📸 3 real warehouse photos — Pioneer Mitra stock, New Delhi. Click main image to zoom.
Request cap fitting, label, or a short stock video on WhatsApp — usually within minutes (IST export hours).
JCB JS140 Coolant Expansion Tank
Replacement coolant reservoir for JCB JS140 excavator — maintains coolant level, system pressure and engine cooling efficiency on heavy-duty sites.
- Ready stock available — dispatch from New Delhi warehouse
- Worldwide shipping — UAE, Africa, GCC & global air freight
- Excavator spare parts specialist — fitment check before export
Indicative export range ₹1,500–₹3,500 · exact quote on WhatsApp within 24 hours
Product Video — JCB JS140 Coolant Tank
Real stock video — confirm your machine model and old tank photo on WhatsApp before we dispatch.
Product Description
The JCB JS140 coolant expansion tank (also searched as JCB JS140 expansion tank or JCB JS140 radiator coolant tank) is a pressurised plastic reservoir fitted in the excavator cooling circuit. It stores coolant above the minimum level in the radiator, absorbs thermal expansion when the diesel engine reaches operating temperature, and helps prevent air locks that cause overheating on construction and earthmoving jobsites.
This unit is moulded in translucent engineering plastic so operators can visually check coolant level without opening the system. The integrated pressure cap is rated 1.0 bar (visible on the cap label) — always replace the cap with the correct rating; using a higher-pressure cap can stress hoses and radiator cores, while a weak cap allows coolant loss and boil-over in hot climates such as UAE, Nigeria and North India.
Hose outlet nozzles and metal-lined mounting brackets are moulded into the body for direct fitment on the JS140 cooling line. Workshops typically replace the tank when plastic becomes brittle from heat cycles, UV exposure, or after impact from track frames and service tools in the engine bay.
Pioneer Mitra Engineering Company supplies this tank from ready stock in New Delhi with real photos and video on this page — not a generic catalogue thumbnail. We support export buyers with commercial invoice, packing list and fitment confirmation via WhatsApp before shipment.
Before ordering, send a photo of your existing tank, cap marking and machine serial plate. We will confirm compatibility with JCB JS140 and advise on related cooling parts (radiator hoses, water pump, thermostat) if your machine is losing coolant repeatedly.
Key Features
Impact-resistant moulding for excavator engine bay
Integrated nozzles & sealed cap interface
Bolt-on brackets — standard workshop job
Replaces cracked or discoloured OEM tanks
Built for JCB JS140 cooling system duty
Maintains level & pressure in hot conditions
Technical Summary
| Attribute | Detail |
|---|---|
| Product | Coolant expansion tank / header tank |
| Primary machine | JCB JS140 excavator |
| Material | Translucent engineering plastic |
| Cap rating | 1.0 bar (as marked on unit) |
| Function | Coolant storage, expansion, de-aeration |
| Export | FOB New Delhi · Quote within 24h |
| HSN (typical) | 87089900 — confirm on invoice |
Compatible Models
| Machine / Series | Notes |
|---|---|
| JCB JS140 | Primary application — 14-tonne excavator class |
| JCB JS130 / JS145 / JS200 | Often searched together — confirm tank shape & hose layout |
| JCB 3CX / 4CX (backhoe) | Some listings group similar expansion tanks — verify before order |
| Other models | Send serial & old tank photo on WhatsApp |
OEM Part Number Cross-Reference
Buyers search these catalogue numbers on IndiaMART and Google. Send your old tank marking — we match before dispatch.
| Reference no. | Source / notes |
|---|---|
| 334/G3689 | Common Interpart / export listing for JS-series expansion tank |
| 334-G3688 | Alternate format (334-G3688) — same family |
| 333/K2338 | GK Engine Spares listing — JCB JS140 coolant tank |
| 334/K0052 | European OEM reference (JCB coolant expansion tank) |
We do not guess part numbers. Confirm fitment with your old unit image before export dispatch.
Applications
| Sector | Use case |
|---|---|
| Excavators | JCB JS140 and similar midi excavators on hire fleets |
| Construction equipment | Building sites, road works, urban utilities |
| Earthmoving machinery | Trenching, grading, material handling |
| Mining & quarry support | Auxiliary excavators in dusty, high-heat environments |
When to Replace the Coolant Tank
Why Buy From Pioneer Mitra
Air & sea from India · IEC BJDPB6241D
Real Delhi warehouse — photos before you pay
FOB quote within 24 hours
Fitment help · export documentation
Installation Overview
- Cool engine — release pressure carefully; never open hot cap.
- Drain coolant to safe container; note capacity for refill.
- Disconnect hoses; photograph routing for reassembly.
- Remove mounting bolts; lift old tank clear of obstructions.
- Fit new tank; torque brackets evenly; reconnect hoses.
- Refill with correct JCB-approved coolant mix; bleed air per workshop manual.
- Run engine to temperature; check for leaks at cap, nozzles and clamps.
Export & Delivery
| Destination | Typical transit |
|---|---|
| UAE / GCC | 5–7 days air freight |
| Nigeria / Kenya / Africa | 4–6 days air + export paperwork |
| India domestic | Delhi dispatch · courier available |
| Other countries | Quote on WhatsApp with qty & port |
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FAQ — JCB JS140 Coolant Tank
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