2016-2018 Cadillac CT6 GM OEM Starter Motor 12652438

Product Overview

This OEM-grade Starter Motor is specifically engineered for the Cadillac CT6 (2016–2018). It is a direct-fit replacement for GM part number 12652438, designed to meet the high-torque requirements of Cadillac's premium engine platforms while ensuring seamless integration with the vehicle's electrical system.

OE Part Numbers: Direct replacement for 12652438, 12684203, and 12693532.

Vehicle Application: Precision-matched for the Cadillac CT6 (2016, 2017, 2018) models, typically those equipped with the 3.0L Twin Turbo or 3.6L V6 engines.

Core Technology: Features a 100% high-purity Copper Motor for maximum electrical conductivity and superior thermal resilience during high-frequency starting cycles.

Technical Specifications

Electrical Power: Operates on a standard 12V system, delivering high power output for rapid engine ignition.

Build Quality: Robust metal construction weighing 11.14 lbs, indicating a heavy-duty internal build compared to standard economy starters.

Physical Dimensions: Unit measures 11.25 x 8.25 x 5.25 inches, ensuring a precise "drop-in" installation that matches factory mounting points.

Key Performance Features

High Efficiency: Engineered for low energy consumption, which helps preserve battery life and improves overall fuel efficiency by reducing the electrical load during the start cycle.

Acoustic Engineering: Utilizes precision-machined gears and high-quality bearings to achieve "Mute-level" low noise during engagement, maintaining the quiet operation expected of a luxury vehicle.

Certified Manufacturing: Produced in facilities holding IATF 16949, ISO 9001, and ISO 14001 certifications, ensuring every unit meets global Tier-1 automotive quality standards.

OE Numbers

Starter Specifications

Starter Detailed Applications

Wholesale & Manufacturing Advantages

Massive Production Scale: With an annual capacity of 600,000 units, we provide a highly stable and scalable supply chain for international distributors.

Full Customization: We support extensive OEM/ODM services, including specific material upgrades, private-label branding, and customized packaging (Brand, Neutral, or Private Label).

Service Commitment: Each unit is backed by a 12-month warranty with flexible lead times of 7–60 days and a Minimum Order Quantity (MOQ) of 100 units.

For high-volume procurement, the Cadillac CT6 Starter Motor offers an ideal balance of OE-spec performance and manufacturing flexibility.

Elecdura Starter Motor: 100% New, OEM-Grade Starters for Global Wholesalers & Distributors

Cadillac Starter Certification: Global Compliance and Local Market Approval Support

Elecdura Starter are manufactured in full compliance with leading international standards, enabling seamless market entry worldwide. We hold key certifications, including CE for product safety in the European market, ISO 14001 for environmental management, and ISO 45001 for occupational health and safety. These demonstrate our commitment to reliable performance, sustainable production, and high workplace standards.If your target market requires specific local approvals, our dedicated team will proactively coordinate the certification process to obtain all necessary documentation, ensuring your supply chain remains efficient and fully compliant. We are here to support your regulatory needs.

ISO14001

ISO45001

CE

Cadillac Starters: Precision manufacturing with integrated testing for reliability

At Elecdura, every starter is manufactured to exacting standards through our fully integrated production process. From rigorously inspected raw materials to precision machining and automated assembly, each step is optimized for consistency and performance. Every unit undergoes dynamic testing to ensure unmatched reliability—meeting the demands of both OEM specifications and aftermarket requirements.

Starter Raw Materials Preparation

Starter Component Processing

Starter Parts Fabrication

Starter Parts Assembly Process

Starter Automated Production Line

Starter Quality Control Check

Starter Final Product Assembly

Starter Finished Goods Storage

Cadillac Starter Quality Inspection: 30 Tests & 100% Pre-Shipment Check

Development Experiment

Incoming Inspection

Field Inspection

Outgoing Inspection

Establish strict inspection system and process for each process from development, experiment and shipment of finished product.

The development, production and test of each starter must pass 30 kinds of test.

Before shipment, 100% check of the appearance, size and nut to prevent any defects from leaking out

Starter Supplier Strong Export Capability and Stable Supply

Elecdura ensures large-scale, stable supply of alternators to global markets. Each pallet and carton is meticulously packaged to export standards for secure transport. Leveraging years of export expertise and consistent demand from long-term clients, we provide reliable delivery assurance and supply chain continuity for bulk orders.

Cadillac Starter supplier: Partner for market success with integrated support

Elecdura collaborates with leading distributors and brands worldwide — helping our partners dominate their local aftermarket. Through professional sourcing, customized product development, and close market research, we've supported clients in becoming the Top 1 aftermarket suppliers in South America(in some categories). Our integrated marketing and supply capabilities make us more than a factory — we're your strategic growth partner.

Starter Motor Samples

OEM Starter Models Showroom

Detailed Shot of Starter Motor

Starter Motor Units Before Packaging

Elecdura with international buyer in Brazil Exhibition

Elecdura assisting South American client in aftermarket development

Successful client collaboration showcased at trade fair booth

Elecdura team and partners at international auto parts exhibition

FAQ-2016-2018 Cadillac CT6 GM OEM Starter Motor

Q1: Is this OEM starter (part number 12652438) compatible with all trim levels of the Cadillac CT6 from 2016 to 2018?

A: Not necessarily. The CT6 was offered with multiple powertrains during this period, including the 2.0T L4 (LTG), 3.6L V6 (LGX), 3.0L Twin-Turbo V6 (LGW), and a plug-in hybrid variant. Part number 12652438 is primarily associated with models equipped with the 3.6L V6 (LGX) engine. It is NOT compatible with the 2.0T four-cylinder or certain high-performance/hybrid versions. Verification using your vehicle's VIN is essential to ensure a match for your specific engine.

Q2: What exactly does "GM OEM Starter Motor" mean? Is it the same as a Genuine GM (Cadillac) part?

A: "GM OEM" here refers to a brand-new component manufactured by General Motors' original equipment supplier. It is identical in materials, specifications, and performance to the Genuine GM Part you would purchase from a dealership. The key difference is that it typically does not come in the official GM packaging or with the factory part label, offering the same quality and fit at a more competitive price. If you require a "Genuine" part with original packaging, please specify before ordering.

Q3: My CT6 has the automatic stop-start feature. Is this starter (12652438) designed for that system?

A: Yes. Part number 12652438 is a heavy-duty starter specifically engineered for GM V6 engines (like the 3.6L LGX) equipped with the automatic stop-start system. It features a reinforced motor and gearing to withstand frequent start-stop cycles. If your vehicle has this feature, it is crucial to use this OEM-specified part and not a non-start-stop version.

Q4: Does replacing this starter require any programming or resetting of the vehicle's electronic systems?

A: Replacing the starter motor itself does not require specific programming. It is a purely mechanical and electrical component replacement. However, as part of standard service procedure after disconnecting the vehicle battery, you may need to use a diagnostic tool to clear any historical fault codes that may appear and perform simple reset/relearn procedures for some comfort features (e.g., power windows, sunroof, memory seats). This is not programming the starter, but rather restoring the vehicle's electronic systems to normal operation.

Q5: Does the product package include new mounting bolts? Are there any special precautions during installation?

A: The standard OEM component package typically includes only the starter motor assembly itself. According to GM service procedures, the starter mounting bolts are often considered "torque-to-yield" and are recommended for one-time use to ensure proper clamping force and reliability. Therefore, it is strongly advised to purchase new mounting bolts separately according to the original specifications. During installation, ensure the battery is disconnected and follow the standard torque tightening specifications.