Muffler For Briggs and Stratton # 89966, 35-001, 35-007Replaces Part Numbers Briggs and Stratton 89966, 35-001, 35-007OEM Numbers : 89966, 35-001, 35-007Type : MufflerTread Type : Muffler Replaces Briggs & Stratton 89966. Fits 2-1/2 to 3-1/2 hp. Fits N, 5S, 6B-F, 6-R, 6B-HS, 6B-H, 6, 6R, 6F, 6S, 6B-S, 8, 8F, 8R, 8P, 8B-F, 8B-R, 8B-H, 60100 (2 hp horizontal); 80299, 80300, 81997 (3 hp horizontal). Also fits Tecumseh 33652, 30911, 30874, 27674, 28396 and Clinton 170-136-500, 170-18-500, 170-159-500.