STAINMANN MASCHINENBAU supplies fuel filler caps that seal and protect fuel tanks across applications. A reliable filler cap keeps out water, dust and debris while enabling safe refuelling and proper venting. Poor-quality caps are a common, overlooked cause of fuel contamination and tank problems.
Our caps are engineered for secure sealing, durability and resistance to weather and handling. We offer vented, lockable and standard configurations for generators, vehicles and industrial tanks. Each cap carries quality control, CE marking and ISO-certified processes.
From the United States, Türkiye and Ukraine, we provide standard and custom filler caps. Custom thread sizes and locking options are available on request. Fast availability supports maintenance and prevents downtime from a small but critical part.
STAINMANN fuel filler caps protect fuel quality and tank integrity.