What is the PVD UCR coating and why is it important?

PVD UCR stands for Physical Vapor Deposition Ultra-Carbon-Resistant. This advanced coating is applied to the piston rings to significantly improve their wear resistance and reduce friction. This is crucial in high-performance engines where extreme heat and pressure can quickly degrade standard ring materials.

What does 'NHRA Plain Ring Set' mean?

NHRA Plain Ring Set indicates that these rings meet the specifications for use in National Hot Rod Association sanctioned racing. 'Plain' refers to the specific design and coating type, optimized for performance and durability in drag racing and similar motorsports applications.

What is included in this bulk package?

This package contains 48 complete piston ring sets. Each set is designed for a 4.1875 inch bore and includes all the necessary rings for one piston, suitable for multiple engine builds or professional shop use.

Mahle OE Piston Rings 3011273B - NHRA Plain Ring Set

Name: Mahle Rings Perf 9254 Steel PVD UCR 4.1875in x 1/16in .175in RW NHRA Plain Ring Set (48 Qty Bulk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-9254-steel-pvd-ucr-4-1875in-x-1-16in-175in-rw-nhra-pla-t14-48732
Price: 961.15 USD
Availability: BackOrder

Mahle Rings Perf 9254 Steel PVD UCR 4.1875in x 1/16in .175in RW NHRA Plain Ring Set (48 Qty Bulk)

$961.15

On Backorder

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

Mahle OE NHRA Plain Ring Set. Steel PVD UCR rings for 4.1875in bore, 48 Qty Bulk.

Key Features

Fits 4.1875 inch bore size.
Features a 1/16 inch top ring thickness.
Includes a 0.175 inch oil ring groove.
Constructed from steel with a PVD UCR coating for improved durability and performance.
Designed for NHRA applications and high-performance engines.
Comes in a bulk quantity of 48 ring sets.

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Product Details

Mahle is well-known for making solid engine components, and this bulk set of 48 NHRA Plain Ring Sets is no exception. If you're building a high-performance engine for drag racing or similar applications, these rings are designed to handle the demands of serious power. They feature a steel construction with a PVD UCR coating, which helps with durability and performance under extreme conditions.

Each ring in this set measures 4.1875 inches in bore size, with a 1/16 inch top ring thickness and a 0.175 inch oil ring groove. The PVD UCR coating is a notable feature, offering improved wear resistance and reduced friction compared to standard coatings. This means your pistons will move more freely, and the rings will hold up better to the heat and pressure generated by a powerful engine. Having 48 sets means you'll have plenty on hand for multiple builds or for a shop that frequently works on performance engines.

It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures to ensure optimal performance and longevity for your engine build.