CP Pistons 9310 Steel Chamfered Wrist Pin (per piston) 866-2250-25CP3C
SKU: 11579286513

CP Pistons 9310 Steel Chamfered Wrist Pin (per piston) 866-2250-25CP3C

Sale price$45.90 Regular price$51.00
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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For Your Every Summer RSVP, with Code: SUMMER15

Description

CP Pistons 9310 Steel Chamfered Wrist Pin (per piston) 866-2250-25CP3CThese high quality Pins are ISO 9000 and QS 9000 certified and statistical process control (SPC) is fully implemented throughout manufacturing. Features 100% Rockwell tested Case hardened (computerized gas process) Gun drilled I. D.s with 3 stages of I. D. honing Weight tolerances + 1 gram Precision ground ends with I. D. radius Straight wall design to reduce pin galling on ends Available with chamfered ends for Wire Locks Cryogenically treated

These high quality Pins are ISO 9000 and QS 9000 certified and statistical process control (SPC) is fully implemented throughout manufacturing.

Features

  • 100% Rockwell tested
  • Case hardened (computerized gas process)
  • Gun drilled I.D.’s with 3 stages of I.D. honing
  • Weight tolerances +/- 1 gram
  • Precision ground ends with I.D. radius
  • Straight wall design to reduce pin galling on ends
  • Available with chamfered ends for Wire Locks
  • Cryogenically treated (subzero heat-treating process) for improved material strength and grain structure

Heavy Duty Piston Wrist Pin

Length: 2.250"

Type Use with Wire Locks / CHAMFERRED END

Material: 9310 Steel

Wrist Pin Dia: .866"

Wall Thickness: .250"

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: 11579286513

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4.4 ★★★★★
Based on 292 reviews
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Verified Purchase
H E RObbins
Birmingham, US
★★★★★ 5
Appreciate these in extra long length
Size: X-Large, Color: (001) Black / Black / White
Love that these come in XXL length.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
E
Verified Purchase
Eric Brockman
Waukegan, US
★★★★★ 5
Real comfort.
Size: Large, Color: (001) Black / Black / Pitch Gray
Second purchase. Good workout sock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
M
Verified Purchase
Mother of M.M.
Charlottesville, US
★★★★★ 5
Very nice
Size: Large, Color: (100) White / White / Pitch Gray
I just received these for my son. They are very nice and look sturdy, but he hasn't worn them yet, so I cannot speak to how well they hold up in the wash or when worn. They appear to be the right size and look stretchy, but not the kind of stretchy that feels super tight on the foot (which I don't like). If they wear unusually well or poorly, I will come back and edit this.
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Reviewed in the United States on December 26, 2025
N
Verified Purchase
Noah
West Palm Beach, US
★★★★★ 5
MY FAVORITE SOCKS
Size: Large, Color: (001) Black / Black / Pitch Gray
I bought these originally at my local UA store and had to buy more. They are my favorite daily wear.
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Reviewed in the United States on February 25, 2026
S
Verified Purchase
SD-out
Los Angeles, US
★★★★★ 4
A sock with real support and thickness!
Size: Large, Color: (001) Black / Black / Pitch Gray
I’m pretty happy with these. It seems like sock manufacturing changed 10-15 years ago, and it’s become hard to find pairs that are actually thick and durable. I bought these for an event where I knew I’d be on my feet all day, and they did not disappoint. They provided excellent support throughout the day, even while wearing shoes that typically make my feet ache after just a couple of hours. Glad to finally find a pair that feels well-made.
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Reviewed in the United States on April 10, 2026

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