The GPM BJ088 fuel tank cap is a CNC-friendly aluminium alloy replacement designed for HPI Baja nitro RC models. It is intended as a direct-fit service part to restore secure sealing, reduce wear from frequent access, and provide reliable handling during maintenance and race support.
Engineered for durability and fitment accuracy rather than altering vehicle performance, the cap secures the fuel cell and tolerates repeated opening cycles. Installation is a simple swap using existing mounting points; verify sealing integrity after fitting and ensure fasteners are tightened to recommended settings to avoid distortion of the mating surfaces.
Use this cap when you require a precision-machined metal replacement that improves repeatability in service and fitment for HPI Baja fuel systems.