The K2XX (3rd Generation) Chevrolet Silverado 1500 Clubhouse
Chevy Silverado K2XX (2014-2018) Owner's Hub
The K2XX redesigned the Silverado 1500 with EcoTec3 engines (direct injection, Active Fuel Management, variable valve timing). A 4.3L V6, a 5.3L L83 V8 (355hp), and a 6.2L L86 V8 (420hp) on the top trims. AFM continues from the GMT900 era, and collapsed lifters on the 5.3L are still the headline risk. The 8-speed 8L90 automatic, added in 2015 on the 6.2L, brings its own torque converter shudder. A solid, plentiful truck, but buy with the lifter and oil-consumption history in mind.
- Production
- 2014-2018
- Engines
- 4.3L · 5.3L · 6.2L
- Used market
- 14k-42kUSD
What your Silverado 1500 takes
The parts and fluids that fit this generation. Specs we publish are confirmed against two independent sources; the rest fill in as we verify them.
- Wiper blades22" driver · 22" passenger✓ VerifiedView
- Spark plugs4.3L EcoTec3 LV3: 41-168 · 5.3L EcoTec3 L83: 41-168 · 6.2L EcoTec3 L86: 41-168✓ VerifiedView
- Battery4.3L EcoTec3 LV3: Group 48 · 5.3L EcoTec3 L83: Group 94R · 6.2L EcoTec3 L86: Group 94R✓ VerifiedView
- Wheel fitment6x139.7 · 78.1mm bore · M14x1.5 · 17x8 ET24✓ VerifiedView
- Engine oil5W-30 (6 qt) · 0W-20 (8 qt)From owner's manualShop
- Headlight bulbsH11 low · 9005 high · 5202 fogFrom owner's manualShop
- CoolantDEX-COOLFrom owner's manualShop
- Transmission fluid5.3L EcoTec3 L83: DEXRON VI · 6.2L EcoTec3 L86: DEXRON HPFrom owner's manualShop
- Key fob batteryCR2032From owner's manualShop
- Differential fluidRear: SAE 75W-85 Synthetic Axle Lubricant (GM Part No. 19300457) · Front: SAE 75W-90 Synthetic Axle Lubricant (GM Part No. 88900401) · T-case: DEXRON-VI Automatic Transmission FluidFrom owner's manualShop
- Oil filterParts in catalogShop
- Engine air filterParts in catalogShop
- Cabin air filterParts in catalogShop
- Brake rotorsParts in catalogShop
- Tire sizeNot catalogued yetFind yours soon
- Brake fluidNot catalogued yetFind yours soon
- Tire pressureNot catalogued yetFind yours soon
- Serpentine beltNot catalogued yetFind yours soon
- Brake padsNot catalogued yetFind yours soon
- ThermostatNot catalogued yetFind yours soon
- A/C refrigerantNot catalogued yetFind yours soon
- Fuel filterNot catalogued yetFind yours soon
- Power steering fluidElectric power steering — no fluid.N/A
Floor mats
Our top custom-fit pick for the Chevrolet Silverado 1500 is the Husky Liners Weatherbeater Floor Mats 1st & 2nd rows.
Floor mats for the Chevrolet Silverado 1500 →Heritage · K2XX (3rd Generation) Silverado 1500
2014-2018- 1999
Silverado name arrives
Chevrolet splits the full-size truck from the C/K line and launches the Silverado nameplate.
- 2014
K2XX redesign
The third-generation Silverado debuts the EcoTec3 engine family with direct injection, AFM, and variable valve timing.
- 2016
Mid-cycle refresh
A restyled front end, HID and LED lighting on upper trims, and the 8-speed automatic expands to the 5.3L.
The third-generation Silverado 1500, built on GM's K2XX platform from 2014 through 2018, is one of the most common half-ton trucks on the used market. It is the truck that introduced the EcoTec3 engine family: direct injection, Active Fuel Management cylinder deactivation, and variable valve timing across a 4.3L V6 and two V8s. That makes it cheap to find, well-supported by parts, and genuinely capable. It also means the engine has a specific maintenance story every buyer should understand before signing.
