This aftermarket rebuild kit is designed for dual-stage LPG regulators/converters found in propane-powered forklifts and industrial equipment. Compatible with regulator models using reference E2141010A, the kit includes internal diaphragms, o-rings, gaskets, and control components to restore correct fuel vapor regulation and eliminate idle issues or vapor leaks. Suitable for forklifts using 4Y, K21, and K25 engines, this kit helps technicians perform preventive maintenance or address regulator performance failures without replacing the full unit. Manufactured from fuel-grade elastomers and corrosion-resistant components for reliable long-term use in industrial environments.