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4 Best DOD Delete Kit | Stop AFM From Killing Your Chevy Engine

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Specs are compiled from manufacturer listings and verified buyer reviews and can change over time — please confirm the key details on the product page before buying.

Active Fuel Management (AFM) makes your 5.3L V8 shut down half its cylinders on the highway to save gas. But that same system causes a death-rattle tick by 120,000 miles. A collapsing AFM lifter (a special lifter that can collapse to deactivate a cylinder) fills your oil pan with metal shavings and often destroys the camshaft (the shaft with lobes that opens and closes your engine’s valves). A dod delete kit replaces all that failing AFM hardware with standard parts. Your engine then runs on all eight cylinders, all the time, the way a Chevy V8 should. This guide compares four DOD delete kits by completeness and owner-reported reliability.

I’m Mohammad Maruf — the founder and writer behind WellFizz. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.

The core job of a dod delete kit is to swap your engine’s AFM lifters and camshaft for standard parts that cannot fail — and the best choice depends on balancing an all-inclusive gasket set against the risk of a noisy lifter right from the start.

Our Picks at a Glance

Yunnergo Camshaft Lifter Kit 5.3L V8 for AFM/DOD Engine Issues
Best OverallYunnergo Camshaft Lifter Kit 5.3L V8 for AFM/DOD Engine Issues3.4★7 ratingsThe most complete all-in-one package you can buy for a first-time DOD delete — it includes a valve cover, which the SUSUCAR kit does not.Check Price on Amazon

How To Choose The Best DOD Delete Kit

Choosing the wrong DOD delete kit can stretch a weekend job into weeks of sourcing parts. Prioritize these three factors when selecting a kit.

Vehicle Fitment and Engine Code

Not every 5.3L V8 is the same. Your VIN’s 8th character tells you the engine code — LMG, LC9, LY5, or L33. A kit that lists your exact code and model year (especially 2007-2013 Silverado, Tahoe, Sierra, and Yukon) will bolt in without drilling or modifications. Verify fitment before purchasing.

Completeness of the Gasket Set

A true “all-in-one” kit should include MLS (multi-layer steel, a durable gasket material) head gaskets, a full head bolt set, timing cover gaskets, a valley cover plate (a metal plate that seals the top of the engine between the cylinder heads), intake manifold gaskets, and a crankshaft bolt. Missing a single gasket can delay your build by a day. The most complete kits also pack in an oil pump and timing chain set.

Lifter Quality and Camshaft Specs

AFM engines are notorious for lifter failure. A delete kit replaces the collapsing AFM lifters with fixed LS7-style non-AFM lifters (originally designed for the Corvette Z06’s LS7 engine) that are physically simpler and far more reliable. The camshaft specs that matter are duration (how long a valve stays open) at 0.050-inch lift and lobe separation angle (LSA, the angle between intake and exhaust lobe centerlines). The kits here typically use a 199°/191° duration with a 114-degree LSA, which keeps the idle stable while improving throttle response for towing.

Quick Comparison

Model Best For Kit Completeness Item Weight Cam Specs Amazon
Yunnergo Camshaft Lifter Kit★ Best Overall Quiet-running build Cam, 16 LS7 lifters, trays, MLS gaskets, bolts, valve cover 27.9 pounds 199°/191°,.466″/.457″ lift, 114° LSA Amazon
SUSUCAR Non AFM DOD Disable Kit Highest overall rating Cam, 16 lifters, valley cover, gaskets, bolts Hydraulic roller, 1-bolt Amazon
Gledewen AFM Disabled Kit Most reviewed kit Cam, 16 lifters, valley plate, MLS gaskets, bolts, timing cover 28.7 pounds OE replacement spec Amazon
ZIDUASNEB Non-AFM DOD Disable Camshaft Lifter Kit Most complete bundle Cam, 16 lifters, oil pump, timing chain, gaskets, bolts 199°/191°,.466″/.457″ lift, 114° LSA Amazon

In‑Depth Reviews

★ Best Overall

1. Yunnergo Camshaft Lifter Kit 5.3L V8 for AFM/DOD Engine Issues

16 LS7 Lifters + TraysMLS Head Gaskets

The most complete all-in-one package you can buy for a first-time DOD delete — it includes a valve cover, which the SUSUCAR kit does not.

