ranroswang@hksparkling.com 
+86 138 2341 8469
Weichai 472-0209 Engine Forged Steel Crankshaft for Heavy Duty Excavators
The 472-0209 Heavy-Duty Forged Steel Crankshaft is a high-reliability internal engine powertrain component.
Compatible Engines and Machinery
This crankshaft is specifically built for the widely used Cat C4.4 4-cylinder diesel engine. It runs across an extensive lineup of Caterpillar industrial machinery:
· Mid-to-Small Excavators: Models including the Cat 312E, 312E L, 312F, 313F, 314F CR, 315F LCR, 316F L, 318F L, and certain 320 / 320 GC variants.
· Backhoe Loaders: Models including the Cat 416F, 416F2, 420F2, 430F2, 434F2, 444F2, and 450F.
· Wheel Loaders: Models like the Cat 910M, 914M, and 918M.
· Track-Type Tractors (Dozers): Models like the Cat D3K2 LGP, D4K2 XL, and D5K2 LGP.
· Paving Equipment: Cat AP500F and AP555F asphalt pavers, alongside CB10 soil compactors.
Thank you for choosing SPARKLING MACHINERY.
The 472-0209 engine crankshaft is manufactured from premium forged steel alloy, meticulously heat-treated via induction hardening to deliver maximum structural yield strength. Designed to survive severe torsional flexing, high-frequency harmonics, and aggressive combustion forces, this component features micro-polished main and rod journals to ensure an absolute hydrodynamic fluid film boundary. Replacing a scored, heat-cracked, or out-of-round crankshaft eliminates engine block thumping, stabilizes oil pressure parameters, and completely protects the surrounding rod and main bearings from premature structural fatigue.
The SPARKLING MACHINERY NEW 472-0209 CRANKSHAFT Photo:
Key Features & Benefits
- Forged high-strength steel: Forging delivers superior grain flow and tensile strength versus cast alternatives, increasing resistance to bending and fatigue under heavy loads.
- Precision heat treatment & surface finish: Optimized quenching and tempering increase core toughness while precision grinding of journals ensures smooth bearing surfaces and longer bearing life.
- Dynamic balancing & tight tolerances: CNC machining and dynamic balancing reduce vibration, improve combustion stability and lower wear on bearings and connecting rods.
- Enhanced reliability in harsh environments: Corrosion-resistant finishes and strict dimensional accuracy help maintain sealing and oil film integrity under heavy-duty cycles.
- Direct-fit replacement: Manufactured to match Weichai 472-0209 specifications for reliable installation and compatibility with applicable heavy excavator engines—minimizing rework and downtime.
- Quality control & traceability: Produced under SPARKLING MACHINERY’s robust QA processes, including dimensional inspection and non-destructive checks, ensuring consistent part performance.
Why Choose SPARKLING
Founded in 2013, SPARKLING MACHINERY focuses on high-quality excavator parts backed by extensive industry experience. We specialize in engine components for major brands and offer tailored technical support, competitive pricing and global logistics. Our commitment to stability, precision and perseverance ensures each crankshaft meets the operational demands of construction, mining and infrastructure projects.
Application
Ideal for heavy-duty excavators powered by compatible Weichai engines where the Weichai part number 472-0209 is specified. Suitable for maintenance, overhaul and fleet upgrade programs seeking durable, cost-effective engine rebuild parts.
Ordering & Support
For specifications, compatibility confirmation, or volume pricing, visit https://www.hksparkling.com or contact our sales engineer at ranroswang@hksparkling.com. SPARKLING delivers professional consultation and after-sales support to get your equipment back to work with confidence.
FAQ
What are the primary warning signs that an excavator's crankshaft is failing?
Common warning signs include a distinct, heavy metallic hammering or knocking noise coming from deep within the lower engine block, fine copper or silver bearing flakes accumulating inside the oil filter housing, erratic oil pressure fluctuations when the engine reaches peak temperature, or excessive front accessory pulley wobble.
What causes a heavy-duty diesel engine crankshaft to crack or snap?
Crankshaft breakage is typically caused by severe main bearing seizure (due to oil starvation), a failed external harmonic balancer pulley, or persistent engine hydraulic lock. If oil delivery fails, the intense heat friction-welds the bearing shell to the journal, snapping the shaft. Alternatively, if the external rubber damper pulley degrades, unchecked engine harmonics will ripple back through the steel until a fatigue crack shears the shaft completely.
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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