Custom copper-brass and aluminium radiators manufactured and supplied for all diesel generator sets from 125 KVA to 1200 KVA. All major brands — Kirloskar, Cummins, Ashok Leyland, Caterpillar, KOEL, Greaves and more. Made-to-order at our Worli, Mumbai workshop. 6-month warranty on every radiator supplied.
Ajanta Radiators has been manufacturing new radiators for diesel generator sets since 1970 at our Worli, Mumbai workshop. Every radiator we supply is custom-built to the exact specifications of your DG set — we do not stock generic off-the-shelf radiators. This means perfect dimensional fit, correct core row count, and the right tube and fin configuration for your specific engine's heat rejection requirement. We manufacture both copper-brass and aluminium radiators for all major DG set brands used in India.
Made in Mumbai — faster delivery: No import wait time, no customs delays. Most new radiators ready in 3–7 working days from your order.
Custom-built to exact spec: We manufacture to your DG set's exact dimensions — not a generic catalogue part. Perfect fit guaranteed.
Copper-brass option for aluminium sets: If your DG set originally came with an aluminium radiator (Caterpillar, Cummins KTA), we can supply a copper-brass version for longer service life in Mumbai's coastal climate.
55+ years manufacturing experience: We have built radiators for Kirloskar, Cummins, Ashok Leyland, Caterpillar, and hundreds of other applications since 1970. We know exactly what your DG set needs.
6-month warranty: Every new radiator we supply carries a 6-month warranty — something no importer or dealer typically offers on a catalogue part.
Alt text: "New copper-brass DG set radiator manufactured at Ajanta Radiators Worli Mumbai — ready for supply"
✓ Best for: All Indian DG sets · 24×7 continuous-duty · Mumbai coastal environment
✓ Best for: Standby DG sets · Low running hours · Original-spec replacement
Send your DG set brand, model, KVA, and photos of your existing radiator. We confirm the specification and give you a quote.
We verify the exact dimensions — height, width, core depth, tube count, fin density, inlet/outlet positions — from your spec or by measuring the old radiator.
Copper-brass or aluminium tubes and fins assembled into the core block at our Worli workshop. No outsourcing — full quality control.
Brass or aluminium tanks fabricated to match original dimensions. Inlet/outlet fittings, overflow connections, and mounting points all incorporated.
Core soldered or welded into tanks. All joints sealed and inspected. Radiator assembled with all fittings and hose connections.
Every new radiator pressure tested to full operating pressure before delivery. Zero leaks confirmed — no exceptions.
Delivered to your Mumbai location with 6-month warranty. Ready to install directly onto your DG set.
Alt text: "New DG set radiator being assembled at Ajanta Radiators Worli Mumbai workshop — copper-brass tanks and core"
| DG Set Brand | KVA Range | Radiator Type We Supply | Typical Ready Time | Details |
|---|---|---|---|---|
| Kirloskar | 125–750 KVA | Copper-Brass | 3–5 working days | KG · SL90 · DV Series → |
| Cummins (Copper-Brass) | 125–500 KVA | Copper-Brass | 3–5 working days | 6BTA · QSB · QSL9 · K19 → |
| Cummins (Aluminium) | 625–1200 KVA | Aluminium | 5–7 working days | QST30 · KTA38 · KTA50 → |
| Ashok Leyland (Leypower) | 125–250 KVA | Copper-Brass | 2–4 working days | Leypower Series → |
| Caterpillar (Aluminium Spec) | 250–1200 KVA | Aluminium | 5–7 working days | C9 · C15 · C18 · C32 → |
| Caterpillar (CB Upgrade) | 250–1200 KVA | Copper-Brass | 5–7 working days | CB Upgrade — Longer Life → |
| KOEL iGreen | 125–500 KVA | Copper-Brass | 3–5 working days | iGreen Series → |
| Greaves MWM | 125–500 KVA | Copper-Brass | 4–6 working days | MWM 226 · 816 · 1013 → |
| Perkins | 125–750 KVA | Both Types | 4–6 working days | WhatsApp for Details → |
| Other Brands | Any KVA | Both Types | Confirm after spec | WhatsApp for Details → |
Ready times are estimates from order confirmation — we give a confirmed date after reviewing your specifications. WhatsApp us your DG set details for a quote →
The more information you provide, the faster and more accurately we can quote. Here is exactly what helps us most:
Brand name (Kirloskar / Cummins / CAT etc.), model number if available, KVA rating, engine model number (found on the engine nameplate on the DG set). This lets us confirm the standard spec for your radiator.
