Screw-in water temperature sensor for thermostat housings. It monitors coolant temperature and provides a signal to the gauge or ECU, helping protect the engine from overheating. Robust metal body ensures reliable operation in harsh jobsite conditions.
Technical note: Designations (AA, AB, AJ, AR, YA, YB) refer to Perkins codes mainly from the 1004.4 and 1006.6 engine families, widely used in JCB, CAT, Hyster, Hyundai, Bobcat. These codes reflect accessory differences (housings, brackets, cooling assemblies). Always confirm your engine’s serial number before ordering.
GX-AFTER offers vetted aftermarket parts with OEM-like performance and fast availability.
| Brand (Machine type) | Model |
|---|---|
| JCB (Backhoe loaders) | 2CX, 2DX, 3CX, 4CX (Perkins variants) |
| JCB (Telehandlers) | Loadall (selected older Perkins models) |
| JCB (Tractors) | FASTRAC (Perkins-powered models) |
| JCB (Other machines) | ROBOT, dumpers, wheel loaders (Perkins) |
The list above is indicative. Please verify that your machine is equipped with a Perkins engine.
1. Prepare threads and seat
Remove old sealant and debris. Use a new gasket or OEM-specified sealant.
2. Tighten progressively
Increase torque gradually to avoid thread/probe damage.
3. Electrical connection
Ensure a clean, corrosion-free connector with firmly seated pins.
4. Post-install test
Warm up the engine and observe the gauge — readings should rise smoothly.
5. Periodic inspection
During cooling system service, inspect the sensor, wiring and sealing.
Do not over-tighten — excessive torque can damage the thread or sensing element. Install straight and use the proper seal.
The sensor provides critical coolant temperature feedback to protect the engine and inform the operator.
Downtime is costly — choose a proven component and fast shipping.
We dispatch 716/12800 directly from stock and match it to your engine setup for a smooth installation.
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1. What alternative numbers match 716/12800?
71612800, 716-12800, 716/12800A.
2. Is this sensor compatible with Perkins AA, AB, AJ, AR, YA, YB engines?
Yes — provided the correct thermostat housing and connector are used.
3. What are the approximate fitment dimensions?
Thread approx. M20×1.5, probe approx. 22 mm, hex approx. 22 mm.
4. The gauge doesn’t respond after replacement — what should I check?
Connector corrosion, broken wiring, incorrect installation or a faulty sensor.
5. Can the sensor operate “dry” without coolant?
No — it must contact coolant to measure accurately and protect the engine.
Need help or urgent dispatch? Call us — we’ll confirm fitment and ship promptly.
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