If your Chevy Silverado 1500 has a spun bearing, a collapsed lifter or a block that's been run low on oil, a used engine is usually the fastest and cheapest way to get the truck working again. The catch is that "the 5.3" isn't one engine. Since 2007, the Silverado 1500 has used several different 5.3L V8s, plus a V6, two 6.2L V8s, a 2.7L turbo four and a 3.0L diesel, and many of them look alike sitting on a pallet.
This guide shows you how to find your exact engine code, which codes are interchangeable, the problems that send most Silverados shopping for an engine, and what used Silverado 1500 engines cost on our site right now.
Step 1: Find your engine code on the VIN and the RPO sticker
You need two pieces of information before you shop:
- The 8th digit of your VIN. On GM trucks, this character is the engine code. You'll find the VIN at the base of the windshield on the driver's side, on the door jamb sticker, and on your registration and insurance card.
- The three-character RPO engine code. GM's Regular Production Option codes (L83, L84, L86 and so on) are printed on the Service Parts Identification label, usually inside the glove box door. The engine code is one of many three-character codes on that label.
When the 8th VIN digit and the RPO code agree with a listing, you're matching the right engine family. For a deeper walk-through of reading VINs, see our guide on how to match a used engine to your car by VIN code.
Step 2: Silverado 1500 engine codes by year
The table below covers the engines you'll see most often in Silverado 1500 listings from 2011 on. Our year pages, such as the 2015 Silverado 1500 engine page, list the VIN digit and RPO code on each engine so you can compare directly.
| Years | Engine | RPO code | 8th VIN digit |
|---|---|---|---|
| 2011–2013 | 4.3L V6 | LU3 | X |
| 2011–2013 | 4.8L V8 | L20 | A |
| 2011–2013 | 5.3L V8 | LC9 | 7 |
| 2011–2013 | 5.3L V8 | LMG | 0 |
| 2011–2013 | 6.0L V8 hybrid | LZ1 | J |
| 2011–2013 | 6.2L V8 | L9H | 2 |
| 2014–2018 | 4.3L V6 | LV3 | H |
| 2014–2019 (2019 LD only) | 5.3L V8 | L83 | C |
| 2017–2018 | 5.3L V8 with eAssist | L8B | R |
| 2014–2018 | 6.2L V8 | L86 | J |
| 2019–2024 | 2.7L turbo four | L3B | K |
| 2019–2021 | 4.3L V6 | LV3 | H |
| 2019–2022 | 5.3L V8 (AFM) | L82 | F |
| 2019–2024 | 5.3L V8 (DFM) | L84 | D |
| 2019–2024 | 6.2L V8 (DFM) | L87 | L |
| 2020–2022 | 3.0L turbo diesel | LM2 | T |
| 2023–2024 | 3.0L turbo diesel | LZ0 | 8 |
A few notes on the table:
- 2019 is a split year. GM sold the new-body 2019 Silverado 1500 alongside the older-body "Silverado 1500 LD," which kept the L83 5.3 (VIN C) from the previous generation. Check the VIN, not just the model year.
- The 6.0L LZ1 belongs to the Silverado Hybrid only. It isn't a drop-in for a regular 5.3 truck.
- Diesel and gas engines are never interchangeable without a full conversion, so a 3.0L Duramax truck needs another LM2 or LZ0.
Step 3: AFM vs DFM, and why "it's a 5.3" isn't enough
Most late-model Silverado V8s shut off cylinders at cruise to save fuel, and the system they use affects which engine you can install.
- AFM (Active Fuel Management) runs the engine on four cylinders under light load. You'll find it on the Gen IV 5.3s such as the LC9 and LMG, on the L83 and L86, and on the 2019–2022 L82.
- DFM (Dynamic Fuel Management) can shut off cylinders in many different patterns rather than a fixed set of four. It's used on the L84 5.3 and the L87 6.2.
The L82 and L84 are both 2019-and-later 5.3L V8s with the same displacement, but they're not plug-and-play swaps. DFM uses different valvetrain hardware and different engine control software. Swapping one for the other means extra parts and reprogramming, and the truck may not run right without them. Match the RPO code exactly and you avoid the problem.
The L8B (2017–2018, VIN R) is another trap. It's a 5.3 paired with GM's eAssist mild-hybrid system, and it isn't the same as a regular L83 even though the model years overlap.
If you're also replacing the transmission, check our Silverado 1500 transmission listings, since the gearbox changed several times over these years and has to match the engine and the truck's computer.
Common problems that lead to engine replacement
These are the issues we hear about most from Silverado owners looking for a replacement engine. A single symptom doesn't guarantee a dead engine, so get a proper diagnosis first.
