Ossa Gasket Center Case Gasket (Small Style Crank) 1970-77

Ossa Gasket Center Case Gasket (Small Style Crank) 1970-77
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Ossa Gasket Center Case Gasket (Small Style Crank) 1970-77

Center case gasket for small style crank.NOTE: The Explorer used two different center case gaskets depending on the crankshaft style. The older small diameter crank uses the OW-991-606 and the newer style large diameter crank uses OW-123-215. Most times the cases must be split to determine which gasket is required for the Explorer

  • 1970 Ossa DMR
  • 1970 Ossa Stiletto 175cc
  • 1970 Ossa Pioneer 250cc
  • 1970 Ossa Stiletto 250cc
  • 1971 Ossa Pioneer 250cc
  • 1971 Ossa Pioneer 175cc
  • 1971 Ossa MAR Mick Andrews Replica 250cc
  • 1971 Ossa Stiletto 175cc
  • 1971 Ossa Stiletto 250cc
  • 1971 Ossa Stiletto TT 250cc
  • 1971 Ossa DMR
  • 1972 Ossa Pioneer 250cc
  • 1972 Ossa Pioneer 175cc
  • 1972 Ossa MAR Mick Andrews Replica 250cc
  • 1972 Ossa Stiletto 175cc
  • 1972 Ossa Stiletto 250cc
  • 1972 Ossa Stiletto TT 250cc
  • 1972 Ossa DMR
  • 1973 Ossa Pioneer 175cc
  • 1973 Ossa SDR Six Day Replica
  • 1973 Ossa Explorer 250cc
  • 1973 Ossa MAR Mick Andrews Replica 250cc
  • 1973 Ossa Stiletto 175cc
  • 1973 Ossa Stiletto 250cc
  • 1973 Ossa Stiletto TT 250cc
  • 1974 Ossa Explorer 250cc
  • 1974 Ossa MAR Mick Andrews Replica 250cc
  • 1975 Ossa Explorer 250cc
  • 1975 Ossa MAR Mick Andrews Replica 250cc
  • 1976 Ossa MAR Mick Andrews Replica 250cc
  • 1977 Ossa MAR Mick Andrews Replica 250cc


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Highest quality materials and construction

Werks Gaskets specializes in composite fiber gaskets for vintage motorcycles. Our gaskets meet or exceed OEM specifications and are made from top-quality American materials. We can produce over 12,000 different gaskets on our new CNC flatbed, as well as the ability to custom fabricate the precise Gasket you need. Send us the old Gasket or submit an accurate drawing outline, even a photo with minor dimensions, and we’ll handle the rest. Our goal is to continue building the largest database of motorcycle engine gaskets available for riders, racers, and bike builders alike.

Werks Gasket  is a family-owned and operated business with a simple, old-school philosophy:  do what you say and say what you do. Let us put our years of experience and enthusiasm for vintage motorcycles to work for you. We back every Gasket with our Werks Gaskets 100% satisfaction guarantee.


Werks Gasket Features

  • American gasket material,exceeds Oem spec
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  • Custom made
  • Base base gaskets made in 0.019-.030 thickness
  • Latest CNC flatbed cutting system
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  • Standard and Custom designs
  • Shipped in 36hrs.
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Here at Werks Gasket, we know you have a special relationship with your motorcycle. I understand because I share your passion for motorsports. Some riders look forward to routine maintenance as a chance to spend quality time in the garage,  to get to know your bike and invest in its longevity; others want to get it done as quickly, easily and affordably as possible.

We carry thousands of high quality gaskets for motorcycle classics, available for purchase at great prices. Our gaskets exceed all OEM specs and we guarantee 100% satisfaction. We’ve helped thousands of motorcycle enthusiasts with the gaskets they need to ride. All gaskets are high quality made from American premium material.

If you love to wrench on your motorcycle or you loathe it, the principles of good maintenance are the same.   Choose high-quality replacement parts, use the proper tools and prepare your engine components properly.   Never reuse old gaskets when performing maintenance or repairs, and make sure that mating surfaces are clean and free of debris before installing your new motorcycle engine gaskets. Follow the recommendations in your manual for sealants, and give yourself enough time to finish the job correctly. Remember that not all replacement motorcycle engine gaskets are equal. Inferior materials and imprecise cutting methods can leave you with leaks that rob your engine of performance and have the potential to do severe damage.


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Call or Email or shop online today to view our inventory of gaskets or learn more about having a gasket custom-made for you and let us help you keep your vintage motorcycle running great for miles.

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