ranroswang@hksparkling.com 
+86 138 2341 8469
COUPLING FOR CATERPILLAR 236D 242D 246D 257D 259D CA3453548 345-3548 3453548
The Coupling (CA3453548 / 345-3548 / 3453548) is a high-quality replacement component designed for Caterpillar skid steer loaders and compact equipment, including models 236D, 242D, 246D, 257D, and 259D. This coupling ensures secure and reliable connection between shafts in hydraulic or drive systems, enabling efficient power transmission while reducing vibration and wear. Manufactured to meet or exceed OEM specifications, it delivers durable performance and long service life in heavy-duty construction and industrial applications.
Key Features
OEM-Compatible Fit: Direct replacement for Caterpillar part numbers CA3453548 / 345-3548 / 3453548 for accurate fit and performance
Durable Construction: Made from high-strength steel or alloy for superior wear resistance and long-term reliability
Efficient Power Transmission: Ensures smooth torque transfer and reduces vibration in drive or hydraulic systems
Benefits
Restores reliable power transmission and machine performance
Reduces wear and vibration in connected systems
Extends service life of hydraulic or drive components
Simplifies maintenance with direct OEM-fit replacement
Part Numbers: CA3453548 | 345-3548 | 3453548
Overview
As an experienced product manager in excavator parts, I present the SPARKLING coupling engineered specifically as a direct-fit, high-reliability replacement for Caterpillar models 236D, 242D, 246D, 257D and 259D (part numbers CA3453548 / 345-3548 / 3453548). Designed for demanding jobsite conditions, this coupling delivers precision fit, long service life, and stable power transmission to minimize downtime and maintenance costs.
Key features & benefits
- Exact fit for Caterpillar 236D/242D/246D/257D/259D: Manufactured to strict dimensional tolerances to ensure seamless installation and OEM-equivalent performance.
- High Quality materials & heat treatment: High-strength alloy steel with controlled heat treatment increases fatigue resistance and wear life.
- Precision machining & balanced assembly: CNC machining and dynamic balancing reduce vibration and runout for smoother operation and longer component life.
- Corrosion-resistant finish: Surface coatings protect against rust and abrasive environments, extending service intervals.
- Rigorous quality control: Each coupling undergoes dimensional inspection, hardness testing and non-destructive testing (NDT) to meet SPARKLING’s stability and precision standards.
- Compatibility & interchangeability: Fits all specified Caterpillar models as a reliable aftermarket alternative, backed by technical documentation and installation guidance.
- Support & customization: SPARKLING offers technical support, customization options for special applications, and global logistics to ensure fast delivery.
Why choose SPARKLING
Founded in 2013, SPARKLING MACHINERY focuses on high-quality excavator parts, combining strict manufacturing control with competitive pricing. Our coupling for Caterpillar 236D/242D/246D/257D/259D reflects our commitment to stability, precision and perseverance—helping you reduce operating costs while maintaining machine reliability.
Ordering & support
For pricing, lead times, or technical datasheets, contact SPARKLING MACHINERY sales. We provide installation guidance, warranty terms and global shipping to get your machine back to productive work quickly.
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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
foreverlucia1