Owners Nissan AD - one of the most popular commercial vehicles in Russia - are often faced with the need to replace rims. Whether it is a transition to wider or lighter models, a seasonal change of tires or banal wear, the key parameter remains drilling (or PCD - Pitch Circle Diameter). An error in choosing this parameter can lead not only to vibrations at speed, but also to damage to the hub or even an emergency.
In this article we will look at unique drilling features for Nissan AD, including factory parameters, permissible deviations and nuances of selecting non-original disks. You will learn how to correctly measure PCD yourself, which brands offer suitable models, and why even the slightest mismatch in mounting can result in serious problems. And for those who are planning tuning, there is a separate section about non-standard solutions with examples of successful modifications.
What is disc drilling and why is it critical for Nissan AD
The drill bit (or bolt pattern) is the diameter of the circle on which the holes for attaching the disk to the hub are located. For Nissan AD this parameter is denoted as PCD 6×139.7, where:
- 🔢 6 — number of holes for bolts;
- 📏 139.7 mm - the diameter of the circle around which they are located.
Feature AD is that its hub is designed for a high load (the car is often used to transport goods), so even the slightest mismatch of the PCD leads to:
- ⚠️ Uneven tire wear due to disk misalignment;
- 🔧 Loosening of fastenings when driving off-road;
- 💥 Risk of wheel separation at high speed.
Many owners mistakenly believe that they can use PCD discs. 6×139.7 And 6×140 alternately, but in practice a difference of 0.3 mm leads to off-center landing. This is especially critical for Nissan AD, where the load on each wheel can exceed 500 kg.
- Every season
- Once every 2-3 years
- Only if damaged
- Never changed
Factory drilling parameters for Nissan AD: compatibility table
Official data from the manufacturer states that for all modifications Nissan AD (including AD Van And AD Wagon) a single drill is provided. However, there are nuances depending on the year of manufacture and body type. Below is a table with exact parameters:
| Modification | Year of manufacture | PCD (drilling) | ET (departure) | DIA (center hole diameter) |
|---|---|---|---|---|
| Nissan AD (WD21) | 1982–1990 | 6×139.7 |
+15...+25 | 106.1 mm |
| Nissan AD Van (WD21V) | 1986–2000 | 6×139.7 |
+20...+30 | 106.1 mm |
| Nissan AD Wagon (WD21W) | 1990–1999 | 6×139.7 |
+10...+20 | 106.1 mm |
| Nissan AD (YD22) (diesel) | 1995–2000 | 6×139.7 |
+25...+35 | 106.1 mm |
Pay attention to the parameter DIA (center hole diameter) - it must match the diameter of the hub Nissan AD (106.1 mm). If the hole in the disc is larger, you will need centering rings, otherwise the wheel will not be mounted in the center, which will lead to runout.
⚠️ Attention: PCD discs 6×140 (for example, from Toyota Hilux) visually match Nissan AD, but their use leads to uneven tightening of bolts and the risk of self-unscrewing on rough roads.
How to measure a drill yourself: step-by-step instructions
If you are buying used wheels or are unsure about the markings, the drill hole can be measured by hand. For this you will need:
- 📐 Caliper or ruler;
- 🔧 Wheel loosening key;
- 📝 Paper and pencil for notes.
Step 1. Remove the wheel and clean the hub from dirt. Make sure the bolt holes are not deformed.
Step 2. Measure the distance between the centers of two adjacent holes (denote it as A). For Nissan AD with PCD 6×139.7 it must be 111.5 mm.
Step 3. Use the formula to calculate PCD:
PCD = A / sin(180° / количество отверстий)For 6 holes: PCD = 111.5 / sin(30°) = 111.5 / 0.5 = 223 mm (circle diameter). However, in practice it is easier to check the table or use an online calculator.
Measure the distance between adjacent holes (A)
Check value A with the reference (111.5 mm for AD)
Check center hole diameter (DIA)
Make sure there is no deformation on the hub -->
Step 4. Check compatibility by departure (ET). For Nissan AD permissible range - from +10 to +35, but it is considered optimal +20...+25. Too much overhang will narrow the track, and too little will increase the load on the bearings.
Selection of non-original wheels: which brands are suitable for Nissan AD
Original wheels from Nissan for AD They have not been produced for a long time, so owners have to choose among analogues. Fortunately, the drill 6×139.7 common among SUVs and pickups, which expands the choice. Here are the proven brands and models:
- 🚙 Kosei (Japan) - light alloy wheels of the series K1 Racing with departure
+20; - 🏔️ Pro Comp (USA) - steel wheels for off-roading with reinforced fastenings;
- 🔧 AEZ (Germany) - wheels AEZ Argus with PCD
6×139.7and D.I.A.106.1; - 💎 BBS — premium forged wheels (series CH-R), but require adaptation to the flight.
When choosing, pay attention to:
- 🔄 Material: steel wheels are cheaper, but heavier (important for load capacity AD);
- ⚖️ Weight: alloy wheels are 20–30% lighter, which reduces the load on the transmission;
- 🛡️ Guarantee: some brands (eg Kosei) provide a lifetime guarantee against cracks.
⚠️ Attention: Discs from Nissan Navara (D22) have a similar drilling (6×139.7), but their departure (ET +25...+40) may not be suitable for AD without using spacers. This is fraught accelerated wear of ball joints.
Before purchasing discs, check them for hidden cracks using ultraviolet lamp — microdamages are often not visible to the naked eye, but appear under UV rays.
