To avoid costly mistakes, you must ensure this part fits your car. The Nissan B20db-54 is exclusively designed for vehicles equipped with specific front brake calipers. Based on Nissan’s parts catalog, the B20db-54 is a direct replacement for the following models:

Important note: The B20db-54 is not compatible with sport-brake packages (e.g., Akebono big brake kits on the G37 Sport) or older models like the Nissan Sentra or 350Z. Always double-check your trim level and rotor diameter before purchasing.

Based on comparable automotive fastener standards (ISO 898-1, JIS B 1180), B20DB-54 likely mandates:

The -54 suffix could also specify reduced dispersion in coefficient of friction (0.12–0.18) for torque-angle controlled assembly.

In the vast ecosystem of automotive parts, certain codes become gospel for mechanics, restorers, and parts department specialists. One such code that often surfaces in technical manuals, online forums, and salvage yard databases is Nissan B20db-54.

At first glance, this alphanumeric string looks like a secret passcode. But for owners of specific Nissan and Infiniti models, particularly those from the late 1990s and early 2000s, the B20db-54 is a critical specification that can mean the difference between a perfect brake job and a dangerous failure.

In this comprehensive guide, we will dissect exactly what the Nissan B20db-54 is, where it is found, which vehicles use it, and why ignoring it could cost you hundreds of dollars in unnecessary repairs.

If you’ve recently encountered the alphanumeric code Nissan B20db-54 and are trying to decipher its meaning, you’re not alone. In the world of automotive parts, OEM (Original Equipment Manufacturer) numbers can be cryptic. However, for mechanics, restorers, and performance enthusiasts, knowing exactly what a part number like Nissan B20db-54 refers to is crucial for compatibility, safety, and performance.

This long-form guide will break down everything you need to know about the Nissan B20db-54—what it is, which vehicles it fits, its technical specifications, common failure points, and where to buy it.

Symptom: Steering wheel shakes when braking at highway speeds.
Cause: Warped rotors, not the pads themselves.
Fix: Replace rotors (or have them resurfaced) when installing new B20db-54 pads. Nissan recommends rotor thickness variation below 0.02 mm.

If you own a Nissan Navara, a Nissan NV350 Urvan, or certain models of the Nissan Terra sold in Asian markets, you may have noticed a specific code stamped on your registration or engine block: B20DB-54.

While many car owners know their engine is a "2.0-liter Diesel," the specific engine code tells a much deeper story. Today, we are taking a closer look at the B20DB-54—a workhorse engine that has powered some of Nissan’s most reliable commercial and passenger vehicles.

Here’s why you should care. The B20DB-54 shares 98% of its internal hardware with the SR20DE.