Nissan Datsun D21: a legendary pickup truck with a 30-year history

Pickup Nissan Datsun D21 - one of the most recognizable and long-lived models in the line of the Japanese automaker. Produced from 1985 to 1997, it became a true workhorse for farmers, builders and off-road enthusiasts. Despite their venerable age, these machines are still actively used all over the world, including Russia, where they are valued for their simplicity of design, reliability and availability of spare parts.

In this article we will look at all aspects in detail Nissan D21: from technical characteristics of different generations to the nuances of repair and tuning. You will learn which engines are considered the most reliable, how to recognize a “dead” copy when purchasing, and which modifications are best avoided. We will pay special attention A unique feature of the D21 is that the body panels are compatible with later Nissan Navara D22 models, which greatly simplifies repairs after an accident.

Model history: from Datsun to Nissan

Initially, the pickup truck debuted under the brand Datsun - a brand name that Nissan used for export in the 1980s. Only in 1986 the model officially began to be called Nissan Pickup D21, although in some countries (for example, Mexico) the name Datsun remained until the end of production. This was a period of global expansion for Japanese automakers, and the D21 became one of the key players in the commercial vehicle market.

Over the 12 years of production, the pickup truck has undergone several significant updates:

• 🔹 1985–1989 - first generation with angular design, gasoline engines Z20 And Z24, as well as diesel SD25 (select markets only).
• 🔹 1990–1993 - restyling with more streamlined shapes, the appearance of injection engines and an all-wheel drive version 4WD with transfer case.
• 🔹 1994–1997 — final update, including new bumpers, radiator grille and improved cabin sound insulation.

Interestingly, in North America the D21 was sold as Nissan Hardbody - a name emphasizing the strength of the frame and body. In Japan, the model was named Nissan Truck, and in Australia - Nissan Navara, which later became the name of D22's heir.

Technical characteristics: engines and transmissions

One of the main advantages Nissan D21 is a wide selection of power units. Depending on the market and year of manufacture, the pickup truck was equipped with gasoline and diesel engines, as well as manual and automatic transmissions. Let's look at the most common options:

Engine	Type	Volume	Power	Features
Z20S	Gasoline, carburetor	2.0 l	95 hp	Simple and maintainable, but weak for heavy loads
Z24	Gasoline, carburetor	2.4 l	106–110 hp	The most common option, resource up to 300 thousand km
KA24E	Gasoline, injector	2.4 l	134 hp	More economical and powerful, but sensitive to fuel quality
SD25	Diesel, mechanical injection pump	2.5 l	75–85 hp	Resource up to 500 thousand km, but difficulties with spare parts

The transmission on the D21 is represented by two main types of gearboxes:

• 🔧 Mechanical 5-speed (series FS5W71B) - reliable, but requires regular oil changes (every 60 thousand km).
• 🔧 Automatic 4-speed (series RE4R01A) - less common, weak point - torque converter.

⚠️ Attention: When purchasing a D21 with an automatic transmission, be sure to check the service history. These automatic transmissions are extremely sensitive to overheating, and if the oil is not changed on time, repairs can cost half the cost of the car.

Suspension and chassis: weak points and repairs

Chassis Nissan D21 built according to the classic scheme for pickup trucks of that time: dependent front suspension on springs (for 4WD - with a torsion beam) and dependent rear suspension on springs. This design provides high load capacity, but sacrifices comfort. Let's look at the key components and their typical problems:

Front suspension:

• 🛠️ Ball joints — wear out every 80–100 thousand km. Symptom of malfunction: knocking noise when driving over bumps.
• 🛠️ Silent blocks of levers - crack over time, especially on cars with over 200 thousand km.
• 🛠️ Torsion beam (4WD) - may sag, which leads to uneven tire wear.

Rear suspension:

• 🛠️ Springs — lose elasticity after 150–200 thousand km, which leads to body sagging.
• 🛠️ Shock absorbers — the original ones last no more than 100 thousand km, it is recommended to install reinforced analogues.
• 🛠️ Bridge - on vehicles with all-wheel drive, play may appear in the axle bearings.

