Internal pressure drops in worn swing motors lead to slow rotation and weak braking torque on sloped ground. The RITO 1884164 Cylinder Block restores tight internal sealing to eliminate pressure loss. Upgrading to this premium block helps your equipment maintain sharp rotation and reliable holding power on tough job sites.
Item NO.:
1884164Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSLow-grade aftermarket cylinder blocks can wear down quickly under high swing pressures, leading to recurring breakdowns. This M5X180 Cylinder Block Rotor Group is built specifically for 325DL swing motors. It provides a durable, precision-fit solution that stands up to heavy-duty use.

| Part Number | 1884164 |
|---|---|
| Part Name | Hydraulic Motor Cylinder Block Rotor Group Swing Motor Parts |
| Compatible Brand | CAT |
| Applicable Models | 325DL (Kawasaki M5X180 Swing Motor) |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Matte Steel Grey |
| Working Temperature | -35°C to 115°C |
| Key Function | Reciprocating piston housing for hydraulic swing motors |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Forged steel block resists cracking and micro-porosity under high hydraulic pressures.

Micro-finished piston chambers minimize friction and reduce internal oil bypassing.

Tailored specifically as a direct repair component for standard 325DL swing groups.


FAQ
Q: What are the main signs that a 325DL swing motor's cylinder block has suffered internal wear?
A: Key signs include a noticeable loss of swing torque when accelerating, a grinding sound from the motor head, or the upper structure drifting when stopping on a slope due to internal oil bypassing.
Q: Is this 1884164 cylinder block shipped with the internal valve plate and pistons included?
A: This part number covers the high-precision cylinder block itself. We also offer full rebuild groups that include matching pistons, valve plates, and set plates to provide everything needed for a complete motor overhaul.
Q: What causes a swing motor cylinder block face to score, and how can we prevent it?
A: Scoring is usually caused by hydraulic oil contamination or operating at very high temperatures without enough lubrication. Installing a high-efficiency return filter and flushing the system regularly helps protect the block face from debris.
A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.
Q:Why Choose RITO?
A:Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
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