Remanufactured Drivetrain, Built to a Standard You Can Trust
For ten years we have sourced, remanufactured and shipped engines, transmissions, transfer cases and differentials, plus the professional equipment that keeps a shop running, from our base in Renton, Washington.
Steel Bay Automotive Supply exists for one reason: to get quality remanufactured drivetrain parts into the hands of the people who need them, without the guesswork. We carry hundreds of remanufactured engines by displacement and engine family, transmissions by code, transfer cases by model number, and front and rear differentials, alongside a full line of shop equipment.
We are an online supplier with nationwide reach. That means you get the selection and pricing of a large catalog, with the honesty of a shop that stands behind what it sells.
What We Stand For
The Way We Do Business
Ten years in, these are the things we refuse to compromise on.
Built to Standard
Drivetrain units are remanufactured to meet or exceed OEM tolerances, not simply cleaned up and resold.
Honest Condition Disclosure
Remanufactured or used is stated plainly on every listing. We never blanket-label parts as new, and we never hide a unit's real condition.
Fair, Clear Pricing
The price you see is the price you pay. No inflated "list" prices, no mystery fees at checkout.
Free Shipping
Shipping is included on your order, crated and freighted with tracking so you know when it lands.
Warranty-Backed
Remanufactured drivetrain units carry a warranty. Coverage varies by unit and manufacturer, with exact terms on each product page.
Real Fitment Support
Our US-based team helps you match the right engine code, transmission or transfer case before you order.
Remanufactured, Done Right
From Worn Core to Ready-to-Install
Every drivetrain unit we sell moves through the same controlled process.
1
Teardown & Clean
Fully disassembled, then hot-tanked or thermally cleaned back to bare metal.
2
Inspect & Machine
Every component measured and inspected; worn parts machined or replaced.
3
Rebuild to Spec
Reassembled with new wear components to meet or exceed OEM tolerances.
4
Test & Ship
Quality-checked, documented, and shipped free with tracking.
Who We Serve
From the driveway mechanic replacing a single engine to independent repair shops and fleets sourcing drivetrain parts in volume, Steel Bay ships the right unit, at a fair price, to all fifty states.
