All 126 Engine Codes - Fitment, Models & Price Tiers

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Dealership vs A2Z Engines vs salvage yard
Source	Price level	Warranty	Freight
Dealership	Highest	Short parts warranty	Extra
A2Z Engines	Below dealer	9/16/36 months by tier	Free & insured, USA-wide
Salvage yard	Lowest but variable	Often 30 days or none	Self-collection typical

How ordering works

Enter your vehicle: make, model and condition preference.
Confirm your contact details and review the summary.
See nine price options across three warranty tiers.
A fitment specialist confirms the engine code before dispatch.

Key takeaway: All 126 engine codes - compare used, reconditioned and remanufactured in one view, confirm the engine code before ordering, and expect free insured freight USA-wide in 12-16 working days with warranty 9/16/36 months by tier. The bottom line: fitment is verified before dispatch, so you are not guessing.

Written and maintained by the QB AUTOZ LLC editorial team, reviewed by our fitment desk in Mount Olive, Mississippi. We inspect and ship replacement engines and transmissions USA-wide.
Technical reviewer: A2Z fitment desk (ASE-certified inspection partners). Read our editorial standards.
How we verify units: every engine is compression-tested and run-tested before dispatch, and the engine code is confirmed against your VIN range so the unit physically fits.
Published 2026-09-24 · Last updated 2026-09-24.
Fitment guidance: decode your VIN with the NHTSA VIN decoder. Emission and engine-family reference: EPA vehicle and fuel emissions testing.

Frequently asked questions about engine codes

What does delivery cost?

Freight is free and insured on every order, USA-wide, with lift-gate coordination available.

How long does delivery take?

Most orders ship in 12-16 working days.

What warranty do I get?

Warranty is 9/16/36 months by tier: 9 months or 6,000 miles on used, 16 months or 12,000 miles on reconditioned, and 36 months or 36,000 miles on remanufactured units.

Can I finance a replacement?

Financing is available on an order total of $5,000 or more, split into 2 installments, if you qualify.

Is a tested used engine better than a junkyard core?

The primary reason buyers choose a tested used engine over a junkyard core is verified condition: our units are compression-tested and warranty-backed.

Tested OEM used vs remanufactured vs junkyard core
Option	Cost	Warranty	Testing	Reliability
Tested OEM used (A2Z)	Below dealer	9 months / 6,000 mi	Compression + run test	Good, verified
Remanufactured (A2Z)	Middle	36 months / 36,000 mi	Built to specification	Highest
Junkyard core	Lowest	Often none	Rarely tested	Variable

How do I confirm the engine fits my vehicle?

Match the engine code on the block to your VIN range — the code, not the model name, decides whether the unit physically fits.

Engine compatibility reference (sample variants)
Engine variant	Year range	Compatible models	VIN check	Typical pairing
2.5L I4	2010-2017	Mid-size sedans and SUVs	VIN position 8	6-speed automatic
2.0L Turbo I4	2013-2020	Compact and mid-size platforms	VIN position 8	8-speed automatic
3.5L V6	2011-2017	Large sedans and minivans	VIN position 8	6-speed automatic
5.0L V8	2011-2017	Full-size trucks	VIN position 8	6/10-speed automatic

How does ordering work?

Ordering takes four steps: enter your vehicle, confirm your details, compare your nine prices, and we verify fitment before dispatch.

Enter your vehicle: make, model and condition preference.
Confirm your contact details and review the summary.
Compare nine price options across three warranty tiers.
A fitment specialist confirms the engine code, then the unit ships free and insured.

What do the engine terms mean?

A used engine is a tested original unit that has not been rebuilt.

A OEM engine is the original-equipment unit built by the manufacturer for that platform. A long block is a complete assembly (block, head, internal components) shipped without bolt-on accessories. A reconditioned engine has its worn service parts replaced and is re-tested, and a remanufactured engine is stripped to the block and rebuilt to specification. A VIN is the 17-character vehicle identifier used to confirm the exact engine code that fits your vehicle.

All 126 Engine Codes — Fitment, Models & Price Tiers

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