Torque Index

com.torqueindexPublished by torqueindex.comOfficial publisherv1.1.0Updated Nov 7, 2026

US truck engine reference: VIN lookup, part numbers, failures, recalls, repair costs, service specs.

VerifiedStreamable HTTPWeb executableLocation & LifestyleData & Analytics

Overview

AI-generated overview

Torque Index is a remote reference server for US truck and van engine platforms, giving assistants VIN decoding, part fitment, failure modes, recalls, repair…

What you can do
  • Decode a VIN and identify the engine platform, configuration pages, recalls and bulletins that apply
  • Look up Ford, Mopar, GM and aftermarket part numbers, the engine they fit and supersessions
  • List engine platforms and read their failure modes, symptoms, recalls and service specs
  • Match reported truck symptoms to documented failure modes per engine
  • Get parts-only repair cost bands in USD and search concept pages
  • Fetch the markdown version of any Torque Index page returned by the other tools
When to use it
Useful when answering questions about US diesel and HD gasoline truck engines: identifying a truck from its VIN, checking whether a part fits, researching known failures and symptoms, or looking up recalls, oil and filter specs and parts budgets.
Requirements
A remote streamable HTTP endpoint at torqueindex.com; no authentication, environment variables or headers are declared. Network access is required.
Before you install
Read-only reference data, but answers carry provenance tiers (verified, aggregated, contested, data-gap) that should be stated, and data gaps should not be filled with outside numbers. Recall status for a specific VIN is not known, repair costs are parts only and not labor, and fitment is year x model x engine without cab or wheelbase.

Installation

In SourceWeft

  1. Open Torque Index in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.torqueindex%2Ftruck-reference/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "torque-index": {
      "type": "http",
      "url": "https://torqueindex.com/mcp"
    }
  }
}

Tools

10

lookup_vin

Look up a VIN

Decode a 17-character VIN (via NHTSA vPIC) and return the matching Torque Index engine platform, vehicle configuration pages and the recalls and bulletins that apply. Fitment is year x model x engine; cab and wheelbase are not modeled.

Parametersvinrequired

find_part_number

Find a part number

Find which part a Ford, Mopar, GM or aftermarket part number is, which engine it fits and what it replaced or was replaced by. Dashes and spaces are ignored; at least 4 characters. Returns up to 25 parts.

Parametersnumberrequired

get_page

Read a Torque Index page

Return the markdown version of a Torque Index page by its path, e.g. /platforms/cummins-6_7/, /failure-modes/<id>/, /parts/<id>/, /recalls/<platform>/, /repair-costs/, /blog/<slug>/. Use the URLs returned by the other tools.

Parameterspathrequired

list_platforms

List engine platforms

List every engine platform Torque Index covers, with its page, recalls page and part count.

Takes no parameters.

get_failure_modes

List an engine's documented failures

Every documented failure mode of one engine platform: name, provenance tier, how common it is and the first symptom owners report. Open a failure's page (get_page) for root cause, diagnosis, fixes and parts. Use list_platforms for the platform ids.

Parametersplatformrequired

get_recalls

List an engine's recalls

NHTSA safety recalls on record for one engine platform: campaign number, date, component, model years and the summary. Whether a recall is still OPEN on a specific VIN is not known here. The recalls page (get_page) also lists defect investigations and manufacturer bulletins.

Parametersplatformrequired

get_repair_cost

List an engine's repair costs

The parts budget of every documented failure we can price on one engine platform: band, low and high USD, whether the prices are exact (Dave's Auto Center retail). Parts only, no labor.

Parametersplatformrequired

get_service_specs

Get an engine's service specs

Owner's-manual service cards for one engine platform, one card per manual year: oil capacity, grade and the maker's oil specification, oil/fuel/air filter numbers, coolant.

Parametersplatformrequired

get_symptoms

Match a symptom to documented causes

Given what a truck does (hard start, power loss, white smoke, coolant loss, noise, DEF warnings ...), list the documented failure modes that show that sign, per engine. Lists documented causes; it does not diagnose a truck.

Parameterssymptomrequiredplatform

Version history

2
  1. v1.1.0LatestNov 7, 2026
  2. v1.0.0Nov 1, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.