aFe Momentum HD cold air intake system with a one-piece sealed XLPE housing that uses the factory air scoop inlets, a clear sight window and an optional auxiliary inlet. A dyno-tuned XLPE intake tube feeds a 9 in tall radial flow Pro DRY S filter on a 5-1/2 in flange with an inverted top. The Pro DRY S filter uses three layers of oil-free synthetic media and is washable and reusable. It flows 585 CFM at 7 in H2O, 56% more than the factory intake, and is rated at up to 15 hp and 27 lb-ft. The filter can be removed for service by taking out only the intake tube.
Specifications
| Type | Cold Air Intake System |
| Series | Momentum HD |
| Filter Media | Pro DRY S, three-layer oil-free synthetic, washable and reusable |
| Filter | 9 in tall, 360 degree radial flow, 5-1/2 in flange, inverted top |
| Housing | One-piece sealed XLPE (cross-linked polyethylene) with clear sight window, factory air scoop inlets and optional auxiliary inlet |
| Intake Tube | Dyno-tuned XLPE, heat-soak resistant |
| Gains | +15 hp, +27 lb-ft; 585 CFM @ 7 in H2O, 56% more than the factory intake |
| Engine | L6 3.0L turbo diesel (LM2 / LZ0) |
| Fitment Notes | 3.0L Duramax diesel only; reset and disable the Air Filter Life System at install |
| What's in the Box |
|
| Replacement Filter | 21-91147 (Pro DRY S) |
| Filter Color | Gray |
| Hardware Included | Yes |
| Air Flow Gain | 56 Percent |
| Pre-Filter | 28-10053 |
| Tune Required | No |
| Warranty | 2 years on components (original owner) |
| Part Number | 50-70121D |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2024 | Cadillac | Escalade | Luxury |
| 2021-2024 | Cadillac | Escalade | Premium Luxury |
| 2021-2024 | Cadillac | Escalade | Premium Luxury Platinum |
| 2021-2024 | Cadillac | Escalade | Sport |
| 2021-2024 | Cadillac | Escalade | Sport Platinum |
| 2021-2024 | Cadillac | Escalade ESV | Luxury |
| 2021-2024 | Cadillac | Escalade ESV | Premium Luxury |
| 2021-2024 | Cadillac | Escalade ESV | Premium Luxury Platinum |
| 2021-2024 | Cadillac | Escalade ESV | Sport |
| 2021-2024 | Cadillac | Escalade ESV | Sport Platinum |
| 2022-2026 | Chevrolet | Silverado 1500 | Custom Trail Boss |
| 2021-2026 | Chevrolet | Silverado 1500 | High Country |
| 2021-2026 | Chevrolet | Silverado 1500 | LT |
| 2022-2026 | Chevrolet | Silverado 1500 | LT Trail Boss |
| 2021-2026 | Chevrolet | Silverado 1500 | LTZ |
| 2021-2026 | Chevrolet | Silverado 1500 | RST |
| 2024-2026 | Chevrolet | Silverado 1500 | ZR2 |
| 2022 | Chevrolet | Silverado 1500 LTD | High Country |
| 2022 | Chevrolet | Silverado 1500 LTD | LT |
| 2022 | Chevrolet | Silverado 1500 LTD | LT Trail Boss |
| 2022 | Chevrolet | Silverado 1500 LTD | LTZ |
| 2022 | Chevrolet | Silverado 1500 LTD | RST |
| 2021-2026 | Chevrolet | Suburban | High Country |
| 2021-2024 | Chevrolet | Suburban | LS |
| 2021-2026 | Chevrolet | Suburban | LT |
| 2021-2026 | Chevrolet | Suburban | Premier |
| 2021-2026 | Chevrolet | Suburban | RST |
| 2025-2026 | Chevrolet | Suburban | Z71 |
| 2021-2026 | Chevrolet | Tahoe | High Country |
| 2021-2024 | Chevrolet | Tahoe | LS |
| 2021-2026 | Chevrolet | Tahoe | LT |
| 2021-2026 | Chevrolet | Tahoe | Premier |
| 2021-2026 | Chevrolet | Tahoe | RST |
| 2025-2026 | Chevrolet | Tahoe | Z71 |
| 2020-2026 | GMC | Sierra 1500 | AT4 |
| 2022, 2024-2026 | GMC | Sierra 1500 | AT4X |
| 2020-2026 | GMC | Sierra 1500 | Denali |
