Site Comparison

CarParts.com vs RockAuto vs eBay: Best Site for Used Auto Parts in 2026

Head-to-head on price, selection, and reliability. Know exactly which site wins for each part category — and where all three fall short.

8 min read
Price Guide

How Much Do Used Transmissions Cost? Price Guide by Vehicle (2026)

Real price ranges for F-150, Camry, Civic, Silverado, and 6 more vehicles. What drives the cost up or down, and how to avoid overpaying.

9 min read
Trust & Safety

Are Junkyard Parts Safe? What Mechanics Actually Think

The honest mechanic take: which used parts are always fine, which need careful inspection, and which are a hard no — with the reasoning behind each.

8 min read
Parts Guide

5 Used Auto Parts You Should Never Buy (And 5 That Are Always Worth It)

Airbags and tires: never. Alternators and starters: always. The definitive short list with clear reasoning for each entry.

7 min read
Sourcing Guide

Junkyard vs Online: Where to Buy Used Auto Parts in 2026

Self-service junkyards, full-service recyclers, and online aggregators each have a use case. Real price comparisons across all three channels.

11 min read
Brake Guide

Complete Guide to Used Brake Parts: Rotors, Calipers, and Pads

Calipers are always safe used. Pads are never. Rotors depend on thickness. The full safety-first guide to buying used brake components.

9 min read
Vehicle Guide

Honda Civic Used Parts Guide: Save 60% on Common Repairs

The 2016–2022 Civic is a used parts goldmine. Which parts to buy used, which to buy new, and where to find verified inventory fast.

10 min read
Vehicle Guide

Best Used Parts for Ford F-150: What to Buy and What to Avoid

The F-150 has the deepest used parts supply of any vehicle on the road. Here's what to buy used, what to avoid, and the generation compatibility rules.

10 min read
Parts Guide

Used vs Remanufactured Auto Parts: Which Saves You More?

Used is cheaper up front. Remanufactured comes with a warranty. The decision framework for alternators, starters, transmissions, and more.

9 min read
Engine Guide

The Complete Guide to Buying Used Engines Online (2026)

Step-by-step: how to vet used engines online, what mileage limits matter, how to verify condition, and what to ask before you pay.

11 min read
Transmission Guide

How to Find the Right Used Transmission for Your Car

Matching by vehicle, engine code, and build date. The variables that affect compatibility and why the wrong used transmission is worse than none.

10 min read
High Mileage Guide

Best Used Parts to Buy for High-Mileage Cars (100K+ Miles)

Which components still have plenty of life left at 100K miles — and which are too worn to risk. The high-mileage parts buying guide.

10 min read
Saving Money

How to Find Cheap Used Auto Parts Online (2026 Guide)

The best strategies for sourcing used parts at 50–75% off retail — without buying junk that fails in a week.

8 min read
Source Comparison

Junkyard vs Recycler vs Retail: Where to Buy Auto Parts

Each source has a different risk/reward profile. Here's how to pick the right one for your repair.

7 min read
Fitment Guide

How to Check if a Used Auto Part Fits Your Car

VIN decoding, OEM part numbers, interchange databases — the exact steps to confirm fitment before you buy.

9 min read
Parts Guide

Top 10 Most Replaced Car Parts (And How to Find Them Cheap)

Alternators, starters, CV axles, body panels — the 10 most common failures, what they cost new vs used, and when to buy each.

9 min read
Source Comparison

OEM vs Aftermarket vs Used: Which Auto Parts Should You Buy?

Real cost and quality comparisons. Know exactly when to pay for OEM, when aftermarket is fine, and when used wins decisively.

8 min read
Saving Money

How to Save Money on Car Repairs: The Used Parts Strategy

The #1 way to slash repair bills: source your own used parts. Real numbers show $400–$700 in annual savings for most drivers.

10 min read
Buyer's Guide

Best Websites to Buy Used Auto Parts Online in 2026

6 sources compared: junkyards, eBay Motors, CarParts.com, PartsGeek, RockAuto, and PartPulse. Pros, cons, and when to use each.

10 min read
Engine Guide

Used Engine Buying Guide: How to Get the Best Deal

Mileage limits, condition grades, price ranges by engine type, and the questions to ask before you hand over your money.

11 min read
Transmission Guide

Used vs Remanufactured Transmissions: Which Should You Buy?

Used $500–$1,500 vs remanufactured $1,500–$3,500. The cost comparison, warranty differences, and decision framework to pick correctly.

9 min read
Engine Guide

How to Find Cheap Used Engines Near You

Where to look, price ranges by engine type, the inspection checklist that matters, and the red flags experienced buyers use to avoid expensive mistakes.

10 min read
Source Comparison

OEM vs Aftermarket vs Used: Which Auto Parts Should You Buy?

A real cost comparison with a clear decision framework. Know exactly when to pay for OEM, when Tier 1 aftermarket is fine, and when used OEM wins decisively.

9 min read
Transmission Guide

How to Buy a Used Transmission (Without Getting Scammed)

Mileage checks, warranty terms to demand, price benchmarks, and the specific scams and red flags that cost buyers thousands every year.

11 min read
Sourcing Guide

The Complete Guide to Buying Parts from Salvage Yards

How salvage yards work, how pricing is set, quality grading explained, negotiation tactics, and when to skip the yard and search online instead.

12 min read
Repair Guide

When to Replace vs Repair: Auto Parts Decision Guide

Part-by-part decision framework for brakes, alternators, starters, CV axles, engines, transmissions, and more — with cost thresholds and real examples.

10 min read