ACL Mitsubishi 4G63/4G64 7-Bolt 0.25mm Oversized Main Bearing Set — Fits 2nd Gen DSM & EVO I-IV

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SKU: ACL5M1186H-.25

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About ACL

ACL engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACL lineup with fast shipping and expert fitment support — order with confidence.

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ACL 4G63/4G64 7-Bolt 0.25mm Oversized Main Bearings

For 7-bolt 4G63 and 4G64 engines that have undergone significant crankshaft machining, the ACL 0.25mm oversized main bearing set provides the necessary tolerance adjustment for a perfect engine build. These bearings are designed for 2nd Gen DSM and Mitsubishi Evolution owners who demand high-performance reliability and precision engineering in every component of their engine.

Technical Specifications

  • Oversized Precision: Specifically engineered for 0.25mm oversized crankshaft journals.
  • Robust Construction: Durable multi-layer design to withstand high-boost and high-RPM environments.
  • Consistent Lubrication: Optimized oil distribution channels to prevent hot spots and bearing seizure.
  • Wear Resistance: Advanced surface treatments reduce friction and extend the life of your engine internals.

A successful engine build relies on the quality of the internal components. These ACL bearings are manufactured to the highest standards, ensuring that your 7-bolt engine can handle the increased power and torque of your modifications. By providing a precise fit for machined crankshafts, these bearings help maintain the integrity of your oil system and protect your engine from premature failure. Whether you are building a daily driver or a dedicated track car, these bearings are an essential upgrade. Find the best performance parts for your Mitsubishi at GGCRACING.

About ACL

ACL engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACL lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

ACL 4G63/4G64 7-Bolt 0.25mm Oversized Main Bearings

For 7-bolt 4G63 and 4G64 engines that have undergone significant crankshaft machining, the ACL 0.25mm oversized main bearing set provides the necessary tolerance adjustment for a perfect engine build. These bearings are designed for 2nd Gen DSM and Mitsubishi Evolution owners who demand high-performance reliability and precision engineering in every component of their engine.

Technical Specifications

  • Oversized Precision: Specifically engineered for 0.25mm oversized crankshaft journals.
  • Robust Construction: Durable multi-layer design to withstand high-boost and high-RPM environments.
  • Consistent Lubrication: Optimized oil distribution channels to prevent hot spots and bearing seizure.
  • Wear Resistance: Advanced surface treatments reduce friction and extend the life of your engine internals.

A successful engine build relies on the quality of the internal components. These ACL bearings are manufactured to the highest standards, ensuring that your 7-bolt engine can handle the increased power and torque of your modifications. By providing a precise fit for machined crankshafts, these bearings help maintain the integrity of your oil system and protect your engine from premature failure. Whether you are building a daily driver or a dedicated track car, these bearings are an essential upgrade. Find the best performance parts for your Mitsubishi at GGCRACING.

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