The main difference is the 7108158 manifold kit will no longer use the 7106628 power-boost system on the manifold

-BY-PASS-(12

Husqvarna - 532421922 - EXTENSION DRAIN OIL

STWC52V-25KA

MTD - 918-04826A - N/A

Briggs & Stratton - 12V332-0138-F1 - Vanguard Series, Single Cylinder, 4-Cycle Gas Engine, 3/4" x 2-7/16" Crankshaft AAA The main difference is theBriggs & Stratton 12V332 0138 F1 Vanguard Series, Single Cylinder, 4 Cycle Gas Engine, 3 4" x 2 7 16" CrankshaftProduct Features: 203cc 3 in 1 controls with TransportGuard System Standard Integrated Cyclonic Air Filtration Starts Down to 20 degrees F 1 Pull Starting Nano Media Air Cleaner Filter Element with Autoshed Technology Commercial style Carburetor Liquid Cylinder Gasket Stale Fuel Resistance Acoustically Designed Engine Governed Idle High