# RockAuto API: Search parts for a vehicle > Finds RockAuto parts for a vehicle (year, make, model, optional engine) and part category, sorted by listed price. Prices are in USD and exclude shipping and taxes. When no engine is given, uses the first engine in the catalogue. Unofficial. Not affiliated with or endorsed by RockAuto. - Page: https://fous.com/methods/rockauto.com/search-parts - Method: `rockauto.com/search_parts`, version 1 - Website: rockauto.com - Returns: vehicle, part category, parts with brand, part number, description, notes, price, core charge, quality tier, image and catalogue link - Effect: read (it gets data and changes nothing) - Sign-in: none needed - Cost: 1 credit per completed run (1ยข with pay as you go); failed runs are free - Verified: Nov 2, 2026 ## Inputs | Field | Type | Required | In the run below | Description | |---|---|---|---|---| | `make` | string | yes | `"Honda"` | Vehicle maker, for example Honda. | | `part` | string | yes | `"caliper"` | Part in words, for example brake pads. | | `year` | integer | yes | `2015` | Vehicle model year, for example 2015. | | `model` | string | yes | `"Civic"` | Vehicle model, for example Civic. | | `engine` | string | no | `"1.8L L4"` | Engine, for example 1.8L L4. Defaults to the first listed engine. | | `max_results` | integer | no | `12` | Maximum parts to return, for example 30. Default 30. | ## Output From a run on Oct 31, 2026, shortened. Its input: ```json { "make": "Honda", "part": "caliper", "year": 2015, "model": "Civic", "engine": "1.8L L4", "max_results": 12 } ``` Its output: ```json { "parts": [ { "brand": "CENTRIC", "notes": "Front Right; HF Model; 262mm Front Disc; Front Right; Manual trans.; DX Model or LX Model or SE Model; 262mm Front Disc", "price_usd": 18.61, "image_link": "https://www.rockauto.com/info/142/141.40119_Front__ra_m.jpg", "description": "Reman.", "part_number": "14140119", "quality_tier": "Remanufactured", "core_charge_usd": null, "catalogue_page_link": "https://www.rockauto.com/en/catalog/honda,2015,civic,1.8l+l4,3310198,brake+&+wheel+hub,caliper,1704" }, { "brand": "CARDONE", "notes": "Front Left; EX Model or EX-L Model; w/ Metal Piston; Front Left; Automatic CVT trans.; LX Model or SE Model; w/ Metal Piston", "price_usd": 25.99, "image_link": "https://www.rockauto.com/info/1/192660-BAC__ra_m.jpg", "description": "Remanufactured", "part_number": "192660", "quality_tier": "Remanufactured", "core_charge_usd": null, "catalogue_page_link": "https://www.rockauto.com/en/catalog/honda,2015,civic,1.8l+l4,3310198,brake+&+wheel+hub,caliper,1704" }, { "brand": "CARDONE", "notes": "Front Right; EX Model or EX-L Model; w/ Metal Piston; Front Right; Automatic CVT trans.; LX Model or SE Model; w/ Metal Piston", "price_usd": 29.79, "image_link": "https://www.rockauto.com/info/1/19B2661-ANG__ra_m.jpg", "description": "Remanufactured; Includes Mounting Bracket", "part_number": "19B2661", "quality_tier": "Remanufactured", "core_charge_usd": 48.6, "catalogue_page_link": "https://www.rockauto.com/en/catalog/honda,2015,civic,1.8l+l4,3310198,brake+&+wheel+hub,caliper,1704" } ], "vehicle": { "make": "HONDA", "year": 2015, "model": "CIVIC", "engine": "1.8L L4" }, "part_category": "Caliper" } ``` ## Run it From code, with a Fous API key in `FOUS_API_KEY`; the answer's `data` holds the output: ```bash curl https://api.fous.com/v1/runs \ -H "Authorization: Bearer $FOUS_API_KEY" \ -H "Content-Type: application/json" \ -d '{"method":"rockauto.com/search_parts","input":{"make":"Honda","part":"caliper","year":2015,"model":"Civic","engine":"1.8L L4","max_results":12}}' ``` From an AI agent connected to the Fous MCP server: its `run` with the same method and input. To connect one, give it `set up https://fous.com/SKILL.md`. ## Ask your agent - Find the cheapest front brake pads for a 2012 Toyota Camry 2.5L L4 on RockAuto - What alternators are available for a 2008 Ford F-150 with the 5.4L V8? Show prices, core charges and brands. - I need a new radiator for my 2016 Honda Accord. List the 10 lowest-priced options with part numbers. - Compare oxygen sensor prices for a 2005 Chevrolet Silverado 1500 4.8L V8, cheapest first - Pull up RockAuto's spark plug listings