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If you own a 2005–2011 Big Dog Motorcycle, including Bulldog, Mastiff, K‑9, Pitbull, Coyote, Ridgeback, or Wolf models, you know the primary inspection cover gasket is key to keeping your primary compartment leak-free. Switch from old O‑rings to these upgraded OEM fiber gaskets—sold in pairs—for reliable sealing and peace of mind.
Priced at just $14.95 plus flat‑rate shipping, this genuine Big Dog part replaces the leak-prone older seals. Riders confirm its effectiveness: “well made…stop my leak” and “Highly recommend replacing old gasket…No more leak.”
Forum vets suggest additional tips for a clean installation:
“Spread a small layer of Loctite 5699 RTV Silicone Sealer onto the face of the primary…hand tighten…then tighten screws to 54 in lbs with a final torque of 108 in lbs…tighten top left, bottom right, bottom left, top right.”
Others recommend keeping the gasket dry, torquing gently to avoid cracking the inspection cover corners, and using Permatex Ultra Grey or similar sealers. If you choose sealant, let it set before final torque.
Looking for full coverage? The Primary Gasket Kit offers all O‑rings, inspection gasket, and main seal ring for $59.95—ideal for full maintenance or restoration. But if you’re only focused on stamping out leaks at the inspection cover, these (x2) gaskets are the perfect targeted fix.
At Big Dog Motorcycles, we stand by our craftsmanship and parts heritage. Using genuine Big Dog Parts ensures that every component—especially those critical to oil containment—meets factory tolerances. Pair this gasket with other trusted parts from the Big Dog Parts cornerstone page to maintain your bike’s integrity, appearance, and performance.
The (x2) Big Dog Motorcycles Primary Inspection Cover Gasket (2005–11) is a must-have for any owner experiencing seepage or performing primary maintenance. Easy to install, affordable, and engineered for the long haul, these factory-certified OEM gaskets are the smart choice. Get yours now and keep your ride clean and tight.
