My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

MAHLE 9301947 Piston Support Rail 2mm Width 3.947-3.989 Bore Range

Part of: MAHLE Support Rail

Other options in this family: MAHLE 9290057 MAHLE 9299227 MAHLE 9298684 MAHLE 9290032 MAHLE 9299225

Manufacturer

Picture for manufacturer MAHLE

Part Number

9301947
6 reviews
Sale Price

$5.91

In Stock (10+)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The MAHLE 9301947 is a precision-engineered piston support rail designed for professional engine building and repair applications. This 2mm width support rail is specifically sized for cylinders with bore diameters ranging from 3.947 to 3.989 inches, providing critical support for piston ring installation and proper ring seating.

Key Specifications:

  • Bore range compatibility: 3.947 to 3.989 inches
  • Rail width: 2mm for precise piston ring support
  • Manufactured by MAHLE, a trusted name in engine components
  • Designed for accurate piston assembly and ring gap verification

MAHLE support rails are essential tools for engine builders who need to properly install piston rings and ensure correct ring gap measurements. The precise sizing ensures the rail fits securely within the cylinder bore, allowing rings to be compressed uniformly during installation. This tool helps prevent ring damage and ensures proper ring seating for optimal engine performance and longevity.

Products specifications

Prop 65

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

great experience

Sweet.

great site! had all but one item in stock! AAAAAAAAAAAAAAAAA

Paypal checkout saves me a whole bunch of time. THANKS

Love how it integrates with Amazon

fair

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy