aFe 50-70043R is a Momentum GT cold air intake for the 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500 with the 4.3L V6. One pre-oiled five-layer cotton gauze Pro 5R filter connects to a windowed housing and XLPE intake tube. It reuses the factory inlet scoop, MAF sensor and mounting hardware. The manual requires resetting the Air Filter Life System to 100% before disabling it using the vehicle owner manual procedure.
The exact current manufacturer and complete manual specify 2019-2021 Silverado 1500 and Sierra 1500 with the 4.3L V6. Original Silverado Custom, WT and Sierra Base ranges remain unchanged. The exact selected-part named table also supports Silverado Custom Trail Boss 2019-2021, added with the same 4.3L engine condition. A trim name alone does not approve another available engine. Shared tube/housing service numbers with another kit do not extend this complete system to a V8, 2.7L turbo, HD truck or later model year.
| Years | Make | Model | Named trim; actual engine and hood requirements apply |
|---|---|---|---|
| 2019-2021 | Chevrolet | Silverado 1500 | Custom |
| 2019-2021 | Chevrolet | Silverado 1500 | WT |
| 2019-2021 | GMC | Sierra 1500 | Base |
| 2019-2021 | Chevrolet | Silverado 1500 | Custom Trail Boss |
Verify 50-70043R against the actual engine, sensor and vent connections, mounting locations and applicable emissions requirements before ordering.
| Brand | aFe POWER |
| Manufacturer Part Number | 50-70043R |
| Series | Momentum GT |
| Filter | One 24-91147 Pro 5R; five oiled cotton gauze layers |
| Filter dimensions | 5.5-inch flange x 8-inch base x 8-inch inverted top x 9-inch height |
| Tube / housing | XLPE tube 05-5070044B1; housing 05-5070044B2 with inspection window |
| Engine / years | 4.3L V6; 2019-2021 Silverado/Sierra 1500 |
| Bellows | 05-01510; (3.75 x 3)-inch ID x 4.75-inch length |
| Sensor | Reuse original MAF; two supplied M4 x 8 mm Torx screws |
| Filter Life System | Reset to 100% before disabling using the vehicle owner manual procedure |
| Recheck / torque | 100-200 miles; no numeric clamp torque in the exact manual |
| Performance evidence | No exact linked airflow or dyno chart; no numeric gain certified |
| Emissions | Manufacturer states not currently CARB exempt; California purchase and registered-vehicle restriction |
| Quantity | Manufacturer service part | Component |
|---|---|---|
| 1 | 24-91147 | Selected Pro 5R oiled filter; dry alternative in shared bill is not an extra supplied filter |
| 1 | 05-5070044B1 | Intake tube |
| 1 | 05-5070044B2 | Housing |
| 1 | 05-01510 | Silicone bellows coupling, (3.75 x 3)-inch ID x 4.75-inch length |
| 1 | 03-50265 | T-bolt clamp, 3-13/16 to 4-1/8 inches |
| 1 | 03-50320 | T-bolt clamp, 3-1/16 to 3-3/8 inches |
| 1 | 05-01339 | Aluminum vent fitting |
| 1 | 03-50267 | Housing T-bolt clamp, 8-5/16 to 8-5/8 inches |
| 1 | 05-01429 | Silicone auxiliary inlet plug |
| 2 | 03-50491 | M4 x 8 mm Torx screws |
| 2 | 03-50492 | Nylon push-mount cable ties |
The bill lists two supplied cable ties. The illustrated procedure uses one supplied captive tie in the upper housing hole and retains a factory harness tie at the scoop-side hole. The filter flange clamp is a separate installation operation from the three itemized T-bolt clamps. Transfer the original MAF, two rear pin grommets and front metal insert/grommet. Retain the original housing nut, scoop clip, ten sight-shield clips and two hood-latch screws. No new MAF, scoop, grommets or hood-latch hardware are itemized. Accessory products pictured later in the manual are not included.
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
One oiled Pro 5R filter, tube, windowed housing, bellows, three itemized T-bolt clamps, vent fitting, inlet plug, two M4 x 8 mm screws and two push-mount ties. Original mounting and scoop hardware are reused.
Is the filter dry or oiled?The selected 24-91147 Pro 5R filter has five oiled cotton gauze layers. The dry alternative in the shared manual is not the filter supplied with this system.
Which Custom Trail Boss engine is supported?The exact named table supports 2019-2021 Custom Trail Boss with the same manufacturer 4.3L V6 scope. A trim name does not approve its other engine choices.
What must happen to the Air Filter Life System?Reset it to 100% first, then disable it following the vehicle owner manual. The intake manual warns that skipping this sequence may cause a persistent check-air-filter message.
Are a new MAF and mounting grommets supplied?No. Transfer the original MAF using the supplied screws, both rear pin grommets and the front metal insert/grommet.
Which factory fasteners must be restored?Restore the housing nut, scoop clip, all ten sight-shield clips and both hood-latch screws. Retain the factory harness tie by the scoop.
Does the auxiliary inlet have to stay open?The supplied plug can close it. The manual describes the open inlet as the maximum-airflow option, but supplies no measured plug-position gain.
What torque and recheck interval are specified?The exact manual gives no numeric torque or battery-disconnection step. Install the tube at the throttle-body coupling first, then the filter; recheck bolts, clamps and connectors after 100-200 miles.
Verify aFe 50-70043R. Read all twenty pages and figures A-N with a cool engine. Reset the Air Filter Life System to 100% first, then disable it per the vehicle owner manual; otherwise a persistent Check Engine Air Filter System message may appear. Disconnect MAF and crankcase breather, loosen original duct clamps and rotate the outlet duct counterclockwise to release it from the eyelet. Release the harness locking tab and two ties. Save both hood-latch screws, all ten sight-shield clips, scoop clip and housing nut. Move the scoop clear and lift the housing off its stud toward the vehicle front, freeing its two pin grommets. Transfer both rear pin grommets and the front metal insert/grommet. Transfer MAF with the supplied M4 x 8 mm screws and install the aluminum vent fitting. Seat the housing pins in the bracket, restore the nut and scoop clip, then reinstall the sight shield with all ten clips and hood latch with both screws. Fit the large housing clamp and filter/flange clamp loosely. The auxiliary inlet may be closed with the plug; no measured gain for either plug position is supplied. Place the bellows and smaller TB337SS clamp on the throttle body, then the larger TB412SS clamp on the bellows. Install tube into the throttle-body coupling first, then the filter; align and tighten clamps. Reconnect crankcase breather and MAF. Secure the harness with one supplied captive tie in the upper housing hole and the factory tie at the scoop-side hole. Check all fasteners, clamps and connectors after 100-200 miles. No battery-disconnection step or numeric torque is specified.
The exact current manufacturer page and all twenty pages of its own manual, complete bill and figures A-N were read and viewed. The selected filter is Pro 5R oiled cotton; the dry filter listed as an alternative in the shared bill is not included alongside it. The complete kit remains scoped to the 4.3L V6 despite shared 70044 tube/housing service numbers. Exact selected-part retailer fitment corroborates the added Custom Trail Boss group, with engine condition retained; original bounds are preserved. No exact linked flow chart or dyno report is supplied, so numeric airflow, horsepower, torque and fuel-economy gains are not claimed. The manufacturer describes the optional auxiliary inlet, but does not supply a measured plug-position comparison. The manual warranty table lists two years for air intake systems subject to its original-purchaser, receipt, installation and maintenance terms. Current manufacturer states this product is not CARB exempt and is unavailable for California purchase or use on California-registered vehicles.
California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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