OEM Parts

Factory Piston Assembly for the Briggs 6.5 HP OHV Animal Model 12 Engine. Manufactured by Federal Mogul this piston is stock bore(2.689") and includes rings and circlip. Wrist pin #555520 sold separately.  

Factory Piston Assembly for the Briggs 6.5 HP OHV Animal Model 12 Engine. Manufactured by Federal Mogul for Briggs and Stratton this piston is +.010" bore(2.699") and includes rings and circlip. Wrist pin #555520 sold separately.

Factory Piston Assembly for the Briggs 6.5 HP OHV Animal Model 12 Engine. Manufactured by Federal Mogul for Briggs and Stratton this piston is +.020" bore(2.709") and includes rings and circlip. Wrist pin #555520 sold separately.

Factory Piston Assembly for the Briggs 6.5 HP OHV Animal Model 12 Engine. Manufactured by Federal Mogul for Briggs and Stratton this piston is +.030" bore(2.719") and includes rings and circlip. Wrist pin #555520 sold separately.

Briggs Factory Motorsports Rings. Standard bore(2.689") for 6.5HP Animal OHV Engine Model 12.

Briggs Factory Motorsports Rings +.010 over bore(2.699") for 6.5HP Animal OHV Engine Model 12.

Briggs Factory Motorsports Rings +.020 over bore(2.709") for 6.5HP Animal OHV Engine Model 12.

Briggs Factory Motorsports Rings +.030 over bore(2.719") for 6.5HP Animal OHV Engine Model 12.

Animal head gasket with fire ring!