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MahlePart #: 42145CP

Mahle 42145CP Engine Piston Ring Set
⚙️ 20 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$136.64Free Shipping
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*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, Hummer, and Isuzu, Canyon, Colorado, H3, H3T, and i-370
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Mahle 42145CP Engine Piston Ring Set
| Brand | Mahle |
| Part Number | 42145CP |
| Bore Diameter (in) | 3.7598 |
| Item Grade | Premium |
| Oil Ring Assembly Material | Stainless steel |
| Oil Ring Assembly Thickness (Axial Height) | 0.0984 in |
| Piston Ring Face Coating | Plasma-moly |
| Piston Ring Oversize | Standard |
| Second Ring Material | Cast iron |
| Second Ring Thickness (Axial Height) | 0.0586 in |
| Size | Shallow groove |
| Top Ring Material | Carbon steel |
| Top Ring Thickness (Axial Height) | 0.0468 in |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Chevrolet | Colorado | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2012 | GMC | Canyon | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2011 | Chevrolet | Colorado | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2011 | GMC | Canyon | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2010 | Chevrolet | Colorado | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2010 | GMC | Canyon | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2010 | Hummer | H3 | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2010 | Hummer | H3T | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2009 | Chevrolet | Colorado | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2009 | GMC | Canyon | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2009 | Hummer | H3 | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2009 | Hummer | H3T | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2008 | Chevrolet | Colorado | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2008 | GMC | Canyon | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2008 | Hummer | H3 | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2008 | Isuzu | i-370 | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2007 | Chevrolet | Colorado | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2007 | GMC | Canyon | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2007 | Hummer | H3 | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
| 2007 | Isuzu | i-370 | 3.7L | L5 | N/A | Size Standard; Material Grade Premium; Material UCR-Carbon Steel; LCR-Cast Iron; OCR-Stainless Steel; Facing UCR-Plasma-Moly; OCR-Chrome; Axial Height UCR-1.2mm; LCR-1.5mm; OCR-2.5mm; Ring Type UCR:RF-13PF; LCR:THM-10; OCR: CP-20; Shallow Groove |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
2C5215
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.