ranroswang@hksparkling.com 
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ZGAQ-03591 4472.348.074 Hub for Hyundai R160, R170 & Caterpillar M315, M315C Excavators
The ZGAQ-03591 (also known by the ZF part number 4472.348.074) is a hub/axle hub component used in the front and rear axle output groups of various Hyundai wheel excavators and other heavy machinery.
Key Features
· Cross-brand direct-fit design: Exact replication of mounting bolt circle, bearing bores, spline dimensions and flange specs for Hyundai R160/R170 & Cat M315/M315C—plug-and-play installation with no secondary machining or structural modifications required.
· Sealed wheel-end protection: Precision-machined seal grooves and O-ring seats create a dust/water-tight barrier (IP67-rated), preventing contamination and lubricant leakage to extend the service life of bearings and hub components.
Compatibility:
· Hyundai: R160, R170, R180 series wheel excavators.
· Caterpillar: M315, M315C, M315D, M316, M316C, M316D, M318, M318C, M318D, M320 series.
· CNH (Case New Holland): WE170B, WE190B.
· Doosan and Liebherr models.
Thank you for choosing SPARKLING MACHINERY for your Hyundai and Caterpillar wheel excavator axle system solutions. The ZGAQ-03591 (4472.348.074) wheel hub is a cross-brand OEM-compatible assembly engineered to perfectly match the original wheel-end specs of Hyundai R160/R170 and Cat M315/M315C excavators. With a high-strength cast alloy steel construction, precision machining and multi-layer anti-corrosion treatment, it delivers reliable load-bearing, smooth rotation and long-lasting performance in all heavy-duty working conditions.
The SPARKLING MACHINERY NEW ZGAQ-03591 4472.348.074 Hub Photo:
Why Choose SPARKLING ZGAQ-03591 4472.348.074 Hub?
- Cross-brand perfect fit guarantee: Exact matching of Hyundai and Caterpillar original design and installation specs—no secondary processing needed, saving labor costs and reducing installation downtime significantly.
- Robust heavy-duty durability: High-strength cast alloy steel with quenching & tempering heat treatment provides superior impact resistance and fatigue life, fully adapting to the harsh working conditions of construction and road maintenance.
- Sealed wheel-end protection: IP67-rated dust/water-tight design prevents contamination and lubricant leakage, extending the service life of bearings and reducing routine maintenance frequency.
- Stable rotational performance: Tight tolerance control on runout and concentricity ensures smooth wheel rotation, lowering operation noise and improving the travel stability of your excavators.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation
🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.
Sparkling Machinery Co.,Ltd
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Whatsapp: +8613609010879