Mr. Gasket
Copper Seal Collector Gasket Bolt Pattern 3-7/8 Individual Fits 2-1/2 Inch Diameter 3-Bolt Round Header Collector Mr Gasket
SKU: M00S 7177MRG
Description
Part #: 7177MRG
Mr. Gasket Copper Seal Collector Gaskets are made from dead soft solid copper .043 inch thick. This gasket incorporates .051 inch embossment around the port to seal irregular surfaces. Designed for high-performance street, drag race, oval track and turbocharged (extreme heat) applications.
Features:
- Withstands Extreme Exhaust Heat
- Conforms to and seals minor surface irregularities.
- Easy Removal For Disassembly
- Provides excellent sealing and durability.
Collector Gasket - CopperSeal - 3 in Diameter - 3-Bolt - Copper - Each
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Mr. Gasket |
| Part Number | M00S 7177MRG |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy