Long revered for its robustness, the Toyota 4Y engine is a testament to engineering longevity. This engine model has been a backbone in the South African automotive landscape, especially when it comes to light trucks and commercial vehicles. Let’s delve into the mechanics, performance, and multifaceted applications of this workhorse.

Engine Specifications

Displacement: 2.2 L (2,237 cc)
Layout: Overhead Camshaft (OHC)
Valve Configuration: Eight-Valve
Diameter x Stroke: 91 mm x 86 mm (3.58 in x 3.39 in)

Variant Fuel Type Power Output Torque
4Y (Carbureted) Carburetor 70 kW (95 PS; 94 hp) 18.6 kgm (182 Nm)
4Y-E Fuel-Injected
GW491Q/LJ491Q Fuel-Injected
4G22B (Chinese Make) Fuel-Injected

Performance Metrics

When coupled with a 1989 Daihatsu Delta pickup, the carbureted version of the 4Y engine exhibits:

  • Power: 70 kW (95 PS; 94 horsepower) at 4400 rpm (SAE net)
  • Torque: 18.6 kgm (182 Nm; 135 lbfft) at 3000 rpm

If you’re interested in understanding more about Toyota engines, especially their specifications and common issues, you might want to explore all you need to know about the Toyota 2JZ-GTE engine.

Toyota 4y Engine Specs and Features

Engine Specification Value
Engine Type Gasoline (Petrol)
Engine Capacity 2.2 liters
Displacement 2,237 cc
Power Output Around 63 kW
Horsepower 84 hp
Lifespan Approximately 320,000 km
Common Applications Toyota Hilux, Toyota HiAce vans, Toyota forklifts
Reputation Reliable and durable
Identifying Features Metal plate with engine model code starting with “4Y”
Other identifying marks on components such as cylinder head or valve cover

Toyota 4Y Engine: An Overview of Robust Versatility

Core Specifications

The Toyota 4Y engine is an engineering masterpiece, designed with an Overhead Valve (OHV) structure that features eight valves. Its power comes from a substantial 2.2-litre (2,237 cc) displacement, providing a blend of durability and performance.

Performance Metrics

When operating in its carbureted form, this engine delivers a potent 70 kW (95 PS; 94 horsepower) at 4400 rpm (SAE net). Additionally, it churns out an impressive 18.6 kgm (182 Nm; 135 lb-ft) of torque at 3000 rpm. These specifications are facilitated by its precision-crafted diameter and stroke of 91 mm x 86 mm (3.58 in x 3.39 in).

Fuel-Injected Options

Interested in a fuel-injected variant? The GW491Q/LJ491Q and 4G22B are the versions crafted in China, while the 4Y-E stands as the moniker given by its Japanese creators.

Versatility in Applications

This engine isn’t just a powerplant; it’s a multi-role performer. The 4Y engine has seen action in several vehicles, among them:

  • Daihatsu Delta
  • Toyota Stout (YK110)
  • Daihatsu Rocky F95
  • Toyota 4Runner
  • Toyota Industries Forklifts
  • Toyota Hilux (4th and 5th generations)

Maintenance-Friendly Design

One of the standout aspects of the 4Y engine is its ease of use. It comes with a simple, uncluttered design and few moving parts, making it incredibly easy to service and repair.

Eco-Friendly and Economical

What’s more, the 4Y engine is renowned for its fuel efficiency and low emissions, making it an eco-friendly choice in the world of engines.

Longevity and Reputation

Above all, the 4Y engine is known for its longevity and dependability, cementing its popularity across various applications and industries.

Difference between 3y and 4y engine

Specification 3Y Engine 4Y Engine
Displacement 2.0 L 2.2 L
Power Output 88 hp (66 kW) 98 hp (73 kW)
Torque Output 119 lb-ft (161 Nm) 123 lb-ft (167 Nm)
Valvetrain SOHC SOHC
Fuel System Carbureted Carbureted

Advantages and Disadvantages


  1. Durability: The Toyota 4Y engine is known for its long life span, often lasting up to around 320,000 km, with proper maintenance.
  2. Simplicity: The OHV design and hydraulic lifters make the engine simple to maintain and repair.
  3. Availability: The engine is widely available and can be easily found in salvage yards or from online suppliers.
  4. Low cost: Compared to newer engines, the 4Y is relatively inexpensive, making it a popular choice for those on a budget.


  1. Fuel economy: The carbureted version of the 4Y engine has poor fuel economy compared to newer engines.
  2. Complex carburettor: The carburettor on the 4Y engine is structurally complex and requires careful adjustment to function correctly.
  3. Unusual ignition system: The ignition system on the 4Y engine is unique and may require specialized knowledge for repair.
  4. Overheating issues: The head of the block is prone to overheating, which can lead to a breakdown of the gasket.

Reliability and maintenance:

The 4Y engine is generally considered reliable, but like any engine, it requires regular maintenance to ensure its longevity. Routine maintenance includes oil changes, spark plug replacement, and regular carburettor and ignition system inspections. Proper maintenance can help prevent overheating, oil consumption, and gasket failures. Additionally, replacement parts for the engine are widely available, making it relatively easy and affordable to repair.


Is Toyota 4Y a good engine?

Yes, the Toyota 4Y engine is generally considered to be a reliable and durable engine. Its simple design and use in a variety of Toyota vehicles and industrial equipment are testaments to its longevity.

How long does a 4Y engine last?

The Toyota 4Y engine has a reputation for being a durable and long-lasting engine, with an estimated lifespan of around 320,000 km. However, the lifespan of any engine depends on factors such as maintenance, driving conditions, and usage patterns.

How do I identify my Toyota 4Y engine?

To identify a Toyota 4Y engine, you can look for a metal plate attached to the engine block. The plate will have the engine model code, which typically starts with “4Y” followed by a series of numbers and letters that denote the specific variant of the engine. Additionally, the engine may have other identifying marks or labels on components such as the cylinder head or valve cover. If you are still having trouble identifying the engine, a Toyota dealership or a qualified mechanic should be able to assist you.

What is the engine capacity for 4Y?

The engine capacity for the Toyota 4Y is 2.2 liters or 2,237 cc.

Final Thoughts

In conclusion, the Toyota 4Y engine is a reliable and durable option used in various Toyota vehicles for many years. While it does have some disadvantages, proper maintenance and care can help prolong its lifespan. If you need a looking for a Toyota 4Y engine for sale or looking to upgrade to a different engine, Engine Finder can help. We allow you to compare quotes from our network of Toyota engine importers and scrap yards in South Africa. Take action now and get the best deal on your next engine replacement.



craig sandeman rotated

Drawing from extensive expertise in the used car parts industry, Craig Sandeman has established himself as a trusted authority in automotive repair. He possesses a deep knowledge of the challenges encountered by individuals seeking reliable car parts, making him a highly sought-after expert in this field.


Potential issues, causes, and solutions have been identified in the above article based on the experiences of car owners and repairers, as well as web materials such as forum blogs and technical support bulletins. This data is supplied exclusively for the purpose of reference. Only appropriately qualified persons should perform repairs and/or changes on your vehicles.

While it’s important to keep in mind, it’s also important to note that the amount of times anything is mentioned here should not be seen as a sign of its reliability or frequency. Various owners, driving in different ways, and caring for their vehicles in distinct ways will cause two identical vehicles to perform differently.

As previously said, this material is supplied primarily for reference reasons; nonetheless, we hope that by doing so, we will be able to supply you with essential knowledge that will allow you to make informed decisions whenever you encounter any of the aforementioned setbacks.

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