The Märklin 02421 is a large 250 ml refill bottle of smoke fluid designed for use in model locomotives equipped with smoke generators. It is suitable for Gauge 1 models as well as HO locomotives with compatible smoke units.

This smoke fluid is used to create realistic steam or diesel smoke effects, depending on the locomotive’s smoke system. It is designed for consistent performance and safe operation within Märklin smoke units and similar systems.

A very important part of realistic steam operation, smoke fluid helps enhance visual realism by producing controlled vapour output through the locomotive’s smoke generator.

This product is intended for use with all compatible smoke units, including cylinder steam systems and pulsed smoke generators.

Features / Product Details

• Manufacturer: Märklin
• Product Code: 02421
• Type: Smoke fluid / smoke oil / steam generator fluid
• Bottle size: 250 ml
• Suitable for Gauge 1 and compatible HO smoke units
• Designed for use with cylinder steam and pulsed smoke systems
• Provides realistic smoke effect for steam and diesel locomotives
• Large economy refill bottle

Uses

• Refilling locomotive smoke generators
• Creating realistic steam effects in steam locomotives
• Enhancing diesel exhaust simulation in smoke-equipped models
• Gauge 1 and HO scale smoke system maintenance

⚠️ Usage & Safety Note

Smoke fluid is a specialised modelling consumable and should only be used as intended in compatible smoke generators. Avoid overfilling smoke units, as this may affect performance or cause residue build-up.

Keep out of reach of children and handle with care as per manufacturer guidance.