OEM Nissan Frontier Front CV Axle Shaft Assembly (4WD) — Part #391009BT0A

Part Number: 391009BT0A / 39100-9BT0A
Condition: Genuine OEM Factory Replacement
Drive Type: 4WD / 4×4 Front Drivetrain
Engine Compatibility: 3.8L Direct-Injection V6

Detailed Product Overview

Restore smooth torque delivery and quiet front differential operation to your truck with this genuine OEM Nissan Front CV Axle Shaft Assembly (Part # 391009BT0A). Designed for 2020–2023 Nissan Frontier 4WD models (including the late D40 3.8L engine trans-year and current D41 body styles), this factory CV axle connects the front differential directly to the wheel hub assembly.

Key Features & Benefits

Factory-Spec Construction: Built with heavy-duty heat-treated steel shafts and precision-ground CV joints to handle high-torque loads without flexing or binding.

Pre-Greased & Sealed: Comes fully assembled with high-temperature synthetic grease and durable elastomeric boots resistant to cracking, heat, and trail debris.

Direct Drop-In Fitment: Precision splines and mounting surface line up seamlessly with the front differential carrier seal and wheel hub bearing.
Vibration-Free Performance: Factory-balanced shaft eliminates high-speed front-end driveline vibrations common with lower-tier aftermarket axles.

If your truck exhibits popping or clicking sounds while turning in 4×4, torn neoprene CV boots, grease spray near the front suspension, or drivetrain vibration under acceleration, replacing worn axles with genuine OEM components ensures maximum strength for daily driving, towing, and off-road trail use.