At Guaranteed Engine & Transmission, our goal is simple: to help customers find quality engines, transmissions, and performance powertrain solutions for their vehicles and automotive projects.
Whether you are replacing a failed engine, restoring a classic vehicle, upgrading your truck, or building a high-performance machine, we provide a selection of powertrain products designed to meet a wide range of automotive needs.
OUR MISSION
We are committed to making the process of finding and purchasing an engine or transmission straightforward and convenient.
We focus on offering competitive pricing, clear product information, dependable customer service, and shipping solutions for customers across the United States.
WHAT WE OFFER
Our selection includes:
Replacement Engines
Complete Engines
Crate Engines
LS & LT Engines
V8 Engines
Performance Engines
Engine Packages
Automatic Transmissions
Manual Transmissions
Performance Powertrain Components
WHY CHOOSE US?
QUALITY SELECTION
We offer a growing range of engines and transmissions for replacement, restoration, performance, and custom automotive projects.
COMPETITIVE PRICING
We work to provide competitive prices while giving customers access to quality automotive powertrain products.
CUSTOMER SUPPORT
Have questions about an engine or transmission? Our team is available to help you understand product specifications and make an informed purchasing decision.
SHIPPING AVAILABLE
We provide available shipping options for eligible products throughout the United States.
WARRANTY OPTIONS
Warranty coverage is available on eligible products. Specific warranty terms and coverage are provided on individual product listings.
BUILT AROUND YOUR PROJECT
Every automotive project is different. That’s why we serve everyone from everyday drivers and vehicle owners to mechanics, restoration specialists, automotive enthusiasts, and professional shops.
Whether you need dependable replacement power or a high-performance engine for your next build, Guaranteed Engine & Transmission is ready to help.
START YOUR BUILD TODAY
Find the engine or transmission that fits your project and take the next step toward getting your vehicle back on the road.
GUARANTEED ENGINE & TRANSMISSION
Power. Performance. Confidence.
