343-2873 Plastic Straight Bellow Seal for Caterpillar 735C 740C 745C
343-2873 Caterpillar Plastic Straight Bellow Seal | Fits 735C 740C 745C
Product Information
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- Replacement Brand: Caterpillar
- Category: Seals & Gaskets – Bellow Seal
- Part Number: 343-2873
- Part Name: Plastic Straight Bellow Seal
- Alternative OEM: 3432873
- Compatible Equipment: Caterpillar 735C, 740C, 745C, 740 GC, 735B, 740B
- Condition: New Aftermarket Replacement
Product Function & Specs:
343-2873 is a plastic straight bellow seal used in the front suspension frame of selected Caterpillar articulated and ejector trucks. The seal helps protect the associated assembly from external contamination. Caterpillar lists an inside diameter of 5.94 inches, an outside diameter of 9.7 inches, and a width of 2.56 inches.
Failure Symptoms:
- Cracking, splitting, or visible deterioration of the bellow seal
- Contamination entering the protected suspension-frame area
- Loose, damaged, or displaced seal around the mounting area
Quick Installation Notes:
- Inspect the mounting area and remove accumulated dirt before installation.
- Confirm the seal dimensions and mounting configuration against the applicable parts diagram.
- Ensure the bellow seal is correctly positioned and securely seated after installation.
Maintenance Tips:
- Inspect the bellow seal periodically for cracks, cuts, and deformation.
- Keep the surrounding suspension-frame area clean during routine maintenance.
- Replace damaged seals promptly to help limit contamination of protected components.
FAQ:
Q: What is part number 343-2873?
A: It is a Caterpillar plastic straight bellow seal for front suspension frame applications.
Q: Which machines use this bellow seal?
A: Caterpillar lists applications including 735C, 740C, 745C, 740 GC, 735B, and 740B. Confirm the machine configuration before ordering.
Q: What are the listed dimensions?
A: The published dimensions are 5.94 inches inside diameter, 9.7 inches outside diameter, and 2.56 inches width.
Q: Is this an OEM or aftermarket replacement?
A: This page describes a new aftermarket replacement. Genuine OEM status has not been verified.
Q: Can I purchase this seal in bulk?
A: Yes. Contact WinsParts for wholesale enquiries and application verification.
Why Sourcing From WinsParts?
WinsParts supports part-number and application checking to help parts distributors and repair workshops reduce ordering errors.
Global Logistics & Secure Transit
We deliver high-performance construction machinery parts to wholesalers, repair shops, and operators worldwide. To minimize your machinery downtime, we offer flexible shipping options tailored to your urgency and budget:
Our Reliable Shipping Methods:
- Express Delivery (DHL, FedEx, UPS): 3–7 business days worldwide. Best for urgent orders (e.g., electronic controllers, injector nozzles, seal kits).
- Standard & Economy Shipping: 7–21 days depending on the destination. Ideal for cost-effective transit with full end-to-end tracking.
- Sea Freight & Air Cargo: Recommended for heavy assemblies such as complete engine blocks, hydraulic main pumps, and undercarriage track links.
Dispatch Timeline:
- Orders for in-stock items placed before 2:00 PM (GMT+8, Monday–Friday) are dispatched the same day.
- Later orders or customized orders will be shipped the next working day.
Critical Selection Reminder: Please make sure your Part Numbers match our product listings. If you are unsure, simply contact our engineering team via WhatsApp. We will cross-verify compatibility using official electronic catalogs (SIS/EPC) based on your machinery nameplate.
Payment Methods & Export Terms
To ensure a smooth B2B procurement experience, WinsParts supports multiple secure global payment methods:
- International Credit/Debit Cards: Secure online processing via Visa, Mastercard, and major global gateways.
- Digital Wallets: Fast and verified transfers via PayPal and Stripe.
- Bank Telegraphic Transfer (T/T): Recommended for large-scale wholesale orders. A formal Proforma Invoice (PI) containing our official corporate bank details will be sent via email upon order confirmation.
Export Customs & VAT Policy:
- All prices displayed on our website are exclusive of local VAT and destination import duties unless specified otherwise.
- Full shipping documentation—including Commercial Invoices, Packing Lists, and Certificates of Origin (CO)—is provided with every shipment to ensure seamless customs clearance in your country.
Gz Wins Construction Engineering Co., Ltd. is a premier manufacturer and global supplier specializing in the diversification of engineering machinery parts. With over a decade of industry expertise, we integrate development, production, and professional marketing to provide a one-stop solution for the world’s most demanding machinery brands.
We don’t just sell parts; we manage reliability. Our products are rigorously tested and successfully exported to America, Europe, Southeast Asia, the Middle East, and Africa. We pride ourselves on maintaining a massive inventory that ensures your machinery downtime is kept to an absolute minimum.
Strategic Brand Specialization
We are the preferred choice for heavy machinery operators who prioritize uptime and performance. Our inventory is specifically optimized for:
KOBELCO Excavators: * Unrivaled stock of Genuine Engine Components series.Full range of Hydraulic Pump & Valve solutions to restore factory-speed operation.
HITACHI Excavators: * Comprehensive parts support for Zaxis series, from ISUZU engine internals to advanced electronic controllers.
Why Professional Buyers Choose Us:
Technical Match Precision: We use official parts catalogs to ensure 100% compatibility based on your machine’s serial number.
Global Supply Strength: Specialized export experience to America, Europe, and the Middle East ensures smooth logistics for your KOBELCO and HITACHI parts.
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