Description
Detail Information
| Delivery Time 1-5 days | Payment Terms T/T, XT, PayPal, Western Union | Supply Ability 1000 pieces per month | Applicable Industries Machinery Repair Shops, Retail, Construction, Energy, Mining |
| Category Center Joint / Swivel Joint / Rotary Manifold | Body Material Steel | Warranty 6 months | Highlights Excavator replacement parts, excavator hydraulic components |
| Shipping Sea freight / Air freight / Express |
1. Key Features & Benefits
Direct fit for CAT312 excavators – Engineered to replace original parts seamlessly, no modification required.
Heavy-duty steel construction – Built to withstand extreme hydraulic pressure and continuous 360° rotation.
Enhanced sealing performance – Minimizes internal leakage and cross-circuit contamination for stable hydraulic flow.
Wear-resistant & durable – Heat-treated surfaces and anti-rust coating extend service life in tough conditions.
OEM quality at lower cost – Same reliability as genuine Caterpillar parts, more budget-friendly.
Fast delivery – 1–5 days lead time, shipped in wooden cases or customized packaging.
2. Applications
Mechanical repair shops – Ideal replacement for worn or leaking center joints on CAT312.
Construction sites – Ensures reliable oil transfer during excavator slewing.
Mining & quarrying – Performs well under dust, vibration and heavy loads.
Energy projects – Pipe laying, earthmoving and material handling.
Retail & wholesale – A fast-moving spare part for CAT312 excavator owners.
3. Why Choose Hongtengda Parts?
Over 25 years of experience – Founded in 2001, specializing in excavator, loader and crane parts for Caterpillar, Komatsu, Hitachi, Kobelco, SANY, XCMG, Liugong and more.
90% stock availability – CAT312 center joint lower parts are ready for immediate dispatch.
24-hour shipment – From our Guangzhou hub to your forwarder in 1 day; international orders shipped within 24h.
Professional export packing – Fumigation-free wooden cases / pallets for sea or air freight.
One-stop sourcing – We also supply pins, bushings, seals, pumps, filters and undercarriage parts.
Technical support – Our own repair workshop and engineers help you confirm fitment and solve installation issues.
Send us your CAT312 serial number or a photo of the old part – we will verify compatibility within 24 hours.













