Replacement RN31860002 CVT Transmission Oil Pan - Nissan Maxima, Quest, Altima 3.5L

The Replacement RN31860002 is an aftermarket CVT transmission oil pan designed as a direct-fit replacement for select Nissan vehicles equipped with the 3.5L engine. This pan replaces OEM part number 31390-29X0B (also referenced as 31305-29X0A and 31390-29X0A) and is engineered to restore proper transmission fluid containment and thermal management.

The transmission oil pan plays a critical role in your CVT's operation by serving as the fluid reservoir, maintaining hydraulic pressure, and helping dissipate heat generated during normal driving. Over time, road debris impact or corrosion can cause denting or leaks, making timely replacement essential to prevent fluid starvation and costly transmission damage.

Key Features:

• Direct OEM-replacement fit for select Nissan CVT-equipped models
• Replaces OEM part number 31390-29X0B (supersedes 31305-29X0A, 31390-29X0A, 38322-29X0A)
• Designed for Continuously Variable Transmission (CVT) applications
• Restores proper fluid level, hydraulic pressure, and transmission cooling
• Addresses issues such as fluid leakage, low fluid level, and overheating

OEM Cross-Reference: 31390-29X0B, 31305-29X0A, 31390-29X0A, 38322-29X0A, 265-912

Note: A new transmission pan gasket is recommended any time the pan is removed or replaced. Drain plug inclusion may vary — verify before ordering.