Guides
Oct 27, 2026Battery Train Horn Replacement Parts: Trumpets, Diaphragms, Remotes, and Receivers
Which part of a battery train horn failed, what BossHorn sells as a standalone replacement, and what to source elsewhere, from trumpet sets and...
Oct 16, 2026Train Horn Frozen on a Cold Morning? Ice in the Trumpets and How to Fix It
No sound, a hiss, or a squeak on a freezing morning usually means ice on the diaphragm or in the trumpets, not a dead...
Sep 29, 2026Only One Trumpet Works on My Train Horn: Why the Others Go Silent and How to Fix It
When only one trumpet on a quad train horn sounds, the compressor and trigger are fine. The fault is between the air supply and...
Sep 23, 2026Repair or Replace a Battery Train Horn? What's Fixable and What It Costs
Diaphragms, remotes, trumpets, and the compressor are all fixable on a battery train horn, and most fixes cost a fraction of a new horn....
Sep 17, 2026Wasps and Mud Daubers in Your Train Horn Trumpets: How to Spot, Clear, and Prevent Nests
A train horn trumpet is a dry, sheltered, dead-end tube, which is exactly what a mud dauber or paper wasp wants. Here's how to...
Aug 23, 2026Train Horn Diaphragm Replacement: When the Blast Dies and How to Rebuild It
The diaphragm is the one true wear part inside a trumpet-style train horn. Here's how to tell when yours is worn out, what kills...