aFe 50-70042D is a Momentum GT cold air intake for the specified 2019-2024 Silverado 1500 and Sierra 1500 with the turbocharged 2.7L inline-four. The exact manufacturer manual explicitly names both nonsuffix kits and supplies one 21-91147 Pro DRY S filter. It transfers the original MAF and purge valve, uses the original scoop and mounting isolators, and requires resetting filter life to 100% before disabling it per the vehicle owner manual. The currently cataloged -1 revision is a different part identity and is not substituted for this listing.
The exact shared manufacturer manual explicitly names the nonsuffix kits for Silverado/Sierra 1500 2019-2024 with the 2.7L turbo inline-four. It does not describe a 2.7L V6. Exact selected-part named tables corroborate the displayed groups through 2024. Four original ranges extend from 2021 to 2024, while Sierra Base stays 2019-2021. Five missing groups are restored: Silverado RST 2019-2024, Custom Trail Boss and LT Trail Boss 2022-2024, Sierra Elevation 2019-2024 and Pro 2022-2024. Original start years are preserved; the 2019 Custom positive is retained despite one retailer table starting at 2020. Later 2025-2026 retailer positives remain held for nonsuffix revision and engine/connection confirmation. The current catalog returns a separate -1 revision, and one -1 application list has a 2021 Chevrolet gap; that revision-specific gap is not imposed on the explicitly 2019-2024 nonsuffix manual or treated as proof of incompatibility. No HD truck, SUV or different engine is inferred.
| Years | Make | Model | Named trim; actual engine and hood requirements apply |
|---|---|---|---|
| 2019-2024 | Chevrolet | Silverado 1500 | Custom |
| 2019-2024 | Chevrolet | Silverado 1500 | LT |
| 2019-2024 | Chevrolet | Silverado 1500 | WT |
| 2019-2021 | GMC | Sierra 1500 | Base |
| 2019-2024 | GMC | Sierra 1500 | SLE |
| 2019-2024 | Chevrolet | Silverado 1500 | RST |
| 2022-2024 | Chevrolet | Silverado 1500 | Custom Trail Boss |
| 2022-2024 | Chevrolet | Silverado 1500 | LT Trail Boss |
| 2019-2024 | GMC | Sierra 1500 | Elevation |
| 2022-2024 | GMC | Sierra 1500 | Pro |
Verify 50-70042D against the actual engine, sensor and vent connections, mounting locations and applicable emissions requirements before ordering.
| Brand | aFe POWER |
| Manufacturer Part Number | 50-70042D |
| Series | Momentum GT |
| Engine | 2.7L turbocharged inline-four, not V6 |
| Own exact manufacturer manual | Nonsuffix kits; Silverado/Sierra 1500 2019-2024 |
| Selected filter | One 21-91147 Pro DRY S; three oil-free synthetic layers |
| Filter dimensions | Service filter identity: 5.5-inch flange x 8-inch base x 8-inch inverted top x 9-inch height |
| Tube / housing | 05-5070042B1 / 05-5070044B2; shared housing alone does not establish complete-kit interchange |
| Coupling | 05-01758 silicone elbow; dimensions not stated in own bill |
| Tube clamps | 056 03-50009 and 044 03-50019; housing T-bolt remains separate |
| Transferred components | MAF, purge valve, five grommets and three metal inserts across housing/tube |
| Filter Life System | Reset to 100% first, then disable per owner manual |
| Performance evidence | No exact nonsuffix flow/dyno document verified; -1 gains are not borrowed |
| Torque / interval | No numeric torque, battery step or mileage interval in own manual |
| Emissions | Own manual states not currently CARB exempt and California restriction |
| Quantity | Manufacturer service part | Component |
|---|---|---|
| 1 | 21-91147 | Selected Pro DRY S filter; other-media entry is an alternative, not an extra filter |
| 1 | 05-5070042B1 | Intake tube |
| 1 | 05-5070044B2 | Housing |
| 1 | 05-01758 | Silicone elbow coupling; no dimensions printed |
| 1 | 03-50009 | 056 clamp, 3-1/16 to 4 inches |
| 1 | 03-50019 | 044 clamp, 2-5/16 to 3-1/4 inches |
| 1 | 05-01692 | 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 |
No new MAF or purge valve is supplied. Transfer both rear housing pin grommets and the front housing metal insert/grommet, plus both tube grommets with their metal inserts: five retained grommets and three metal inserts in total. Retain housing nut, scoop clip, ten sight-shield clips, two hood-latch screws, two tube mounting nuts and two engine-cover screws. The bill supplies two ties, while the procedure uses one supplied captive tie in the upper housing hole and a retained factory tie by the scoop. The filter flange clamp is separate from the two listed tube clamps and large housing clamp. No extra hose, valve, sensor assembly or mounting hardware is invented. Tube material descriptions differ across secondary listings; an aluminum-tube claim is not adopted from generic retailer attributes.
