Product Description
MAHLE 224-3409WR.020 piston set with rings is the .020" oversize, .010" reduced-compression-height option for the 1994–2003 Ford 7.3L Power Stroke. Built to OE specs with non-coated skirts and a matched ring pack, this set delivers reliable sealing for stock rebuilds, tow/haul, and work-truck duty.
Fitment
- 1994–2003 Ford 7.3L Power Stroke (F-250/F-350/F-450/F-550, many E-Series, 2000–2005 Excursion)
- Oversize: .020" over (requires machine shop overbore/hone)
- Compression height: .010" reduced (OE-style durability under load)
- Skirts: Non-coated
- Sold as a complete set of 8 with rings, pins & retainers
Cross-Reference / Alternatives (MAHLE on CPP Diesel only)
- Reduced compression – standard bore: MAHLE 224-3409WR (STD)
- Reduced compression – .010 over: MAHLE 224-3409WR.010
- Reduced compression – .030 over: MAHLE 224-3409WR.030
- Reduced compression – .040 over: MAHLE 224-3409WR.040
- Standard-compression family (7.3L): MAHLE 224-3163WR (STD) • 224-3163WR.020 • 224-3163WR.030 • 224-3163WR.040
Specifications for Mahle 224-3409WR.020
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | 224-3409WR.020 |
| UPC | 027067913388 |
| GTIN | 00027067913388 |
| Engine | Ford 7.3L Power Stroke (T444E) |
| Bore Size | .020" over |
| Compression Height | .010" reduced |
| Skirt | Non-coated |
| Includes | (8) Pistons with rings, pins & retainers (per MAHLE kit) |
| Shipping | Free Shipping from CPP Diesel; ground service unless upgraded at checkout |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more. |
FAQ
Is the price for one piston or a full set?
CPP Diesel sells this as a complete set of eight (8) pistons with rings.
What does “.010" reduced compression height” do?
It shortens the compression height by .010" to better manage cylinder pressure and deck/gasket variations in work and towing builds while maintaining OE reliability.
Do I need machine work for .020" over?
Yes. Have a qualified machine shop bore/hone the block to .020" and set piston-to-wall clearance to MAHLE spec.
Are the skirts coated?
No—this configuration uses a non-coated OE-style skirt.
