What does 'file fit' mean for these piston rings?

File fit rings have an end gap that you adjust yourself by filing the ends of the top and second rings. This allows for a precise fit in your specific cylinder bore, which is important for proper sealing and engine performance.

How many cylinders does this set cover?

This set is designed for a single cylinder. You will need to purchase one set for each cylinder in your engine.

Can these rings be shipped to California?

No, this part is not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle Piston Ring Set 3.701in +.005in 1.0mm 1.0mm 2.0mm 3706

Name: Mahle MS 3.701in +.005in 1.0mm 1.0mm 2.0mm File Fit Ring - Single
Brand: Mahle
SKU: mahle-mahle-ms-3-701in-005in-1-0mm-1-0mm-2-0mm-file-fit-ring-single-t14-735171
Price: 32.15 USD
Availability: BackOrder

Mahle MS 3.701in +.005in 1.0mm 1.0mm 2.0mm File Fit Ring - Single

$32.15

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle file fit piston ring set, 3.701in +.005in with 1.0mm, 1.0mm, 2.0mm ring sizes. For single cylinder engine builds.

Key Features

Fits a 3.701 inch bore size with a +.005 inch clearance.
Includes 1.0mm top ring, 1.0mm second ring, and 2.0mm oil ring.
File fit design allows for precise end gap adjustment for custom builds.
Designed for single cylinder applications.
From Mahle, a popular manufacturer of engine components.

⚠️ 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

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Product Details

When you're rebuilding the top end of an engine, getting the piston rings seated just right is critical for sealing and performance. This Mahle file fit ring set is designed for a single cylinder, offering a 3.701 inch bore size with a +.005 inch clearance. The ring sizes are 1.0mm for the top and second rings, and 2.0mm for the oil ring, providing a solid setup for many engine builds.

Mahle is a well-known name in engine components, and these rings are made to be filed to achieve a precise gap for your specific cylinder bore. This file-fit design is common in performance and custom engine builds where exact tolerances are needed. It means you'll need to carefully measure and file the end gap on the top and second rings to match your cylinder's dimensions, ensuring a tight seal under compression.

Remember that this set is for a single cylinder, so be sure to order enough sets for all the cylinders in your engine. Also, please note that this part is not CARB approved and cannot be shipped to California.