# diesel.parts Product and Services Guide

diesel.parts is a truck troubleshooting and parts-discovery website, not a parts seller or an AI consulting agency. It helps users explore likely causes, checks, and parts for Class 6–8 truck problems, compare exact-part-number listings, and read trucking industry updates.

## Available features

| Feature | What it does | Open |
| --- | --- | --- |
| AI-assisted troubleshooting | Suggests likely causes, checks, and parts to inspect based on a truck problem and supplied truck details. | [Repair order](https://diesel.parts/#repair-order) |
| Exact-part-number comparison | Searches public supplier and dealer listings, with an optional brand, sorting, filters, price-source labels, and seller links. | [Compare prices](https://diesel.parts/#part-number) |
| Truck catalog browsing | Links to external supplier catalogs organized by truck make. | [Browse by truck](https://diesel.parts/#trucks) |
| System catalog browsing | Links to external supplier catalogs organized by truck system. | [Browse by system](https://diesel.parts/#systems) |
| Trucking Pulse | Provides source-linked news summaries, weekly EIA diesel fuel price data, and a 28-day archive. | [Trucking Pulse](https://diesel.parts/#news) |

## Comparison sources

The comparison searches FinditParts, FleetPride, TruckPro, Rush Truck Centers, Cummins direct, Class8TruckParts, and PeterbiltParts.com. These are external sources, not guaranteed inventory coverage, endorsements, or claims of a commercial partnership.

## Important limits

- Troubleshooting is guidance, not a confirmed diagnosis or guaranteed repair.
- The site does not sell parts, handle payments, or fulfill orders.
- Indexed listing prices are not live quotes. Some sources return no listing or no usable price.
- No listing returned does not mean out of stock. Seller websites remain directly accessible from the comparison.
- Confirm the exact manufacturer, part number, fitment, condition, pack quantity, and stock with the seller.
- Shipping, taxes, and core charges are excluded.
- Trucking Pulse refreshes on a daily schedule, but EIA fuel prices are weekly data and news summaries should be checked against the original sources.

## Get started

Visit [diesel.parts](https://diesel.parts/) to describe a problem, browse catalogs, or compare an exact part number. Read the [FAQ](https://diesel.parts/faq.md) for further details.