THE USED EXPERTS.
Direct warehouse access to compression-tested, low-mileage OEM replacement engines and transmissions. Crated and shipped directly to your driveway or mechanic shop with free freight and 1 to 5 Years Warranty.
Instant Part Finder
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Nationwide Stock Covering Over 3,500+ Vehicle Models (Domestic, Asian & European)
Top In-Stock Engine Categories
Over 15,000+ compression-tested motor assemblies ready for instant crate dispatch from Dallas.
American Truck V8s
Chevy 5.3L / 6.2L Vortec & EcoTec3, Ford 5.0L Coyote, 3.5L EcoBoost, Dodge RAM 5.7L HEMI motors.
Japanese 4-Cyl & V6
Toyota 2.5L / 3.5L (2GR-FE), Honda 2.4L K-Series, 1.5L Turbos, Nissan 3.5L VQ35DE & Subaru Boxers.
Commercial Turbo Diesels
Ford 6.7L Powerstroke, GM 6.6L Duramax (L5P, LML, LBZ), and RAM 6.7L Cummins Turbo Diesel long blocks.
European Turbocharged
BMW B58 / N55, Mercedes-Benz 2.0L Turbo & Bi-Turbo V8s, Audi / VW 2.0T TSI & 3.0T Supercharged.
How We Certify Every Engine & Transmission
We eliminate the risk of buying used auto parts. Every long block and transmission undergoes a strict 4-step engineering verification prior to crating.
Compression & Leak Test
Every cylinder is pressure-tested to meet original OEM psi tolerances, verifying intact head gaskets and piston ring seals.
Internal Fluid Inspection
Oil pans and transmission casings are borescope-inspected to ensure zero metal shavings, sludge, or water contamination.
Spin & Gear Engagement
Transmissions undergo spin testing through all gear stages and valve body solenoid checks for flawless hydraulic shifting.
Custom Crated Freight
Secured in weather-resistant heavy-duty industrial wooden crates with custom strapping to eliminate transit vibration or freight damage.
Why Buy Tested OEM Over Aftermarket?
Save up to 70% compared to dealership prices without sacrificing factory reliability.
| Features | CPS Auto Parts (Certified OEM) | Dealership New Part | Generic Salvage Yard |
|---|---|---|---|
| Average Cost Savings | 60% – 75% Off Dealer | Full MSRP ($5,000 - $9,000+) | Varies (No price lock) |
| Warranty Coverage | 1 to 5 Years Parts & Labor | 1-Year (Parts Only) | 30-Day "As-Is" (No Labor) |
| Pre-Shipment Testing | Compression & Fluid Inspected | Factory Bench Tested | Untested / Pulled Cold |
| Nationwide Shipping | 100% Free Freight with Liftgate | $350 - $600 Extra Freight | Pick-Up Only / High Freight |
| Core Return Required? | Zero Core Fee Options Available | Mandatory Core Charge ($500+) | Depends on yard |
What Happens After You Place An Order?
Direct live updates from Dallas warehouse testing to your mechanic's shop floor.
VIN Verification
Our specialists match your vehicle’s 17-digit VIN to confirm exact transmission bellhousing or engine code fitment.
Compression Testing
The unit is pulled from inventory, hot-run/compression tested, and certified for internal pressure standards.
Crating & BOL Dispatch
Strapped inside a heavy wooden crate. You receive your freight carrier tracking number and Bill of Lading (BOL).
Liftgate Arrival
Freight truck arrives with a hydraulic liftgate to lower your crate directly onto the ground or shop floor safely.
1 to 5 Years Nationwide Parts & Approved Labor Coverage
Every complete long block and transmission sold by CPS Auto Parts comes backed with our flexible 1 to 5 Years Comprehensive Warranty. We cover replacement parts and approved repair facility labor so you can purchase with 100% confidence.
Trusted By Over 12,000+ Auto Repair Facilities
See what mechanics, fleet operators, and vehicle owners across the USA say.
"Ordered a 5.3L Vortec engine for a customer's Silverado. Compression was 165 psi across all 8 cylinders, clean crate packaging, and arrived at our Dallas shop in 3 days. Fired up on first crank."
"Saved over $3,200 compared to what Ford dealership quoted for an F-150 10-speed transmission. Free liftgate delivery made dropping it at my mechanic super easy. Shifts like a brand new truck."
"Excellent customer service. The representative verified my exact VIN code before charging anything. 1-5 Years warranty gave me and my customer complete peace of mind."
Frequently Asked Questions
Everything you need to know about testing, freight, and fitment.
How do you verify the part will fit my exact car or truck?
We use Hollander interchange software and your vehicle's 17-digit VIN number to guarantee 100% bolt-on compatibility with your engine mount points, bellhousing, wiring harness, and transmission sensors.
How does free nationwide freight delivery with liftgate work?
Every drivetrain is crated and shipped via dedicated LTL commercial freight carriers (R+L Carriers, Estes, TForce). The freight truck includes a hydraulic liftgate to safely lower the crate to ground level at no additional charge.
What is included with a complete engine assembly?
Complete engines include the long block assembly (engine block, cylinder heads, valve covers, oil pan, camshafts, crankshaft, pistons, and timing components). External accessories like alternators, starters, and AC compressors are left attached as convenience items.
How do I file a claim under the Warranty?
Simply call our warranty hotline at +1 (877) 583-9427 or email info@cpsautoparts.com with your mechanic shop diagnostic report and invoice number. We coordinate a replacement assembly or process labor reimbursement promptly.
Need An Immediate Drivetrain Fitment Check?
Speak directly with an automotive inventory specialist in Dallas, TX. We verify live warehouse shelf stock in under 60 seconds.