Pacific Performance Engineering (PPE) Heavy-Duty Cast Aluminum Rear Differential Cover, Dana M315 [338052400]
Fits 2023-2026 6.7L Power Stroke V8 (enhanced)
![Pacific Performance Engineering (PPE) Heavy-Duty Cast Aluminum Rear Differential Cover, Dana M315 [338052400] for 2023-2026 Ford F-450 Super Duty (6.7L Power Stroke V8 (enhanced))](https://ppepower.com/cdn/shop/files/Differential-Cover-Rear_338052400_01.jpg?v=1780013381&width=800)
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Price tracked 10 times since Jul 26, 2026 across the stores we check daily: low $329.99, high $329.99, currently $329.99.
A finned cast aluminum cover that replaces the stamped steel factory cover on the rear differential. It holds about 0.8 quart more gear oil and sheds heat better, with internal scrapers that keep oil off the ring gear where it just churns.
why this one — This is the one that actually fits, and on an F-450 that is the whole story. The 2023 and newer F-450 runs a Dana M315 rear axle, not the axle under an F-250 or F-350, so a generic Super Duty diff cover will not bolt on no matter how many Ford trucks the box lists. At 329.99 dollars it is priced like the rest of the PPE range. Check availability first: PPE lists some finishes as temporarily out of stock, and it comes in raw, brushed and black.
A power claim does not apply to a differential cover.
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.