SKU: 22435427635

Polaris RZR Turbo R, Pro XP, XP Turbo/S XR Series EVP Head Stud Kit

Sale price$162.00 Regular price$180.00
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Polaris RZR Turbo R, Pro XP, XP Turbo/S XR Series EVP Head Stud KitPrevent premature head gasket failure on big power engines with industry leading cylinder head stud kits! ARP2000 alloy steel is heat treated at a higher level, producing far superior strength material than 8740 despite sharing similar characteristics. ARP2000 can achieve a clamp load at 220,000 psi, reduce stress corrosion and hydrogen embrittlement, and thus is used widely in short track and drag racing applications as an upgrade from 8740 chromoly.

Prevent premature head gasket failure on big power engines with industry leading cylinder head stud kits!

ARP2000 alloy steel is heat-treated at a higher level, producing far superior strength material than 8740 despite sharing similar characteristics. ARP2000 can achieve a clamp load at 220,000 psi, reduce stress corrosion and hydrogen embrittlement, and thus is used widely in short track and drag racing applications as an upgrade from 8740 chromoly. Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly

aligned – something that won’t happen with inferior quality head studs.

ARP2000 alloy typically exceeds the clamping force of ~2mm larger 8470 chromoly fastener in a smaller package. For the XP Turbo/Pro XP engine where there is not much material in the block to enlarge the stud significantly, these 11mm ARP2000 studs are the ideal solution. 

Why the EVP XR Series ARP2000 studs are superior to other studs on the market:

  • The 11mm (stock) OD is the ideal size to maximize clamping force without sacrificing block integrity
  • Made from ARP2000 alloy that has superior fatigue cycle life, tensile strength and toughness and is rated to 220,000 psi tensile strength. For comparison, a typical 8470 chromoly stud is roughly 170,000 psi.
  • Machined ball end allows the stud to bottom out in the case without losing any thread engagement.
  • Includes head studs, nuts, and washers for the ultimate direct replacement head stud kit
Instructions:
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 22435427635

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4.9 ★★★★★
Based on 16 reviews
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Verified Purchase
Clinton Queen
Louisville, US
★★★★★ 5
Great product for plant workers
Style: 220 Lumens
Works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 4, 2025
K
Verified Purchase
Karen T. Duncan
Port Orchard, US
★★★★★ 4
Good light. Minor flaws.
Style: 180 Lumens
Good light, only flaws is that it didn't come in a box. It was just in a clear plastic bag. And batteries were not included.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 22, 2024
G
Verified Purchase
Glen B.
Alexandria, US
★★★★★ 5
Puts out a lot of light!
Style: 220 Lumens
I had to have an explosion proof light, and this one puts out an amazing amount of light! On flood light ( second push of button) it lights up an amazing amount of area around you. The spotlight will hit a tree in my back yard while standing in the front yard. Very impressive!
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Reviewed in the United States on February 21, 2026
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Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 5
Intrinsically safe
Style: 250 Lumens
Works great and is hazardous environment safe
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Reviewed in the United States on July 14, 2025
K
Verified Purchase
Krylos
Lake Worth, US
★★★★★ 5
Very useful if you don't want to explode!
Style: 90 Lumens
Found the unit a bit difficult to adjust on the hard hat but got it dial in eventually. Also impacted by the need to mount goggles on the helmet, that might be rare, but this was my situation working around chemicals. nice and bright. batteries last a couple of days with intermittent use approx. 3.5hrs a day. A bit of a pain to unscrew the cover on batteries but that's the nature of the beast to make sure no sparks escape. Would highly recommend the product. Most other comparable products are around double the price. BTW, the packaging looked like the driver dropped it on the road and ran over it a couple times...but it still worked. UPDATE #1: After a few months of usage, the height adjustment is starting to fail. As I walk, the light begins to droop until it's shining down in front of me. Dissappointed that the adjustment didn't last longer. I might be able to discover a way to lock it back in, but have not taken the time to examine the mechanism yet. UPDATE #2 9-2018: The adjustment problem has now reach its ultimate end. The hinge on bottom has basically disintegrated. Now, when I put batteries in and tighten the screw, the bottom hinge pops loose. The product is no longer usable. The hinge is just cheap plastic, that is a shame, I kind of expected better from nightstick. However, it still seems to be the best option vs. price available so I am planning to order it again. Hope I can get 3 years of intermittent use out of the next one. I do really like it when it is working...lite and bright.
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Reviewed in the United States on November 6, 2015

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