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MAHLE 9302399 Oil Ring Support Rail 3.810-3.840 Bore 3mm

Manufacturer

Picture for manufacturer MAHLE

Part Number

9302399
6 reviews
Sale Price

$5.91

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The MAHLE 9302399 is a precision-engineered 3mm oil ring support rail designed for engine bores ranging from 3.810 to 3.840 inches in diameter. This critical piston ring component is used in high-performance engine builds to enhance oil control and overall engine efficiency.

Key Features:

  • Fits bore sizes from 3.810 to 3.840 inches
  • 3mm support rail thickness for optimal oil ring support
  • Prevents piston rotation within the cylinder
  • Improves cylinder seal and reduces friction
  • Ensures proper gas pressure delivery to oil rings at high RPM
  • Manufactured by MAHLE Motorsports to exacting quality standards

Oil ring support rails are installed beneath the oil control ring assembly to provide added stability and prevent ring rotation. This component is essential for performance applications where maintaining proper oil control and minimizing friction are critical to engine longevity and power output. MAHLE pioneered advanced piston ring simulation and computer development tools to engineer components that maximize performance while minimizing friction losses.

Application Note: This support rail is designed for use with MAHLE's low-tension oil control ring systems. Proper installation requires careful attention to bore chamfering and the use of appropriate tapered ring compressors for best results.

Products specifications

Prop 65 Yes/No

Yes

Prop 65 (C, R, or CR)

CR

Prop 65 - Short Label

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

Great prices. Fast Shipping. I would definitely do business again.

I ordered online with autoplicity via google checkout. It was easy and a real good price compared to other sites. The communication was great every step of the way. Order confirmation, order tracking number and shipping number. Super fast shipping for a heavy item (springs)and was in perfect condition. I Will shop with them again.

Hands down the best price on the Magnaflow catback I have seen by more than 20%. They were able to work out the ship-from-manufacturer tracking after a quick phone call. Will definately be recommending these guys to others.

Great prices on the products I want. Quick shipping.

Quick and easy ordering experience!

awesome price and super fast shipping. I will use again. Thanks

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