Details
Product Information
aFe Momentum GT cold air intake system with a one-piece sealed housing made from heat-resistant cross-linked polyethylene (XLPE). The housing has a built-in inlet scoop, an optional auxiliary air inlet and a large clear sight window so you can check the filter without taking anything apart, and the filter-to-housing interface lets the filter come out for service by removing only the intake tube. The 360 degree radial flow filter uses Pro DRY S three-layer oil-free synthetic media with an inverted top for more surface area, and the dyno-tuned XLPE intake tube is sealed with a bellows coupling and stainless clamps. It flows 550 CFM at 7 in H2O, 8% more than the factory intake.
Specifications
| Type | Cold Air Intake System |
| Series | Momentum GT |
| Filter Media | Pro DRY S, three-layer oil-free synthetic, washable and reusable |
| Housing | One-piece sealed XLPE housing with clear sight window, built-in inlet scoop and auxiliary air inlet |
| Intake Tube | Dyno-tuned XLPE intake tube |
| Gains | 550 CFM @ 7 in H2O, 8% more than the factory intake |
| What's in the Box |
|
| Fitment Notes | 7.3L gas V8 only |
| Replacement Filter | 21-91061 (Pro DRY S) |
| Engine | V8-7.3L |
| Filter Color | Gray |
| Hardware Included | Yes |
| Air Flow Gain | 8 Percent |
| Pre-Filter | 28-10283 |
| Air Box Type | Closed |
| Tune Required | No |
| Warranty | 2 years on components (original owner) |
| Part Number | 50-70129D |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2023-2026 | Ford | F-250 Super Duty | King Ranch |
| 2023-2026 | Ford | F-250 Super Duty | Lariat |
| 2023-2026 | Ford | F-250 Super Duty | Platinum |
| 2023-2026 | Ford | F-250 Super Duty | XL |
| 2023-2026 | Ford | F-250 Super Duty | XLT |
| 2023-2026 | Ford | F-350 Super Duty | King Ranch |
| 2023-2026 | Ford | F-350 Super Duty | Lariat |
| 2023-2026 | Ford | F-350 Super Duty | Platinum |
| 2023-2026 | Ford | F-350 Super Duty | XL |
| 2023-2026 | Ford | F-350 Super Duty | XLT |
Documents: Installation Instructions (PDF) | Airflow Chart | Filter Cleaning Instructions
Will it fit my 6.7L Power Stroke diesel?
- No. It is for the 2023-2026 F-250 and F-350 Super Duty with the 7.3L gas V8 only.
What comes in the box?
- The filter (21-91061), the intake tube, the sealed housing, a silicone bellows coupler, clamps including a T-bolt clamp, trim seal, a silicone plug, Torx screws and retainer clips.
How do I service the filter?
- The Pro DRY S filter is washable and reusable and needs no oil; cleaning instructions are linked under Documents. The replacement filter is part number 21-91061.
Is there another filter option?
- Yes. The same kit is 50-70129R with a Pro 5R oiled filter and 50-70129D with a Pro DRY S oil-free filter.
Shipping
- In stock orders typically 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






