Description
Product Overview
The Cross Creek Tractor transmission output shaft oil seal is engineered to replace part numbers C5NN77086A and 81808572. Constructed from premium synthetic rubber, the seal offers excellent resistance to oil, heat, and abrasion, ensuring a tight barrier against fluid leakage. Its precision‑molded design matches the original equipment dimensions, providing a seamless fit on the output shaft of automatic transaxles. With a 1‑year warranty, this new aftermarket part delivers confidence and durability for daily farm operations.
Usage
Designed for agricultural tractors, this seal is ideal for farmers, equipment service technicians, and DIY mechanics who need a dependable replacement for worn or damaged seals. It performs best in environments where the transmission is exposed to high temperatures, dust, and constant oil pressure. Installation requires standard tools and can be completed during routine maintenance or after a seal failure to restore optimal drivetrain performance.

Why Choose Us
Cross Creek Tractor is a trusted name in farm equipment components, known for rigorous quality control and precise engineering. Our seals undergo multiple testing stages, including pressure endurance and material aging, to guarantee a leak‑free operation. The aftermarket part offers OEM‑level performance at a competitive price, backed by a full 1‑year warranty for peace of mind.
Key Features
- Premium synthetic rubber resists oil degradation and high temperatures
- Exact OEM dimensions for a perfect fit on C5NN77086A applications
- Easy installation with standard tools, reducing downtime
- 1‑year warranty ensures reliability and customer confidence
- Designed for heavy‑duty agricultural use, extending transmission life
FAQ
What tractor models use the C5NN77086A seal?
The C5NN77086A seal is commonly used in various Cross Creek Tractor models equipped with automatic transaxles. Refer to your tractor’s service manual or the parts list to confirm compatibility.
Can I install the seal myself?
Yes, the seal is designed for straightforward installation using basic hand tools. Follow the included instructions and ensure the shaft is clean before fitting.
How does this seal differ from OEM parts?
Our seal matches OEM specifications in material quality and dimensions, offering comparable performance while providing the cost advantage of an aftermarket product.
What is the warranty coverage?
The seal comes with a 1‑year limited warranty covering defects in material and workmanship. It does not cover damage caused by improper installation or misuse.
Is this seal compatible with other brands?
While primarily intended for Cross Creek Tractor, the seal may fit other brands that use the same part number specifications. Verify dimensions before purchase.




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