Powertrains

Compare prices on quality used engines and transmissions, shipped nationwide with warranty.

A close-up, photographic image of an environmentally focused automotive recycling setup, showing separated piles of cleaned aluminum engine components, copper wiring neatly coiled in bins, and sorted plastic housings in designated containers. The scene is set on a spotless concrete pad, with clearly marked painted zones and signage in the background indicating recycling categories. Soft, even outdoor lighting under light cloud cover creates minimal shadows and accurate color. Captured from a slightly elevated angle with moderate depth of field, the mood is responsible and forward-thinking, emphasizing Green Auto Parts’ commitment to sustainability while recovering high-quality used OEM components.
A professional workbench scene inside a clean automotive dismantling and inspection bay, featuring a used OEM transmission case on a padded mat, with organized hand tools and diagnostic equipment arranged around it. The aluminum housing has been cleaned, revealing casting marks and engraved part numbers, with a green tag indicating it has passed testing. Overhead LED strip lights provide even, shadow-free illumination. The background shows an orderly environment with labeled tool cabinets and parts carts in soft focus. Photographic realism at an eye-level angle conveys technical expertise, rigorous inspection, and reliability behind every used part sold.

How We Protect Your Purchase

Every engine and transmission is visually inspected, compression tested when applicable, and mileage verified against donor-vehicle records. You receive clear documentation and photos, plus straightforward shipping and warranty details on our Shipping & Warranty page.

Pricing

A wide, cinematic view of a modern auto parts warehouse in San Antonio, TX, featuring long, symmetrical aisles of tall racking filled with barcoded used OEM parts in uniform bins and crates. The polished concrete floor reflects the cool white glow of evenly spaced overhead LEDs, contributing to a clean, efficient ambiance. At the far end, a large industrial roll-up door lets in a hint of warm Texas daylight. Shot from a slightly low, centered perspective with strong leading lines, the photographic realism and sharp focus throughout communicate scale, organization, and the capacity to ship parts quickly nationwide.

Used Engines

Most customers shopping used engines with Green Auto Parts can expect ballpark pricing between $900–$2,500 for popular gasoline engines and $2,000–$4,500 for many diesel applications, depending on mileage, options, and availability. Compared to buying new or remanufactured, these used OEM engines typically deliver 40–70% savings while still giving you a solid, warrantied replacement that’s ready to install.

Typical savings 40–70% vs new engines, fully inspected and tested.

A close-up, photographic view of a pristine used OEM engine assembly strapped securely on a wooden pallet, its aluminum block and black plastic covers freshly cleaned, with colored tags indicating inspection and part numbers. The engine sits in the center of a bright, orderly warehouse aisle, surrounded by tall racks of crated parts fading into a soft blur. Cool white LED overhead lighting casts crisp, even illumination, revealing fine details without harsh shadows. Shot from a slightly low, three-quarter angle, the composition feels robust and dependable, conveying confidence in quality, testing, and readiness for nationwide shipping.

Used Transmissions

For automatic and manual transmissions, typical used OEM units from our nationwide network generally range from about $650–$1,800 for compact and mid-size vehicles, and $1,500–$3,200 for trucks and heavy-duty applications. In most cases, choosing used over new or dealer-remanufactured means you’re saving 35–60% on the part itself, helping keep your total repair cost manageable without sacrificing quality or reliability.

Save 40–65% vs new, low-mile units with verified history.

Reviews

A meticulously organized wall of labeled OEM auto parts, including neatly arranged headlight and taillight assemblies, side mirrors, and grilles, each resting on clean metal shelving. The plastic lenses and chrome details catch subtle reflections from bright but diffused ceiling-mounted LED lights, showing they’ve been cleaned and inspected. The perspective is a slightly angled, eye-level shot that reveals depth down the aisle, with distant shelves fading into soft focus. The photographic realism, crisp lines, and balanced composition create a professional, trustworthy atmosphere that emphasizes selection, compatibility, and the ability to find the exact part needed.

Aya Nakamura

“Bought a low-mile V6 from Green Auto Parts; shop said compression numbers were excellent and it runs like new. Saved over dealer pricing.”

A close-up, photographic image of an environmentally focused automotive recycling setup, showing separated piles of cleaned aluminum engine components, copper wiring neatly coiled in bins, and sorted plastic housings in designated containers. The scene is set on a spotless concrete pad, with clearly marked painted zones and signage in the background indicating recycling categories. Soft, even outdoor lighting under light cloud cover creates minimal shadows and accurate color. Captured from a slightly elevated angle with moderate depth of field, the mood is responsible and forward-thinking, emphasizing Green Auto Parts’ commitment to sustainability while recovering high-quality used OEM components.

Mateo García

“Transmission arrived clean, paperwork showed mileage and tests. Mechanic installed it quickly and it shifts smoothly, still performing great several months later.”