Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Engines and Components› Oiling Systems
Melling
Engine Cylinder Deactivation Delete Kit
SKU: M00L MDK100
Advanced — 4+ hours
Overview
Show original supplier description
Part #: MDK100
Melling offers an Engine Cylinder Deactivation Kit for converting Active Fuel Management engines to a Non-Active Fuel Management engines. The Melling Deactivation Kit includes all components need to complete the changeover. Vehicle Will Not Be CARB Compliant After The Vehicles Engine Control Module/Power Train Control Module Is Reprogramed. All Melling Engine Cylinder Deactivation engine components are developed, engineered, tested and manufactured with the highest standards of quality and materials.
Features:
- Complete, Engine-Matched Solution: Each kit bundles premium non-deactivation lifters, valley cover/block-off plugs, gaskets, and hardware engineered for your specific applicationsaving time and ensuring everything fits right the first time
- Upgrades Reliability for the Long Haul: Replaces failure prone deactivation lifters with Melling's high strength conventional lifters, reducing risk of collapse, misfire, or the notorious lifter tick," and extending valvetrain service life
- Restores Full Time Power & Sound: Eliminates cylinder shut off logic so all cylinders stay active under every condition, delivering smoother throttle response, a consistent exhaust note, and the full performance your V8 was built to deliver
- Performance Ready Platform: Provides the solid valvetrain foundation required for aftermarket camshafts, higher spring pressures, and tuningunlocking more horsepower without system limitations, all backed by Melling's proven quality
- Vehicle Will Not Be CARB Compliant After The Vehicles Engine Control Module/Power Train Control Module Is Reprogramed
- Intake and Exhaust Push Rods Included
HEMI MDS Delete Camshaft Kit For Active Fuel Management Engines
Vehicle Symptoms
- Engine misfire at low RPM or idle
- Excessive oil consumption or burning smell
- Check engine light with misfire or cylinder deactivation codes
- Rough idle or shaking after cold start
- Loss of power or hesitation when accelerating
Diagnostic Codes
- P0300 – Random or multiple cylinder misfire Det
- P0301 – Cylinder 1 misfire Det
- P0302 – Cylinder 2 misfire Det
- P0303 – Cylinder 3 misfire Det
- P0304 – Cylinder 4 misfire Det
- P0305 – Cylinder 5 misfire Det
- P0306 – Cylinder 6 misfire Det
- P0307 – Cylinder 7 misfire Det
- P0308 – Cylinder 8 misfire Det
- P0340 – Cam Pos Snsr A Ckt (B1 or Single Snsr)
- P0341 – Cam Pos Snsr A Ckt Range/Perf
- P0342 – Cam Pos Snsr A Ckt Low In
- P0343 – Cam Pos Snsr A Ckt High In
- P0344 – Cam Pos Snsr A Ckt Intermittent
Relevant Conversations
- AFM delete kit for Chevy Silverado 5.3L
- Melling MDK100 review and installation
- Symptoms of AFM lifter failure on GM trucks
- P0300 misfire after AFM deactivation
- How to disable AFM on 6.2L V8
- Best cylinder deactivation delete kit for 2014 Tahoe
- Melling vs Texas Speed AFM delete kit
- Lifter tick after cold start AFM engine
- Oil consumption fix with AFM delete
- Melling MDK100 compatible with 2018 GMC Sierra
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Melling |
| Part Number | M00L MDK100 |
Videos
MDS Delete Kit for Chrysler 5.7L HEMI Engines - Melling Part # MDK100
HEMI MDS Delete Kit Install by Melling
Ram Truck Hemi Reliability Fix —HV Oil Pump Upgrade + MDS Delete
Hemi 5.7 MDS delete, Lessons Learned
Eliminating Your Gen. 3 Hemi’s MDS Begins with a Summit Racing Non-MDS Camshaft
Hemi Tick Prevention Just Got Even Better! #MellingPerformance +GIVEAWAY
5.7 liter HEMI engine installation of the VVT actuator
Oil Pump for late model Gen 3 HEMI Engines from Melling Part number 10452HV
Melling Engine Parts Counterfeit Warning
Performance Oil Pump for certain 5.7L and 6.4L Hemi engines from Melling
HEMI 5.7L & 6.1L High Volume / High Performance Oil Pump - Melling 10342HV
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy