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Mr. Gasket Ultra-Seal Header Gaskets 7529

Mr. Gasket Ultra-Seal Header Gaskets 7529
$35.99 ea
NEWARRIVING SOONEstimated Ship Date 11/11/2025 (If Ordered Today)69 Available from HOLLEY PERFORMANCE PRODUCTS as of 10/26/2025
Model: 4012260
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]
Manufactured from high-temperature steel core/graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head.
Features:
  • Withstands Intense Exhaust Heat
  • Graphite-Impregnated Facing
  • Superior Tensile Strength
  • Resists Deteriorating
  • Anti-stick Properties

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Buick Apollo 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Apollo 1974 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Apollo 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Centurion 1972 7.5L / 455 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Centurion 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Century 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Century 1974 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Century 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Century 1976 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Century 1977 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Century 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Century 1979 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Electra 1976 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Electra 1977 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Electra 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Electra 1979 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Electra 1980 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Estate Wagon 1970 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Estate Wagon 1972 7.5L / 455 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Estate Wagon 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Estate Wagon 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Estate Wagon 1979 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Estate Wagon 1980 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick GS 350 1968 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick GS 350 1969 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick GS 1970 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick GS 1971 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick GS 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1968 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1969 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1970 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1971 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1974 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1976 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1977 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1979 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick LeSabre 1980 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Regal 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Regal 1974 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Regal 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Regal 1976 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Regal 1977 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Riviera 1977 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Riviera 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1968 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1969 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1970 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1971 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1976 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1977 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Skylark 1979 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Special 1968 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Special 1969 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Sportwagon 1968 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Sportwagon 1969 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Sportwagon 1970 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Sportwagon 1971 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Buick Sportwagon 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile 98 1972 7.5L / 455 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile 98 1973 7.5L / 455 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Cutlass Supreme 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Cutlass Supreme 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Cutlass 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Cutlass 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Delta 88 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Delta 88 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile F85 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Omega 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Omega 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Omega 1976 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Vista Cruiser 1972 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Oldsmobile Vista Cruiser 1973 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Bonneville 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Bonneville 1979 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Bonneville 1980 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Catalina 1978 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Catalina 1979 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Catalina 1980 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Grand Am 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Grand LeMans 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac LeMans 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Ventura 1974 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Ventura 1975 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;
Pontiac Ventura 1976 5.7L / 350 / V8 ULTRA SEAL; EXHAUST GASKET SET; RECTANGLE PORT; W-1.28 IN. X H-2.3 IN;

Specifications:

Collector Gaskets Included No
Emission Code 5
Engine Buick V8
Gasket Line Ultra-Seal
Material Ultra-seal
Part Type Exhaust Manifold Gasket Set
Port Shape Rectangle
Port Size 1.37" x 1.53"
Product Type Header Gaskets
Proposition 65 www.P65Warnings.ca.gov
Thickness .062"
Warranty Limited 90 Day Warranty TX, Limited 90 Day Warranty
Weight 0.5500

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