When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Upgrade your Allison 1000 transmission oil filtration with this MDDP DACO-01-19 CAT Filter Conversion Kit, designed specifically for Duramax applications. This conversion kit replaces the standard OEM filter with a heavy-duty CAT 077-3492 hydraulic/transmission oil filter, providing superior filtration, increased dirt holding capacity, and improved flow efficiency. Made in the USA with a precision-machined metal adapter for a secure, leak-free fit.
- Fits Allison 1000 transmissions in Duramax applications- Converts filter housing to accept the CAT 077-3492 hydraulic/transmission oil filter- Heavy-duty, overbuilt metal adapter designed for tough environments- Easy installation with lower placement on the vehicle- Includes MDDP adapter, adapter O-ring, CAT 077-3492 filter, and detailed instructions- Includes gasket for a proper seal- Not a universal fitment; vehicle-specific application- Not a vintage part
Filtration Performance:- During third-party lab testing, 30-micron particulates were introduced at 1.3 GPM upstream of the filter- The OEM Allison filter allowed 55 percent of particles above 30 microns through after 39 minutes- The CAT 077-3492 filter allowed 0 particles above 30 microns through after 77.5 minutes
Dirt Holding Capacity:- OEM Allison filter held 4.1 grams of grit before bypass- CAT 077-3492 filter held 17.7 grams of grit before bypass- 430 percent greater holding capacity over the OEM filter
Flow Performance:- Tested at 1.3 GPM and 35 kPa- CAT filter with adapter flowed 188 percent more efficiently than the OEM Allison filter
Seal and Leak Performance:- Hydrostatic burst test performed at -30 degrees Celsius after 5 hours of cold soak- CAT filter and adapter held to 258 PSI- OEM Allison filter held to 246 PSI- Adapter uses a durable, resilient O-ring for a strong seal to the transmission