If you’re diving into an engine rebuild or just need to swap out those piston rings, the 901-8600 ARP 86.0mm Ring Compressor is a solid choice. I’ve used a few different compressors over the years, but this one really stands out.
First off, it’s made from aluminum, which keeps it lightweight but still tough enough to handle the job. The black anodized finish not only looks sleek, but it also adds a layer of durability that helps resist wear and tear. Trust me, you don’t want something that’s going to buckle under pressure, and this compressor feels like it can take a beating.
Now, I know some folks might be looking for something adjustable, but honestly, the fixed size on this one—86.0mm—means you’re getting a snug fit every time. It’s designed to hold those rings securely in place while you slide the piston into the cylinder, making the whole process way smoother. No more fumbling around or worrying about misalignment.
And just to be clear, this is sold individually, so if you need more than one, you’ll want to grab a couple. But for most projects, one of these will do the trick just fine.
In short, if you want a straightforward, reliable tool that gets the job done without any fuss, the 901-8600 ARP Ring Compressor is worth considering. It’s simple, effective, and built to last—just like your engine should be.
Other Part Numbers:
ARP Bolts #arp901-8600
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

ARP (Automotive Racing Products) was founded by Gary Holzapfel in 1968 when he noticed his drag-racing friends succumbing to bolt-induced engine failure as a result of poor-quality fasteners. He drew upon his expertise in the aerospace industry to develop a solution, which turned into a successful business nonetheless.
Since its inception, ARP has been engineering and perfecting a wide range of bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels, and transmissions. Today, ARP remains the undisputed world leader in automotive fasteners. Racing aficionados everywhere know and recognize the ARP brand and can vouch for its quality.
What Makes ARP Bolts So Special?Located in Ventura, California, all ARP processes from raw wire to finished fasteners are conducted in-house, right here in the USA. The company continually improves its processes with strict quality control guidelines and is dedicated to producing products that are second to none. Simply put, ARP Bolts are better than the competition because of their quality materials and advanced processes.
ARP prides itself on using only top-quality materials that are above the usual “aerospace-grade” quality that other manufacturers settle for. For example, while 8740 Chromoly steel has four different grades, ARP only uses the top two, SDF and CHQ. These grades cost twice as much as the lower commercial and aircraft grades, but deliver “zero defect” quality that you can trust each and every time.
ARP Bolts are built to withstand serious racing, possess greater tensile strengths, and can survive higher stress levels than most aircraft fasteners. ARP is dedicated to creating fasteners that boast ultimate strength and durability to ensure they last race after race. Its product lineup ranges from quality high-performance OEM parts to exotic specialty hardware for IndyCar, NASCAR, NHRA drag racing, Formula 1, and even marine applications.
Equip Your Ride with ARP Bolts at Vivid RacingIf you are looking to change the fasteners on your car, you’ve come to the right place. No other brand beats out ARP Bolts in terms of strength, quality, and race-proven success. Vivid Racing is, therefore, proud to carry an extensive lineup of products from American Racing Products like bolts, fluids, sealants, hand tools, stud kits, piston sleeves, wheel bolts, and more! If you have any questions regarding the parts above, please call our specialized sales team at (480) 966-3040.