Alcor 86252 CHT BAYONET STYLE TYPE K

The **Alcor CHT Bayonet Style Probe** (P/N **86252**) is a **Type K thermocouple** designed for **cylinder head temperature (CHT)** measurement on reciprocating-powered aircraft. The probe features a **small element diameter** that provides near-instantaneous instrument response. The **lead wires are configured in reverse stagger (long red and short yellow)** and it is intended for use with **Type K CHT instruments and leads**, typically found in digital systems. Most engine cylinders require the **Alcor Bayonet Adaptor (P/N 28202)** for a secure fit. **Type K** CHT, EGT and TIT thermocouples are identified by **red (-)** and **yellow (+)** wires. Type K thermocouples are manufactured using **alumel (red)** and **chromel (yellow)** metals. Type K is the industry standard for **EGT** and **TIT**, although some manufacturers specify Type K for use in digital and/or amplified **CHT** indicators. The Alcor CHT Bayonet Style Probe is **FAA approved** and **PMA approved** for use on **all reciprocating-powered aircraft** and is backed by an **industry-leading 5-year warranty**. --- ## Applications The Alcor 86252 CHT Bayonet Style Probe is intended for: - Reciprocating-powered aircraft - Type K CHT instruments - Type K CHT leads - Digital Type K CHT systems - Amplified Type K CHT systems --- ## Why CJ Aerospace? CJ Aerospace supplies genuine Alcor engine monitoring products backed by expert technical support and fast local delivery. - 🇦🇺 **Australian-owned & operated** - 📦 **Stocked locally in Australia for fast dispatch** - 🔧 **Technical guidance on engine instrumentation selection and compatibility** - ✈️ **Trusted by aircraft owners, maintenance organisations and aviation professionals** > ✉️ [Contact us sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au) > Need help selecting the correct Alcor probe for your aircraft? Our team is ready to assist.

- Backed by an industry-leading **5-year warranty** - Small element diameter provides near-instantaneous instrument response - Lead wires configured in **reverse stagger** (long red and short yellow) - Intended for use with Type K CHT instruments and leads, typically found in digital systems - Grounded thermocouple - Bayonet sensor mount - FAA approved - PMA approved for all reciprocating-powered aircraft