Sliding Door Spare Parts Home / Sliding Door Spare Parts Space Pro formerly Stanley/Acme Top E track Guide 17-5023 / 5022-3 Space Pro formerly Stanley/Acme Top E track Guide 17-5023 / 5022-3 £7.50 Stock Status: In Stock Replacement for parts 4020 and 4020-000 Product Code: STANLEY5023 Part number: 17-5023-000 Brand: SpacePro (formerly Stanley) GTIN: 5060416321743 Information 3 Wheel top guide part 17-5023 / 5022-3 for Space Pro (formerly Stanley) sliding door systems. Part 17-5023 / 5022-3. Works with E track systems. 3 wheel assembly for E track systems Spring Loaded Wheel System for perfect fit inside tracking Heavy Duty Construction This is an upgraded official replacement for parts 4020 and 4020-000 . This part works on all SpacePro (formerly Stanley) E Track systems. Previous versions of this part may have the part number 4212 on the metal bracket and 5022-3 on the plastic.