aFe ProGuard D2 transmission fluid filter for GM 6.6L Duramax diesel trucks (LB7, LLY, LBZ, LMM, LML). It exceeds OEM filtration efficiency to protect the shift control valves and reduce the risk of secondary transmission damage while maintaining maximum fluid flow. A direct replacement for the factory filter.
Specifications
| Type | Transmission fluid filter, deep pan (ProGuard D2) |
| Transmission | Allison automatic |
| Engine | 6.6L Duramax LB7, LLY, LBZ, LMM, LML |
| Part Number | 44-TF006 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2015 | Chevrolet | Silverado 2500 HD | 6.6L Duramax |
| 2001-2015 | Chevrolet | Silverado 3500 / 3500 HD | 6.6L Duramax |
| 2001-2015 | GMC | Sierra 2500 HD | 6.6L Duramax |
| 2001-2015 | GMC | Sierra 3500 / 3500 HD | 6.6L Duramax |
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
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