Where the SUSUCAR kit gives you the essentials, the Yunnergo kit throws in extras that save another trip to the parts store: 16 LS7 lifters with their dedicated trays and guides, M295 camshaft, MLS multi-layer steel head gaskets, a full head bolt set, a crank bolt, timing cover gaskets, a metal gasket, a valley cover, and a valve cover with hardware. The camshaft is a hydraulic roller (a cam that uses roller bearings on the lifter to reduce friction) with a 199°/191° duration at 0.050-inch lift, 0.466″/0.457″ lift, and a 114-degree lobe separation angle (LSA) — the same stable, tow-friendly profile that the premium kits use.

The owner feedback is a split story. Several buyers report that the kit installed cleanly and disabled AFM without a hitch — “works perfect,” as they put it. But a separate group describes a persistent loud tick after assembly. That contradiction likely depends on installation technique and the critical need for a full ECU tune. If the computer still tries to command DOD mode, the standard lifters will not respond to that signal the way AFM lifters would, and the result can be noise. The kit itself is not designed, manufactured, or intended for use on public roads or street-legal vehicles — that note is in the listing — so this is strictly a performance/off-road part.

At 27.9 pounds, it is the lightest full kit in the comparison, which reflects its focus on a clean, no-frills parts bundle rather than an overstuffed box.

What wins owners over

  • Includes valve cover with hardware — one less separate purchase
  • MLS gaskets rated for high heat and pressure for towing use
  • Drop-in fit for 2007-2013 Silverado, Sierra, Tahoe, Yukon with LMG or L33 engine code

What to watch for

  • A meaningful number of owners mention a post-install lifter tick, often linked to missing ECU tuning
  • Street-legal disclaimer means you need to confirm your local emissions laws before buying

Best for the builder who wants everything in one box: the valve cover, trays, and MLS gaskets mean you are not hunting for a single extra part — just budget for the tune.

Look elsewhere if: you want a proven quiet-first reputation from the start; the mixed noise reports suggest this kit rewards experience more than it forgives mistakes.

2. SUSUCAR Non AFM DOD Disable Kit with Camshaft, Lifters and 5.3 Head Gasket Set

Non-AFM LS7 LiftersIncl. Valley Cover & Gasket Set

The highest-rated kit in the group, and the one owners call a perfect replacement — no lifter noise pattern.

This kit covers the broadest vehicle range in the lineup — from a 2005 Buick Rainier all the way up to a 2014 Chevrolet Suburban — plus every mainstream 5.3L GM truck and SUV in between. Inside the box you get a single-bolt camshaft, 16 non-AFM LS7 lifters with plastic guides, a Gen 4 (the fourth generation of GM’s small-block V8) valley cover plate with its own gasket and bolts, MLS head gaskets, cylinder head bolts, a crankshaft bolt, a front timing cover gasket set, and an intake manifold gasket made of metal. That is everything a mechanic needs for a straight swap without an extra parts run.

Owner feedback for this kit is the most positive among the four. Owners across the reviews consistently describe it as a “perfect fit” for an AFM delete job, and the crowd consensus is that you can button the engine back up with confidence. Professional installation is recommended; skipping an ECU tune will leave the computer trying to engage DOD mode that the hardware no longer supports.

At 27.9 pounds, it is a touch lighter than the Gledewen kit (28.7 pounds), which reflects a slightly tighter parts count — you get the essentials, not the extras like an oil pump or timing chain.

Owner-tested reliability: The highest average rating of any kit here, and every single written review describes a smooth fit with no complaints about lifter noise or missing hardware.

Reach for this if: you want the safest bet — a kit that fits the widest range of Chevy and GMC 5.3L trucks, ships complete with the critical gaskets, and has no pattern of premature lifter noise in the owner community.

Think twice if: you expect a bundled oil pump or timing chain set — this kit omits those extras, so budget for them separately if your build calls for a full front-cover refresh.

Top Performer

3. Gledewen DOD AFM Disabled Kit With Camshaft Lifters For 5.3 Truck SUV Engine

3-Year WarrantyOE Number-Compatible

The most-reviewed kit on this list, backed by a 3-year warranty that no other brand matches — but the noise complaints are the loudest here.

The Gledewen kit fits the same core 2007-2013 Chevy and GMC 5.3L lineup (Silverado, Tahoe, Suburban, Avalanche, Sierra, Yukon) plus the 2005-2009 Saab 9-7X, GMC Envoy, and Isuzu Ascender. The package includes one camshaft, 16 valve lifters, a valley plate, MLS head gaskets, a head bolt set, a front timing cover gasket set, and a crankshaft bolt. The camshaft is precision-machined from high-strength alloy steel with an anti-corrosion coating — a detail that matters when you are sealing this engine up for another 100,000 miles.

