USA Standard NV4500 5th Gear 5.61 Ratio Part

Description

Product Overview

The USA Standard Gear NV4500 5th gear mainshaft is a precision‑engineered component designed for the Chrysler manual transmission series. With an outside diameter of 2.381 inches and a width of 0.453 inches, this machined part features a 22‑tooth gear that provides a 5.61:1 ratio, delivering reliable torque transfer and smooth shifting. Constructed from high‑strength alloy, it meets OEM specifications and carries the manufacturer part number ZMNV18164. Its compact 3 × 3 × 3 inch dimensions and lightweight 3.5‑pound build simplify handling and installation.

Usage

Designed for professional mechanics and DIY enthusiasts, this gear is ideal for rebuilding or upgrading the NV4500 transmission in heavy‑duty trucks and vans. It performs optimally in demanding environments such as off‑road work, towing, and commercial fleet applications where consistent power delivery is critical. The part’s exact fit ensures seamless integration with existing transmission housings, reducing downtime and enhancing vehicle reliability.

Why Choose Us

USA Standard Gear is renowned for rigorous quality control and American manufacturing standards. Each gear undergoes CNC machining and thorough inspection to guarantee dimensional accuracy and surface finish. Our commitment to durability means the part resists wear, heat, and corrosion, extending the service life of your transmission. Backed by a responsive customer support team, we provide technical assistance and a straightforward return policy.

Key Features

• Exact 22‑tooth design delivering a 5.61:1 gear ratio for optimal torque conversion
• Machined from high‑strength alloy for superior durability and wear resistance
• Precision dimensions (2.381″ OD, 0.453″ width) ensure perfect fit in NV4500 assemblies
• Lightweight 3.5 lb construction simplifies handling and installation
• OEM‑compatible part number ZMNV18164, meeting all manufacturer specifications

FAQ

Is this gear compatible with all NV4500 transmissions?

It is specifically designed for the NV4500 5th gear application in Chrysler trucks and matches the ZMNV18164 OEM part number.

What tools are needed for installation?

Standard transmission tools, a gear puller, and a torque wrench are sufficient. Detailed installation instructions are included with the part.

Can this gear be used for performance upgrades?

Yes, the precise 5.61:1 ratio and high‑quality material make it suitable for both rebuilds and performance enhancements.

What is the warranty on this product?

USA Standard Gear offers a one‑year limited warranty covering manufacturing defects.

How does the machined finish affect performance?

The CNC‑machined surface provides consistent tooth contact, reducing noise and improving shift smoothness.