Lifter failure on AFM and DFM engines
The cylinder deactivation system uses special collapsing lifters. When one sticks or collapses, owners often report a ticking or tapping noise, misfires and a check engine light. Caught early, it's often a top-end repair (lifters, and sometimes the camshaft). Left alone, debris can damage the cam and other parts, and some owners decide a used engine is the cheaper and quicker fix.
When you buy a used AFM or DFM engine, ask whether it was tested running before removal and whether the seller can share compression or oil pressure readings.
Oil consumption on Gen IV 5.3 engines
Some 2007–2013 era 5.3L V8s with AFM have a reputation for burning oil. GM issued service bulletins on engine oil consumption for some of these engines. If you're looking at an older Silverado, ask about the donor truck's oil consumption, and check the plugs and oil level often after installation.
The L87 6.2L recall
In 2025, GM recalled certain 2021–2024 vehicles with the 6.2L L87 V8, including 107,244 Silverado 1500 trucks out of 597,571 total vehicles, under NHTSA recall 25V-274. GM's report says manufacturing debris (sediment) in the crankshaft or connecting rod oil passages and out-of-spec crankshaft dimensions or surface finish can damage the rod bearings. Warning signs listed in the report include knocking noises, a check engine light, hesitation and a no-start condition.
If your truck has the L87, check your VIN on NHTSA's recall site first. A recall repair from a GM dealer costs you nothing, so do that before paying for a used engine. If you're buying a used L87, ask for the donor VIN so you can check its recall status too.
What a used Silverado 1500 engine costs
Prices depend on model year, engine code, mileage and grade. Here are the lowest prices listed on our Silverado 1500 engine page for several years as of late October 2026. Stock changes daily, so treat these as a snapshot.
| Model year | Lowest listed price | Examples on the year page |
|---|---|---|
| 2011 | $2,849 | 4.3 LU3, 4.8 L20, 5.3, 6.0 LZ1 hybrid |
| 2013 | $3,163 | 4.3 LU3, 4.8 L20, 5.3 LMG and LC9, 6.2 L9H |
| 2015 | $2,611 | 4.3 LV3, 5.3 L83, 6.2 |
| 2017 | $3,878 | 4.3 LV3, 5.3 L83 and L8B |
| 2020 | $4,749 | 2.7 L3B, 4.3 LV3, 5.3 L82 and L84, 3.0 diesel |
| 2021 | $4,733 | 2.7 L3B, 4.3 LV3, 5.3 L84 |
| 2022 | $4,079 | 2.7 L3B, 5.3 L84, 3.0 LM2, 6.2 L87 |
| 2023 | $5,654 | 3.0 LZ0 diesel |
The 6.2L L87 is the outlier. The 2022 L87 we have listed is priced at $12,979 to $14,277, well above the 5.3s.
Here are a few current listings so you can see how each engine is labeled:
- 2013 Silverado 1500 5.3L LC9 (VIN 7)
- 2015 Silverado 1500 5.3L L83 (VIN C)
- 2017 Silverado 1500 5.3L L8B eAssist (VIN R)
- 2020 Silverado 1500 5.3L L82 (VIN F)
- 2021 Silverado 1500 5.3L L84 (VIN D)
- 2020 Silverado 1500 2.7L L3B turbo (VIN K)
The engine price is only part of the bill. Labor, fluids, gaskets and the parts you transfer from your old engine add up. Our used engine replacement cost guide breaks down what to budget.
Silverado vs Sierra: same engines
The GMC Sierra 1500 is the Silverado's twin and uses the same engine families with the same RPO codes. If a Sierra engine has the same model year range, RPO code and VIN digit as yours, it's the same engine. That widens your options, so it's worth checking our Sierra 1500 engine listings too.
Questions to ask before you buy
- Does the RPO code match mine? Not just the displacement. L82 vs L84 and L83 vs L8B matter.
- What's the mileage, and how was it verified? See how many miles is good for a used engine for what to expect.
- Was it tested before removal? Ask about compression, oil pressure or a run test.
- What's included? Know whether you're getting a long block or a more complete engine with intake and accessories. Our guide to long block vs short block vs complete engine explains the difference.
- For an L87, what's the donor VIN? That lets you check recall status.
For a general checklist, see what to look for when buying a used engine.
Warranty, shipping and returns
Every used engine from StateAutoParts comes with a 2-year limited parts warranty. Read the terms before installation, because coverage depends on following the install and maintenance requirements. Our used engine warranty guide explains what typically voids coverage.
See our shipping policy for delivery details and our return and refund policy before you order.
Once the engine is in, follow our after engine replacement checklist for the first oil change, break-in and the things to watch in the first few hundred miles.
Bottom line
Find your 8th VIN digit and RPO code first, match them exactly, and don't let anyone tell you every 5.3 is the same. With the right code, a used Silverado 1500 engine is often the most affordable way to keep a solid truck on the road. Still comparing trucks? Our Ford F-150 used engine guide covers the same questions for Ford.
