Description
Product Overview
The Apobelor Engine Coolant O‑Ring Kit is engineered for durability and performance. Crafted from high‑quality HNBR (hydrogenated nitrile butadiene rubber), the O‑rings resist oil, heat up to 120 °C, and maintain flexibility over a wide temperature range. The kit includes three pieces: one small O‑ring for the Y/T connector and two larger O‑rings for the upper and lower radiator hose quick‑connect fittings. Each O‑ring is silver‑colored, measuring 16 oz total material, and packaged in a compact 3.78 × 2.01 × 0.67 in box weighing just 0.352 oz. Designed to replace part number DR3Z8566A, this kit fits Ford F‑150 (2011‑2018, 5.0 L V8), F‑250/F‑350 Super Duty (2011‑2018, 6.7 L V8), Expedition (2015‑2017, 3.5 L V6), and compatible Lincoln models.
Usage
Ideal for DIY enthusiasts and professional mechanics, this O‑ring kit restores the sealing integrity of engine coolant systems. Install the small O‑ring on the thermostat‑to‑water‑pump Y/T fitting, then place the larger O‑rings on the upper and lower radiator hose connectors. The tool‑free installation process makes it perfect for routine maintenance, coolant system repairs, or emergency leak fixes on trucks and SUVs that operate in demanding environments. 
Why Choose Us
Apobelor combines rigorous material testing with precise manufacturing tolerances to deliver O‑rings that exceed OEM specifications. The HNBR compound offers superior heat resistance and chemical stability, ensuring long‑term performance even under high‑temperature coolant cycles. Each kit undergoes quality inspection and is backed by a satisfaction guarantee, giving you confidence that your engine cooling system will remain leak‑free.
Key Features
- Premium HNBR material provides excellent heat and oil resistance.
- Three‑piece set includes one small and two large O‑rings for complete coolant tee repair.
- Fits a wide range of Ford and Lincoln models from 2011‑2018.
- Tool‑free installation saves time and reduces labor costs.
- Compact packaging and lightweight design for easy storage and transport.
FAQ
What vehicles are compatible with this O‑ring kit?
The kit is compatible with Ford F‑150 (2011‑2018, 5.0 L V8), Ford F‑250/F‑350 Super Duty (2011‑2018, 6.7 L V8), Ford Expedition (2015‑2017, 3.5 L V6), and corresponding Lincoln models that use the 926‑168 coolant tee.
Do I need special tools to install the O‑rings?
No special tools are required. The O‑rings are designed to snap into place on the existing fittings. Clean the surfaces, apply a light coat of coolant, and press the O‑rings into position.
How does HNBR compare to standard NBR O‑rings?
HNBR offers higher temperature tolerance (up to 120 °C) and better resistance to oil, fuel, and coolant chemicals, resulting in longer service life and more reliable sealing under demanding conditions.
Can I reuse the O‑rings after removal?
While the HNBR material is resilient, it is recommended to replace O‑rings during each service to ensure optimal sealing performance and avoid potential wear or deformation.
What is the warranty on this product?
Apobelor provides a one‑year limited warranty covering manufacturing defects. Contact customer support with your purchase details for assistance.
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