Custom Furnace Wire Harness Assembly for HVAC OEMs

Midwest Molding, Inc. provides custom wire harness assembly for HVAC OEMs developing furnace and control-system components. Integrate wiring, molded parts, and multi-component assemblies through one experienced manufacturing partner, with project engineering support, cradle-to-grave management, and quality systems designed for demanding production requirements.

Technician assembling a custom furnace wire harness beside molded HVAC components

Our Wire Harness Assembly Services

Integrated wire harness and molded assembly capabilities support custom furnace components for HVAC OEM production programs.

Wire Harness Assembly

Build custom wire harnesses as part of integrated manufacturing programs for HVAC OEMs, with support from manufacturing and project engineers throughout development and production.

Multi-Component Assembly

Combine injection molded parts with additional components into complete assemblies, supported by error proofing, redesign optimization, and cradle-to-grave project management.

Pre-Mold & Overmolding

Encapsulate pre-existing parts, substrates, or inserts in plastic to create durable multi-component assemblies that integrate wiring and molded elements for demanding applications.

Custom Assembly Support

Integrated Harness Solutions for HVAC OEMs

Midwest Molding, Inc. helps HVAC OEMs coordinate wire harness assembly with molded and overmolded components through one manufacturing provider. Its engineering and project management teams support complex assemblies from tooling through production, helping simplify supplier coordination while maintaining attention to functionality, quality, delivery, and cost performance. Custom programs can be developed around furnace wiring and related control-system requirements.

Custom HVAC furnace wire harness integrated with molded electrical components
The Midwest Molding Difference

Why Choose Midwest Molding, Inc.?

Partner with a specialized manufacturer experienced in complex molded components and integrated assemblies.

Integrated Capabilities

Access molding, assembly, and welding capabilities through one manufacturing provider for streamlined program coordination.

Engineering Support

Dedicated manufacturing and project engineers support complex assemblies from tooling through production and process optimization.

Quality Systems

Certified quality and environmental management systems support demanding production requirements and consistent manufacturing control.

Industry Experience

An experienced management team brings more than 35 years of manufacturing industry experience to customer programs.

Meet The Manufacturing Team

Experienced professionals support complex molding and assembly programs.

Midwest Molding, Inc. is a specialized plastic injection molding and assembly manufacturer supporting demanding manufacturing and automotive applications. Its experienced management team brings more than 35 years of manufacturing industry experience across the industries it serves. The company’s capabilities span injection molding, wire harness assembly, multi-component assembly, and welding, giving HVAC OEMs access to coordinated manufacturing support for complex furnace components. From its Bartlett, Illinois headquarters, Midwest Molding focuses on precision plastic molding and assembly for demanding manufacturing needs, with project engineering and cradle-to-grave support helping customers move from tooling and development into production.

ExperienceMore than 35 years of industry experience
CapabilitiesMolding, assembly, and welding support
RecognitionDelphi supplier excellence award recipient

Frequently Asked Questions

What is custom furnace wire harness assembly?

Custom furnace wire harness assembly involves producing configured wiring assemblies for furnace and HVAC control applications. The harness may coordinate wires, connectors, molded components, and other parts into a ready-to-integrate assembly. Midwest Molding, Inc. supports these programs alongside injection molding, overmolding, and multi-component assembly capabilities for OEMs seeking coordinated manufacturing support.

Can Midwest Molding support HVAC OEM production programs?

Can wire harnesses be combined with molded components?

Does Midwest Molding provide engineering support?

Can Midwest Molding manage tooling for a harness assembly program?

What industries does Midwest Molding serve?

What quality certifications does Midwest Molding have?

How can an HVAC OEM request information about a harness assembly project?

Have Questions About Your Harness Program?

Talk with Midwest Molding about your HVAC OEM assembly requirements.

Certified & Recognized

Awards and Recognition

IATF 16949 certification mark

IATF 16949

Named company certification for quality management.

ISO 14001:2015 certification mark

ISO 14001:2015

Named company certification for environmental management.

ISO 9001:2008 certification mark

ISO 9001:2008

Named company certification for quality management.

ISO/TS 16949:2009 certification mark

ISO/TS 16949:2009

Named company certification for quality management.

Minority Business Enterprise certification mark

Minority Business Enterprise certification

Named company certification listed in credentials.

Plan Your Custom Harness Assembly

Share your HVAC OEM requirements and connect with Midwest Molding’s manufacturing team.

Contact Us Today

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