Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY
Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY

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.

Machine Model
CS56B CS68B CS74B CS78B
Part Number
418-3837/360-3987
Quality
China made
Condition
New
Gross Weight
2 Kg
MOQ
1 Pcs
Get a free quote
Details
Package Type
Mode of Transport
Payment Method
FAQS

   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:

 

Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY Caterpillar EXCAVATOR PARTS MADE IN CHINA NEW CS56B CS68B CS74B CS78B 418-3837 360-3987 PISTON ASSY SPARKLING MACHINERY

 

   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.

  1. 📦 Packing

  2.  

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

302020

403030

454040

🚚 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.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_665 not exceed 150 characters
Please enter your content not exceed 3000 characters
You may also like

KOMATSU HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW DX180 K9004306 GEAR DRIVE SPARKLING MACHINERY

KOMATSU HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW DX180 K9004306 GEAR DRIVE SPARKLING MACHINERY

Atlas Copco HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 1089037601 TEMPERATURE SWITCH SPARKLING MACHINERY

Atlas Copco HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 1089037601 TEMPERATURE SWITCH SPARKLING MACHINERY

Caterpillar HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 302.7D 386-0875 3860875 RELIEF VALVE SPARKLING MACHINERY

Caterpillar HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 302.7D 386-0875 3860875 RELIEF VALVE SPARKLING MACHINERY

Caterpillar HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 120G 120H 130G 140G 140H 135H 6L-8617 RADIATOR CAP SPARKLING MACHINERY

Caterpillar HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 120G 120H 130G 140G 140H 135H 6L-8617 RADIATOR CAP SPARKLING MACHINERY

Hitachi HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW FV30 ZX450 ZX450H ZX450H-HHE ZX460LCH-AMS 4435106 CUSHION SPARKLING MACHINERY

Hitachi HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW FV30 ZX450 ZX450H ZX450H-HHE ZX460LCH-AMS 4435106 CUSHION SPARKLING MACHINERY

Hyundai HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 100D-7 50DE 50DEACE 50DF 50DS-7E 80D-7 11LD-20240 HEAD FILTER SPARKLING MACHINERY

Hyundai HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 100D-7 50DE 50DEACE 50DF 50DS-7E 80D-7 11LD-20240 HEAD FILTER SPARKLING MACHINERY

CATERPILLAR HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 301.4C 3792809 TURBOCHARGER SPARKLING MACHINERY

CATERPILLAR HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW 301.4C 3792809 TURBOCHARGER SPARKLING MACHINERY

HYUNDAI HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW R170W7 R170W7A R170W9S R180W9S ZGAQ-02236 SEAL-SHAFT SPARKLING MACHINERY

HYUNDAI HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW R170W7 R170W7A R170W9S R180W9S ZGAQ-02236 SEAL-SHAFT SPARKLING MACHINERY

HYUNDAI HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW HL780-7A HL7803A R200W7 ZGAQ-00100 HUB SEAL SPARKLING MACHINERY

HYUNDAI HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW HL780-7A HL7803A R200W7 ZGAQ-00100 HUB SEAL SPARKLING MACHINERY

HYUNDAI HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW HW210 R200W7 R200W7A R210W-9 ZGAQ-02341 FORK-JOINT SPARKLING MACHINERY

HYUNDAI HIGH-QUALITY EXCAVATOR PARTS MADE IN CHINA NEW HW210 R200W7 R200W7A R210W-9 ZGAQ-02341 FORK-JOINT SPARKLING MACHINERY
Contact customer service

How can we help?

Hi,

If you are interested in our products/engineered customized solutions or have any doubts, please be sure to let us know so that we can help you better.

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_665 not exceed 150 characters
Please enter your content not exceed 3000 characters
×

Get a free quote

Hello,
I am very interested in this product of yours.
Please send me your product details, price, specifications, and similar models.
Looking forward to your quick reply.
Thanks!

Please enter your name not exceed 100 characters
The email format is not correct or exceed 100 characters, Please reenter!
Please enter a valid phone number!
Please enter your field_665 not exceed 150 characters
Please enter your content not exceed 3000 characters
×