Description
Has the Displacement on Demand (DOD) or Active Fuel Management (AFM) system started ticking, sticking, or outright failed on your 2014–2018 GM 5.3L L83 truck or SUV? Valvetrain ticking, misfires, or collapsed lifters are frequent points of failure on Gen V engines. This SDPC direct-replacement repair kit equips you with all the essential OEM and premium components needed to repair collapsed lifters and restore factory valvetrain geometry without requiring aftermarket ECM recalibration or custom software tuning. Engineered specifically for 2014–2018 Gen V 5.3L L83 EcoTec3 platforms, this kit restores original engine performance and factory cylinder deactivation operation.
Tech Tip: We highly recommend replacing the Valve Lifter Oil Manifold (VLOM) valley cover during this service. Contaminated solenoids or restricted screens inside the original valley cover are leading causes of low oil pressure delivered to the AFM towers, which triggers lifter failure. You can add a brand-new OEM replacement VLOM assembly directly via the options menu.
L83 DOD / AFM Direct Repair Kit (2014–2018 Gen V 5.3L)
SKU: LTAFMREPAIR53
Platform: Chevrolet Silverado / Suburban / Tahoe & GMC Sierra / Yukon 5.3L L83 EcoTec3 V8
| Component | Included Specification / Option |
|---|---|
| Engine Platform | GM Gen V 5.3L L83 EcoTec3 V8 (2014–2018) |
| Repair Type | Direct OEM Factory AFM / DOD Repair (Retains Factory AFM Function) |
| Camshaft Option | OEM Replacement Gen V 5.3L AFM Camshaft |
| Active Fuel Management Lifters | (8) Genuine OEM GM Active AFM Roller Lifters |
| Non-AFM Lifters (Option) | Optional Add-On: (8) GM Non-AFM Hydraulic Roller Lifters (Complete 16-Lifter Set) |
| Lifter Trays / Guides | Set of (4) Brand-New Gen V Lifter Guide Trays |
| Cylinder Head Gaskets | Genuine GM OEM L83 Multi-Layer Steel (MLS) Head Gaskets (Pair) |
| Cylinder Head Fasteners | Genuine GM Torque-To-Yield (TTY) Head Bolt Kit |
| Crankshaft Balancer Bolt | Genuine GM Harmonic Balancer Bolt |
| Timing Cover Seals | Water Pump Gasket & Front Main Crankshaft Seal |
| Direct Injection Fuel Lines | High-Pressure Fuel Pump (HPFP) Fuel Feed Line (Single-Use Required Replacement) |
| AFM Tower Plugs | (8) Texas Speed & Performance AFM Valley Tower Plugs |
| Valley Cover / VLOM (Option) | OEM Factory Replacement Valve Lifter Oil Manifold (VLOM Assembly) |
| ECM Calibration Required | No ECM Calibration Required (Retains 100% Factory Calibration) |
Key Kit Features & Service Highlights:
- Direct OEM Repair: Restores factory AFM cylinder deactivation performance, fuel economy, and factory operating characteristics without needing aftermarket tuners or ECM calibrations.
- Factory-Spec Camshaft & Lifters: Replacing active lifters alongside a brand-new factory 5.3L AFM camshaft ensures correct valve events and eliminates recurring lifter failure caused by scored or flattened cam lobes.
- Critical High-Pressure Fuel Hardware: Includes mandatory single-use Gen V direct injection high-pressure pump fuel lines to ensure safe, leak-free high-pressure fuel rail reassembly.
- OEM-Grade Sealing & Fasteners: Ships with genuine GM MLS head gaskets, front cover seals, water pump gaskets, and torque-to-yield cylinder head and harmonic balancer bolts.
- Complete Lifter Refresh Option: Choose to include 8 matching non-AFM roller lifters for complete top-end valvetrain renewal during reassembly.
- Recommended VLOM Replacement: Installing an updated OEM replacement VLOM ensures clean, unrestricted oil flow to the AFM solenoids, safeguarding newly installed lifters against oil starvation.
Details
- LTAFMREPAIR53
- LTAFMREPAIR53
- SDPC
- In Stock - Orders by 2pm CST, ship within 1-2 business days.
Categories
Shipping Information
- Item Requires Shipping
- H12.00"
- Ships within 1-2 business days
- FREE SHIPPING ON THIS ITEM Within The Contiguous United States!
