share your assembly requirements with Midwest Molding, Inc. to explore integrated manufacturing support.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 224.208.1110.