Drivetrain parts rebuilt to outlast the original.
Engines, transmissions, transfer cases and differentials, remanufactured to spec with honest condition disclosure and real fitment data on every listing.
Everything Under the Vehicle, and the Shop Around It
From short blocks to two-post lifts, browse our full catalog by what you need.
382Remanufactured Engines
275Transmissions
271Manual Transmissions
604Transfer Cases
151Differentials
138Car Lifts
664Shop Equipment
60Garage Storage
24Tire Changers
Not sure what fits?
Featured Parts & Equipment
A sample of what just landed. New units added continuously.
Not Rebuilt in a Garage. Remanufactured to Standard.
Steel Bay is a remanufacturing-first parts supplier. Cores come in worn, and leave as units built to a documented standard, cleaned, machined, reassembled with new wear parts and tested before they ever reach a crate.
That is the difference between a used part with an unknown history and a remanufactured unit built to last. It is the standard we have held for ten years.
More About UsFrom Worn Core to Ready-to-Install
Every drivetrain unit we sell goes through the same controlled remanufacturing process.
Teardown & Clean
Fully disassembled, then hot-tanked or thermally cleaned back to bare metal.
Inspect & Machine
Every component measured and inspected; worn parts machined or replaced.
Rebuild to Spec
Reassembled with new wear components to meet or exceed OEM tolerances.
Test & Ship
Quality-checked, documented, and shipped free.
Ten Years of Getting People Back on the Road
We have spent a decade sourcing, remanufacturing and shipping drivetrain parts. Here is what that experience buys you.
Remanufactured to Spec
Drivetrain units are torn down to bare metal, measured, machined and rebuilt with new wear components to meet or exceed OEM tolerances.
Tested & Documented
Every remanufactured unit is quality-checked and documented before it ships, so you know exactly what you are bolting in.
Honest Condition Disclosure
Remanufactured or used is stated plainly on every listing. No blanket “like new” claims, no surprises when the crate arrives.
Free Shipping
Shipping is included on your order, crated and freighted to your door or shop with tracking.
Warranty Available
Remanufactured drivetrain units carry a warranty. Coverage varies by unit and manufacturer, with exact terms shown on each product page.
Real Fitment Help
Not sure which engine code, transmission or transfer case fits? Our US-based team helps you match the right part before you buy.
Know What You Are Buying
Plain answers on how the parts work, what fails first, and how to choose the right unit before you order.
Outfitting a Shop? We Stock the Big Iron Too.
Two-post & four-post lifts, wheel alignment systems, ADAS calibration, tire changers, A/C recovery machines and air compressors, with the same honest pricing and free shipping.
Shop Equipment