Specifications
- Brand
- Mahle
- Part #
- 4040MS-112
- UPC
- 4040MS-112

Mahle MS 4.035in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings
$183.28
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Mahle MS file fit piston ring set. Includes 1.0mm, 1.0mm, and 2.0mm rings for a 4.035in bore with a +.005in clearance. Universal fit.
Key Features
- This set includes one 1.0mm top ring, one 1.0mm second ring, and one 2.0mm oil ring.
- Designed for a 4.035-inch cylinder bore.
- Features a file-fit design, requiring you to gap the rings to your specific engine's requirements.
- Offers a +.005 inch clearance specification for precise fitting.
- Universal application for custom or performance engine builds.
- Not CARB approved; cannot ship to California.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
This Mahle MS piston ring set includes the necessary rings to service one piston: a 1.0mm top ring, a 1.0mm second ring, and a 2.0mm oil ring. These rings are designed for a 4.035-inch bore and are file-fit, meaning you'll need to gap them to your specific application's needs. This allows for precise control over ring-to-piston clearance, which is crucial for optimal engine performance and sealing.
Mahle is a well-known name in engine components, and this set is built to meet those standards. The file-fit design is common in performance and custom engine builds where exact tolerances are important. You'll need to carefully measure your cylinder bore and piston groove to ensure the correct file-fitting of these rings before installation. This set is intended for universal applications where these specific dimensions are required.
Please note that this ring set is not CARB approved and cannot be shipped to California. Always refer to your engine's service manual for proper installation procedures and specifications.
Specifications
- Brand
- Mahle
- Manufacturer Part #
- 4040MS-112
- UPC
- 4040MS-112
Frequently Asked Questions
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Mahle MS 4.035in +.005in 1.0mm 1.0mm 2.0mm File Fit Rings




