Industrial AP8140179 Valve Spring Compressor

AP8140179 Valve Spring Compressor is an OEM Aprilia service tool designed to compress valve springs for removal and installation during engine maintenance on Aprilia motorcycles. It is documented in official Aprilia service literature as a valve spring compressor and is listed in the RSV4 2017 service station manual among the manufacturer’s engine-special tools. In Piaggio/Aprilia catalogs the part is described as a Bow for Valve Assy&Disassy, underscoring its role in valve assembly and disassembly operations. Typical use is to securely compress intake and exhaust valve springs so keepers can be released and the valve can be serviced or inspected as part of routine valve work. The AP8140179 appears in multiple OEM listings and repair guides, confirming its status as genuine Aprilia tooling for valve maintenance across relevant engines. This tool belongs to the standard set of Aprilia engine tools used in professional service environments to facilitate precise, controlled valve spring compression during overhaul tasks.