Engine Crankshaft
Engine Crankshaft
The Subaru FB25 is a modern 2.5-liter horizontally opposed four-cylinder (Boxer) engine introduced as the successor to the long-running EJ25. It features an aluminum block with
cast-iron liners, aluminum cylinder heads, DOHC 16-valve design with Dual AVCS (Active Valve Control System), and a timing chain drive. Compared with the older EJ25,
the FB25 offers improved fuel efficiency, reduced internal friction and smoother operation while maintaining the distinctive Boxer character.
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 precision-machined journals. It is engineered to factory dimensional standards and is suitable for both standard remanufacturing and direct replacement applications.
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 FB25 Engine Crankshaft
Engine Family: Subaru FB Series
Engine Code: FB25
Displacement: 2,498 cc / 2.5L
Cylinder Configuration: Horizontally Opposed Four-Cylinder / Boxer-4
Valve Train: DOHC, 16 valves
Bore × Stroke: 94 × 90 mm
Fuel Type: Petrol / Gasoline
Part Type: Engine Crankshaft Assembly
Material: Forged Steel
Product Condition: Remanufactured
The specifications above describe common FB25 configurations. Detailed crankshaft dimensions, journal tolerances and service limits must be checked against the
applicable service manual and the actual product inspection data.
The FB25 engine family has been used in selected Subaru vehicles, including:
Subaru Forester 2.5L — selected model years
Subaru Outback 2.5L — selected model years
Subaru Legacy 2.5L — selected model years
Subaru Crosstrek 2.5L — selected market-specific applications
Different generations may use different FB25 variants. Earlier FB25B and later FB25D applications should be verified separately.
Important Fitment Notice: This application list is provided for reference only. It does not mean that one crankshaft fits every vehicle listed.
Compatibility may vary by engine code, production date, vehicle market, drivetrain configuration and original part number.
Please provide the complete engine code, original OE number, vehicle model, production year and VIN where available to help confirm the correct application.
Reference crankshaft numbers associated with selected Subaru FB-series applications include:
12200AA440 (12200-AA440)
12200AA480 (12200-AA480)
12200AA481 (12200-AA481)
12200AA510 (12200-AA510)
12200AA530 (12200-AA530)
12200AA531 (12200-AA531)
These numbers are catalog references and should not be treated as a universal interchange list. Their applicability depends on the specific vehicle, engine version and original Subaru parts catalog.
Before ordering, please confirm the original OE number against the actual crankshaft and the target vehicle application.
If the original part number is unavailable, please provide the VIN, engine code, vehicle model and production year for application verification.
The crankshaft is one of the primary rotating components inside an internal combustion engine. Its main functions include:
Converting piston movement into rotational output.
Transmitting engine torque to the flywheel or related drivetrain components.
Supporting stable rotation through the main journals and connecting-rod journals.
Working with the lubrication system to maintain the required oil film.
Contributing to the mechanical balance and operating stability of the engine.
During engine rebuilding, the crankshaft, bearings, connecting rods, oil passages and related components should be inspected according to the applicable service procedures.
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, minimum order quantity, lead time 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 FB25 engine?
No. Compatibility must be confirmed by the complete engine code, original OE number and vehicle application. FB25B and FB25D applications should be checked separately.
Q2: Can the FB25 crankshaft be used in an FB20 engine?
Do not assume interchangeability based only on the shared FB engine family. Verify the original OE number, engine version and actual dimensions before ordering.
Q3: 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.
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: Can you support wholesale orders?
Please provide the required quantity, target engine application and destination market so that product availability and commercial terms can be reviewed.
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 FB25 engine crankshaft for replacement, engine rebuilding or wholesale distribution?
Please send us the following information to help us review your requirements:
Complete engine code, such as FB25B or FB25D
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 FB25 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.