for a 2019 Subaru Outback 2.5L H4, up to 50 results with quality tiers and catalogue links ## Input schema ```json { "type": "object", "required": [ "year", "make", "model", "part" ], "properties": { "make": { "type": "string", "description": "Vehicle maker, for example Honda." }, "part": { "type": "string", "description": "Part in words, for example brake pads." }, "year": { "type": "integer", "description": "Vehicle model year, for example 2015." }, "model": { "type": "string", "description": "Vehicle model, for example Civic." }, "engine": { "type": "string", "description": "Engine, for example 1.8L L4. Defaults to the first listed engine." }, "max_results": { "type": "integer", "default": 30, "maximum": 100, "minimum": 1, "description": "Maximum parts to return, for example 30." } } } ``` ## Output schema ```json { "type": "object", "required": [ "vehicle", "part_category", "parts" ], "properties": { "parts": { "type": "array", "items": { "type": "object", "required": [ "brand", "part_number", "price_usd", "catalogue_page_link" ], "properties": { "brand": { "type": "string" }, "notes": { "type": [ "string", "null" ] }, "price_usd": { "type": "number" }, "image_link": { "type": [ "string", "null" ] }, "description": { "type": [ "string", "null" ] }, "part_number": { "type": "string" }, "quality_tier": { "type": [ "string", "null" ] }, "core_charge_usd": { "type": [ "number", "null" ] }, "catalogue_page_link": { "type": "string" } } } }, "vehicle": { "type": "object", "required": [ "year", "make", "model", "engine" ], "properties": { "make": { "type": "string" }, "year": { "type": "integer" }, "model": { "type": "string" }, "engine": { "type": "string" } } }, "part_category": { "type": "string" } } } ``` ## See more - [AutoZone API: Search parts for a vehicle](https://fous.com/methods/autozone.com/search-parts.md): Finds AutoZone parts listed for a vehicle (year, make, model, optional engine), with prices, warranties and fit notes. Listings are filtered by year, make and model; engine fit often needs further confirmation. - [Autotrader API: Search cars](https://fous.com/methods/autotrader.com/search-cars.md): Searches Autotrader car listings near a US ZIP code by make and model, with condition, price, year and distance filters. Returns up to 100 listings in site order. - [Carvana API: Search used cars](https://fous.com/methods/carvana.com/search-cars.md): Searches Carvana's used-car inventory by make and model, with optional price, year, mileage and ZIP filters, and returns each car's price, estimated monthly payment, mileage and delivery or pickup estimate for the ZIP. - [Cars.com API: Search listings](https://fous.com/methods/cars.com/search-cars.md): Searches Cars.com car listings for a make and model around a US ZIP code within a radius, optionally by condition (new, used or certified pre-owned) and maximum price, in Cars.com search order. - [CARFAX API: Search used cars](https://fous.com/methods/carfax.com/search-cars.md): Searches CARFAX used-car listings for a make and model near a US ZIP code, in CARFAX order, with listing details and free vehicle-history highlights. Paid full history reports are not included. - [CarGurus API: Search cars for sale](https://fous.com/methods/cargurus.com/search-cars.md): Searches new and used cars for sale near a US ZIP code for a make and model, with prices, dealer details and CarGurus deal ratings. Used cars come first, then new cars, each in CarGurus order; market difference is positive below market and negative above. - [CarMax API: Search used cars](https://fous.com/methods/carmax.com/search-cars.md): Searches CarMax used cars by make and model with optional ZIP, distance, year, price and mileage filters, keeping CarMax's order. Pages expose only the first 48 cars; distance is CarMax's distance from the selected local store, and larger limits or narrow distance filters may return fewer matches. - [mobile.de API: Search cars](https://fous.com/methods/mobile.de/search-cars.md): Searches mobile.de car listings by make and model, with optional registration year, price, mileage, fuel, condition and sorting. Returns up to 50 listings in marketplace order; fields not shown on a listing are null.