Excavators Spare Parts 5KG 6620-31-3012 CONNECTING ROD for Komatsu Engine NH-220 units D60A-6 D60P-6 D65A-6 D65S-7 D80A-12 D85A-12
The Excavators Spare Parts 5KG 6620-31-3012 CONNECTING ROD is a core powertrain component for Komatsu NH-220 engines and D60A-6/D60P-6/D65A-6/D65S-7/D80A-12/D85A-12. It ensures efficient torque transmission with 5KG weight, delivers stable heavy-duty performance, and seamlessly integrates with Komatsu’s system in harsh construction environments.
Key Features
· 5KG standard weight for optimal powertrain balance
· Custom-engineered for Komatsu NH-220 engines and target equipment models
· High torque-bearing capacity to withstand heavy-load operations
· Precision-machined interfaces for smooth power transfer
· Compliant with Komatsu OEM specifications for seamless integration
Compatible Models
· Komatsu Engines: NH-220 units
· Komatsu Construction Equipment: D60A-6, D60P-6, D65A-6, D65S-7, D80A-12, D85A-12
Dear Valued Partners,
Thank you for placing your trust in SPARKLING MACHINERY—your confidence is the driving force behind our commitment to crafting top-tier, reliable spare parts that keep your Komatsu equipment operating at its peak. Today, we are honored to present the Excavators Spare Parts 6620-31-3012 CONNECTING ROD, a product engineered with meticulous precision and durability at its core to complement Komatsu’s renowned NH-220 engine-powered construction machinery.
Whether you’re replacing a worn powertrain component or proactively upgrading to reinforce engine performance, this connecting rod is designed to exceed your expectations with its robust functionality, seamless fit, and long-lasting reliability—empowering your equipment to tackle demanding work scenarios with unwavering power and efficiency.
The SPARKLING MACHINERY NEW 6620-31-3012 CONNECTING ROD Photo:
Why Choose the SPARKLING Excavators Spare Parts 6620-31-3012 CONNECTING ROD?
- Direct-fit compatibility: Precisely manufactured to match the exact dimensions, mounting specifications, and mechanical interfaces of Komatsu NH-220 Engine units and target equipment models. No modifications, machining, or adapter parts are required, enabling hassle-free installation that aligns with original equipment standards and minimizes costly downtime.
- Precision control: Advanced CNC machining ensures ultra-accurate tolerances for pin bores and crankshaft journals, guaranteeing perfect alignment with piston and crankshaft. This precision optimizes power transmission efficiency, reduces vibration, and prevents premature wear of adjacent engine components—critical for maintaining consistent engine performance.
- Rigorous quality: Undergoes comprehensive quality testing, including torque load-bearing trials, fatigue resistance cycling (simulating thousands of engine operations), dimensional accuracy verification, friction coefficient measurements, and compatibility checks with Komatsu OEM engines. Every unit adheres to Komatsu’s strict quality criteria to ensure reliable operation in extreme construction environments—from dusty job sites to high-temperature operating conditions.
- Professional support: Our team of Komatsu-specialized technical experts provides end-to-end support—from pre-purchase compatibility confirmation to post-installation guidance on assembly techniques, clearance inspection, and engine maintenance best practices—ensuring a seamless integration experience for every customer.
- Cost-effective reliability: Offers exceptional durability and performance at a competitive price point. By preventing costly engine failures caused by connecting rod wear or damage, reducing maintenance frequency and associated costs, and extending the overall lifespan of the NH-220 engine, this connecting rod maximizes the return on your investment in Komatsu construction equipment.
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.
Sparkling Machinery Co.,Ltd
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