The Pentair Drive Kit (356879Z) is the OEM replacement variable speed drive assembly for the IntelliFlo family of variable speed pumps, covering the IntelliFlo VS, IntelliFlo i1, IntelliFlo i2, IntelliFlo 2 VST, and IntelliFloXF VS models. IMPORTANT: KIT INCLUDES MULTIPLE COMPONENTSThis listing is for the complete Drive Kit, which includes items #19–23 as shown in the Pentair IntelliFlo exploded parts diagram. Confirm you need the full kit — individual drive components are not included separately in this listing. IMPORTANT: MODEL YEAR QUALIFICATION — i1 AND i2 PUMPSFor IntelliFlo i1 and i2 models, this drive kit applies to units manufactured after April 2016. If your pump was built before April 2016, verify the correct drive kit part number in your pump's service manual or on the original part before ordering. The drive kit is the electronic variable speed control assembly that governs motor speed across the RPM range of your IntelliFlo pump. A failed or damaged drive results in loss of speed control, fault codes, or complete pump shutdown. Replacing the drive kit with this OEM assembly restores factory variable speed operation and maintains compatibility with Pentair automation systems including IntelliTouch and EasyTouch. Specifications Pentair Part Number 356879Z Part Name Drive Kit Contents Items #19–23 (per Pentair IntelliFlo exploded diagram) Quantity Included Kit Compatible Equipment IntelliFlo VS, IntelliFlo i1, IntelliFlo i2, IntelliFlo 2 VST, IntelliFloXF VS Fits Into Brand Equipment Line Model / Part Number Notes Pentair IntelliFlo Family 011059 — IntelliFlo i1 Current replacement drive kit Pentair IntelliFlo Family 011060 — IntelliFlo i2 Current replacement drive kit Pentair IntelliFlo Family 011055 — IntelliFlo 2 VST Current replacement drive kit Pentair IntelliFlo Family 011028 — IntelliFlo VS Current replacement drive kit Pentair IntelliFlo Family 022055 — IntelliFloXF VS Current replacement drive kit Pentair IntelliFlo INTELLIFLO-VS — IntelliFlo Variable Speed Pump VS only (Variable Speed drive, not SVRS) Pentair IntelliFlo INTELLIFLO-I1 — IntelliFlo i1 Variable Speed Pump Drive Kit includes items #19–23; IntelliFlo i1 and i2 — After April 2016. Verify fitment before ordering. Pentair IntelliFlo INTELLIFLO-I2 — IntelliFlo i2 Variable Speed Pump Drive Kit includes items #19–23; IntelliFlo i1 and i2 — After April 2016. Verify fitment before ordering. Pentair IntelliFlo INTELLIFLOXF VS — IntelliFlo VS Pump VS model only Pentair IntelliFlo Family 011008 — IntelliFlo i1 original Current replacement drive kit Pentair IntelliFlo Family 011009 — IntelliFlo i2 original Current replacement drive kit Pentair IntelliFlo Family 011018 — IntelliFlo VS original Current replacement drive kit Pentair IntelliFlo Family 022005 — IntelliFloXF VS original Current replacement drive kit Pentair IntelliFlo INTELLIFLO 2 VST — IntelliFlo 2 VST Pump 2VST and VS models; includes items #19–23 Pentair IntelliFlo INTELLIFLO VS — IntelliFlo VS Pump 2VST and VS models; includes items #19–23 Pentair IntelliFlo i1 — IntelliFlo i1 Variable Speed Pump Drive Kit includes items #19–23; IntelliFlo i1 and i2 — After April 2016. Verify fitment before ordering. Pentair IntelliFlo i2 — IntelliFlo i2 Variable Speed Pump Drive Kit includes items #19–23; IntelliFlo i1 and i2 — After April 2016. Verify fitment before ordering. Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment's manual or on the original part itself before ordering. Poolaroo Pro Tip The drive is the most electronically sensitive component in an IntelliFlo pump. Before ordering, confirm the failure is isolated to the drive and not to the motor or control board — a qualified pool technician can run Pentair's onboard diagnostics to confirm the fault code points specifically to the drive assembly. Also note that 356879Z is the VS (Variable Speed) drive kit only — it does not apply to SVRS (Safety Vacuum Release System) variants. Cross-reference your pump's model label and serial number against the April 2016 manufacture date cutoff if you own an i1 or i2 model.