Left rear window handle with part number 331/28233 from the GX-AFTER offer. It is a locking element dedicated to P21 (Project 21) type cabs, used in JCB machines manufactured after 2001. The handle is used to open, close, and lock the rear window in a tilted or closed position. Mounted on the left side (viewed from the operator's seat facing forward).
GX-AFTER products are characterized by precise reproduction of the original geometry, which ensures smooth operation of the latch mechanism and tight window closing, protecting the cab interior from dust and noise.
| Machine Type | Models |
|---|---|
| Backhoe Loaders | 2CX, 3CX, 4CX, 5CX (T0, T2, T3, T4i, T4F, STV models produced after 2001) |
| Mini Excavators (New Gen) | 15C-1, 16C-1, 19C-1, 25Z-1, 26C-1, 35Z, 36C-1, 37C, 48Z-1, 50Z, 51R-1, 55Z-1, 56Z-2, 57C-1, 60C-2, 65R-1, 67C-1, 85Z, 86C, 90Z, 100C |
| Mini Excavators (8000 Series) | 8013, 8014, 8015, 8016, 8018, 8020, 8025, 8026, 8029, 8030, 8035, 8040, 8045, 8050, 8055, 8065 (ZTS, RTS, CTS) |
| Tracked Excavators (JS) | JS120, JS140, JS200, JS205, JS220, JS305, JS385 |
| Others | Hydradig 110W, MIDI CX |
The handle is dedicated to the LEFT side. The right side has a different part number (331/28234).
When replacing the handle, we recommend checking the condition of the catch plate on the cab pillar. If the catch is worn, the new handle may not hold the window tightly.
A malfunctioning rear window handle can cause it to open spontaneously during machine transport or operation, risking glass breakage. An unclosed window also means noise, dust, and moisture in the cab, worsening the operator's working conditions.
Handle 331/28233 is responsible for locking the rear window.
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No. Machines before 2001 (with the so-called grey cab / P12) had a different window closing system. This handle is dedicated exclusively to P21 cabs (black, rounded).
No, this is a rear window (glass) handle. Door handles are larger, have a key lock, and a different mounting system (e.g., 332/A3731).
The "Project 21" cab introduced by JCB at the beginning of the 21st century was a revolution in operator comfort. The use of large, curved windows (including the rear one, operated by this handle) drastically improved visibility and reduced noise, becoming a benchmark for the industry.
Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.
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Rear window handle - LEFT - Cab P21 suitable for JCB 3CX 4CX

















