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2020-2026 GM 6.6L Duramax MicroPure XR® Engine Oil Filter
OEM P/N REFERENCE: PF26, FL-820-S, MO-899
1 YEAR LIMITED WARRANTY
30-DAY RETURNS
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Premium High-Efficiency Engine Oil Filter
The oil filter is your engine’s first line of defense against contaminants that degrade oil performance and reduce oil lifespan. Poor filter performance and the presence of oil contaminants can lead to premature wear and potential failure of engine internals.
The PPE Premium High-Efficiency Engine Oil Filter 114000750 combines fine-particle filtration with low flow restriction for the GM 6.6L Duramax. The specially engineered ultra-fine multi-layer MicroPure XR® media features a 5-micron nominal rating and 522 square inches of filtration area, which is 100% larger than the OEM.
The PPE filter includes a high-temp-rated neodymium magnet that attracts ferrous debris, including fine particles that may pass through the filter media. By capturing and retaining magnetic contaminants alongside the filter media’s mechanical filtration, the magnet adds another layer of protection and contributes to the filter’s overall dirt-holding capacity.
A heavy-duty coil spring ensures a secure seal between the filter media and the base plate, eliminating dirty oil blow-by and maximizing filtration performance. The PPE filter also features a heat-resistant silicone anti-drainback valve, retaining oil in the filter after the engine is turned off for protection against dry starts.
In contrast to competitors’ unsealed bypass valve, the built-in bypass valve in the PPE filter incorporates a steel-NBR poppet and a precision coil spring to ensure a proper seal and consistent performance.
Built for demanding conditions, the PPE filter combines a high-strength steel base plate with increased thread engagement, large oil passages, and a durable metal center tube for strong media support. A spiral bead keeps the pleats evenly spaced, while TorqSTOP™ Technology helps prevent over-tightening and reinforces the gasket. The filter is rated to withstand burst pressures up to 450 PSI.
Note: 114002700 Fuel Coolant Pump Relocation Bracket Kit is required for the install of this deep filter.

Finer filtration doesn’t have to mean more restriction. Pressure drop depends on the media’s material and construction, its total surface area, and how oil flows through it. The PPE 114000750 uses laminated fiberglass media, formed differently from conventional cellulose or paper media, with a 522 square inches of filtration area. That combination is designed to capture fine particles while providing ample surface for oil flow. In the accompanying comparison, the PPE filter showed lower pressure drop than both the PF26 and PF63 at every tested flow rate (graph below).
Comparing Pressure Drop Across PPE 114000750, PF26, and PF63
Measured filter pressure drop. Lower values indicate less resistance to flow under the test conditions.
Testing was performed using a fluid with kinematic viscosity of 15 cSt at the test temperature, approximately matching the viscosity of SAE 15W-40 engine oil at 212°F.
Why lower pressure drop matters
Pressure drop represents resistance the oil pump must overcome to move oil through the filter. At the same oil flow and downstream pressure, a less restrictive filter reduces the required pump outlet pressure and the hydraulic power consumed overcoming filter resistance. During normal operation, this can reduce pump load.
During cold starts, thicker oil increases resistance throughout the lubrication system. If the pump’s pressure-relief valve is open, lower filter restriction can allow more of the pump’s output to reach the engine instead of recirculating through the relief circuit. This can help support oil delivery to critical components.