Tuning and non-standard solutions: what is possible and what is not
Many owners Nissan AD strive to improve the appearance or cross-country ability of the car by installing wheels with non-standard parameters. However, there are strict limitations:
- ✅ Acceptable:
- Increasing the rim width to
8J(from factory6J), but with mandatory offset adjustment; - Using PCD Discs
6×139.7from other models (for example, Mitsubishi L200 or Isuzu D-Max); - Installation of spacers up to thickness
20 mmto correct the departure.
- Increasing the rim width to
- ❌ Prohibited:
- Using PCD Discs
5×139.7(from Nissan Patrol) — discrepancy in the number of holes; - Installing disks with DIA more
106.1 mmwithout centering rings; - Exceeding the maximum disk load (for AD - no more
800 kg per wheel).
- Using PCD Discs
Example of successful tuning: owners AD Wagon disks are often installed Kosei K1 size 15×7J with departure ET +15 and rubber 215/75 R15. This improves handling and gives the car a more aggressive look without compromising safety.
What happens if you install disks with PCD 6x140?
When installing discs from PCD 6×140 on Nissan AD the following will happen:
1. The bolts will not tighten evenly - one hole will be offset by 0.3 mm.
2. When moving there will be figure eight effect — the wheel will “walk” slightly relative to the hub.
3. At speeds above 80 km/h, vibration will appear, and when driving off-road, the bolts will begin to unscrew themselves.
4. After 5–10 thousand km, uneven wear of the wheel bearing and ball joints will occur.
Top 5 mistakes when choosing wheels for Nissan AD
Even experienced motorists sometimes make mistakes that result in expensive repairs. Here are the most common:
- Ignoring the DIA parameter. Center hole
106.1 mmshould match perfectly. If it is larger, the disk will be bolted on, which will lead to runout. - Buying discs with PCD 6×140. As already mentioned, a difference of 0.3 mm is critical for AD due to high loads.
- Incorrect departure (ET). Too much offset will narrow the track, and too little will increase the load on the suspension.
- Using bolts of the wrong length. The bolts must be 3-5mm longer than the thickness of the disc, otherwise they will not tighten completely.
- Neglect of balancing. Even perfectly matched wheels require balancing after installation.
To avoid these errors, always check the disk parameters with data from instruction manuals Nissan AD or use online configurators (for example, on websites Kosei or AEZ).
The most dangerous mistake is using PCD discs 6×140 instead of 6×139.7. It leads to uneven tightening of the bolts and the risk of the wheel coming off off-road.
Where to buy wheels for Nissan AD: verified sellers and prices
When purchasing discs for Nissan AD It is important to choose a reliable seller to avoid counterfeits. Here are the tested options:
| Disc type | Brand/Model | Price (for 1 piece) | Where to buy |
|---|---|---|---|
| Steel | Pro Comp 7069 | from 3,500 ₽ | 4x4shop.ru |
| Cast | Kosei K1 (15×7J) | from 8,000 ₽ | JapanShop.ru |
| Forged | BBS CH-R (16×7.5J) | from 15,000 ₽ | BBS Russia |
| Replicas | AEZ Argus | from 5,000 ₽ | Wheels for free |
When purchasing used drives, be sure to check:
- 🔍 No cracks (especially around bolt holes);
- 🧲 Magnetic properties (if the disk is not magnetic, it is not steel, but aluminum or a low-quality alloy);
- 📏 Geometry (rolling on the stand will show whether there is an “eight”).
Average cost of a set of 4 discs for Nissan AD:
- 💰 Steel:
12 000–18 000 ₽; - 💰 Cast:
25 000–40 000 ₽; - 💰 Forged:
50 000–80 000 ₽.
FAQ: Frequently asked questions about drilling Nissan AD wheels
Is it possible to install wheels with PCD 6x140 on Nissan AD?
No, this is absolutely not recommended. 0.3mm difference between 6×139.7 And 6×140 leads to uneven tightening of the bolts and the risk of the wheel unscrewing on uneven roads. For Nissan AD this is especially dangerous due to the high loads on the suspension.
Which rims fit other cars?
On Nissan AD You can install drives from the following models with PCD 6×139.7:
- Nissan Navara (D22);
- Mitsubishi L200 (until 2015);
- Isuzu D-Max (first generation);
- Mazda BT-50 (until 2011).
However, please note departure (ET) And DIA - they must match or be adjusted with spacers/rings.
What should I do if the central hole in the disk is larger than 106.1 mm?
If the disk DIA is larger 106.1 mm, must be used centering rings (hubs). They compensate for the difference and ensure that the wheel fits correctly on the hub. Without rings, the disc will be bolted on, which will lead to runout and accelerated wear of the bearings.
Example: if the disk DIA 110 mm, and the hubs AD — 106.1 mm, you will need a ring thick 1.95 mm ((110 – 106.1) / 2).
What is the optimal offset (ET) for Nissan AD?
Factory offset for Nissan AD varies from +10 to +35 depending on modification. The optimal range is considered +15...+25. Too much offset (ET +30 and above) will narrow the track and increase the load on the internal bearings, and too small (ET +10 and below) can lead to contact with the wheel arch liners.
Can spacers be used to adjust offset?
Yes, spacers up to thickness 20 mm can be used to adjust departure, but with reservations:
- Spacers must be strengthened (made of aluminum alloy or steel);
- Must use extended bolts appropriate length;
- Required after installation rebalancing wheels
It is not recommended to install thicker spacers 25 mm - this will significantly increase the load on the wheel bearings.