ARP 82.5mm Tapered Piston Ring Compressor Tool — Professional Engine Building

SKU: ARP901-8250
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About ARP ARP (Automotive Racing Products) makes the strongest fasteners ...Read More

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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 ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Professional Piston Installation

The ARP 82.5mm Tapered Piston Ring Compressor is the ultimate tool for engine builders who demand precision. When installing pistons into an 82.5mm bore, standard compressors often lead to pinched rings or uneven seating. ARP’s tapered sleeve design solves this by gradually compressing the rings to the exact bore diameter, allowing the piston to glide smoothly into the cylinder without the risk of snagging.

Why Choose ARP Tapered Compressors?

  • Exact Fitment: Specifically machined for 82.5mm bore applications, ensuring zero clearance issues.
  • Superior Material Quality: Built for longevity and repeated use in high-performance engine shops.
  • Reduced Risk: Prevents common installation errors that can lead to catastrophic engine failure.
  • Smooth Operation: The high-quality finish reduces friction, making the installation process effortless.

Engine assembly is a critical step where even a small mistake can compromise the entire project. By utilizing the ARP 82.5mm compressor, you ensure that your rings remain perfectly aligned throughout the transition from the compressor to the cylinder bore. This tool is a staple for builders working on high-performance street engines and dedicated race powerplants. Its robust construction ensures it will remain a reliable part of your toolkit for years to come. For all your high-performance engine building needs, rely on the expert selection available at GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Professional Piston Installation

The ARP 82.5mm Tapered Piston Ring Compressor is the ultimate tool for engine builders who demand precision. When installing pistons into an 82.5mm bore, standard compressors often lead to pinched rings or uneven seating. ARP’s tapered sleeve design solves this by gradually compressing the rings to the exact bore diameter, allowing the piston to glide smoothly into the cylinder without the risk of snagging.

Why Choose ARP Tapered Compressors?

  • Exact Fitment: Specifically machined for 82.5mm bore applications, ensuring zero clearance issues.
  • Superior Material Quality: Built for longevity and repeated use in high-performance engine shops.
  • Reduced Risk: Prevents common installation errors that can lead to catastrophic engine failure.
  • Smooth Operation: The high-quality finish reduces friction, making the installation process effortless.

Engine assembly is a critical step where even a small mistake can compromise the entire project. By utilizing the ARP 82.5mm compressor, you ensure that your rings remain perfectly aligned throughout the transition from the compressor to the cylinder bore. This tool is a staple for builders working on high-performance street engines and dedicated race powerplants. Its robust construction ensures it will remain a reliable part of your toolkit for years to come. For all your high-performance engine building needs, rely on the expert selection available at GGCRACING.

Product Details

Product Description

About ARP

ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.

Watch in action

Professional Piston Installation

The ARP 82.5mm Tapered Piston Ring Compressor is the ultimate tool for engine builders who demand precision. When installing pistons into an 82.5mm bore, standard compressors often lead to pinched rings or uneven seating. ARP’s tapered sleeve design solves this by gradually compressing the rings to the exact bore diameter, allowing the piston to glide smoothly into the cylinder without the risk of snagging.

Why Choose ARP Tapered Compressors?

  • Exact Fitment: Specifically machined for 82.5mm bore applications, ensuring zero clearance issues.
  • Superior Material Quality: Built for longevity and repeated use in high-performance engine shops.
  • Reduced Risk: Prevents common installation errors that can lead to catastrophic engine failure.
  • Smooth Operation: The high-quality finish reduces friction, making the installation process effortless.

Engine assembly is a critical step where even a small mistake can compromise the entire project. By utilizing the ARP 82.5mm compressor, you ensure that your rings remain perfectly aligned throughout the transition from the compressor to the cylinder bore. This tool is a staple for builders working on high-performance street engines and dedicated race powerplants. Its robust construction ensures it will remain a reliable part of your toolkit for years to come. For all your high-performance engine building needs, rely on the expert selection available at GGCRACING.

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