Start with the question that matches your vehicle or part. Each guide explains what evidence matters and what a seller's fitment claim can—and cannot—tell you.
Will these wheels fit my car?
Check bolt pattern, width, offset, center bore, hardware, brake clearance, tires, and suspension clearance.
BRAKESHow do I know what brake pads fit?
Match axle position, caliper, brake package, pad shape, sensors, dimensions, and production changes.
COOLING SYSTEMHow to find the right water pump
Compare engine, rotation, mounting pattern, shaft, pulley alignment, connections, and production range.
WIPERSWhat windshield wipers fit my car?
Confirm blade length, position, arm attachment, adapter, and clearance.
CLASSIC & VINTAGEHow to find parts for a classic car
Work from vehicle identity, old numbers, dimensions, production changes, and restoration goals.
BEFORE YOU ORDERHow to verify that a car part fits
Separate a likely catalog match from confirmed fit using position, engine, connectors, measurements, and part-number evidence.
SWAPS & MODIFICATIONSHow to find parts for a modified car
Search from the component actually installed—not only the chassis badge.
1965 FORD F-100How to research radiator fitment
Compare engine, core dimensions, mounts, hose locations, cooler fittings, and fan clearance.
2008 SCION tCHow to check side-mirror fitment
Match side, connector, features, mounting base, glass, and finish.
COMMON PARTSCar-part fitment checklist
A hub for the measurements and configuration details that determine compatibility.
CARBURETORSRebuild the installed unit or replace it?
Identify the carburetor, kit, interfaces, linkage, choke, and calibration.
What about other common parts?
WrenchFit also checks the evidence that commonly changes fitment for batteries, alternators, starters, oil and air filters, drive belts, spark plugs, fuel pumps, headlights and taillights, shocks and struts, and engine or vehicle sensors.
Exact identifiers still matter. A listing that names the right vehicle is not enough when the connector, position, mounting, dimensions, output, pressure, thread, reach, or installed engine differs.
Use the common-parts checklistKeep the research attached to the vehicle.
WrenchFit saves vehicle configuration, installed parts, part numbers, modifications, measurements, and fitment notes in one garage record.
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