Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837/360-3987 PISTON ASSY SPARKLING MACHINERY
SPARKLING MACHINERY NEW CS56B CS68B CS74B CS78B 418-3837/360-3987 Piston Assy is a core engine combustion component for Caterpillar CS56B, CS68B, CS74B, and CS78B excavators (widely used in construction, mining, and infrastructure compaction tasks). As the "engine power generator", it moves reciprocally in the cylinder to compress fuel-air mixtures and transmit combustion force to the crankshaft—ensuring stable engine power output during high-intensity operations like heavy digging, rock breaking, and material handling, while maintaining efficient fuel combustion.
Meeting Caterpillar OEM standards (part nos. 418-3837/360-3987), it endures -30°C to 200°C cylinder temperatures, resists high-pressure impact and wear, and guarantees airtight combustion chamber performance. Strict testing ensures seamless compatibility with the four Caterpillar models and long-term engine reliability.
Your Caterpillar excavator’s engine power core begins here.
Now, we’re proud to present the CATERPILLAR EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837/360-3987 PISTON ASSY by SPARKLING MACHINERY. Next, we’ll cover its core strengths: seamless compatibility with four Caterpillar models, reliable combustion power transmission, rigorous quality, and more—helping you understand how it boosts your equipment’s engine efficiency and cuts maintenance troubles.
The SPARKLING MACHINERY NEW CS56B CS68B CS74B CS78B 418-3837/360-3987 PISTON ASSY Photo:
And first—thank you so sincerely, from the bottom of our hearts, for choosing SPARKLING MACHINERY’s 418-3837/360-3987 Piston Assy for your Caterpillar CS56B, CS68B, CS74B, or CS78B excavator! Your trust isn’t just a purchase to us; it’s the driving force behind our commitment to meeting Caterpillar’s strict standards for engine combustion components.
This piston assembly isn’t just a spare part—it’s your excavator engine’s "power generator"; a faulty one can cause combustion leaks, power loss, or even severe engine damage. Ours is engineered to fit and perform exactly like Caterpillar’s original, so you can count on it fully. Let’s dive into why it’s the perfect match for your machine.
Why choose the SPARKLING NEW CS56B CS68B CS74B CS78B 418-3837/360-3987 Piston Assy?
- Direct-fit compatibility: Exclusively tailored to match the exact cylinder bore size, piston pin diameter, and ring groove specifications of Caterpillar CS56B/CS68B/CS74B/CS78B engine cylinders. Marked with genuine part nos. 418-3837/360-3987, it aligns perfectly with existing cylinder liners, connecting rods, and piston rings—no machining, resizing, or adapter use is needed. This cuts replacement downtime by up to 30%, getting your Caterpillar excavator back to on-site work faster.
- Precision control: Features ultra-accurate dimensional tolerance (deviation <0.02mm for piston diameter) and optimized ring sealing design (matching Caterpillar’s original combustion chamber pressure standards), ensuring airtight fuel compression. It maintains efficient combustion—e.g., supporting CS78B’s high-load mining operations or CS56B’s urban construction tasks—preventing pressure leaks and fuel waste while maximizing engine power.
- Rigorous quality: Undergoes 18+ strict quality tests tailored to Caterpillar excavator engine conditions, including 300MPa compressive strength trials (no deformation), high-temperature resistance tests (-30°C to 200°C, 500+ cycles), wear resistance checks (no abnormal wear after 12,000 hours of use), and leak tightness trials (zero combustion gas seepage). It withstands high-temperature cylinder environments, dusty construction sites, and continuous mechanical impact without performance degradation.
- Professional support: Backed by a dedicated technical team with deep expertise in Caterpillar CS56B/CS68B/CS74B/CS78B engine systems and piston assembly maintenance. We offer 7×24 online assistance, including step-by-step installation guides (with model-specific piston ring installation torque charts and cylinder alignment tips), maintenance recommendations (e.g., periodic ring wear inspection, cylinder lubrication checks), and troubleshooting for issues like combustion leaks, engine misfires, or piston scuffing. Our team ensures an average response time of <2 hours.
- Cost-effective reliability: Delivers Caterpillar OEM-level performance at a competitive price, avoiding the premium of original dealer parts for piston assemblies. Its durable construction (high-temperature-resistant alloy material, wear-resistant piston crown coating) extends service life by up to 45% compared to generic alternatives, reducing long-term replacement costs by 30%. It also minimizes unplanned downtime caused by piston failure—preventing costly engine overhauls and delays in construction or mining projects.
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.
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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.






Sparkling Machinery Co.,Ltd
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