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Comprehensive coverage included
Certified technicians available
State Auto Parts is a trusted nationwide supplier of tested used engines, transmissions, and powertrain components for domestic, Japanese, and European vehicles. Whether you need a low-mileage replacement motor to get your daily commuter back on the road or a heavy-duty transmission for a commercial fleet truck, we provide affordable OEM components backed by warranty protection and fast freight delivery.
Every used engine and transmission in our nationwide inventory undergoes a multi-point mechanical inspection prior to shipment. Our technicians verify mechanical soundness through:
Modern vehicles often feature multiple engine displacement variants, transmission gear counts, and ECU calibration differences within the same model year. Our drivetrain specialists utilize factory OEM interchange catalogs to match your vehicle’s exact 17-digit Vehicle Identification Number (VIN).
To ensure optimal longevity from your replacement powertrain, certified mechanics recommend installing new wear-and-tear items during installation. For engines, replace the water pump, thermostat, timing components, valve cover gaskets, and rear main seal. For transmissions, always flush the external transmission fluid cooler lines, install a new transmission filter, and ensure proper torque converter seating prior to bolting down the bellhousing.
