ranroswang@hksparkling.com 
+86 138 2341 8469
Genuine 39K6-12101 Swing Reduction Gear for Hyundai HX220 & HX220L
The 39K6-12101 Swing Reduction Gear (Swing Gearbox) is a high-torque planetary reduction unit engineered specifically for Hyundai HX220 and HX220L 22-ton class crawler excavators.
Core Machine Compatibility
· Hyundai HX Series: HX220, HX220L, HX220NL, and HX220SL.
· It serves as a direct upgrade or operational alternate to the earlier iteration part number 39K6-12100.
Thank you for choosing SPARKLING MACHINERY.
The 39K6-12101 swing reduction assembly features precision-machined multi-stage planetary gear sets housed inside a heavy-duty cast casing. Engineered to absorb continuous shock loads and heavy lateral torque during rapid slewing, it ensures long service life and reliable upper structure control under demanding site conditions.
The SPARKLING MACHINERY NEW 39K6-12101 Swing Reduction Gear Photo:
The SPARKLING 39K6-12101 Swing Reduction Gear is a professional replacement component for Hyundai HX220 and HX220L excavators. As a key part of the swing drive system, it transfers power from the swing motor to the swing mechanism, helping the upper structure rotate smoothly, consistently, and efficiently.
--- Product Highlights
- Part Number: 39K6-12101
- Compatible Models: Hyundai HX220, HX220L
- Component Type: Swing reduction gear / swing gearbox component
- Application: Excavator swing drive and upper-structure rotation system
Manufactured for demanding excavator applications, this swing reduction gear is selected to support stable power transmission, accurate gear engagement, and reliable operation in construction, mining, earthmoving, and infrastructure projects. Its precise fit helps reduce installation difficulties and supports dependable performance when replacing worn or damaged swing drive components.
Before ordering, please confirm the excavator model, serial number, and existing part number to ensure compatibility. Different production years or configurations may use different components. SPARKLING MACHINERY provides technical consultation to help customers select the correct excavator part.
--- Why Choose SPARKLING MACHINERY?
Founded in 2013, SPARKLING MACHINERY specializes in high-quality excavator parts, including hydraulic components, undercarriage systems, engine parts, electrical components, cabs, mini excavators, and accessories. Strict manufacturing and quality-control processes support product stability, precision, and long-term service performance.
With global sales support, competitive pricing, and customized solutions, SPARKLING MACHINERY helps equipment owners, distributors, and repair professionals reduce downtime and maintenance costs.
FAQ
What are the primary signs that a 39K6-12101 swing reduction gear is failing?
Common indicators include excessive play or slipping when starting/stopping swing rotation, loud grinding or knocking noises from the swing tower, metallic debris in the gearbox oil, or severe gear oil leakage from the main shaft seal.
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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