24-91271 CLUTCH PULLEY FOR VW

24-91271 -Groove Clutch Pulley For Bosch IR/IF Alternators

 >>>Replaces:  
Hitachi GD216009, GD216009-2, GD216009-3, GD216009-9, GD216009-A, L1100G-7500, L1110G-25001, L1110G-7500, INA Bearing Co 535 0044 10, F-232288, F-232288.01, F-232288.02, F-232288.03, F-232288.1, F-232288.2, F-232288.3, Nissan, Infiniti 23151-6N200, 23151-6N20A, 23151-6N20B, Valeo 588092
Unit Nos:  
Hitachi LR1100-734, LR1100-734B, LR1100-734C, LR1110-713C, LR1110-724, LR1110-724B, LR1110-724BR, LR1110-724C, LR1110-726, LR1110-726E; Nissan, Infiniti 23100-8J000, 23100-AU40D, 23100-EA000, 23100-EA00A, 23100-EA00AR, 23100-EA00B, 23100-ZB000, 23100-ZB00A, 23100-ZB00B, 23100-ZB00CRE, 2310M-ZB00CRW; Suzuki 31400-82Z00, 31400-82Z01
Lester Nos: 11119, 11163, 13939

 >>>WAI NO.24-81107

 >>> DESCRIPTION

R:6

ID:17
H:10.8
RD:52
CW S:M16
L: 41

 >>>For: Hitachi IR/IF Alternators
Unit Nos: Hitachi LR1100-734, -734B; Nissan,23100-8J000 Lester Nos: 13939WAI Ref. Nos: 1-2450-01HI

 >>>Used On: (2005-02) Nissan

ONE PARTS FOR AN ALTERNATOR

TIPS:

Overrunning Alternator Pulley improves internal combustion engine

An overrunning alternator pulley (OAP) can play an important part in the smooth running of the modern internal combustion (IC) engine. But it often gets overlooked by design engineers despite the positive effects it can have on energy efficiency.

The function of the OAP is to decouple the alternator from rotational irregularities. This function is critical, particularly as rotational irregularities that occur in IC engines, including those with turbochargers, can be significantly higher than indicated to a driver by a tachometer needle. 

In a vehicle's accessory drive, the alternator is the component with the greatest moment of inertia and highest speed. This means that acceleration and deceleration forces acting on the alternator resulting from rotational irregularities have the greatest effect on the belt. 
Using an OAP therefore ensures that only the accelerating proportion of the crankshaft forces that are transferred to the belt drive are used to drive the alternator.