Engine Crankshaft
Engine Crankshaft
The Subaru EJ25 is a legendary 2.5-liter horizontally opposed four-cylinder (Boxer) engine from the EJ family. It is widely used in performance models such as the Impreza WRX and STI,
as well as Forester, Legacy and Outback. The engine features an aluminum block and heads, DOHC or SOHC valvetrain, and a timing belt drive. The EJ25 is highly regarded for its
distinctive Boxer sound, strong low-end torque and excellent tuning potential, especially in turbocharged form (EJ255 / EJ257).
This crankshaft is a critical rotating assembly component that converts the reciprocating motion of the pistons into rotational power. The OEM design uses a high-strength steel construction
with rear thrust configuration and nitride/induction-hardened journals for improved wear resistance. It is engineered to factory dimensional standards and is also widely used
as a foundation for performance and stroker builds.
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
Product Name: Subaru EJ25 Engine Crankshaft
Engine Family: Subaru EJ25
Displacement: 2,457 cc / 2.5L
Cylinder Configuration: Horizontally Opposed Four-Cylinder / Boxer-4
Fuel Type: Petrol / Gasoline
Aspiration: Naturally Aspirated or Turbocharged, depending on the engine version
Valve Train: SOHC or DOHC, depending on the engine version
Bore × Stroke: Approximately 99.5 × 79.0 mm for common EJ25 configurations
Part Type: Engine Crankshaft Assembly
Material: Forged 4340 Steel / Micro-alloy Forged Stee
Product Condition: Remanufactured
The specifications above describe the EJ25 engine family. For installation and engine rebuilding, use the applicable service manual and
the dimensional inspection data for the actual crankshaft.
The EJ25 engine family has been used in selected Subaru vehicles, including:
Subaru Impreza — selected 2.5L applications
Subaru Impreza WRX — selected EJ25 turbo applications
Subaru Impreza WRX STI — selected EJ25 turbo applications
Subaru Forester — selected 2.5L applications
Subaru Forester XT — selected turbo applications
Subaru Forester STI — selected market-specific applications
Subaru Legacy — selected 2.5L applications
Subaru Legacy GT — selected turbo applications
Subaru Outback — selected 2.5L applications
Subaru Baja — selected 2.5L applications
Important Fitment Notice: This list is provided for reference only. It does not mean that one crankshaft fits every vehicle listed.
The EJ25D, EJ251, EJ253, EJ255 and EJ257 are different engine variants. Their crankshaft specifications and OE references must not be assumed to be interchangeable.
Please provide the complete engine code, original OE number, vehicle model, production year and VIN where available to help confirm compatibility.
Subaru parts catalogs list different crankshaft assembly numbers for specific vehicle and engine applications. Reference numbers include:
12200AA330
12200AA430
12200AA190
12200AA260
12200AA370
12200AA30A
These are catalog references, not a universal interchange list. Some numbers appear in replacement or supersession records, and their applicability depends on the original Subaru parts catalog and vehicle configuration.
Before placing an order, please confirm the OE number against the actual crankshaft and the target vehicle application.
If you have an original part label, VIN, engine identification details or a sample crankshaft, please share the information for verification.
We support professional buyers in the automotive aftermarket, including:
Engine rebuilding workshops
Engine remanufacturing companies
Automotive parts wholesalers
Importers and distributors
Vehicle repair chains
Automotive parts trading companies
Professional engine service providers
For wholesale and repeat-order projects, please provide the required engine version, OE number, target quantity and destination market.
Product availability, specifications, lead time, minimum order quantity and commercial terms should be confirmed for the selected item.
Packaging and shipping arrangements should be confirmed according to the product condition, order quantity and destination.
Before dispatch, buyers are encouraged to confirm:
Product identification and labeling
Packaging requirements
Quantity and order references
Shipping method and destination
Export documentation requirements
Delivery schedule
Please contact us to discuss packaging and shipping requirements for your order.
Q1: Does this crankshaft fit every Subaru EJ25 engine?
No. EJ25D, EJ251, EJ253, EJ255 and EJ257 are different engine variants. Compatibility must be confirmed using the engine code, original OE number and vehicle application.
Q2: Which OE number should I provide when requesting a quotation?
Please provide the original crankshaft OE number if available. If it is unavailable, share the VIN, vehicle model, production year and complete engine code.
Q3: Can you support wholesale orders?
Please provide your required quantity, target engine application and destination market so that product availability and commercial terms can be reviewed.
Q4: What material is the crankshaft made from?
Material grade and manufacturing process depend on the actual product supplied. Please request the relevant product specification or supporting documentation before purchase.
Q5: Is the product new or remanufactured?
Product condition must be confirmed for the selected item. Please specify whether you require a new or remanufactured crankshaft when requesting a quotation.
Q6: What information is needed to confirm compatibility?
The most useful details are the original OE number, complete engine code, VIN, vehicle model, production year and drivetrain configuration.
Looking for a Subaru EJ25 engine crankshaft for replacement, engine rebuilding or wholesale distribution?
Please send us the following information to help us review your requirements:
Complete engine code
Original OE number
Vehicle model and production year
VIN, if available
Required quantity
Product condition required
Destination country
Special technical or packaging requirements
We can then review the application details and discuss product availability, specifications and quotation requirements.
Contact us today to verify your Subaru EJ25 crankshaft application and discuss your B2B sourcing requirements.
Subaru and the related vehicle model names are trademarks of their respective owners. Brand and model references are used solely to identify potential vehicle applications. This product page does not imply affiliation with or endorsement by the vehicle manufacturer.
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
