Allis-Chalmers TLH-21 Load Tap Changer Contacts

Refurbished, reverse-engineered, or new.

Send us your worn TLH-21 contacts and we refurbish them where the base material is sound. Where it is not, we machine new OEM-spec replacements, and where the OEM part is long gone we reverse-engineer it from a sample, a drawing, or a model number. That is the difference from a catalog seller: we are the shop making the part. Full LTC rebuild service is available when the whole tap changer needs work.

Allis-Chalmers TLH-21 questions.

Are Allis-Chalmers TLH-21 LTC contacts still available?

Yes. The original Allis-Chalmers line is largely out of production, so replacements come from a shop that still makes them. Southern Switch machines and, where the part is obsolete, reverse-engineers the full Allis-Chalmers TLH-21 contact set in-house in Palm Harbor, FL, to the original dimensional specification.

Can you refurbish my existing TLH-21 contacts, or only supply new?

Both. We refurbish customer-supplied Allis-Chalmers TLH-21 contacts where the base material is sound, and machine new OEM-spec replacements where it is not. Material certifications are available on request.

How fast can you supply TLH-21 contacts?

Lead time is confirmed at quote and depends on current material availability. In-stock items ship quickly; reverse-engineered first runs take longer.