Fast-moving generator spare parts from our Guwahati counter — AVR cards, carbon brushes, fuel filters, air cleaners, and oil filters for DG sets across Northeast India.
Generator sets are essential backup and primary power for commercial establishments, hospitals, hotels, and construction sites across Northeast India. When a generator goes down, every hour without power costs money and can compromise safety. Multi Trade Combines stocks a range of fast-moving generator spare parts from our Guwahati counter — AVR cards, carbon brushes, fuel filters, air cleaners, and oil filters — so that common generator faults can be resolved the same day rather than waiting for parts to arrive from outside the region.
We serve workshop mechanics who maintain diesel generator sets, facility managers for hospitals and commercial properties in Guwahati, site engineers on construction and hydro project sites in Assam, Meghalaya, Arunachal Pradesh, and Nagaland, and tea estate electricians who maintain DG sets for remote estate bungalows and processing facilities. Our counter team has been identifying and sourcing generator spares since 1991 and can assist with matching parts from a nameplate photograph or old component.
AVR Cards (Automatic Voltage Regulators): The AVR card is the electronic brain of a brush-type alternator. It monitors output voltage and adjusts field current to maintain stable voltage under changing loads. A faulty AVR causes voltage swings, motor and equipment damage, and eventually alternator failure. Replacement AVR cards must match the alternator's voltage, current sensing, and trim-range specifications exactly — a wrong card can damage the alternator windings.
Carbon Brushes: Brush-type alternators use carbon brushes to transfer current to the rotating slip rings. Brushes wear gradually with running hours and must be replaced before they wear down to the brush holder, which then arcs on the slip ring and damages it. We stock brushes in standard grades — electrographite for most DG alternators, silver-graphite for precision applications.
Filters: Diesel generator fuel filters should be replaced at every service interval (typically 250–500 running hours in dusty NE India conditions). Air filters protect the engine from dust ingestion — critical on construction sites and in areas near rice mills or tea-processing factories where airborne particulate is high. Oil filters are replaced at every engine oil change to prevent sludge recirculation.
| Category | Generators |
|---|---|
| Key specs | AVR cards, brushes, filters |
| Items stocked | AVR cards, carbon brushes, fuel filters, air filters, oil filters |
| Compatibility | Kirloskar, Jakson, Greaves, generic OEM alternators |
| Availability | In stock — price on request |
We stock AVR (Automatic Voltage Regulator) cards for the major generator brands sold in Northeast India — including Kirloskar, Jakson, Greaves, and several Chinese OEM alternator brands. AVR cards regulate the alternator field excitation to maintain output voltage within ±1–2% of the set value under varying load. Bring the old card or the alternator brand/model details to our Guwahati counter and we will match the correct replacement. WhatsApp us a photo of the existing card for fast identification.
Carbon brushes on brush-type alternators typically last 2,000–5,000 running hours, but operating in dusty environments (common on construction sites in Assam) shortens this considerably. Signs of brush wear: sparking at the slip rings, voltage instability, and a metallic smell from the alternator end. Replacing brushes promptly prevents slip ring damage, which is far more expensive to repair. Bring the brush dimensions or alternator model to us — we stock various brush grades and sizes for standard alternators.