Stant SO-78 Engine Crankcase Breather Cap 10078 1969-1985 GM NOS

Genuine Stant SO-78 Engine Crankcase Breather Cap (NOS)

Restore the stability of your classic GM vehicle with this genuine Stant SO-78 Engine Crankcase Breather Cap. This is a vintage New Old Stock (NOS) part, manufactured in the USA. It features high-quality vintage materials that provide superior durability and correctness compared to modern stiff overseas reproductions.

This part is designed for the Crankcase / Valve Cover position on specific 1969-1985 Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac vehicles.

Key Features:

• Part Number: SO-78 (Stant)
• Interchange Part: Stant 10078, AC Delco FB59, Fram CA3504
• Position: Crankcase / Valve Cover
• Engine Fitment: Varies (V6, V8 including Diesel)
• Origin: Made in USA (Vintage Stock)
• Condition: NOS (New Old Stock)
• Type: Push-On Breather

Verified Vehicle Fitment:

Fits Years:

1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985

Product Note: Vintage Stock Photos

This listing uses stock images for reference. Because these are NOS (New Old Stock) parts manufactured decades ago, the item you receive may have cosmetic differences from the photo, such as:

• Packaging: Box styles, colors, or condition may vary (or item may be bulk packed).
• Finish: Materials, colors, or plating may vary between production runs.
• Shelf Wear: Minor cosmetic signs of age are normal for vintage parts.

Rest assured, the Part Number (SO-78) and Fitment specifications are verified to be 100% correct for the vehicles listed.

Unbeatable Prices & Expectations

We scour the country to find the best deals on NOS and NORS parts so we can pass the savings on to you. Our prices are often significantly lower than major competitors.

Please Note: While we verify fitment to the best of our ability using vintage catalogs, there can be variations. We strongly recommend comparing our photos and specs to your original part before purchasing.