RB25 Engine Price range: $3,500.00 through $8,000.00Select options
RB25 Engine
The RB25 engine is a 2.5-liter inline-6 gasoline engine known for its smooth power delivery, strong internals, and legendary tuning potential. Featuring a cast-iron block, aluminum cylinder head, DOHC 24-valve configuration, and in turbo variants a high-performance turbocharger, the RB25 delivers impressive performance and durability. Producing between 180 and 280 horsepower depending on the version, it is built for both street and performance use. Developed by Nissan, the RB25 engine is widely used in Skyline models and remains a favorite for engine swaps and high-horsepower builds.
In Stock
$3,500.00 – $8,000.00Price range: $3,500.00 through $8,000.00
The prices are exclusive of taxes and shipping. The price may vary depending upon the miles and year of manufacturing.
SKU: NSN-RB25
Category: Used Engine
Tags: 2.5L inline 6 engine, Nissan performance engine, Nissan RB engine, RB series engine, RB25 engine, RB25 replacement engine, RB25DET engine, Skyline engine RB25, turbo RB25 engine, used RB25 engine
Brand: Nissan
Additional Information
| Brand | Nissan |
|---|---|
| Conditions | Remanufactured, Used |
| Miles | 70000-130000 |
| Year Compatibility | 1995–2002 |
| Verified | Tried & Tested |
| Warranty | Up to 3 Months |
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Specifications
The Nissan RB25 engine is a legendary 2.5L (2,498 cc) inline-six powerhouse engineered for performance, durability, and serious tuning potential. Built with a rugged cast-iron block and a lightweight aluminum alloy head, it features a DOHC 24-valve configuration that ensures excellent airflow and high-revving capability. The turbocharged RB25DET variant delivers an impressive 245–280 horsepower and up to 267 lb-ft of torque, offering strong, responsive acceleration.
Designed with advanced features like an intercooled turbo system and NVCS (variable cam timing), it provides a perfect balance of power and efficiency. The refined NEO version, famously featured in the Nissan Skyline R34, enhances performance further with improved head flow, stronger internals, and better fuel efficiency. Ideal for performance builds, engine swaps, or high-boost applications, the RB25 remains a top choice for enthusiasts seeking reliability and tenability in one iconic package.
Engine Variants
RB25DE (Non-Turbo)
The Nissan RB25DE is the naturally aspirated version of the RB25, delivering 180–200 hp (134–149 kW) at 6,000 rpm and 188 lb-ft (255 Nm) of torque at 4,000 rpm. With a higher 10:1 compression ratio, it offers smooth power delivery, strong mid-range performance, and improved fuel efficiency. Known for its reliability and linear throttle response, the RB25DE is a solid choice for daily driving and balanced performance builds.
RB25DET (Turbo – R33)
The Nissan RB25DET enhances performance with turbocharging, producing around 245–250 hp (183–186 kW) and 235 lb-ft (319 Nm) of torque with a 9:1 compression ratio. Found in models like the Nissan Skyline R33, it offers strong acceleration and excellent tuning potential. Its combination of boost capability and durable construction makes it a favorite among enthusiasts seeking reliable high-performance gains.
RB25DET NEO (Turbo – R34)
The Nissan RB25DET NEO represents the most refined evolution, producing 276 hp (206 kW) at 6,400 rpm and 267 lb-ft (362 Nm) of torque at 3,200 rpm. Featured in the Nissan Skyline R34 it includes upgrades like solid lifters, improved porting, top-feed injectors, and stronger rods similar to the RB26. These enhancements improve efficiency, responsiveness, and high-RPM stability, making it ideal for both performance driving and advanced tuning setups.
Frequently Asked Questions
What vehicles use the RB25 engine?
The RB25 engine is commonly found in Nissan Skyline R33 and R34 models, as well as Laurel and Stagea.
What is the difference between RB25DE and RB25DET?
The RB25DE is naturally aspirated, while the RB25DET includes a turbocharger for higher performance.
Is the RB25 engine reliable?
Yes, it is known for durability, especially due to its strong cast-iron block.
How much power can the RB25 engine handle?
With proper upgrades, it can handle 400–600+ horsepower depending on the build.
Is the RB25 engine good for swaps?
Yes, it is one of the most popular engines for RWD swaps and performance builds worldwide.
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