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OE Quality
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MahlePart #: S224-3708.020
Mahle S224-3708.020 Engine Piston
44 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Express 2500, Express 3500, Savana 2500, Savana 3500, Sierra 2500 HD, Sierra 2500 HD Classic, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 2500 HD, Silverado 2500 HD Classic, Silverado 3500, Silverado 3500 Classic, and Silverado 3500 HD
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OE-Style Oversized Piston for GM 6.6L Applications
Mahle S224-3708.020 is an oversized engine piston built for select Chevrolet and GMC diesel applications that require a 0.020 in. oversize fit. It uses an aluminum construction with a bowl-style crown and OE-style design details that support ring loading, oil control, and consistent clearances.
Fits 2006-2010 Chevrolet Express 2500, right bank; fits 2006-2010 Chevrolet Express 3500, right bank; fits 2006-2010 Chevrolet Silverado 2500 HD, right bank; fits 2007-2010 Chevrolet Silverado 3500 HD, right bank; fits 2006-2010 GMC Savana 2500, right bank; fits 2006-2010 GMC Savana 3500, right bank; fits 2006-2010 GMC Sierra 2500 HD, right bank; fits 2007-2010 GMC Sierra 3500 HD, right bank.
- Mahle piston, part number S224-3708.020
- Oversized 0.020 in. piston for precision rebuild work
- Aluminium piston construction
- Bowl-type piston head
- Top compression ring thickness: 3.00 mm
- Second compression ring thickness: 2.00 mm
- Oil ring thickness: 3.00 mm
- Piston pin outside diameter: 34.50 mm
- Skirt coated for reduced friction and wear control
- Sold without rings; use ring #42160.020
Detailed OE Replacement Design
Mahle S224-3708.020 is engineered with compensated ring grooves to help maintain proper ring loading and oil control, while its expansion-controlled design supports small fitting clearances for quieter operation and reduced wear. This makes it a practical choice for engine rebuilds where piston-to-cylinder fit and ring control matter. The bowl crown and OE-quality construction align with diesel combustion requirements in Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and related Express and Savana platforms.
Common Repair Uses
- Restores cylinder sealing after bore wear or oversize machining
- Addresses piston slap or noise related to excessive clearance
- Helps correct oil consumption tied to worn piston and ring sealing
- Supports rebuilds requiring a 0.020 in. oversize piston
- Provides a replacement for damaged or scored original pistons
Installation Notes and Tips
Verify cylinder bore size before installation and match the piston to the required oversize specification. This piston is listed without rings, and the correct ring set is 42160.020. Confirm right-bank application, piston pin diameter, and ring groove dimensions during engine assembly. Professional machine work and careful measurement are recommended for Chevrolet Express 2500, Chevrolet Silverado 2500 HD, GMC Savana 3500, and other listed GM diesel applications.
Quality Assurance
Mahle is a major OE piston manufacturer, and this piston follows OE-quality design principles for fit, ring control, and durability in rebuild applications. Part number S224-3708.020 is built to the same type of engineering standards used in original equipment piston production.
| Brand | Mahle |
|---|---|
| Part Number | S224-3708.020 |
| Oversized | Yes |
| Top Compression Ring Thickness | 3.00 |
| Second Compression Ring Thickness | 2.00 |
| Oil Ring Thickness | 3.00 |
| Piston Pin Outside Diameter | 34.50 |
| Piston Head Type | Bowl |
| Piston Material | Aluminium |
This part fits 44 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2010 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2010 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2010 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2010 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2010 | GMC | Savana 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2010 | GMC | Savana 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2010 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2010 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | GMC | Savana 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | GMC | Savana 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2009 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | GMC | Savana 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | GMC | Savana 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2008 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | Chevrolet | Silverado 2500 HD Classic | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | Chevrolet | Silverado 3500 Classic | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | Chevrolet | Silverado 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | GMC | Savana 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | GMC | Savana 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | GMC | Sierra 2500 HD Classic | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | GMC | Sierra 3500 Classic | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2007 | GMC | Sierra 3500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | Chevrolet | Express 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | Chevrolet | Express 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | Chevrolet | Silverado 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | Chevrolet | Silverado 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | GMC | Savana 2500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | GMC | Savana 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | GMC | Sierra 2500 HD | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
| 2006 | GMC | Sierra 3500 | 6.6L | V8 | N/A | Size 0.020in; Piston w/o Rings; Sold as a single; Skirt Coated; Compression Standard; Use Ring # 42160.020; Right Bank |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.