The function of JS-OAP® overrunning alternator pulley is to decouple the alternator from the rotational irregularity of the crankshaft of an internal combustion engine. This will help the front end accessory drive (FEAD) system move smoothly, increase the lifetime of parts of FEAD system, and improve the NVH, fuel consumption and exhaust emission of engine.

JS-OAP is the patented products which have more than 500 types that can almost match 95% of vehicles in global market.We have great competitive as follow:

Modular product with short lead time

Standard structure and clutch unit.

Easy substitution for other OWC products and solid pulley.

Validated high quality

Design, manufacture and test abilities.

Approved by some alternator manufacturers and car manufacturers.

Better performance and durability

Same performance with OEM OAPs.

Target life of 240,000km and total several millions kilometers of road tests.

100,000km guarantee in 2 years for aftermarket.

Competitive price and service in aftermarket

Less cost than competitors with same quality.

Professional service and quick response.