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An overrunning alternator pulley is used to smooth out irregularities of driving speed of an automobile alternator. During normal operation alternator pulleys can rotate at up to 18,000rpm and coupled with rapid acceleration and deceleration can lead to premature alternator, pulley and drive belt failure. To prevent this Overrunning Alternator Pulleys (OAPs) were developed that are designed to decouple the alternator from the rotational irregularities of the crankshaft in an internal combustion engine, as the alternator has the highest moment of inertia in the accessory belt drive. As a result of this decoupling the alternator is only driven using the acceleration components of the rotational irregularity of the crankshaft.For details see this YouTube video
| Dimensions | 25x20x17 |
|---|---|
| Plug Type | AP25 |
| Pulley Grooves | 7V |
| Adjuster to Pivot Hole Length | 169mm |
| Pivot Hole Diameter | M8 x 1.25mm |
| Length Foot to Foot | 80mm |
| Pulley Diameter | 60mm |
| Shaft Diameter | 17mm |
| Specification2 | L.W.H: 23x18x17cm |
| Common Application | Nissan Patrol 3.0L GU Turbo Diesel |
| Voltage | 12V |
| Adjuster Hole Diameter | 8mm |
| Brand | BAXTERS |
| Amperage | 90A |
| Mounting Type | J180 |
| Regulator Style | Internal |
| Specification1 | Clutch Pulley: yes |
| Weight | 6KG |
BAXTERS
Alternator Hitachi Type 12V 110A E Coated Suits Nissan Patrol GU Navara D22 ZD30DDTIItem No. A-1447H
BAXTERS GENUINE
Alternator Mitsubishi 12V 120A Suits Nissan Navara ZD30DDTI 3.0L DieselItem No. A-4269
