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PPE 338052410 – 6.7 Powerstroke / Super Duty Dana M315 Heavy-Duty Cast Aluminum Rear Differential Cover (Brushed)
Upgrade your 2023–2026 Ford Super Duty F-450/F-550/F-600 (Dana M315 rear axle) with the PPE Heavy-Duty Cast Aluminum Rear Differential Cover in brushed finish. This precision-engineered cover far outperforms the factory stamped-steel cover by delivering superior strength, increased fluid capacity, better cooling, and improved gear lubrication under heavy towing, hauling, or demanding conditions.
Cast from high-grade A356.0-T6 heat-treated aluminum alloy using permanent steel molds, it offers excellent thermal conductivity, dimensional accuracy, and toughness. It increases oil capacity by 0.8 quart for greater thermal capacity. Deep half-inch external cooling fins maximize heat dissipation, lower differential fluid temperatures, and add impact resistance. Precision-placed internal windage scrapers control fluid movement around the gears, reducing excessive churning, heat generation, aeration, and parasitic power loss while promoting better lubrication and more efficient power transfer.
The external fins and internal scrapers form an ultra-strong cross-bracing structure that improves load distribution. Cast-in gussets provide extra support to the differential housing flange and increase overall rigidity. 304 stainless steel fill and drain plugs feature high-temperature-rated neodymium magnets (to capture ferrous particles) and Viton O-rings for reliable sealing. The fill plug is positioned at the factory fluid level.
Key Features
- Premium A356.0-T6 heat-treated cast aluminum construction
- Increases fluid capacity by 0.8 quart
- Half-inch external cooling fins for superior heat dissipation and strength
- Internal windage scrapers reduce churning, heat, and power loss
- Cross-bracing structure + cast-in gussets for rigidity and housing support
- Magnetic 304 stainless steel service plugs with Viton O-rings
- Brushed finish for a clean, durable appearance
- Direct-fit replacement (OEM reference: PC3Z4033E / PC3Z4033A)
- Limited lifetime warranty
Fitment 2023–2026 Ford Super Duty F-450 / F-550 / F-600 with Dana M315 rear axle (commonly paired with 6.7L Power Stroke and other available engines).
Important note: Dana M275, M300, and M315 covers look similar (all 14-bolt). Verify your axle type and ring gear before ordering.
This is a bolt-on upgrade that helps keep differential fluid cooler and cleaner, extends gear and bearing life, and adds meaningful strength and cooling capacity for serious work or towing use.
PPE 338052410 – 6.7 Powerstroke / Super Duty Dana M315 Heavy-Duty Cast Aluminum Rear Differential Cover (Brushed)
Upgrade your 2023–2026 Ford Super Duty F-450/F-550/F-600 (Dana M315 rear axle) with the PPE Heavy-Duty Cast Aluminum Rear Differential Cover in brushed finish. This precision-engineered cover far outperforms the factory stamped-steel cover by delivering superior strength, increased fluid capacity, better cooling, and improved gear lubrication under heavy towing, hauling, or demanding conditions.
Cast from high-grade A356.0-T6 heat-treated aluminum alloy using permanent steel molds, it offers excellent thermal conductivity, dimensional accuracy, and toughness. It increases oil capacity by 0.8 quart for greater thermal capacity. Deep half-inch external cooling fins maximize heat dissipation, lower differential fluid temperatures, and add impact resistance. Precision-placed internal windage scrapers control fluid movement around the gears, reducing excessive churning, heat generation, aeration, and parasitic power loss while promoting better lubrication and more efficient power transfer.
The external fins and internal scrapers form an ultra-strong cross-bracin[...]
PPE 338052410 – 6.7 Powerstroke / Super Duty Dana M315 Heavy-Duty Cast Aluminum Rear Differential Cover (Brushed)
Upgrade your 2023–2026 Ford Super Duty F-450/F-550/F-600 (Dana M315 rear axle) with the PPE Heavy-Duty Cast Aluminum Rear Differential Cover in brushed finish. This precision-engineered cover far outperforms the factory stamped-steel cover by delivering superior strength, increased fluid capacity, better cooling, and improved gear lubrication under heavy towing, hauling, or demanding conditions.
Cast from high-grade A356.0-T6 heat-treated aluminum alloy using permanent steel molds, it offers excellent thermal conductivity, dimensional accuracy, and toughness. It increases oil capacity by 0.8 quart for greater thermal capacity. Deep half-inch external cooling fins maximize heat dissipation, lower differential fluid temperatures, and add impact resistance. Precision-placed internal windage scrapers control fluid movement around the gears, reducing excessive churning, heat generation, aeration, and parasitic power loss while promoting better lubrication and more efficient power transfer.
The external fins and internal scrapers form an ultra-strong cross-bracing structure that improves load distribution. Cast-in gussets provide extra support to the differential housing flange and increase overall rigidity. 304 stainless steel fill and drain plugs feature high-temperature-rated neodymium magnets (to capture ferrous particles) and Viton O-rings for reliable sealing. The fill plug is positioned at the factory fluid level.
Key Features
- Premium A356.0-T6 heat-treated cast aluminum construction
- Increases fluid capacity by 0.8 quart
- Half-inch external cooling fins for superior heat dissipation and strength
- Internal windage scrapers reduce churning, heat, and power loss
- Cross-bracing structure + cast-in gussets for rigidity and housing support
- Magnetic 304 stainless steel service plugs with Viton O-rings
- Brushed finish for a clean, durable appearance
- Direct-fit replacement (OEM reference: PC3Z4033E / PC3Z4033A)
- Limited lifetime warranty
Fitment 2023–2026 Ford Super Duty F-450 / F-550 / F-600 with Dana M315 rear axle (commonly paired with 6.7L Power Stroke and other available engines).
Important note: Dana M275, M300, and M315 covers look similar (all 14-bolt). Verify your axle type and ring gear before ordering.
This is a bolt-on upgrade that helps keep differential fluid cooler and cleaner, extends gear and bearing life, and adds meaningful strength and cooling capacity for serious work or towing use.