Photos shown for illustration; shade and shape may differ slightly.
Tegiwa Aluminium Underdrive Crank Pulley for Honda K-series Engines, Civic Type R EP3
Supplier stock
The Tegiwa aluminium pulley weighs 0.45 kg against 1.91 kg for the OEM part, so the engine has less rotating mass and revs up faster. It underdrives the ancillaries by less than 20 percent, enough for them to keep their factory output. Tegiwa measures a 5-7 bhp gain over the stock pulley.
Specifications
| Brand | Tegiwa |
| Code | T-4077107-A, T-4077107-B |
| Material | aluminium |
| Weight | 0.45 kg (OEM 1.91 kg) |
| Underdrive | under 20 percent |
| Measured gain | 5-7 bhp |
| Included | new matching auxiliary belt |
| Versions | with or without air conditioning |
Which cars it fits
- Honda Civic Type R EP3 (2001-2006), K20A engine
What to check
- Choose the version for a car with or without air conditioning.