Description
Product Overview
The GKZKNG RTS-1073 thermostat outlet gasket is engineered from high‑quality EPDM rubber, a material renowned for its exceptional heat resistance, flexibility, and longevity in harsh automotive environments. This gasket serves as a direct replacement for the original RTS-1073 outlet, matching OEM specifications to ensure a perfect fit within the engine coolant housing. With dimensions of 2.17 x 1.73 x 0.43 inches and a lightweight design of just 0.18 ounces, it integrates seamlessly into a wide range of Ford models, including the F‑150, F‑250, Expedition, Mustang, and Ranger. The integrated O‑ring creates a secure, leak‑resistant seal that maintains optimal engine temperature and prevents coolant loss.
Usage
Designed for both professional technicians and experienced DIY mechanics, this gasket is ideal for routine thermostat replacements, engine overhauls, or cooling system repairs. It performs reliably under high‑temperature conditions and constant exposure to coolant, making it suitable for daily driving, heavy‑duty work, and off‑road adventures. Whether you are servicing a fleet vehicle or a personal ride, the RTS-1073 provides confidence that the cooling system will operate efficiently.

Why Choose Us
GKZKNG stands behind its products with rigorous quality control and testing to meet or exceed OEM standards. The RTS-1073 gasket is manufactured in a clean‑room environment, ensuring no contaminants compromise the seal. Our commitment to durability means you receive a component that resists cracking, swelling, and degradation over time, reducing the need for frequent replacements. Additionally, the gasket ships ready to install—no additional sealants or special tools are required, saving you time and labor costs.
Key Features
- Durable EPDM rubber construction for heat and coolant resistance
- Integrated O‑ring design delivers a leak‑free seal
- Direct OEM replacement fits Ford part numbers 5 085 715, BC34‑8D058‑EA, BC34‑8D058‑EB, BC3Z‑8590‑F
- Compatible with F‑150, F‑250, Expedition, Mustang, Ranger and similar models
- Easy installation—no sealant or special tools needed
FAQ
Is this gasket compatible with my 2022 Ford F‑150?
Yes, the RTS-1073 gasket matches the OEM part numbers used in the 2022 Ford F‑150 and provides a direct fit without modifications.
Do I need to apply sealant during installation?
No additional sealant is required. The integrated O‑ring creates a complete seal when properly torqued.
Can I use this gasket on non‑Ford vehicles?
The gasket is specifically engineered for Ford applications. While it may fit some similar designs, we recommend using the OEM‑specified part for other brands.
What tools are needed for installation?
Standard hand tools such as a socket set and torque wrench are sufficient. No specialty equipment is necessary.
How does EPDM compare to other gasket materials?
EPDM offers superior resistance to heat, ozone, and coolant chemicals, making it more durable than typical rubber or silicone alternatives.




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