Accumulator Adpt Fitting 13/16-16 to 2-5/8 O-Ring

The Moroso Accumulator Adapter Fitting 13/16-16 to 2-5/8 O-Ring (Part #23676) is a precision bolt-on oil filter adapter engineered for high-performance Chevy V8 engine systems. This aluminum adapter connects a 13/16-16 inch center thread to a 10 AN female port, enabling seamless integration of aftermarket oil accumulator systems in competition and street applications where reliable oil management is critical.

Manufactured from aluminum and finished in black anodize, this adapter handles the interface between OEM and performance cooling circuits with precision SAE threads and AN port compatibility. The 13/16-16 inch center thread mates directly to stock filter locations, while the 2-5/8 O-ring seal dimension ensures leak-free hydraulic contact. Black anodizing provides corrosion resistance in engine bay environments and resists fluid degradation from repeated thermal cycling. The 10 AN female port accepts standard performance hoses and fittings used in dry-sump, remotely-mounted filter, and accumulator configurations.

This adapter is purpose-built for Chevy V8 performance builds where factory filter location must be retained but auxiliary cooling circuits need integration—common in race applications, high-output street engines, and systems requiring oil temperature management. Mechanics and engine builders working with LS and small-block platforms use this fitting to safely route oil to remote coolers, accumulators, or return systems without fabrication. The O-ring sealed design minimizes risk of weeping under sustained pressure, a critical concern in closed-loop cooling systems.