DESCRIPTION |
FEATURES |
SPECIFICATIONS |
DOCUMENTS |
VIDEO |
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DESCRIPTION
The **Champion RHB37E** is a **massive‑electrode, two‑prong spark plug** engineered for aviation use.
It features a **shielded 3/4‑20 barrel thread** and robust electrode construction, designed to provide reliable ignition under demanding flight conditions.
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## Applications
- Suited for **general aviation piston engines** accepting shielded 3/4‑20 massive plugs
- Often used in **radial, classic, or high‑power piston engines** where 3/4‑20 shielded plugs are specified
- Common in aircraft using the RHB‑series spark plug designation
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## Why CJ Aerospace?
CJ Aerospace supplies trusted ignition and engine components for aviation operations.
We provide fast delivery, technical support, and quality parts trusted by aviation professionals.
- 🇦🇺 **Australian‑owned & operated**
- 📦 **Stocked locally in Australia for rapid dispatch**
- 🔧 **OEM‑quality ignition components**
- 🛠️ **Preferred by leading MROs and operators**
> ✉️ [Contact us sales@cjaerospace.com.au](mailto:sales@cjaerospace.com.au)
> Need help with fitment or compatibility? Our expert team is here to assist.
FEATURES
- **Two‑prong massive electrode design** for reliable spark performance
- **Nickel alloy electrodes** offering erosion and heat resistance
- **Shielded 3/4‑20 barrel thread (H‑style)** for EMI suppression and wiring protection
- **Fired glass insulator seal** providing gas-tight integrity and vibration durability
- **Dual corrosion protection**: nickel plating plus high-temperature epoxy coating
- **Plated threads** to reduce seizing during installation/removal
SPECIFICATIONS
Package Dimensions
| Length | 8.8 cm |
| Height | 2.5 cm |
| Width | 2.4 cm |
| Weight | 113 g |
Details
| **Specification** | **Detail** |
|-----------------------------|----------------------------------------------------------------------------------|
| **Part Number** | RHB37E |
| **Type** | Massive Electrode (two‑prong) |
| **Compatible Engines** | R-1820, IO-540, PZL-ASZ-621R, PZL-3S, R-1300, TIO-360, R-2600, IO-720, Lycoming TO-360, Wright radial engines |
| **Compatible Aircraft** | Aero Commander S2R, AG Aircraft (Eagle 300, Dromader, Thrush), Bell 47G, Enstrom F28B, Grumman Avenger, Piper Aztec/Comanche/Navajo/Saratoga/Seminole, Sikorsky S-55A/S-56, Taylorcraft Workhorse |
| **Thread Size** | Shielded 3/4‑20 barrel thread |
| **Mounting Thread / Size** | 18 mm |
| **Reach** | 13/16 inch (≈ 2.06 cm) |
| **Sealing Method** | Fired glass insulator seal |
| **Electrode Material** | Nickel alloy electrodes |
| **Finish / Coating** | Nickel plating with epoxy overcoat |
| **Typical Gap** | 0.016″ – 0.021″ (0.41 – 0.53 mm) |
| **Packaging** | Sold individually, factory sealed |
| **Certifications** | FAA / aviation‑grade specification |
| **Manufacturer** | Champion Aerospace |
BROCHURES & DOCUMENTATIONS
List of Brochures
Champion Aerospace Spark Plug Chart
List of Documentation
VIDEO
ASK A QUESTION
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