SMI12C129 Starter – Compatible with CADILLAC CTS, SRX & STS Models SMT0331 M0T35874 410-48140

Product Overview

LSDF SMI12C129 – 12V 1.4KW 12T CW (Clockwise) Starter, PMGR-686-NEW Structure — A high‑quality aftermarket compatible replacement Starter, engineered for CADILLAC CTS (2.8L/3.6L, 2006‑07), SRX (3.6L, 2007), and STS (3.6L, 2007) vehicles. This product delivers reliable starting power and is manufactured to meet industry‑standard specifications for fit and function. It serves as an aftermarket compatible replacement for numerous OEM part numbers, making it an ideal choice for maintenance and repair.

Product Model

Cross‑Reference Codes (For Compatibility Comparison)

All third‑party brand names and part numbers are for cross‑reference purposes only and do not imply affiliation or endorsement. LSDF is our own brand; all other manufacturer names and numbers are the property of their respective owners.

Design Features & Performance Advantages

• PMGR-686-NEW Compact Design: Utilizes a lightweight 1.4KW motor with 12T drive gear and CW (Clockwise) rotation, designed to meet the starting demands of CADILLAC 2.8L and 3.6L V6 engines. The precision‑cut gear teeth ensure reliable engagement and reduced wear.
• Precision Engineering for Aftermarket Compatible Replacement: Manufactured with exacting tolerances, this Starter is designed to match the mounting and electrical specifications of the corresponding original equipment–style components. It provides a straightforward, bolt‑on installation without modification — a hassle‑free solution for maintenance professionals and DIY users alike.
• Premium Materials for Extended Durability: The motor incorporates high‑purity copper windings and Class F insulation, offering excellent heat resistance and preventing failure under frequent start‑stop cycles. Durable graphite brushes and a corrosion‑resistant aluminum alloy housing ensure long service life, even in challenging conditions. A high‑quality one‑way clutch protects the Starter from flywheel back‑drive damage.
• Versatile Application Coverage: This Starter is intended for use on CADILLAC CTS, SRX, and STS models from 2006‑07, helping to reduce inventory complexity for workshops and retailers.

Quality & Application Information

Our Starters undergo rigorous factory testing, including no‑load performance, load torque, locked‑rotor, and dielectric strength tests, to ensure consistent quality and reliability. We comply with international standards for aftermarket automotive components.

Application Scenarios: This Starter is an ideal compatible replacement for CADILLAC CTS 2.8L/3.6L (2006‑07), SRX 3.6L (2007), and STS 3.6L (2007). It is commonly used in repair shops, dealerships, and for DIY maintenance.