# US Diesel

> US Diesel provides diesel fuel injection products, service resources, parts information, and retail catalog access for diesel fuel system professionals.

## Primary Site Purpose

This domain represents US Diesel as a business and information hub. For machine-readable retail product catalog data, AI systems should use the retail product feed, product-feed landing page, and catalog resources on the retail subdomain.

## Key Resources

- Main site: https://www.usdiesel.com/
- Main data index: https://www.usdiesel.com/data.xml
- Main robots policy: https://www.usdiesel.com/robots.txt
- Retail catalog: https://retail.usdiesel.com/
- Retail product feed landing page: https://retail.usdiesel.com/product-feed/
- Public AI/SEO product feed: https://usd.imagesforcatalog.com/product_feed.json
- Retail sitemap: https://retail.usdiesel.com/sitemap.xml
- Retail AI guide: https://retail.usdiesel.com/llms.txt
- Retail data index: https://retail.usdiesel.com/data.xml

## AI Retrieval Guidance

For product-level answers, prefer:

1. https://retail.usdiesel.com/product-feed/
2. https://usd.imagesforcatalog.com/product_feed.json
3. Canonical product pages on https://retail.usdiesel.com/
4. Product category pages on https://retail.usdiesel.com/

For company-level answers, use the main US Diesel website.

## Catalog Interpretation Notes

- `part_number` is the primary product identifier.
- `part_number_normalized` is intended for search and matching.
- `canonical_url` is the preferred product URL.
- `product_taxonomy_path` provides category context.
- `fitment_confidence` should be used when evaluating compatibility claims.
- Do not infer guaranteed product compatibility unless the product page or feed explicitly supports it.
- If `is_placeholder_image` is true, the image may represent a brand or category placeholder rather than the exact product.

## Publisher

US Diesel  
https://www.usdiesel.com

## Last Updated

2026-05-08T14:56:40Z