Tomei valve guides brings about the greatest effects thus the stress fall of valve system, valve stick prevention, and valve guide crack prevention.
Since Phosphor bronze (Cn-Sn-P alloy) has intensity and high thermal conductivity, it is used for the valve guide of high rotation and high output engine. Moreover, since its rubbing characteristic is higher than general material, clearance with valve can be made smaller and attachment of the circumference of valve and operation accuracy can be improved. This brings about the greatest effects thus the stress fall of valve system, valve stick prevention, and valve guide crack prevention.
Features
- Material: 5191 (Cn-Sn-P alloy)
- Tensile Strength: 590~685 N/m2
- Harness: 180~230 (HB)
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
| Vehicle | Price | Order | |
|---|---|---|---|
| 163304 | |||
| CA18DET | | ||
| 163047 Back in stock 31 Jan 2027 at Tomei | |||
| RB20DE | | ||
| 163047 Back in stock 31 Jan 2027 at Tomei | |||
| RB20DET | | ||
| 163047 Back in stock 31 Jan 2027 at Tomei | |||
| RB25DE | | ||
| 163047 Back in stock 31 Jan 2027 at Tomei | |||
| RB25DET | | ||
| 163047 Back in stock 31 Jan 2027 at Tomei | |||
| RB25DET NEO | | ||
| 163046 | |||
| RB26DETT | | ||
| VR38DETT | | ||
| 163048 In stock at Tomei | |||
| 180SX - RS13 | | ||
| 163048 In stock at Tomei | |||
| Silvia - S13 | | ||
| 163049 In stock at Tomei | |||
| Silvia - S14 | | ||
| 163049 In stock at Tomei | |||
| Silvia - S15 | | ||
| Vehicle | Price | Order | |
|---|---|---|---|
| 4B11 | | ||
| 163301 In stock at Tomei | |||
| 4G63 | | ||
Tomei was founded in 1968 by members of the Johoku Riders motorcycle club, among them Nissan works driver Seiichi Suzuki. It began as a racing engine builder for Nissan engines only, and its work on the Nissan L-series and later the RB and SR engines made its name. The company took the name Tomei Powered when it moved to Machida, Tokyo, in 1994.
Tomei now develops parts for many Japanese engines, Mitsubishi, Subaru and Toyota as well as Nissan: camshafts, valve train parts, pistons, connecting rods and crankshafts, complete engines, and exhaust systems such as its well-known Expreme titanium range.
Associated JDM Parts
APEXi Exhaust Control Valve
HKS Camshafts - Nissan
326 Power Gachi Stop Brake Kits
About NENGUN
Since the year 2000, NENGUN has supplied over 500,000 parts direct from Fukuoka, Japan to 170 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.












