Automotive Injection Molding

Automotive-Grade Plastic Injection Molding

PPAP-Capable. SPC-Controlled. Engineered for Consistency.

Texas Injection Molding delivers precision plastic injection molded components for automotive OEMs and Tier 1 and Tier 2 suppliers — interior trim, underhood structural parts, sensor housings, fluid system components, and EV hardware manufactured to automotive quality standards.

Automotive Injection Molding Solutions

Automotive injection molding demands a level of process discipline and quality documentation that separates capable molders from commodity suppliers. Dimensional consistency across millions of cycles, material certifications, PPAP documentation, SPC process control, and on-time delivery to JIT production schedules are not differentiators in automotive supply — they are entry requirements.

Texas Injection Molding supplies plastic injection molded components to automotive OEMs and Tier 1 suppliers with the quality systems and process discipline those programs demand.

PPAP documentation and SPC for automotive programs

Core Automotive Injection Molding Capabilities

Plastic component manufacturing for interior, underhood, electrical, exterior, and EV applications

Interior trim — A/B/C pillar covers, door inserts, instrument panel bezels, center console components

Underhood structural parts — battery brackets, sensor mounts, fluid reservoir caps, air intake components

Electrical and connector housings — sealed connector bodies, fuse box components, relay housings

Fluid system components — coolant reservoir caps, washer nozzle bodies, EV thermal management housing parts

Exterior components — mirror housings, wheel arch liners, grille inserts, bumper clip retainers

EV-specific parts — battery pack covers, charging port bezels, high-voltage connector housings

Automotive Quality Systems

Automotive OEM and Tier 1 quality requirements are non-negotiable. Our production systems are aligned with the documentation, traceability, and process control standards automotive programs demand.

PPAP Part Approval Process documentation — dimensional results, material certs, process capability studies

Statistical Process Control — critical dimensions monitored in-process with documented Cpk targets

Scientific injection molding — validated, documented processes not trial-and-error setups

IATF 16949-aligned quality management system awareness

PPAP Documentation

We produce Part Approval Process documentation including dimensional reports, material certifications, process capability studies (Cpk), control plans, and sample submissions for automotive supplier qualification.

Engineered for Automotive Consistency

All automotive programs are developed using scientific injection molding methodology — systematic process characterization, documented process windows, and validated parameters that reproduce the same part on every shift, every run.

Why Automotive OEMs Choose TXIM

A trusted manufacturing partner for OEMs seeking precision, reliability, and US-based production.

Experienced in Automotive Supply

Over two decades supplying plastic injection molded components to automotive OEMs and Tier 1 suppliers — we understand what automotive programs require and how to deliver it.

PPAP-Capable Quality Systems

We produce the full PPAP submission package — dimensional results, material certifications, process capability, and control plans — to support your supplier qualification process.

In-House Tooling

For energy programs with government, defense-adjacent, or export control requirements, our ITAR compliance and documentation capability provide the supply chain records those programs require.

SPC Process Control

Our press fleet covers components from small valve fittings to large equipment enclosure panels — the full energy component size range, in a single facility.

The Automotive Standard, Delivered from Houston

Automotive injection molding is not about producing good parts when conditions are perfect — it is about producing consistent parts across shifts, operators, and production runs for years. Texas Injection Molding delivers that consistency through scientifically developed, documented, and controlled injection molding processes.

Start Your Injection Molding Project

Whether you’re in energy, defense, medical, or consumer products — we have the expertise, equipment, and certifications to bring your injection molding project to life.