ATI 917753 Super Damper Harmonic Crank Pulley for R33 and R34 RB26DETT. This truely balanced crank pulley was made to eliminate torsional crankshaft vibrations caused by abnormal wear. It is a direct replacement for the OEM crank pulley. Made to exceed SFI 18.1 Specs with laser engraved timing marks. The ATI Super Damper is also coated with black zinc chromate to prevent rust and reduce wear.
The Super Damper does not retain stock belt size. You will need to measure for the correct belt size.
Damper includes new aluminum water pump pulley for clearance. A/C belt is a 25% overdrive - DO NOT USE BELT IF RACING! 15% underdrive on power steering, OEM size on water pump.
Approximate weight of the pulley itself is about 11 lbs, good for 600-1000HP.
Vehicle Fitments:
| Year |
Make |
Model |
Submodel |
| 1991 - 1998 |
Nissan |
240SX |
LE |
| 1989 - 1998 |
Nissan |
240SX |
SE, Base |
| 1989 - 1990 |
Nissan |
240SX |
XE |