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 21-91147 Pro DRY S filter, tube, housing, silicone elbow, 056 and 044 tube clamps, housing clamp, aluminum vent fitting, plug, two M4 x 8 mm screws and two push-mount ties.
Is the 2.7L engine a V6?No. The exact manual specifies a turbocharged 2.7L inline-four. Older V6 wording is incorrect.
Is the current -1 kit interchangeable?A current catalog result is a separate -1 part. Its bill, gains and application gaps are not substituted for this nonsuffix kit; confirm the actual boxed revision and connections.
Which sensors and valves transfer?The original MAF and purge valve both transfer. Reconnect purge line, valve electrical connector, crankcase breather and MAF after installation.
How many original grommets are retained?Three housing grommets including the front metal insert, plus two tube grommets with metal inserts. That is five grommets and three inserts across the assembly.
Which end of the tube goes in first?Install the elbow on the turbo with the large opening straight up. Then insert the tube into the filter while aligning the timing-cover studs, before seating its other end in the elbow.
What is the filter-life reset sequence?Reset to 100% first, then disable using the owner manual procedure. Failure to disable can cause a persistent check-air-filter-system message.
What torque or mileage recheck does the manual give?No numeric torque, battery step or mileage interval is supplied. Restore the original mounting nuts, engine cover, hood-latch screws, ten sight-shield clips and scoop clip, and check that all connections are secure.
Verify aFe 50-70042D. Read all twenty-four pages and figures A-R. With a cool engine, reset Air Filter Life to 100% and then disable it using the vehicle owner manual. Disconnect MAF and crankcase breather, loosen the housing clamp, disconnect the purge-valve electrical connector and purge line, release harnesses and loosen the turbo clamp. Save both engine-cover screws and both tube mounting nuts, then remove the original tube. Release the harness locking tab and ties. Save the two hood-latch lever screws, all ten sight-shield clips, scoop clip and housing nut; move the scoop clear and lift the housing up off its stud toward the vehicle front. Transfer both rear pin grommets and front metal insert/grommet. Transfer MAF using two supplied M4 x 8 mm screws, install the aluminum vent fitting and carefully transfer the original purge valve. Transfer both tube grommets and their metal inserts. Seat the new housing in its bracket, restore housing nut and scoop clip, then sight shield with all ten clips and hood latch with both screws. Install filter and its clamp plus the large housing T-bolt clamp loosely; the auxiliary inlet plug is optional. Put the smaller clamp and elbow onto the TURBO with its large opening pointing straight UP; tighten that small clamp and place the other clamp on the large opening. Install the tube into the FILTER first while aligning both grommet/insert mounts over timing-cover studs, then seat the turbo-coupling end. Align and secure clamps. Restore both tube nuts and engine cover with both screws. Reconnect purge line and electrical connector, crankcase breather and MAF; secure the harness using one supplied upper captive tie and factory scoop-side tie. Some later step references point to earlier removal numbers inconsistently; restore the actual identified components as illustrated. The exact manual gives no battery step, numeric torque or mileage interval.
The current exact 24-page manufacturer manual explicitly naming both nonsuffix part numbers was read in full, including its complete bill and all figures A-R. A current standalone nonsuffix product page was not established: the observed old oiled URL returns 404 and the current catalog result is the separate -1 part. No -1 bill, application exclusions, flow or dyno gain is substituted. This own nonsuffix manual uses 05-01758 elbow and 056/044 tube clamps, retains the original purge valve, and specifies filter-first tube installation; related GM V8 or 4.3L procedures and their mileage intervals are not borrowed. Exact service-filter identity establishes the selected media and dimensions; dry-media photos do not change the oiled selection or vice versa. Exact selected-part named tables support the corrected ranges and missing groups through 2024. Positive later years remain a revision/source hold, not a physical-incompatibility finding. Generic aluminum material and performance claims from secondary listings are not certified. The exact manual states the product is not currently CARB exempt and is unavailable for California purchase or use on a California-registered vehicle.
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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