Product Description
Refresh compression and oil control on your 6.7L with the MAHLE S42168.040 Piston Ring Set (.040) for 2011–2017 Ford Power Stroke. This OE-quality single-cylinder ring pack is sized for 0.040" (1.00 mm) overbore pistons and uses premium materials and coatings to deliver factory-level sealing, durability, and long service life. Sold per cylinder—order 8 for a complete engine.
Fitment
- 2011–2017 Ford F-250 / F-350 / F-450 / F-550 Super Duty with 6.7L Power Stroke (all trims) — requires 0.040" over pistons
Cross-Reference / Alternatives (Mahle only)
- Mahle S42168 (STD): S42168 (STD)
- Mahle S42168.020 (.020): S42168.020 (.020)
What’s Included
- One complete ring pack for a single cylinder (0.040" over). Order quantity 8 for full V8 coverage.
Why CPP Diesel
- Diesel-focused catalog and tech help
- Curated Mahle coverage for Ford 6.7L builds
FAQ
Is this a full engine set?
No. It’s a single-cylinder ring set. You’ll need eight (8) for a complete engine.
Will .040" work with my block?
Only if your block is bored/honed for 0.040" (1.00 mm) oversize pistons. Verify piston size before ordering.
Do I need to check ring end gap?
Yes—always check and set end gap to Mahle/Ford specs during assembly for best results.
Specifications for Mahle S42168.040
| Attribute | Value |
|---|---|
| Brand | Mahle |
| Part Number | S42168.040 |
| UPC | 027067875976 |
| GTIN | 027067875976 |
| Engine Compatibility | 2011–2017 Ford 6.7L Power Stroke (V8) |
| Size | .040" oversize (1.00 mm) |
| Sold As | Single cylinder set (order qty 8 for full engine) |
| Shipping | Calculated at checkout |
| Prop 65 | Not specified by manufacturer. See www.P65Warnings.ca.gov. |