The engines
Three EcoTec3 engines powered the K2XX 1500. The 4.3L LV3 V6 (285 hp) is the fleet and base-truck workhorse and takes SAE 5W-30 dexos1, roughly 6 quarts. The 5.3L L83 V8 (355 hp) is the volume seller, and the 6.2L L86 V8 (420 hp) sits in the LTZ and High Country trims. Both V8s take SAE 0W-20 dexos1, about 8 quarts with a filter. All three share the ACDelco PF63 oil filter and the ACDelco 41-168 iridium spark plug, gapped at 0.040 inch with a roughly 97,500-mile interval.
The AFM problem you cannot ignore
Active Fuel Management shuts down half the cylinders under light load to save fuel. On the 5.3L L83 it is also the single biggest reliability risk in this generation. The AFM lifters wear at their locking pins and can collapse, and a collapsed lifter quickly scores the camshaft. Caught at the first tick it is a lifter job. Ignored, it becomes a camshaft or a complete engine. A closely related issue is oil consumption: the AFM pressure-relief valve sprays oil onto the cylinder walls, fouling the oil-control rings until the engine burns measurable oil between changes. Many owners pre-empt both by disabling AFM with a tune and a lifter swap. When you shop a 5.3L, listen for a cold-start tick and ask for oil-consumption records.
The 8-speed and the rest
The 6-speed 6L80 automatic is the durable, uncomplicated choice and uses DEXRON-VI fluid. The 8-speed 8L90, added in 2015 on the 6.2L and expanded to the 5.3L upper trims in 2016, uses the separate DEXRON-HP fluid and is known for a torque-converter shudder at light throttle. GM's fix is a flush to Mobil 1 LV ATF HP, and most trucks respond well; a persistent shudder points at the converter. The other recurring complaint is the A/C condenser, which can develop pinhole leaks at its spot-welds just after the warranty. None of this is a dealbreaker on a well-kept truck, but it shapes which one you buy.
What it takes
Fluids are straightforward once you know the splits: dexos1 0W-20 for the V8s and 5W-30 for the V6, DEX-COOL orange coolant on a long interval, DOT 3 brake fluid, and the right transmission fluid for your gearbox. The 4WD trucks add DEXRON-VI ATF for the transfer case (not a gear oil) plus synthetic gear oil in both axles, 75W-90 up front and 75W-85 in the rear, and the G80 locking rear differential specifically must not get a friction modifier. The battery is a Group 48 (H6). Wipers are a simple 22-inch pair with no rear blade.
The verdict
A clean-history 6.2L in a nicer trim is the K2XX sweet spot, and a documented 5.3L whose owner already addressed AFM is a sensible, cheaper buy. Walk away from a high-mileage 5.3L with a lifter tick and no records, or a 2015-2016 6.2L with an unresolved 8-speed shudder. These are good, plentiful trucks. The price you pay is doing the homework on the engine before you buy.
Common problems, ranked by severity
1. AFM lifter failure on the 5.3L L83 V8
catastrophicThe cylinder-deactivating Active Fuel Management lifters wear at their locking pins and can collapse. Once a collapsed lifter scores the camshaft, the lobe wipes out fast and sends metal through the engine. Caught early it is a lifter job; ignored, it is a camshaft or full-engine replacement.
Years affected: 2014-2018
2. Electric power steering assist loss (recall 17V-414)
catastrophicA software fault could cause a temporary loss, then a sudden return, of power-steering assist at low speed on 2014 trucks. It drove recall 17V-414, covering roughly 690,000 GM trucks, with a dealer EPS software update as the fix. Confirm the recall is completed before buying a 2014.
Years affected: 2014-2014
3. 4WD transfer case shift to Neutral (recall 14V-374)
catastrophicAn electrical short could shift the four-wheel-drive transfer case to Neutral with no driver input, risking rollaway when parked or a loss of drive power while moving. It drove recall 14V-374 on 2014-2015 4WD trucks; the fix is a transfer-case control-module reprogram. Confirm it is done.
