Rear axle bearing Nissan Navara - a critically important unit, the condition of which determines not only ride comfort, but also safety. Its wear is manifested by a characteristic hum at speed, vibrations, or even wheel jamming. Unlike front-wheel drive models, where wheel bearings are replaced more often, Navara (especially in the version with all-wheel drive NP300 or D40) this process requires more time and specific tools.
In this article we will look at how to diagnose a faulty axle bearing, which spare parts to choose (original vs analogues), and also provide step-by-step instructions with photos and nuances for different generations Navara. We will pay special attention to the typical mistakes that are made during replacement - from incorrect pressing to ignoring checking the seals. If you're planning a DIY repair, you'll find everything here: from a list of tools to tips for break-in after replacement.
Signs of a bad axle bearing on a Nissan Navara
The first signal about problems with the bearing is extraneous noise from the rear wheel side. At the initial stage, it is a barely audible hum, which intensifies when accelerating to 60–80 km/h. Over time, the sound develops into a grinding or knocking sound, and the wheel may begin to “beat” when moving. It is important to distinguish these symptoms from wear of the wheel bearings (they are noisy when cornering) or problems with the axle gearbox (the noise depends on the load).
Other characteristic features:
- 🔴 Vibration on the steering wheel or body when driving on a flat road, especially at speeds above 70 km/h.
- 🔴 Wheel play when checking “on a suspended” car (if you shake the wheel with your hands in a horizontal plane).
- 🔴 Hub overheating after a trip - if you touch the wheel, it will be hotter than the rest.
- 🔴 Uneven tire wear on the inside of the rear wheel (indicates a wheel alignment violation due to play).
On Nissan Navara D22 (2000–2004) and D40 (2005–2015) axle bearings fail more often than on new ones NP300, due to the design features of the bridge. For example, on D40 with differential M226 The bearing is integrated into the axle shaft, making replacement difficult. On NP300 (since 2015) the unit is more protected from moisture, but when driving off-road, the service life is still reduced to 80–100 thousand km.
⚠️ Attention: If you ignore the noise of the bearing, it can completely collapse, which will lead to the wheel jamming while driving. On Navara with differential locking this is especially dangerous - the risk of damage to the axle gearbox increases 3 times.
- Less than a month
- 1–3 months
- More than 6 months
- I haven't seen it yet, but I want to check it out
Which axle bearings are suitable for Nissan Navara: original vs analogues
The choice of spare parts depends on the generation Navara and type of bridge. Original bearings from Nissan have articles:
- 🔧 D22 (2000–2004):
40520-35X00(left) and40520-35X01(right). - 🔧 D40 (2005–2015):
40520-1X600(for bridgeM226). - 🔧 NP300 (since 2015):
40520-1X610(universal for both sides).
The cost of the original is from 4,500 to 7,000 rubles per piece. However, many owners choose analogues from trusted brands:
| Brand | Article | Price, rub. | Features |
|---|---|---|---|
| NTN | 4T-40520 |
3 200–4 100 | Japanese quality, suitable for D40 And NP300 |
| Koyo | 40520-35X00 |
3 800–4 500 | Reinforced design, service life up to 150 thousand km |
| SKF | VKBA 3643 |
4 200–5 000 | Best choice for tough conditions (off-road, towing) |
| Febi | 30636 |
2 800–3 500 | Budget option, suitable for D22 |
When purchasing, pay attention to complete set: some analogues come without a locking ring or oil seal. For example, in the original set for NP300 there is an o-ring 38345-1X600, which often leaks after replacing a bearing. If you do not change it, the oil will quickly leak out of the bridge, and the repair will have to be repeated.
⚠️ Attention: On Navara D40 with lockable differential M226 The axle bearing has an increased internal diameter. Installing a “regular” analogue will lead to play and rapid wear!
Before purchasing, check the markings on the old bearing - sometimes on Navara install units from other models Nissan (for example, from Pathfinder R51), and the article numbers may not match.
Tools and preparation for replacing the axle bearing
To work, you will need a specialized tool. Without it, the risk of damaging the axle shaft or axle increases significantly. Here is the minimum set:
- 🔧 Bearing puller (For example, Kukko 204-2 or equivalent).
- 🔧 Hydraulic press (or a powerful vice with mandrels).
- 🔧 Set of heads and knobs (especially the 32mm socket for the axle nut).
- 🔧 Torque wrench (for tightening the nut with a torque of 180–220 Nm).
- 🔧 Hammer and copper drift (for neat pressing).
- 🔧 Lubrication Loctite LB 8008 (for processing seats).
Also prepare:
- 🛠️ New gear oil (For example, Nissan Differential Oil GL-5 80W-90, 1 liter).
- 🛠️ Solvent (to clean the axle shaft from old grease).
- 🛠️ Rags and gloves (the work is dirty, oil will leak from the bridge).
Before starting work:
- Place the machine on flat area and secure the front wheels with chocks.
- Loosen the axle nut before lifting on the jack (it is tightened with a large torque).
- Raise the back Navara and remove the wheel. Place a safety support under the bridge.
- Drain the oil from the gearbox (if you plan to replace the oil seal).
Loosen the axle nut (32mm wrench)|
Drain the oil from the axle (if required)|
Prepare the puller and mandrels for pressing |
Check the presence of a new oil seal and retaining ring -->
Step-by-step instructions for replacing an axle bearing
The replacement process takes 3–5 hours (depending on experience). The main thing is to take your time and follow the order of actions. Below are instructions for Nissan Navara D40 (similar for NP300, but with nuances regarding the removal of the axle shaft).
