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Description
HKS Piston and Connecting Rod Kit - Nissan R35 GT-RHKS 21004 AN016 Piston and Connecting Rod Kit Nissan R35 GT R This Forged Piston Kit and Connecting Rod Set was designed in order to improve the performance of the R35 GT R using the factory pistons and connecting rods. When paired with the GT800 Package and this bottom engine kit the R 35 can release most restrictions which enables higher performance numbers. This HKS Piston Kit and Connecting Rod Set are therefore best to used with the GT800 Package
HKS 21004-AN016 Piston and Connecting Rod Kit - Nissan R35 GT-R
This Forged Piston Kit and Connecting Rod Set was designed in order to improve the performance of the R35 GT-R using the factory pistons and connecting rods. When paired with the GT800 Package and this bottom engine kit the R-35 can release most restrictions which enables higher performance numbers. This HKS Piston Kit and Connecting Rod Set are therefore best to used with the GT800 Package to upgrade the engine properly. Dozens of tuning shops and race teams have incorporated this kit and achieved tremendous, winning results.
High Output Specs:
- The bore sizes of both Piston Kit and Connecting Rod Set are the same as the factory sizes so they can be replaced with the factory parts.
- To avoid piston land breakage, HKS pistons are made with forged materials instead of casting like the factory pistons.
- It's recommended to use the GT800 Package for incredible results.
- In-house test at 900PS confirmed the durability and safety.
- The setting range is widened by reducing the pressure rate from 9.0 factory rate to 8.7. This is necessary to increase the engine output using the aluminum block specs and/or bigger cylinder bore.
Factory OEM Improvements:
- The weight of the connecting rods is the same as the factory. This because the affect of the V6 engine's peculiar vibrations are considered.
- The pistons shed weight by approximately 25g.
- The combined weight of all the HKS parts are optimized in order to harmonize with the factory crankshaft preventing the use a dummy weight to balance.
Extensive R&D:
- The 3D profile for the pistons were chosen from various profile tests.
- The forged material was created exclusively for HKS and the optimal piston shapes were utilized.
- Wit the results of our analysis, the durability of the factory connecting rod was improved by approx 46% while still maintaining the balance in tact.
- All parts are MADE IN JAPAN (in-house product)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Men's watches
Color: 6617: Two tone strap & blue dial
Stillesh watch, beautiful look, accurate
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Reviewed in the United States on April 20, 2026
★★★★★ 1
Zero customer service, doesn’t keep time.
Color: 6633: Black band & black dial
Looks nice. Doesn’t work.
This watch does not keep time. You’ll be resetting it constantly, and every time you do, the poorly placed dials end up shifting the date too.
The design is impractical. The buttons and dials get bumped during normal, everyday use, which throws everything off again. The date display is also extremely hard to read, especially if you have even minor vision issues.
The glow feature? Never worked at all.
As for the warranty, don’t count on it. The seller is unreachable, and the listed phone number is out of service. I even purchased an extended warranty, only to find out it’s useless until the original 24-month warranty expires, which you can’t even use in the first place.
Bottom line: this is a good-looking piece of junk. Save your money.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Better than I expected
Color: G6721: Two tone band & Blue dial
Have not worn it yet, but very beautiful watch and I love how it’s built and designed
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Reviewed in the United States on February 26, 2026
★★★★★ 3
Readability
Color: 6633: Black band & black dial
It is a beautful and heavy watch with interesting dial components. I'm not sure how it can claim to be self-winding, when it requires manual turning every 1-2 days. Biggest disappointment for me is readability. It has no backlighting, so it needs hands with more contrast and more luminescent surface, neither of which it posesses. So, it is practically useless in low light situations... a daytime device at best.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Reloj automático, hermoso diseño
Color: 6633: Gold band & gold dial
Este reloj lo compre ase casi un año y quise esperar para poder dejar una justa reseña, en lo personal no tengo quejas del producto me gusto mucho su diseño además de que lo uso permanente me e bañado en piscina su color y estructura sigue intacto me alegra saber que ise una buena compra y paso por aquí a recomendarles
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Reviewed in the United States on November 4, 2025