Most Important InformationIf you have the old radiator, send us photos showing: overall height × width, core depth, number of core rows visible from the side, and inlet/outlet pipe positions. We can measure from your photos or you can bring the old radiator to our Worli workshop for measurement.
Ensures Perfect FitPhotos of the front, side, top, and bottom of your existing radiator are very helpful. Include a close-up of any nameplate or part number sticker on the radiator. Even a damaged old radiator helps us determine the exact spec for the new one.
WhatsApp Photos — Fastest WayWhatsApp us at +91 81088 88853 with:
1. Your DG set brand and KVA (e.g. "Kirloskar 250 KVA")
2. 2–3 photos of your existing radiator (front, side, close-up of any nameplate)
3. Your location in Mumbai for delivery
We respond within the hour with a confirmed price, specification, and ready date. No lengthy forms, no waiting days for a quote.
This is a common question. Here is our honest guide:
✓ Most cost-effective — we always suggest recoring first if tanks are sound. See recoring page →
✓ Best for: new installations, severely damaged existing radiator, 24×7 upgrade
Established 1970 at Worli, Mumbai. New radiator manufacturing is our core business — not a side service. We have been building DG set radiators since the Indian generator industry began.
Every radiator built to your DG set's exact dimensions — not a generic catalogue part. Perfect fit, correct core configuration, and right heat rejection capacity for your engine.
Every new radiator manufactured at our Worli workshop. No middlemen, no import delays, no quality uncertainty. We control every step from raw copper-brass to finished radiator.
Most new DG set radiators ready in 3–7 working days from confirmed order. Faster than importing and far more reliable in terms of exact fit and specification.
6-month warranty on every new radiator we supply — standard. If a leak or defect appears within 6 months of our manufacture, we fix it at no charge.
We deliver new DG set radiators anywhere in Mumbai — Andheri, Thane, Navi Mumbai, BKC, Dharavi, Dombivli, Bhiwandi, Borivali, Chembur and all areas.
For standard copper-brass radiators in the 125–500 KVA range (Kirloskar, Cummins 6BTA/QSL9/K19, Ashok Leyland, KOEL), most new radiators are ready in 3–5 working days from confirmed order. For larger radiators (625–1000 KVA) and aluminium builds, allow 5–7 working days. For very large radiators (1200 KVA, CAT C175, Cummins KTA50), allow 7–10 working days. We confirm the exact ready date after reviewing your specifications.
Yes — if you provide the DG set brand, engine model number, and KVA rating, we can determine the correct radiator specification from our manufacturing records and experience with that engine family. For common models like Kirloskar KG series, Cummins K19, or Ashok Leyland Leypower, we have the dimensions on file. For less common models, we may ask for the DG set nameplate details or measurements of the radiator space on the genset.
Yes — this is one of our most frequently requested services for Caterpillar operators in Mumbai. We manufacture a complete new copper-brass radiator to the exact dimensions of your original CAT aluminium radiator — same frame size, same inlet/outlet positions, same mounting points. The copper-brass radiator fits directly in place of the original aluminium unit and gives significantly longer service life for continuous-duty CAT DG sets running in Mumbai's coastal climate.
Yes — and in some cases better. OEM radiators for Indian DG sets are often sourced from third-party radiator manufacturers anyway. Our new radiators are built to the same dimensional and thermal specifications as the original, using quality copper-brass or aluminium materials. For Caterpillar sets, our copper-brass replacement actually outperforms the original aluminium radiator in terms of corrosion resistance and repairability. Every radiator we supply is pressure tested before delivery and backed by a 6-month warranty.
Yes. While we are based in Worli, Mumbai and primarily serve the Mumbai region, we also supply new radiators to customers across Maharashtra and other states via transport. For locations outside Mumbai, the customer typically arranges courier or transport from our Worli workshop after the radiator is ready. WhatsApp us your location and we can discuss the most practical delivery arrangement for your site.
If your existing radiator's tanks and frame are in good structural condition, recoring saves you 30–60% and delivers identical performance. We always recommend recoring over a new radiator when the tanks are sound — it is the most cost-effective solution. A new radiator makes sense when the tanks are severely corroded, cracked at multiple points, or physically damaged beyond repair. We will give you an honest assessment after inspecting your radiator — we never push a more expensive option when a cheaper one works just as well.
Send us your DG set brand, model, KVA, and photos of your existing radiator on WhatsApp — we confirm the specification and price within the hour.