Product Description
Bring back tight sealing and clean oil control on your rebuilt 6.0L with the MAHLE S41940.040 Piston Ring Set (.040). Engineered to OE specs for the 2003–2007 Ford Power Stroke (VT365), this +0.040" oversize ring pack delivers durable compression with fast seating and long service life.
Fitment
- 2003, 2004, 2005, 2006, 2007 Ford Super Duty F-250 / F-350 / F-450 / F-550 — 6.0L Power Stroke (VT365)
- 2003–2005 Ford Excursion — 6.0L Power Stroke
- Also used on select Navistar VT365 / MaxxForce 5 applications (verify oversize before ordering)
Cross-Reference / Alternatives (Mahle on CPP Diesel only)
- Mahle S41940 (STD): S41940 Standard Bore
- Mahle S41940.020 (+.020): S41940.020
- Mahle S41940.030 (+.030): S41940.030
- Mahle 41940.04 (+.040) complete-engine set: 41940.04
- Mahle 224-3503WR.040 Pistons w/ Rings (.040): 224-3503WR.040
What’s Included
- Piston ring set for one cylinder (.040" oversize): top compression, second compression, oil ring assembly
- Order eight (8) sets for a complete engine
FAQ
Is this sold per cylinder or per engine?
This S-part number is per cylinder. Order 8 sets for a full V8.
Will .040" rings fit a stock bore?
No. .040" requires a properly bored/honed block to +0.040" with the correct surface finish and end-gap per Mahle specs.
What material is the top ring?
Plasma-moly faced top ring with OE-grade materials for fast seating and long life.
Do I still need to check end gap?
Yes—always verify and file-fit to Mahle’s specification for your final bore and intended use.
Specifications for Mahle S41940.040
| Attribute | Value |
|---|---|
| Brand | Mahle |
| Part Number | S41940.040 |
| UPC | 027067859938 |
| GTIN | 027067859938 |
| Engine Compatibility | 2003–2007 Ford 6.0L Power Stroke (VT365) / select Navistar VT365 |
| Oversize | +0.040" (approx. 3.780" bore) |
| Set Services | 1 cylinder (order 8 for full engine) |
| Shipping | Calculated at Checkout |
| Prop 65 | Not specified by manufacturer. See www.P65Warnings.ca.gov. |