Years affected: 2014-2015
4. Excessive oil consumption on the 5.3L
expensiveOil is drawn through the PCV system and sprayed onto the cylinder walls by the AFM pressure-relief valve, clogging the oil-control rings so oil burns in the chamber. Many trucks exceed GM's 1 quart per 2,000 miles limit. Fixes range from a shielded AFM valve to a piston and ring replacement.
Years affected: 2014-2018
5. 8L90 8-speed shudder and torque converter
expensiveThe torque-converter clutch shudders at light-to-moderate throttle as the original fluid breaks down. It is worst on 2015-2017 trucks but carries into 2018. GM's fix is a flush to DEXRON-HP low-viscosity (the reformulated blue-label fluid). If the shudder persists, the converter may need replacing.
Years affected: 2015-2018
6. A/C condenser failure
expensivePinhole leaks open at the condenser's side spot-welds, losing refrigerant and killing the A/C, usually just after the factory warranty. Redesigned replacement condensers add welds and a bracket.
Years affected: 2014-2017
7. Brake-assist vacuum pump failure (code P1429)
expensiveThe mechanical pump that boosts the brakes wears and loses vacuum, setting code P1429 and a hard, high-effort brake pedal. It drove a fleet-wide recall (NHTSA 19V-645) covering 2014-2018 Silverado and Sierra 1500 trucks. Confirm the recall is completed; out of recall it is a pump replacement.
Years affected: 2014-2018
Year-by-year notes
- 2014
- K2XX launch. New EcoTec3 engine family, all paired to the 6L80 6-speed automatic. Most A/C-condenser and early-AFM complaints land here; the only K2XX year touched by the Takata airbag program.
- 2015
- The 8L90 8-speed automatic is introduced, paired to the 6.2L L86 in the top trims. First torque-converter shudder reports appear.
- 2016
- Mid-cycle refresh. Restyled front end with single headlamp units replacing the stacked design, new grille, and LED signature lighting. HID projectors on mid trims. The 8-speed expands to the 5.3L on LTZ and High Country.
- 2017
- Carryover year with minor trim shuffling.
- 2018
- Final full K2XX year before the T1XX arrives for 2019. A K2XX "Silverado 1500 LD" holdover also sold alongside the new truck into 2019.
Trim decoder
Work Truck (WT) (2014-2018)
Fleet/work-spec base.
LTZ (2014-2018)
Leather, navigation.
High Country (2014-2018)
Top-trim luxury, 6.2L V8 available.
What owners actually buy
Hand-picked from the CarCareTruth catalog, ordered to match the spec card above. Every score is health + chemistry + effectiveness, in one number.
Engine oil (0W-20 for the V8s, 5W-30 for the 4.3L V6; dexos1)
Oil filter (ACDelco PF63)
Engine air filter (ACDelco A3181C)
Cabin air filter (ACDelco CF188)
Spark plugs (ACDelco 41-168 iridium, gap 0.040 in)
Wiper blades (22" driver / 22" passenger)
Verified fit: 22″ both front blades · no rear wiper
Confirmed across 2 independent fitment sources. See blades that fit & add the right sizes to your cart →
Brake fluid (DOT 3)
Headlight bulbs (H11 low / 9005 high on halogen trims)
Battery (Group 48 / H6)
The shortlist
One top pick per category, fitting your Silverado 1500
Skip the comparison. The Best Of page shows the single highest-scored CarCareTruth product in every category that fits the k2xx (3rd generation) Silverado 1500.
See the Best Of →Sources
- 2016 Chevrolet Silverado 1500 Owner's Manual · accessed 2026-06-24
- NHTSA Recalls and Complaints, Chevrolet Silverado 1500 · accessed 2026-06-24
- Chevrolet Silverado (Wikipedia) · accessed 2026-06-24
