OAP is overrunning alternator pulley, OAD is overrunning alternator decoupler.
Both are alternator freewheel pulleys for same work purpose. Our pulley achieves the function of relieving and calm the auxiliary drive in order to reduce noise, cut fuel consumption and protect all components in the auxiliary drive.
The dust-free cap reliably protects against water penetration and contamination and should be replaced after each disassembly.
What GXOAP alternator pulley works in the engine:
First to check GXOAP alternator pulley well in the installed condition. In one direction, the alternator shaft must be able to turn freely. And it does not work in other directions.
The freewheel lock and takes along all the other belt-driven components in the auxiliary drive, The freewheel locks and takes along all the other belt-driven components in the auxiliary drive. Even without the V-ribbed belt, the clutch pulley can be checked by holding the pulley with one hand.
If your mounted a decoupler pulley on alternator, let us check how it works in the engine.
In OAD, there is a noticeable increase in spring force before the freewheel locks and takes along all the other belt-driven components in the auxiliary drive again. Checking without the V-ribbed belt, it also works in the same way as with the OAP.
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As for product recommendations,,wcpn36rc4x / 028903119AA / F-553470 are frequently required products. Please give a request to have more info about GXOAP or product brochure. We’d love to answer any technical queries or make an offer with details for you.