SKU: 86290596039

APR Valve Springs/Seats/Retainers - Set of 16

Sale price$355.50 Regular price$395.00
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Description

APR Valve Springs/Seats/Retainers - Set of 16The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer

The APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer than the high performance OEM Golf R setup and is proven to eliminate the OEM valve train's weakest link. We call it Performance Without Compromise!

Valve Springs:
Weight reduction, and not necessary stiffness, is absolutely necessary to increasing valve control. The APR Valve Spring utilizes a beehive design that allows for a reduction in mass in not only the spring itself, but also through use of a smaller titanium retainer. The springs feature an ovate wire design that allows for even stress distribution resulting in better control at high RPMs through a resistance of harmful valve float inducing harmonics. The lightweight design also accomplishes accurate valve control without requiring an overly stiff spring which has been proven to snap OEM valves in half. Each valve spring weights 29 grams and represents a 19% weight reduction over the OEM Golf R spring. The result is a highly engineered design that's simply plug and play!

Valve Spring Retainers:
Through the use of a beehive design, APR's Engineers were able to design and supply a valve spring retainer that's smaller than stock to reduce weight as much as possible. In an effort to offer extreme weight savings, at an additional 71% over the OEM Golf R retainers, American 6AL4V titanium was used for its high specific strength weighing in at only 2 grams each. By offering outstanding weight savings, exceptional valve control characteristic are achieved while only requiring a modest 20% increase in stiffness over the OEM Golf R spring.

Valve Spring Seats:
Often an overlooked piece of an upgraded valve train is the valve spring seat. The factory heads are aluminum, and unfortunately increased spring pressure can distort or erode the mating surface overtime as they mate directly to the bare head. To prevent this from happening, APR's Engineers designed valve spring seats out of 4140 heat-treated chrome molly steel with a black oxide coating. The spring seats are strong enough to withstand pressure from the springs and provide a mating surface that evenly distributes spring load across a larger area than the spring it self, allowing an increased spring rate without negative side effects to the aluminum head.

Eliminating Valve Float:
It's not uncommon to experience valve float with the OEM valve springs, even below the OEM rev limit. On some applications like the 2.0 TSI, back pressure from the K04 turbocharger has been known to force the exhaust valves open. This has been noticed on vehicles with overly weak OEM valve springs and some with higher miles that have simply lost their stiffness over time. This issue accompanies misfires commonly above 5000 RPM. In some extreme cases, valves are forced open and the vehicle ceases accelerating any further. A quick datalog of intake mass airflow and boost pressure at wide open throttle will show a sudden rise in boost pressure with an immediate loss of airflow as pressure from the open valves is pushed back into the intake manifold. On other applications, valve float can begin to occur just beyond the OEM rev limit. While other components, such as higher strength valves are often required for extremely high revving applications, the APR Valve Spring System will eliminate float well beyond the revving constraints set forth by the other components.

Features:

  • Increase valve train control
  • 71% weight reduction over OEM Golf R retainers
  • 19% weight reduction over OEM Golf R springs
  • 20% stiffness increase over OEM Golf R springs
  • Eradicates TSI K04 "valve float" issues
  • Supports higher revving application
  • Weight saving beehive spring design
  • ASTM A877A OTSC round wire steel springs
  • 6AL4V American titanium retainers
  • 4140 heat-treated chrome molly steel spring seats with black oxide coating
  • 29 grams per spring
  • 2 grams per retainer
  • Compatible with OEM valves
  • Spring seats included to protects against aluminum erosion in the head

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: 86290596039

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Jadyn Gore
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Reviewed in the United States on May 21, 2026
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Janet Eriksson
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★★★★★ 5
Durable chew toy that keeps my puppy engaged
Size: X-Small, Color: Tangerine, Size: X-Small, Color: Tangerine
My dog went crazy for this toy the second I gave it to him. He is an 8-month-old 7.5 pound Yorkie puppy, an aggressive chewer on the tail end of teething. He has shown no mercy to this toy and yet there’s not a dent in it. That’s why I got it because the material holds up to aggressive chewing. My puppy has confirmed that! It keeps him entertained for a long time. It’s small enough to fit in his mouth for chewing but not so small that he would choke. He loves to sit on the couch but is too young to jump off. This toy keeps him entertained on the couch for a long time so he stays put. He is totally focused on the toy. It is the perfect toy for a bored chewer. Works really well. And it’s super easy to clean. Because it’s such a small toy, I’m only letting him use it when I’m nearby to supervise. But it has really held up to those busy teeth and Yorkie jaw. It’s hard to find a durable toy that also holds his interest. This seems to check all the boxes. I didn’t even have to coat it with a treat taste to draw his interest. I think the bone shape is very functional and attractive for him. He can go a solid 30 minutes chewing on it without getting bored or distracted, and that’s a long time for a Yorkie puppy. I got this toy because I noticed he wanted to chew, but I was tired of other toys that came apart. This one seems like the right durable choice.
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Reviewed in the United States on January 17, 2026
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Pam
Phoenix, US
★★★★★ 5
Best it for dogs that destroy all other toys
Size: Large, Color: Granny Smith
We bought his it for our dog in 2020 when we rescued her. She has literally destroyed every single toy she has within minutes of giving them to her, but not this toy. It has lasted almost 6 years. It finally started to tear in the center so we bought her another one. Honestly it probably broke from my kids playing tug of war with her and they toy and that’s not really what it’s designed for. I’d rate this a 10/10. It’s quality but no so hard she’ll hurt her teeth.
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Reviewed in the United States on April 17, 2026
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Christina
Battle Creek, US
★★★★★ 5
Finally an all-purpose toy that doesn’t fall apart!
I thought there wasn’t a toy in the world that could withstand the craziness of our 95 lb German Shepherd, until I found this! It’s great for rolling, tugging, fetching, and chewing, soft enough rubber for his teeth yet so far solid enough to not fall apart. He’s had it for almost a month and I don’t see any rips, holes, or missing pieces. I don’t know if it floats since we use it in the house. And a HUGE bonus: IT DOESN’T SQUEAK. 🥳🥳🥳 We ordered a size Large and it’s a perfect fit. He loves to grab and carry it around when he’s excited, so it’s solid but not too heavy. Will definitely be checking out more toys from this brand. Thank you West Paw!
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Reviewed in the United States on April 15, 2026
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Harry Snodgrass
Battle Creek, US
★★★★★ 4
Durable with limitation
Size: Large, Color: Granny Smith
offers good durability, but our Olde English Bulldogge was able chew an end section nearly off so cut it off and allow him to enjoy the Zogoflex under supervision
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