Toro Super Recycler (SR4) with OHV Engine (Serial Range #312000001-312999999) Tune-up Kit Toro Super Recycler (SR4) with Toro OHV Engine (Serial Range #312000001-312999999) Tune-up Kit Air Filter (Toro Part 119-1909) Spark Plug (NGK BPR5ES) Toro Premium Oil 18 FL. OZ SAE30 Oil (Toro Part 38916) 21 Blade (Toro Part 133-8183-03 (Replaces Prior Part 108-3762-03))