Engine Piston Ring Set - .040 Oversize for 1991-2000 Chevrolet/GMC 7.4L (C2500, C3500, K2500, K3500) 4718040
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The Mahle Engine Piston Ring Set - Standard Size (part number 51617) is a direct-fit replacement for 1991-2000 Chevrolet and GMC vehicles with 7.4L engines.
Specifications:
| Item Grade | Standard |
| Second Ring Thickness (Axial Height) | 0.078 in |
| Oil Ring Assembly Thickness (Axial Height) | 0.1875 in |
| Piston Ring Oversize | Standard |
| Top Ring Thickness (Axial Height) | 0.0783 in |
| Bore Diameter (in) | 4.250 |
| Top Ring Material | Cast Iron |
| Oil Ring Assembly Material | Stainless Steel |
| Size | Shallow Groove |
| Second Ring Material | Cast Iron |
Fits: 1991-2000 Chevrolet and GMC models including C2500, C3500, K2500, K3500, P30, C2500 Suburban, K2500 Suburban, G30 and more - 7.4L engines. Confirm your year, make, model, and engine before ordering.
Fitment Notes: Size Standard; Material Grade Standard; Material UCR-Cast Iron; LCR-Cast Iron; OCR-Stainless Steel; Facing OCR-Chrome; Axial Height UCR-5/64in; LCR-5/64in; OCR-3/16in; Ring Type UCR:RF-10; LCR:RBT-10; OCR: CP-20; Shallow Groove
Interchanges With: Hastings Piston Rings 4718