If you're diving into a project with your Chrysler Hemi 5.7 or 6.1L, you know that every little detail counts, especially when it comes to the rear main seal plate. That's where the ARP Chrysler Hemi 5.7/6.1L 12pt Rear Main Seal Plate Bolt Kit comes into play. This isn’t just any bolt kit; it’s crafted for those who want reliability and performance under the hood.
First off, let’s talk about the material. These bolts are made from 8740 chromoly, which is a step above your standard fasteners. This stuff is tough—seriously tough. With a yield strength of 180,000 psi, you can trust that these bolts will hold up against the stresses of high-performance driving. Plus, they come with a black oxide finish, which not only looks slick but also adds a layer of protection against corrosion.
One of the best parts? This kit comes with washers included, so you don’t have to hunt down extra parts when you’re in the thick of your build. And the 12-point fastener head style means you’ll have a solid grip when you’re tightening things down, making it easier to get that perfect torque without stripping anything. It’s all about making your life easier while ensuring everything stays secure.
So if you’re gearing up for a rebuild or just need to replace some worn-out hardware, this kit is sold as a complete set, giving you everything you need to get the job done right. Trust me, investing in quality fasteners like these can make all the difference in the long run. Your engine deserves the best, and these ARP bolts are definitely a step in the right direction.
Other Part Numbers:
ARP Bolts #arp140-0001
⚠ 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.