Particular attention should be paid steering. Early models were equipped with a steering linkage, which becomes loose over time. On later versions, a steering gear appeared, but it also requires adjustment every 50 thousand km.

⚠️ Attention: If you hear a creaking sound or feel “stiffness” when turning the steering wheel, the steering rods most likely need to be replaced or the joints lubricated. Ignoring the problem can lead to the steering wheel jamming while driving.

Typical faults and how to avoid them

Like any used car, Nissan D21 has a number of “diseases” that every potential owner should know about. Some of them are critical, others are easily eliminated. Here are the most common:

Engine and cooling system:

• 🔥 Overheating - a common problem due to a clogged radiator or faulty thermostat. On diesel SD25 may lead to a crack in the cylinder head.
• 🔥 Oil leak — through the valve cover gasket (on Z24) or the rear crankshaft oil seal (on engines with mileage over 250 thousand km).
• 🔥 Floating speed - on injection KA24E The culprit is often a dirty throttle body or mass air flow sensor.

Electrics and interior:

• ⚡ Oxidation of contacts - especially in the fuse box and on the generator. Leads to unstable operation of headlights and devices.
• ⚡ Wiring wear — in places where there is rubbing against the body (for example, under the hood near the battery).
• ⚡ Stove malfunction - most often the culprit is a jammed heater tap or a leaky radiator.

How to check D21 for hidden problems?

1. Start the engine cold - if blue smoke comes out of the exhaust, this is a sign of wear on the piston rings.

2. Check the oil on the dipstick - if it looks like “coffee grounds”, there is water in the engine (the cylinder head gasket may be broken).

3. Inspect the side members for rust - if they are rotten, restoring the body will cost more than the car itself.

One of the most annoying problems is body corrosion. Particularly vulnerable:

• 🚗 Thresholds and lower parts of doors.
• 🚗 Wings (especially in places where they are attached to the body).
• 🚗 Frame under the cab (on vehicles operated in snowy regions).

Tuning and modernization: from practical to extreme

Thanks to its simple design and large number of spare parts, Nissan D21 - an excellent platform for tuning. Depending on the owner’s goals, modifications can be divided into several categories:

Practical tuning (for work and off-road):

• 🔧 Reinforced springs - for example, from Old Man Emu or Tough Dog, increase the load capacity to 1.5 tons.
• 🔧 Crankcase and fuel tank protection - Required for driving on forest roads.
• 🔧 Snorkel — allows you to overcome deep fords without the risk of water hammer.

Aesthetic tuning:

• 🎨 Sports bar or roll bar — gives an aggressive look and increases body rigidity.
• 🎨 LED headlights and fog lights — improve lighting and modern appearance.
• 🎨 Vintage stickers - for example, logos Datsun or Hardbody for retro style.

Engine and transmission:

• 🔥 Swap on KA24DE — a more modern 2.4-liter engine with 16 valves (155 hp), installed without major modifications.
• 🔥 Turbocharging on the Z24 - a budget way to increase power to 150–160 hp, but requires strengthening the piston group.
• 🔥 Differential lock - for example, ARB Air Locker, for serious off-road use.

When tuning a transmission, the following is often installed:

• 🔧 Box from Nissan 240SX — with “shorter” gears for dynamic driving.
• 🔧 Transfer case with reduction gear - for extreme off-road conditions (for example, from Nissan Pathfinder R50).

Comparison with competitors: which is better, D21 or Toyota Hilux?