Step 1: Removing the Axle Shaft
1. Unscrew the axle nut (tightening torque: 180–220 Nm). If it does not give in, use a wrench extension or heat the nut with a gas torch (do not overheat!).
2. Remove the brake drum (on D40 it may “stick” - gently tap it with a hammer through a wooden spacer).
3. Remove the axle shaft from the bridge. If it does not come out, use a puller or carefully pry it off with a pry bar (do not damage the oil seal!).
Step 2: Removing the old bearing
1. Clamp the axle shaft in a vice through soft pads (so as not to damage the thread).
2. Remove the retaining ring using pliers.
3. Use a puller to press out the bearing. If it is not there, you can carefully cut off the outer ring with a grinder (but this is risky - you can damage the seat).
What to do if the bearing is stuck?
If the bearing cannot be removed with a puller, try heating the axle shaft with a hair dryer (up to 100–150°C). This will expand the metal and make removal easier. Do not use open fire - this will damage the heat treatment of the metal!
Step 3: Install the New Bearing
1. Clean the seat on the axle shaft from rust and old grease. Use fine sandpaper (400-600 grit).
2. Apply a thin layer of lubricant Loctite LB 8008 onto the landing surface.
3. Carefully press in the new bearing using a mandrel (it should only press on outer ring!). Pressing in with a hammer is unacceptable - this will damage the clip.
4. Install a new retaining ring.
Step 4: Assembly and running in
1. Insert the axle shaft back into the axle. Make sure it is seated all the way (you should hear a click).
2. Tighten the axle nut with a torque wrench (torque - 200 Nm for D40, 180 Nm for NP300).
3. Pour new oil into the gearbox (volume - 1.2–1.5 liters depending on the model).
4. After assembly, check the wheel play and do a test drive of 5-10 km. In the first 200 km, avoid sudden acceleration and braking - the bearing needs to “get used to.”
The main thing when replacing is not to damage the seat of the axle shaft. If scuffing appears on it, the new bearing will last no more than 10–20 thousand km.
Common mistakes when replacing an axle bearing on a Navara
Even experienced craftsmen sometimes make mistakes that lead to repeated repairs. Here are the most common:
- 🚫 Using a hammer to press in - this deforms the bearing race and reduces its service life.
- 🚫 Saving on oil seal - if it is not replaced, the oil will quickly leak out and the bridge will be left without lubrication.
- 🚫 Incorrect nut tightening torque — weak tightening leads to play, strong tightening leads to bearing destruction.
- 🚫 Ignoring backlash check after assembly - if the wheel “dangles”, the bearing is installed crookedly.
- 🚫 Forgetting to lubricate the seat — without lubrication, the bearing may “bite” during installation.
Another common problem is mixed up sides. On D40 The left and right bearings of the axle shaft may differ (for example, in the location of the oil deflector). If you put the right bearing on the left side, the seal will leak.
⚠️ Attention: On Navara NP300 with electronic differential lock (ELSD) after replacing the bearing, an error may light upC1105(wheel speed sensor malfunction). In this case, errors must be reset by the scanner (for example, Launch X431).
How much does it cost to replace an axle bearing at a service station?
The price of the work depends on the region and complexity. On average for Russia:
| Type of work | Cost, rub. | Time |
|---|---|---|
| Bearing replacement (one side) | 4 000–7 000 | 3–4 hours |
| Replacing bearing + oil seal | 5 500–9 000 | 4–5 hours |
| Replacing bearings on both sides | 8 000–14 000 | 6–8 hours |
| Bridge diagnostics (checking play, noise) | 1 000–1 500 | 30–60 min |
The cost of spare parts (bearing + oil seal + oil) will cost 6,000–12,000 rubles. Total complete renovation of one side at a service station it will cost 10,000–20,000 rubles. Replacing it yourself will save up to 50%, but requires tools and experience.
Some services offer a “simplified” replacement - without removing the axle shaft (the bearing is knocked out directly on the car). This method is not valid - it damages the oil seal and often leads to oil leakage after 1–2 thousand km.
FAQ: Frequently asked questions about replacing the axle bearing on a Nissan Navara
Is it possible to drive with a humming axle bearing?
Short-term (1-2 weeks) - yes, but not worth the risk. At speeds above 80 km/h, a damaged bearing can jam, leading to an accident. Particularly dangerous on Navara with all-wheel drive - there is a risk of damage to the transfer case.
How to check the axle bearing without removing the wheel?
Raise the car on a jack and rock the wheel in a horizontal plane. Play of more than 1–2 mm is a sign of wear. Also listen to the noise when the wheel rotates (there should be a uniform rustling sound, not a grinding sound).
Do I need to change the oil in the axle after replacing the bearing?
Definitely! When removing the axle shaft, some of the oil leaks out, and the old one may contain metal particles from a worn bearing. Fill with new oil GL-5 80W-90 (volume - 1.2–1.5 l).
What are the differences between bearings for D40 and NP300?
On D40 the bearing is integrated into the axle shaft and has a larger diameter (part number 40520-1X600). On NP300 it is removable, with an article number 40520-1X610, and it is easier to replace without special tools.
Is it possible to use a used bearing from disassembly?
Absolutely not. A bearing is a limited-life part, and even if it looks fine, the inner races may have worn out. The risk of repeated repairs after 5–10 thousand km is not justified.