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Description
NISMO Big Operating Cylinder (metal) For Silvia 180SX (R)PS13・S14 SR20DET 30620-RS520Brand NISMO Series Name Big Operating Cylinder (for metal disc) Product Descriptions To reduce the pedal load when using a sports clutch, improve half clutch operating characteristics and provide proper clutch connection positioning, the size of the operating cylinder was increased from 3 4 inch (19. 05mm) to 13 16 inch (20. 54mm). This reduces pedal pressure by as much as 14% compared to a standard part., Transmission: FS5W71C, Clutch Type: Push
| Brand | NISMO |
| Series Name | Big Operating Cylinder (for metal disc) |
| Product Descriptions | To reduce the pedal load when using a sports clutch, improve half-clutch operating characteristics and provide proper clutch connection positioning, the size of the operating cylinder was increased from 3/4 inch (ø19.05mm) to 13/16 inch (ø20.54mm). This reduces pedal pressure by as much as 14% compared to a standard part., Transmission: FS5W71C, Clutch Type: Push |
| Product Number | 30620-RS520 |
| Compatible Vehicle | Silvia
180SX (R)PS13・S14 |
| Engine | SR20DET |
| Remark | When using the Big Operating Cylinder, the stroke amount of the cylinder decreases, so please adjust the stroke as necessary. 1) Be sure to clamp the hose with a hose clamp to prevent air from entering before removing the standard operating cylinder. 2) Fill the Big Operating Cylinder to be replaced with Brake fluid, remove air beforehand and connect it to the Hose. 3) Even if you do 1), 2) work, air enters the piping. Once the air enters the piping, the pedal stroke and feel change. Because it is difficult to remove air from the thick diameter U-shaped pipe etc, please bleed sufficiently. 4) To facilitate the work of 3), air bleeding by vacuuming is effective (Please use the U-shaped pipe dismantling adapter attached to the NISMO clutch hose). |
| Notes | Images are for illustration purpose only. Actual product may vary. |
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4.1 ★★★★★
Based on 18 reviews
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Product Reviews
★★★★★ 5
Great chew toy for my golden retriever .
Color: Ring
My golden retriever loves this toy . And she has not chewed it up . I bought several of them . It is durable and she is an aggressive chewer with toys .
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Reviewed in the United States on May 29, 2025
★★★★★ 5
Dog chew toy
Color: Ring
Well made, too big & heavy for small-medium dogs.
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Reviewed in the United States on February 2, 2026
★★★★★ 4
My dogs go CRAZY for these!
Color: Ring
My Pitbull and Frenchie go CRAZY for these! They do have a leathery type smell to them if you’re sensitive to that (doesn’t bother me) and my dogs WILL ingest what they tear off if I don’t watch them closely. Only removing 1 star because of how fast my dogs tear these apart and how deliciously enticing they apparently are to ingest, but my dogs may just be psychopaths. :)
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Reviewed in the United States on September 13, 2025
★★★★★ 5
Not the most durable, but my dog LOVES it.
Style: Plush Surprise Color, Size: 24"
My boyfriend’s dog had the small version from Petsmart and she has been very gentle with it since she likes it so much. I decided to surprise her with this 24 inch one for Christmas. She was obsessed! It’s cute, it’s very soft, and has a big squeaker in the top, which she loves! She was a little more tough on it and it did get some rips 12 hours in, but it is still in one piece at the moment and brings lots of joy. The dog is a medium/large size.
Dog toys can be so expensive. I personally think the was a great price despite not being the most durable. I may purchase again next year!
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Reviewed in the United States on January 3, 2026
★★★★★ 5
Update: Excellent Customer Service Made Everything Worthwhile!
Style: Plush Surprise Color, Size: 24", Style: Plush Surprise Color, Size: 24"
07/17/2025: This doggy toy was destroyed within 2 hours of its arrival. In my opinion, it was not at all worth the cost. (1 star)
Update (07/19/2025): I have contacted the manufacturer and they said they will send out a new replacement toy.
As of now, I have revised the review to 2 stars for the excellent and efficient customer service pending arrival of said replacement. Will update again soon. (2 stars)
Update (07/23/2025):
The replacements have arrived! My dog loves the new plushie sloth and so far it is in tact. It doesn't have stuffing in the body as far as I can tell, so little to no clean up hopefully. They also sent her a spiked squeaky ball and she's getting used to it. This company has some of the best customer service and support that I've experienced. (5 stars)
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Reviewed in the United States on July 18, 2025