8D-5096 8D5096 Caterpillar TRANSMISSION O-Ring Seal
8D-5096 8D5096 Caterpillar TRANSMISSION O-Ring Seal For D5 D6 527 Parts
🔩 Product Specifications
- Part Number:8D-5096
- Interchange Number:8D5096 / CA8D5096 / 8D-5096
- Part Name:O-Ring Seal (Seal-O-Ring)
- Engine Model:Caterpillar C7.1 / 3408 Diesel Engine
- Application:Caterpillar 517 / 527 Track Skidder, D4H / D5H / D5M / D5N / D6M / D6N Track-Type Tractor, 621 / 623 / 627 Wheel Tractor-Scraper
- Condition: 100% Brand New Replacement
- Availability: In Stock & Ready to Ship Globally
Installation：
1. Thoroughly clean the sealing groove and surrounding mating surfaces to eliminate debris, rust, or old seal fragments.
2. Inspect the groove for any sharp scratches or burrs that could cut the new O-ring during assembly.
3. Lightly coat the new 8D-5096 O-ring with clean system hydraulic oil or transmission fluid before fitting.
4. Carefully stretch the seal uniformly over the component and seat it squarely into the groove without twisting or over-elongating the rubber.
5. Ensure the O-ring is fully embedded along the entire perimeter before joining the structural housings.
FAQ：
* **What material is this O-ring made from?** It is molded from high-grade Nitrile (NBR) Rubber with a 75 Duro hardness rating for reliable oil and wear resistance.
* **What are the precise technical dimensions?** It features a cross-section diameter of 5.33 mm and an inner diameter (ID) of 643.38 mm.
* **Can this seal be reused after opening the transmission casing?** No, it is best practice to always replace the 8D-5096 seal during service to guarantee a leak-free interface under high operational pressures.
Failure Symptoms：
* Transmission fluid or hydraulic oil weeping or puddling beneath the planetary gear housing or scraper joints.
* Noticeable loss of system operating pressure, leading to sluggish hydraulic responses or clutch slippage.
* Internal fluid bypass or aeration within the planetary transmission group due to seal flattening or hardening.
Maintenance：
* Visually check the casing joints for signs of fluid sweating during daily pre-operation inspections.
* Maintain clean transmission fluids and replace system filters on schedule to avoid abrasive particles scoring the seal face.
* Include this O-ring in standard preventative maintenance kits during scheduled major mid-life or full transmission overhauls.
🌟 Why Sourcing From WinsParts?
As a leading heavy machinery parts operator based in Guangzhou, China, Guangzhou Wins Construction Machinery Co., Ltd. is a trusted B2B supply chain partner dedicated to delivering reliable, premium-grade components to global buyers.
- Expertise in Hitachi & Kobelco: We specialize in a comprehensive range of excavator spare parts specifically optimized for Hitachi (Zaxis series) and Kobelco (SK series) heavy machinery, from hydraulic pump parts to electronics.
- Heavy-Duty Engine Specialization: Deep inventory and robust supply chain support for world-class diesel engine internals, focusing on ISUZU, MITSUBISHI, HINO, and KOMATSU engine series.
- Strict Technical Audit: 100% dimensional and fitment checks using official parts catalogs to ensure accurate compatibility based on your exact part numbers and machine serial numbers.
- Reliable Global Supply Chain: Extensive export experience to America, Europe, the Middle East, and Africa with premium air freight and seaworthy protective packaging to minimize your fleet downtime.
📩 How to Get an Instant Quote?
Due to market fluctuations in material and exchange rates, excavator parts prices change dynamically. To get the latest accurate wholesale price and real-time shipping costs:
- Click the WhatsApp Button on our website for an immediate response from our team.
- Submit an Inquiry via the dedicated product tab below with your required quantity.
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.
