Tutor Auto Starter Motor 17986N for GM 3.0L/3.6L Vehicles — 12V 1.4 kW, 12-tooth CW

The Tutor Auto 17986N is a direct-fit 12V starter motor engineered to restore reliable engine cranking for many 3.0L and 3.6L GM-family vehicles.

This replacement starter motor is built from new, corrosion-resistant components and designed to meet or exceed OEM fit and function for a wide range of Buick, Chevrolet, GMC, Cadillac, Saturn and compatible models. It offers a compact, waterproof aluminum housing, clockwise rotation, 12 teeth pinion and 1.4 kW power rating to deliver consistent starts in everyday driving and adverse weather conditions.

Will this starter fit my vehicle?

Compatibility depends on engine size, model year and the original part number. Tutor Auto lists this unit as compatible with many 3.0L and 3.6L applications across Buick, Chevy, GMC, Cadillac and several other marques, but confirming the original reference number or vehicle details guarantees correct fitment.

• Fits many Buick Enclave, LaCrosse, Allure and Rendezvous models with 3.0L/3.6L engines.
• Compatible with Chevy Traverse, Impala, Equinox and select Colorado/Tracker models within listed years.
• Also fits GMC Acadia, Terrain, Canyon and select Cadillac SRX, XTS, STS applications.
• Cross-references include OEM numbers like 12588493, 12601721 and aftermarket codes such as 17986N.

How does the Tutor Auto starter perform in wet or corrosive conditions?

The starter uses an aluminum alloy base edge and corrosion-resistant finishes to improve moisture and debris resistance, helping protect internal components from road grime, salt and splashing water. While no starter is completely impervious, this design reduces the chance of premature failure in damp climates.

• Aluminum alloy base edge for improved waterproofing and debris protection.
• Rust-free construction and corrosion-resistant coatings on exposed parts.
• Designed to resist impact from stones and road debris that commonly strike undercarriage components.

What are the key electrical and mechanical specifications?

This replacement is a 12V, 1.4 kW starter with a clockwise rotation and a 12-tooth pinion. Those specifics determine engagement speed, torque characteristics and mechanical compatibility with the flywheel or flexplate on compatible GM V6 engines.

• Voltage: 12V, Power rating: 1.4 kW for consistent cranking power.
• Pinion: 12 teeth, Rotation: Clockwise (CW) to match OEM setup.
• Supplied as a single complete starter motor for direct replacement.

How easy is installation and what support comes with the purchase?

The unit is designed for bolt-on replacement with no vehicle modifications when the correct fitment is selected. Tutor Auto recommends checking the replacement reference numbers before purchase and includes a 12-month warranty for added buyer protection.

• Direct-fit design intended for simple installation using factory mounting points.
• Check cross-reference numbers like 12598756 or 31100-78J00 for compatibility assurance.
• Includes 12-month warranty and seller support for installation questions or defects.

Who is this for: drivers, mechanics and DIY enthusiasts who need an affordable, OEM-compatible replacement starter for GM 3.0L and 3.6L V6 vehicles. Choose the Tutor Auto 17986N when your vehicle shows symptoms of slow cranking, intermittent starts, or if diagnostics point to a failed starter. Always verify your vehicle’s original part number and model year to confirm fitment before ordering.