k gear 4 Piston K-Series Adjustable Cam Gear (SINGLE GEAR) – 4 Piston Racing
SKU: 19670829437
k gear

k gear 4 Piston K-Series Adjustable Cam Gear (SINGLE GEAR) – 4 Piston Racing

Sale price$22.29 Regular price$24.77
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 2 - Jul 7

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

k gear 4 Piston K-Series Adjustable Cam Gear (SINGLE GEAR) – 4 Piston Racing4 Piston K Series Cam Gears are THE highest quality gears on the market, with an innovative design to help you during the cam degree process. Not only can they be used in the same manner as a traditional cam gear, they also feature alignment holes with an alignment tool that allows you to move it an exact number of degrees, put the pin in to align it, then tighten the bolts. If you want to advance 2 degrees, move the gear 2 on the face, slide the pin

4 Piston K-Series Cam Gears are THE highest quality gears on the market, with an innovative design to help you during the cam degree process. Not only can they be used in the same manner as a traditional cam gear, they also feature alignment holes with an alignment tool that allows you to move it an exact number of degrees, put the pin in to align it, then tighten the bolts. If you want to advance 2 degrees, move the gear 2 on the face, slide the pin in, and it will move exactly 2 degrees. Not only does this save you time during the cam degree process, you can also offer your customers different settings for their cam centerlines with simple instructions to move to a specific pin location, slide the alignment pin in, and tighten the gears down. It removes any margin of human error and ensures that they get their valve timing events exactly where you asked them to be.

Why are 4P Gears Better?

  • ARP fasteners that are larger for increased holding strength
  • 175 grams lighter than competitive offerings, but with stronger materials and design
  • Innovative cam degree system where the markings actually mean something
  • MADE IN THE USA, with USA Billet Steel
  • Available as a Single -or- as a Pair

Email [email protected] for international shipping and inquiries.

 

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: 19670829437

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4.7 ★★★★★
Based on 975 reviews
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Verified Purchase
kaylaj13
Belleville, US
★★★★★ 5
Amazing fit!!!
Color: Multicolor a (5-pack), Size: Large
These are quite literally the best underwear I have ever worn. I am going to replace all of my underwear with just these. I got the shorter boy shorts cut and they are amazing. These let my body be the shape that my body is, no squeezing or tight waist band. I feel so normal and comfortable in them, they’re breathable and soft!! I absolutely love them after so much trial and error with underwear I finally found the ones!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
T
Verified Purchase
Taylor
Draper, US
★★★★★ 5
Highly recommend during pregnancy and to wear around the house!
Color: Multicolor a (5-pack), Size: X-Large
Love!! I’m currently 33 weeks pregnant. I’m 5’6” and pre pregnancy weight I would fluctuate between 132-140 lbs easily. I now weigh 162 lbs and my hip is now measuring 40 inches. I bought the XL in the dark grey/black so that it wouldn’t be tight at all around my belly and I absolutely love them! Stretchy, comfortable, breathable. They aren’t loose around my thighs and I can tell they are gonna be nice to wear during post partum. I wear them around the house with an open robe and a bralette for the ultimate comfort. If I were to buy them before pregnancy, I’m positive that a large would have fit beautifully, even though the small/medium measurements on the size chart would have been my pre pregnancy weight, I know they would have been too tight. I detest tight underwear! Highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
A
Verified Purchase
Antoinette
Pawtucket, US
★★★★★ 5
Cute and Comfy
Color: Multicolor B (5-pack), Size: Medium
These are cute and comfy with a great fit. True to size they are cool and comfortable for everyday wear. I was going to order more but the price went up so I'm just waiting for it to go back down to order again.
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Reviewed in the United States on May 18, 2026
L
Verified Purchase
LAN
Grantham, US
★★★★★ 3
Not what I’d hoped
Color: Multicolor a (5-pack), Size: Small
The fabric is nice, soft without being overly bulky. The design was almost what I wanted. I’ve been trying to find underwear that won’t ride up and is comfortable to wear under leggings. The fabric has a LOT of stretch around the legs and deforms quickly. Then it rides up and wrinkles. Smaller leg openings might make the difference.
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Reviewed in the United States on April 1, 2026
H
Verified Purchase
Hailey Terzich
Lake Worth, US
★★★★★ 4
Great & Comfortable
Color: Multicolor B (5-pack), Size: X-Large, Color: Multicolor B (5-pack), Size: X-Large
I have bought 2 packs of this underwear. I love wearing them. They are very comfortable, and the size fits perfectly. I like most of the colors. The Bamboo Cool lettering on the front does come off after washing though. Otherwise the underwear has been great to wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026

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