This is where the owner experience splits hard. A good number of buyers call it a solid, complete kit that runs great after reprogramming. But the other camp is emphatic — “cam bearings destroyed by metal flakes; oil pressure dropped, engine chattered,” as one review puts it. And the recurring complaint about noise is loud enough that Gledewen explicitly includes a lifter break-in procedure in the listing: a required 20-minute run-in before you put the engine under load. Miss that step, and the noise reports suggest the damage is real.

At 28.7 pounds, it is the heaviest kit in the comparison, which is a 3% weight increase over the Yunnergo kit — likely due to a more heavily built cam core.

The 3-year warranty matters here: Gledewen promises a carefree replacement or refund if the kit fails, cracks, or stops working — which is an unusually long safety net for a DOD delete kit.

Pick this if: you are an experienced DIY mechanic who will follow the break-in procedure to the letter and already knows you need a separate ECU tune — the 3-year warranty is genuine confidence.

skip it if: you want the cleanest “install and forget” reputation; the noise complaints are too frequent for a first-time builder to gamble on.

Premium Pick

4. ZIDUASNEB 5.3 Non-AFM DOD Disable Camshaft Lifter Kit for GM Chevy 5.3L V8

Includes Oil PumpIncludes Timing Chain Kit

The only kit that bundles an oil pump and timing chain — a genuine full front-cover rebuild in one box, but with the tightest return window.

This is the most complete mechanical refresh you can buy as a single package. Alongside the non-AFM camshaft and 16 non-AFM lifters, you get an oil pump, timing chain kit, cylinder head gasket set with timing cover, a bolts set, a harmonic balancer bolt, valve lifter seats, and a cylinder head gasket set. The camshaft matches the same proven specs as the Yunnergo kit: 199°/191° duration at 0.050-inch, 0.466″/0.457″ lift, 114-degree lobe separation, and a 1-bolt gear attachment. The fitment list is enormous — every 5.3L GM platform from the 2005-2009 Saab 9-7X through the 2010-2014 Suburban and Yukon XL.

The owner verdict is the hardest to read. Several buyers call the kit “very complete” and say it works well. But the most emphatic review warns of defective parts and a 30-day return window that does not account for the multi-day installation time — “do they understand how long it takes to install these parts to find out they are defective?” Another owner found that even after priming the lifters for three full days, the lifters still ticked at initial startup. The listing itself acknowledges the need for ECU tuning to fully disable AFM/DOD. The 1-year warranty is shorter than the Gledewen’s 3-year coverage, which is a meaningful gap when the install labor is that high.

The oil pump and timing chain inclusions make this kit ideal for anyone doing a full front-end rebuild — but the lifter-quality questions mean you need to inspect every part before assembly.

The big advantage

  • Only kit in the group with an oil pump and timing chain set — no extra orders for a full rebuild
  • Massive vehicle coverage including Buick Rainier, Isuzu Ascender, and Saab 9-7X

The honest risk

  • Pattern of lifter noise despite proper oil priming — a small but real quality-control concern
  • 30-day return window is tight for a job that requires a full weekend or more

Buy this if: you are already planning to replace your oil pump and timing chain while you have the front cover off — the bundle saves you from buying those two major components separately.

Do not buy this if: you cannot afford a potential disassembly-and-return scenario; the 30-day window combined with reports of noisy lifters makes this a higher-risk choice for a first-time DOD delete.

Understanding the Specs

Camshaft Duration and Lift

The numbers 199°/191° at 0.050-inch tell you how long the intake and exhaust valves stay open at a specific lift point. A longer duration shifts power higher in the RPM range. The 0.466″/0.457″ lift is the physical height the cam lobe pushes a valve. Stock-adjacent numbers like these keep the idle smooth and the powerband where you need it for daily driving and towing — no lumpy race-idle.

Lobe Separation Angle (LSA)

The 114-degree LSA in these kits is the angle between the intake and exhaust lobe centerlines. A wider LSA (114° is on the wide side) reduces overlap, which stabilizes idle vacuum and lowers emissions. For a truck that tows or hauls, this matters because you want predictable vacuum for power brakes and a steady idle when the engine is under load.

LS7 Lifters vs AFM Lifters

AFM lifters have a collapsing mechanism that the engine computer triggers to shut down two cylinders. That tiny mechanism is the failure point. Non-AFM LS7 lifters are solid, fixed-height units originally designed for the Corvette Z06’s LS7 engine. They cannot collapse, so they cannot generate the metal shavings that destroy cam bearings and oil pumps.

