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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Wiseco
Wiseco Professional Series Forged Pistons for BMW 325is/525i 1991-1995 M50B25 84.50mm Bore 8.8:1 CR (2.5L) KE115M845
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 1991-1995 BMW 325is, 525i, and 525iT (2.5L M50B25).
Wiseco Professional Series forged racing pistons are engineered for the extreme demands of turbocharged BMW M50B25 builds. Forged from high-tensile 2618 aluminum alloy in the USA, these pistons feature an 84.50mm bore (+0.50mm oversized) and an 8.8:1 compression ratio optimized for forced induction. Every piston is treated with Wiseco's proprietary ArmorGlide skirt coating to reduce friction, eliminate seizure risk, and ensure quieter operation during cold starts and high-RPM runs.
- Precision Forged: Machined from 2618 aluminum for superior strength in high-heat, high-pressure environments.
- Advanced Lubrication: Forced pin oiling ensures constant lubrication to the wrist pin for extended component life.
- Optimized Sealing: Features precision-machined ring grooves and an anti-detonation groove to improve ring seal and protect the top land.
- ArmorGlide Coating: Permanent skirt lubricant reduces drag and provides a protective barrier against cylinder wall wear.
- Complete Set: Includes premium rings and high-quality hardware for a professional-grade installation.
Specifications:
Manufacturer Part Number: KE115M845
Bore Size: 84.50mm (+0.50mm Oversized)
Compression Ratio: 8.8:1
Material: 2618 Forged Aluminum
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992 | BMW | 325is | Base |
| 1991-1995 | BMW | 525i | Base |
| 1993 | BMW | 525iT | Base |
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992 | BMW | 325is | Base |
| 1991-1995 | BMW | 525i | Base |
| 1993 | BMW | 525iT | Base |
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
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Sat: 9:00 am – 2:00 pm
Sun: Closed
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If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
Wiseco Professional Series Forged Pistons for BMW 325is/525i 1991-1995 M50B25 84.50mm Bore 8.8:1 CR (2.5L) KE115M845
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
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Share:
Fits select 1991-1995 BMW 325is, 525i, and 525iT (2.5L M50B25).
Wiseco Professional Series forged racing pistons are engineered for the extreme demands of turbocharged BMW M50B25 builds. Forged from high-tensile 2618 aluminum alloy in the USA, these pistons feature an 84.50mm bore (+0.50mm oversized) and an 8.8:1 compression ratio optimized for forced induction. Every piston is treated with Wiseco's proprietary ArmorGlide skirt coating to reduce friction, eliminate seizure risk, and ensure quieter operation during cold starts and high-RPM runs.
- Precision Forged: Machined from 2618 aluminum for superior strength in high-heat, high-pressure environments.
- Advanced Lubrication: Forced pin oiling ensures constant lubrication to the wrist pin for extended component life.
- Optimized Sealing: Features precision-machined ring grooves and an anti-detonation groove to improve ring seal and protect the top land.
- ArmorGlide Coating: Permanent skirt lubricant reduces drag and provides a protective barrier against cylinder wall wear.
- Complete Set: Includes premium rings and high-quality hardware for a professional-grade installation.
Specifications:
Manufacturer Part Number: KE115M845
Bore Size: 84.50mm (+0.50mm Oversized)
Compression Ratio: 8.8:1
Material: 2618 Forged Aluminum
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992 | BMW | 325is | Base |
| 1991-1995 | BMW | 525i | Base |
| 1993 | BMW | 525iT | Base |
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992 | BMW | 325is | Base |
| 1991-1995 | BMW | 525i | Base |
| 1993 | BMW | 525iT | Base |
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