Cracked pump head covers cause high-pressure oil leaks, turning an active job site into a major safety hazard. Micro-fissures in weak aftermarket rear covers allow oil blow-by, dropping system pressure and slowing down operations. Stop pressure loss immediately with the robust RITO 313209 pump cover.
Item NO.:
313209Order(MOQ):
1Payment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANLead Time:
2-3 DAYSRestore original hydraulic containment and system pressure with this precision-cast end cap. Machinery repair workshops rely on the RITO 313209 rear housing component to provide mining clients with long-lasting structural integrity and reliable sealing performance.

| Part Number | 313209 / EX300-5 / ZX330 |
|---|---|
| Part Name | Hydraulic Pump Rear Cover Valve Cover |
| Compatible Brand | Tongmyung |
| Applicable Models | EX300-5, ZX330 HPV145 Hydraulic Pumps |
| Application | Excavator hydraulic system |
| Material | High‑strength Alloy Steel |
| Product Color | Matte Steel Grey |
| Working Temperature | -30°C to 120°C |
| Key Function | Sealing the rear pump group and routing high pressure oil |
| Condition | 100% New, Aftermarket / OEM Quality |
| Packaging | Wooden Case/Reinforced Carton/Neutral Packing / Customized Box |

Resist structural cracking from intense high-pressure pulses in the hydraulic circuit.

Ensure perfectly flat sealing surfaces to completely eliminate external oil leaks.

Deliver unrestrictive internal pilot oil flow for accurate regulator response.


FAQ
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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