The ECU Tune Requirement

A DOD delete kit replaces only the mechanical parts. The engine computer (ECU) still carries the software instructions to enter AFM/DOD mode. If you do not disable that with a custom tune, the computer may send signals that the new non-AFM hardware ignores — leading to a check-engine light, poor fuel trims, or a ticking sound as the lifters sit in a state the computer did not expect.

FAQ

Will a DOD delete kit fit my 2007 Chevy Silverado 1500 with the 5.3L V8?
It depends on the 8th digit of your VIN. If the letter is 0 (LMG) or B (L33), most of the kits listed here are a direct drop-in fit. If your engine code is LC9 or LY5, double-check the kit’s compatibility note — many include those as well, but the Yunnergo and Gledewen kits explicitly list LMG and L33 only.
Do I need a new ECU tune after installing a DOD delete kit?
Yes, in almost every case. The kit removes the mechanical parts that enable DOD mode, but your truck’s computer still has the software instructions to command that mode. Without a tune, you can get a check-engine light, rough idle, or a ticking noise. All four kits in this guide mention the need for ECU tuning.
How long does it take to install a DOD delete kit?
For an experienced DIY mechanic with a full tool set, plan on a full weekend. You need to remove the intake, valve covers, cylinder heads, timing chain, oil pan, and lifters. The return window on some kits is 30 days, so factor that into your timeline before you start.
Can I reuse my old AFM valley cover?
You can, but it is not recommended. The AFM valley cover has the oil-pressure control valves (the AFM solenoids) built into it. Most DOD delete kits include a standard non-AFM valley cover plate that eliminates those solenoids entirely, which removes one more potential failure point from the oil system.
What is the difference between an AFM lifter and an LS7 lifter?
An AFM lifter has a spring-loaded collapsing mechanism that allows it to stop following the cam lobe when the computer commands cylinder deactivation. An LS7 lifter is a fixed-height, solid-body unit from the Corvette Z06. It cannot collapse, so it cannot fail the way AFM lifters do. Every kit here replaces the AFM lifters with non-AFM (often LS7-style) lifters.
Are DOD delete kits legal for street use?
Some are explicitly labeled as not designed for use on public roads or street-registered vehicles. The Yunnergo kit carries that disclaimer. You should check your local emissions laws before buying. In many states, removing emissions equipment is illegal, and DOD is technically part of the emissions strategy on some model years.
How many lifters come in a DOD delete kit?
All four kits reviewed here include 16 non-AFM lifters — one for each cylinder in the 5.3L V8. The AFM design uses only 8 special lifters (cylinders 1, 4, 6, and 7 on some engines), but a full delete requires replacing all 16 so the valvetrain is uniform.
Can I install a DOD delete kit without removing the engine?
Yes, you can do it in the truck with the engine in place. You remove the intake, valve covers, cylinder heads, timing cover, and oil pan from above and below. It is tight, especially in the Silverado and Yukon engine bays, but it is a common driveway job for experienced DIYers.
What tools do I need for a DOD delete?
You will need a full socket and wrench set (metric and SAE), a torque wrench capable of reading in inch-pounds and foot-pounds, a harmonic balancer puller, a camshaft holding tool (or a long bolt and careful marking), and a lifter removal tool (a magnet on a stick often works). An engine support bar is helpful if you are removing the oil pan.
Will a DOD delete improve fuel economy?
Not directly. The purpose of a DOD delete is to prevent engine failure from collapsed lifters, which is a reliability fix, not a fuel-economy mod. On the highway, you may see a slight drop in mpg compared to when AFM was functioning because all eight cylinders are running all the time. But that drop is negligible compared to the cost of replacing a camshaft and lifters after a failure.

Final Thoughts: The Verdict

For most buyers, the dod delete kit winner is the SUSUCAR Non AFM DOD Disable Kit because it has the strongest owner reputation for a clean fit and no lifter noise — the single biggest fear in this category. If you want the most complete single-box rebuild that also includes an oil pump and timing chain, grab the ZIDUASNEB kit, but inspect every lifter before installation. And for the longest warranty protection in the group, the Gledewen kit offers the most-reviewed option with a 3-year coverage window that no other brand matches.

How We Picked

We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.

Sources & Methodology

Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.

As an Amazon Associate, WellFizz earns from qualifying purchases. This does not affect which products we feature.

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Mo Maruf
Founder & Lead Editor

Mo Maruf

I created WellFizz to bridge the gap between vague wellness advice and actionable solutions. My mission is simple: to decode the research and give you practical tools you can actually use.

Beyond the data, I am a passionate traveler. I believe that stepping away from the screen to explore new environments is essential for mental clarity and physical vitality.

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