and ## headings only

• Implement pure HTML <table> syntax for all tables
• Exclude horizontal rules, concluding statements, and sales language
• Follow the exact output structure: Page Title → Part Overview → Key Parameters → Substitute Part Grouping Explanation → Parameter Comparison → Engineering Selection Recommendations → FAQ
• Ensure SEO-friendly content with full part numbers and category keywords
• Deliver output ready for direct web Markdown editor rendering

Please provide the input parameters for the main part and substitute parts, and I'll generate the reference page accordingly.