Main rival Nissan D21 on the secondary market - Toyota Hilux third and fourth generations (1988–1997). Both pickups are valued for their reliability, but each has its pros and cons. Let's compare them based on key parameters:

Parameter	Nissan D21	Toyota Hilux (1988–1997)
Engine reliability	Good, but diesel SD25 picky about fuel	Better, especially diesels 2L And 3L
Maintainability	High, many interchangeable parts with D22	Higher, but spare parts are 20–30% more expensive
Patency	Good, but less ground clearance	Better thanks to longer travel suspension
Comfort	Hard suspension, noisy cabin	A little softer, but also Spartan conditions
Secondary market price	15–25% cheaper	More expensive due to the image of an “indestructible” car

So which pickup should you choose? If you need budget working tool with a simple design and cheap spare parts, Nissan D21 - an excellent option. If the priority is maximum reliability and maneuverability, and you are willing to pay more for service, then Toyota Hilux would be preferable.

However, there is one caveat: The D21 is better tuning thanks to a more spacious engine compartment and compatibility with engines from sports Nissans (for example, SR20DET). This makes it a favorite among enthusiasts who want to create a unique project.

Where to buy and how much does Nissan D21 cost in 2026?

Prices for Nissan D21 Depends greatly on condition, configuration and region. In Russia the main sources of purchase are:

• 📌 Japanese auctions (through intermediaries) - the cheapest copies (from 150 thousand rubles), but with the risk of hidden problems.
• 📌 American market — cars are cleaner, but more expensive (from 300 thousand rubles) plus customs.
• 📌 Local ads (Avito, Drom) - prices from 200 to 500 thousand rubles. depending on mileage.

Cost of spare parts and repairs:

• 🔧 Engine is contract — from 30 to 80 thousand rubles. (depending on model).
• 🔧 Gearbox — 20–40 thousand rubles.
• 🔧 Body work — from 50 thousand rubles. for a full paint job.
• 🔧 Tuning kits (elevator, bumpers) - from 100 thousand rubles.

When purchasing, pay attention to:

• 🔍 Frame condition - if it is rotten, restoration will cost half the cost of the car.
• 🔍 Availability of documentation - especially if the pickup is imported.
• 🔍 Transmission condition — check the oil in the transfer case and axles (it should be free of metal shavings).

⚠️ Attention: Many D21s in Russia have a “gray” history - they are imported as “spare parts” or with fake title. Before purchasing, check the car through the service GIBDD.RF or Autocodeto avoid registration problems.

FAQ: answers to frequently asked questions about the Nissan D21

❓ Which engine on the D21 is the most reliable?

Gasoline is considered the most durable Z24 (2.4 l, carburetor). It is easier to repair, less demanding on fuel, and with proper maintenance it can easily cover 300–400 thousand km. Diesel SD25 more durable (resource up to 500 thousand km), but spare parts for it are more difficult to find.

❓ Is it possible to install diesel from D22 on D21?

Technically possible, but serious modifications will be required: replacement of engine mounts, modification of the exhaust system and electrical wiring. The most compatible option is TD27 (2.7 l), but it’s easier and cheaper to find a contract one SD25.

❓ What oil to pour into the D21 engine?

For gasoline engines (Z24, KA24E) semi-synthetic is recommended 10W-40 (For example, Mobil Super 2000 or Lukoil Lux). For diesel SD25 - mineral or semi-synthetic oil 15W-40 with permission API CD. You need to change the oil and filter every 7–8 thousand km.

❓ What is the fuel consumption of the D21?

Consumption depends on the engine and operating conditions:

• 🔥 Z24 (carburetor) - 12–14 l/100 km in the city, 9–10 l on the highway.
• 🔥 KA24E (injector) - 11–13 l/100 km in the city.
• 🔥 SD25 (diesel) - 8–10 l/100 km in the combined cycle.

❓ Is it possible to install all-wheel drive on a rear-wheel drive D21?

Yes, but it is a labor-intensive process. You will need:

• 🔧 Transfer case from the all-wheel drive version.
• 🔧 Front axle and cardan shafts.
• 🔧 Modification of suspension mounts.

The cost of alteration is from 150 thousand rubles. (including spare parts). Most often, such tuning is justified for off-road use, and not for everyday driving.