Fresh red fluid does not prove a used transmission is healthy; it may have been changed before sale. Give more weight to the donor VIN, exact transmission code, pan magnet, burnt odor, and metal debris. If these checks cannot be documented, treat the unit as unverified regardless of its claimed mileage.

Choose a diesel by generation, condition, and service history, not the badge alone. Always verify the engine code, donor application, fuel system, and emissions configuration before buying.

The VQ35DE engine code alone does not confirm fitment. Always verify the donor platform, model year, engine layout, accessories, and vehicle VIN before ordering because transverse and longitudinal VQ35DE variants are not direct replacements for one another.

Buying a used transmission? Learn how to verify VIN fitment, inspect quality, compare replacement options, understand costs, and avoid an expensive mismatch.

Not every “tested” used auto part receives the same level of inspection. Learn how to verify testing methods, donor mileage, OEM numbers, VIN fitment, warranties, and seller red flags before buying an engine or transmission.

He has sourced, tested, and shipped hundreds of GM LS and LT truck V8s and checks mileage, compression, and VIN codes on every Silverado unit before it enters inventory.

Introduction Look, I've seen this happen more times than I can count. Guy finds a 2.3L EcoBoost online, low miles and a good price and thinks he's got himself a deal. Orders it, pays the freight, rolls it into the shop. I pull back the pallet wrap, take one look, and I already know. Wrong generation. Harness connectors don't match. PCMs from a 2024 S650. Used Transmission's setup for an automatic and his car's manual. Now he's out the engine cost and the shipping, and he's pa

Decoding your Vehicle Identification Number (VIN) is the key to finding the perfect engine replacement. This unique 17-character code reveal

Your car is your daily companion, and like any machine, it needs regular attention to run smoothly. Ignoring early warning signs could...

Junkyard engines have long attracted car enthusiasts and mechanics looking for budget-friendly options for engine replacements. These...

When it comes to replacing your vehicle's engine, there are three main options: OEM used engines , remanufactured engines, and crate...

This guide aims to help you weigh the costs and benefits of both options, providing insights into when repair makes sense and when replacement might be a smarter investment. We’ll also touch on the viability of used engines and whether they’re worth considering. Signs Your Engine Needs Repair It’s crucial to understand the early signs that your engine may require attention. Engine problems can manifest in various ways: • Loss of power: A sluggish response when accelerating co

Ever wonder what’s really going on under the hood of your car? Your engine is a marvel of engineering, with numerous parts working together to keep your vehicle running smoothly. But for many, the inner workings of a car engine remain a mystery. In this guide, we'll break down the essential car engine parts and explain their functions in detail. By the end, you'll have a solid understanding of what makes your engine tick – and why each component is crucial. 1. Engine Block Th