| 2022-2026 | GMC | Sierra 1500 | Denali Ultimate |
| 2020-2026 | GMC | Sierra 1500 | Elevation |
| 2020-2026 | GMC | Sierra 1500 | SLE |
| 2020-2026 | GMC | Sierra 1500 | SLT |
| 2022 | GMC | Sierra 1500 Limited | AT4 |
| 2022 | GMC | Sierra 1500 Limited | Denali |
| 2022 | GMC | Sierra 1500 Limited | Elevation |
| 2022 | GMC | Sierra 1500 Limited | SLE |
| 2022 | GMC | Sierra 1500 Limited | SLT |
| 2025-2026 | GMC | Yukon | AT4 |
| 2025-2026 | GMC | Yukon | AT4 Ultimate |
| 2021-2026 | GMC | Yukon | Denali |
| 2023-2026 | GMC | Yukon | Denali Ultimate |
| 2025-2026 | GMC | Yukon | Elevation |
| 2021-2024 | GMC | Yukon | SLE |
| 2021-2024 | GMC | Yukon | SLT |
| 2025-2026 | GMC | Yukon XL | AT4 |
| 2025-2026 | GMC | Yukon XL | AT4 Ultimate |
| 2021-2026 | GMC | Yukon XL | Denali |
| 2023-2026 | GMC | Yukon XL | Denali Ultimate |
| 2025-2026 | GMC | Yukon XL | Elevation |
| 2021-2024 | GMC | Yukon XL | SLE |
| 2021-2024 | GMC | Yukon XL | SLT |
Documents: Installation Instructions (PDF) | Airflow Chart | Dyno Chart | Filter Cleaning Instructions
Does it fit gas V8 trucks?
- No. This kit fits the 3.0L inline six turbo diesel (LM2 / LZ0) only.
What comes in the box?
- The air filter, intake tube, housing, silicone bellow coupling, clamps, a silicone plug for the auxiliary inlet, two M4 screws and two push-mount cable ties.
Will I get an air filter warning on the dash?
- Reset the Air Filter Life System to 100% and then disable it during install, or a 'Check Engine Air Filter System' message may stay on.
How do I service the filter?
- The Pro DRY S filter is washable and reusable and comes out by removing only the intake tube. The replacement filter is part number 21-91147.
Is there a Pro 10R version?
- Yes, the Pro 10R version of the same Momentum HD kit is part number 50-70121T.
Shipping
- Orders placed before 3 PM EST typically ship the same business day. Larger items ship within 1 to 3 business days.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Special order items follow a lead time we confirm with you individually before the order is committed.
- Backordered items ship as soon as stock lands. Lead times are manufacturer estimates and can change. Contact us for current ETAs.
- Need to cancel? Email us right away. Cancellations are not guaranteed once an order is in process. In-stock orders cancel free before they ship; a 6% fee applies only to confirmed backorders and special orders.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30 days from delivery to request and ship back a return on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee on the item price before tax and shipping. Shipping is not refunded in either direction. All waived if the item is defective or we made the error.
- Fitment guaranteed: select your vehicle above, or confirm fitment with us in writing before you order. If the part shows as a fit and it is wrong, the return is on us, even after installation. Otherwise, installed or used parts cannot be returned.
- Final sale: special orders, coilovers, electronics, engine internals, turbochargers, superchargers and turbo kits, unless defective or we sent the wrong item.
- Product images may be representative. The SKU and specifications in the listing are what ships.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Returns & Refunds · Warranty






