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Used Engines
BMW 525i 2.5L 2.5L Engine (2003)
$1,625.00
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Categories: Used Engines
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- Description
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Restore Your BMW 525i with a 2.5L Engine 2003, RWD
Bring back the legendary smoothness of your 2003 BMW 525i (E39 chassis, RWD) with our BMW M54B25 2.5L inline-6 engine. This naturally aspirated powerplant delivers 184 HP of refined BMW performance perfect for replacing a worn engine or restoring your classic 5 Series to its original driving character.
Engine Details:
| Category | Specifications |
|---|---|
| Displacement | 2.5L Inline-6 |
| Engine Code | M54B25 |
| Horsepower | 184 HP @ 6,000 RPM |
| Torque | 175 lb-ft @ 3,500 RPM |
| Fuel System | Sequential Multi-Port Fuel Injection |
| Valvetrain | Double-VANOS (Variable Valve Timing) |
| Block Material | Aluminum with Nickel-Silicon Coating |
Compatibility:
2003 BMW 525i (E39 chassis, RWD only)
Must verify:
-
7th VIN digit = confirms M54 engine
-
No xDrive badging or components
-
"M54B25" casting mark on engine block
Why Choose This Engine?
Classic BMW Smoothness – 184 HP inline-6 with silky power delivery
Advanced Engineering – Double-VANOS for optimal performance at all RPMs
Lightweight & Durable – Aluminum block with wear-resistant nickel-coated cylinders
Proven Reliability – DISA intake manifold enhances torque efficiency
Pricing Options:
We price based on mileage to fit your needs:
30,000 to 60,000 Miles
Price: $1,625.00
Best value for money for moderately used engines.
60,000 to 90,000 Miles
Price: $1,267.00
Ideal for budget-conscious customers who need a good engine with slightly used mileage.
90,000 to 120,000 Miles
Price: $1,040.00
A budget-friendly choice for consumers who value the functionality and price.
120,000 to 150,000 Miles
Price: $833.30
Budget-friendly choice for restoration projects or short-term use.
Shipping information:
Weight: 320 lbs (crated)
Dimensions: 35" L × 27" W × 29" H
Shipping Options:
Standard Shipping: Available for shipping within the continental U.S.
Expedited Shipping: The shipping can be expedited for an additional charge.
Frequently Asked Questions:
Q: Does the engine come with a warranty?
A: Yes! All our engines include a 60-day warranty covering manufacturing defects.
Q: How does this differ from the 3.0L M54B30?
A: The M54B25 (2.5L) has slightly less power (184 HP vs. 215 HP) but retains the same smoothness and reliability.
Q: What if the engine doesn’t fit my car?
A: We offer a 60-day return policy if the engine is not VIN-compatible—just contact us for assistance.
Ready to Restore Your 525i?
Bring back the classic driving experience of your BMW 525i with a genuine M54B25 2.5L engine. Whether you're restoring a beloved E39 or need a reliable replacement, this engine delivers BMW’s signature performance.
Fit Notes:
525i 2.5L 2003
If for any valid reason you are not completely satisfied with your purchase, you may return any item in its original condition within 60 days of receipt and we will gladly provide a complete refund, replacement, or an exchange.
All orders can be returned for a full refund within 60 days of receipt.
For establishments with a forklift and access for an 18-wheeler, the shipping fee is $250. For establishments without a forklift and access for an 18-wheeler, the shipping fee is $400.
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