The Tomei Oil Thermo Killer removes the restriction of the standard oil thermostat to maximise oil flow and cooling on the race track.
Features
- The 4G63 and 4B11 engines suffer a high oil temperatures often in circuit competition
- Removing the thermo switch ensures full oil flow for maximum cooling at high tempeartures
- Can be easily reverted back to OEM for winter use to prevent over-cooling
We ship to the United States and 150 other countries.
Japan Post EMS & ePacket, FedEx, DHL and more.
| Vehicle | Price | Order | |
|---|---|---|---|
| 193040 In stock at Tomei | |||
| Lancer Evolution IV - CN9A | | ||
| 193040 In stock at Tomei | |||
| Lancer Evolution IX - CT9A | | ||
| 193040 In stock at Tomei | |||
| Lancer Evolution V - CP9A | | ||
| 193040 In stock at Tomei | |||
| Lancer Evolution VI - CP9A | | ||
| 193040 In stock at Tomei | |||
| Lancer Evolution VII - CT9A | | ||
| 193040 In stock at Tomei | |||
| Lancer Evolution VIII - CT9A | | ||
| 193040 In stock at Tomei | |||
| Lancer Evolution X - CZ4A | | ||
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
Blitz Racing Radiator Cap
Blitz SE Intercooler Kit
326 Power Gachi Stop Brake Kits
326 Power Nobori Banner Flag
About Nengun Performance
Since the year 2000, Nengun Performance has supplied over 100,000 parts direct from Fukuoka, Japan to 150 countries worldwide. If you have any questions, our experienced and friendly customer service team is always happy to help, please send us an enquiry.










