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2026 Guide: Rear Wheel Hub Bearing Replacement for Toyota RAV4 & Lexus NX300h AWD

Your rear wheel hub bearing does two jobs at once. It carries the wheel, and it holds the magnetic encoder ring that feeds wheel-speed data to the ABS, traction control, and stability control modules. On an AWD Toyota RAV4 (2006–2018) or Lexus NX300h (2015–2021), a worn bearing means noise, warning lights, and a possible inspection failure.

The fix covered here is the 2Pcs Wheel Hub Bearing Rear AWD kit: a matched pair of complete rear assemblies, one LH and one RH, ready to bolt on. Below you get the symptoms, the diagnostic codes, the torque numbers, and the fitment rules — everything you need before the wheels come off.

What Comes in the Kit

• Complete pair: both LH (driver side) and RH (passenger side) rear hub assemblies in one box — no separate purchases.
• Integrated magnetic encoder ABS sensor: a precision-magnetized encoder ring keeps the wheel-speed signal clean and helps prevent codes C0210 (Rear Speed Sensor RH Circuit) and C0215 (Rear Speed Sensor LH Circuit).
• Pre-installed wheel studs: 5-lug configuration, studs factory-pressed to OEM torque specifications, so you avoid cross-threading or galling during installation.
• AWD-specific fitment: hub flange offset and bearing preload calibrated for the RAV4 and NX300h rear drive unit's half-shaft geometry.
• Specified bearing steel: vacuum-degassed, high-carbon chromium bearing steel (equivalent to AISI 52100 / GCr15), surface hardness 58–64 HRC, compliant with ASTM A295-26.

Every assembly arrives complete. You never press a bearing into a knuckle or align a tone ring by hand. Bolt it on, torque it to spec, done — that is the whole point of a unitized hub.

Fitment: AWD Only — Check Before You Order

This kit will not fit FWD (front-wheel-drive) RAV4 or NX models. The AWD rear hub has a splined center bore for the half-shaft that passes through it; the FWD version uses a simpler stub-axle design without splines. Installing an FWD bearing on an AWD vehicle ends in a hard fitment failure.

Verify your drivetrain from the VIN or the AXLE code on the vehicle identification plate before ordering. The product page carries the full fitment guide for cross-referencing.

Symptoms of a Failing Rear Hub Bearing

Catch it early and you swap a hub on your own schedule. Let it go and you risk critical wheel play. These are the indicators shops see most on both platforms:

How Shops Diagnose the Fault in 2026

Both platforms use an active magnetic encoder — a ring with alternating N-S magnetic poles embedded in the bearing seal. A Hall-effect or magnetoresistive sensor reads the field changes and outputs a clean digital square wave, accurate even at near-zero speeds. A degraded ring makes the signal erratic, and the codes follow.

1. Connect through a J2534 pass-through device and monitor live wheel-speed PID data under highway-speed simulation on a dynamometer.
2. Watch for signal dropouts or erratic square-wave patterns — telltale signs of encoder ring delamination or bearing cage fatigue.
3. Cross-reference stored DTC freeze-frame data against the 2026 Toyota DTC Index (Pub. No. RM5000U).
4. Measure hub flange runout with a dial indicator. Anything over 0.05 mm (0.002 in) is outside the 2026 OEM service limit.

Shops running Toyota Techstream v22.x over DoIP (Diagnostics over Internet Protocol, per ISO 13400-2) watch the wheel-speed channel in real time. A marginal encoder shows up before it takes the ABS and ADAS functions down with it.

Installation: Torque Numbers You Cannot Guess

Improper torque is the leading cause of premature bearing failure. Never use an impact gun for final tightening — it can Brinell the bearing races, and you will hear noise within the first 5,000 km. Use a calibrated torque wrench and a star or crisscross pattern on the mounting bolts.

Always install a new axle nut — it is not included in the kit. Reusing the old nut risks loosening under thermal cycling, per the 2026 SAE torque-retention study (SAE-2026-01-0987).

Why Replace Both Rear Hubs at Once

Both rear bearings on an AWD vehicle log nearly identical mileage, load cycles, and environmental exposure. When one side fails, the other is statistically near the end of its service life too.

Toyota's 2026 service bulletin T-SB-0042-25 recommends replacing both rear hubs on high-mileage RAV4 vehicles. The 2-piece kit is built for exactly that job: balanced drivetrain performance, symmetrical ABS signal characteristics across both rear channels, and no second shop visit weeks later.

Related Parts for the Same Platforms

If a seized bearing or corrosion damaged the housing it sits in, the 1X Rear Left Driver Side Steering Knuckle for Toyota RAV4, Lexus NX300h and NX200t replaces the casting your hub bolts into. Better to catch that on the lift than on the first drive.

With the wheels off, ignition service is cheap to knock out at the same time. The ECCPP 4-piece ignition coil and spark plug set for the 2.5L L4 fits the NX300h, ES300h, Avalon, Camry, RAV4 and tC.

More Wheel-End Parts and Guides

For hubs, bearings, and other rolling hardware, browse the Wheels, Tires & Parts collection — the full wheel-end catalog in one place.

Running an older RAV4 as well? The complete guide to the A/C compressor with clutch for the 1998–2000 RAV4 (OE# 4710302) covers that job in the same plain-spoken style.

FAQ: Rear Hub Bearing Questions, Answered

The Bottom Line for RAV4 and NX300h Owners

Wheel-end electronics keep multiplying — ABS, adaptive cruise control, over-the-air diagnostic reporting — and the hub bearing has become a precision sensor node. A failed bearing no longer just hums; it can disable safety-critical systems and flag your vehicle in state OBD inspection databases.

A complete pair, torqued to spec, closes the issue in one session.