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124538, 124539
Evergrow
186807, 186808
The CARRIAGE ASSY LEFT OEM Ref. 124538 and CARRIAGE ASSY RIGHT OEM Ref. 124539, supplied by Linhai Evergrow as Evergrow Part #186807 and #186808, are carriage assembly components applicable to the NOV TDS-11SA top drive system.
These left- and right-hand carriage assemblies belong to the mechanical pipe-handling arrangement of the TDS-11SA. For drilling contractors and top drive maintenance companies, having the correct carriage assembly available can simplify equipment repair, replacement, and planned maintenance.
The two carriage assemblies are identified as follows:
Product | Position | OEM Ref. | Evergrow Part No. | Application |
CARRIAGE ASSY | Left | 124538 | 186807 | NOV TDS-11SA top drive |
Right | 124539 | 186808 |
The left and right assemblies have separate part numbers for their components and should be identified according to their installation position before ordering.
The carriage assembly is part of the mechanical equipment used with the top drive's pipe-handling system. As a complete assembly, it brings together the corresponding carriage components required for its specific left or right hand configuration.
The 124538 LEFT carriage assembly corresponds to Evergrow Part #186807, while the 124539 RIGHT carriage assembly corresponds to Evergrow Part #186808.
The carriage assemblies are associated with individual carriage components used in the TDS-11SA system.
124538 CARRIAGE ASSY, LEFT | 124539 CARRIAGE ASSY， RIGHT | ||
Part Number | Description | Part Number | Description |
53201 | FITING,GREASE(1/8”-27 NPT) | 124536-503 | CARRIAGE,(RICHT),41.00”SETBACK |
124535-503 | CARRIACE,(LEFT),41.CC”SETBACK | 51402-12-S | PIN,COTTER |
51219-2 | FERRULE,CABLE | 124536-502 | CARRIAGE,(RIGHT),39.50" SETBACK |
51402-12-S | PIN,COTTER | 124536-500 | CARRIAGE,(RIGHT),33.75"SETEACK |
124535-502 | CARRIAGE,(LEFT),39.50"SETBACK | 50812-N-C | WASHER,FLAT |
124535-500 | CARRIAGE,(LEFT),33.75”SETBACK | 125727-1 | PLATE |
50812-N-C | WASHER,FLAT | 30152845 | PIN |
113370 | STRAP,ACCUMULATOR,6" | 51220-2 | CABLE RETANING |
50908-C | WASHER,LOCK-REGULAR | 125727-3 | FERRULE BAR |
50008-10-C5D | SCREW,HEX HD.CAP,1/2 UNC X 1.25 | 51219-2 | FERRULE CABLE |
50108-10-CD | SCREW,CAP-SOCKET HD.1/2 UNC x 1.25 | 50512-C | NUT,HEX-SLOTTED |
88710 | STRAP | 53201 | FTTING,GREASE |
125727-2 | PLATE | 51716-24-C | BOLT,SHOULDER SOCKET HD |
125727-1 | PLATE | 80569 | NUT,JAM |
30152845 | PIN | 125727-2 | PLATE |
51220-2 | CABLE RETAINING | 30157306 | PIN,LINCH |
125727-3 | FERRULE BAR | ||
50912-C | WASHER,LOCK-REGULAR | 51132-C | WASHER,LOCK,HI-COLLAR,2”DIA |
50006-5-C5D | 5CREW,HEX HD,CAP | 55324-C | NUT,HEX-JAM |
129375 | BRACKET,ANGLE | ||
51716-24-C | BQLT,SHOULDER SOCKET HD | ||
80569 | NUT,JAM | 51024-C | WASHER,LOCK-1.5" |
50512-C | NUT,HEX SLOTTED | ||
30157306 | PIN,LINCH | 112875 | PIN,BOGEY PIVOT |
51132-C | WASHER,LOCK,HI-GOLAR,2" DIA. | ||
55324-C | NUT,HEX-JAM(1.50-12 UNF-2B) | ||
51024-C | WASHER,LOCK-1.5” | ||
112875 | PIN,BOGEY PIVOT | ||
These components correspond to the left and right carriage assemblies respectively. When maintenance involves only an individual carriage component, the separate component part number may be used instead of ordering the complete assembly.
However, if multiple components require replacement or the complete carriage assembly is damaged, a complete 124538 LEFT / 186807 or 124539 RIGHT / 186808 assembly may be required.
Top drive pipe-handling equipment operates in a demanding drilling environment. Repeated mechanical movement, vibration, loading, and general service conditions can affect carriage components over time.
During scheduled TDS-11SA maintenance, technicians should inspect the carriage assembly and its associated components for visible damage, excessive wear, deformation, or other abnormal conditions.
Particular attention should be given to the condition of the complete assembly and the relationship between its individual components. If an individual part is worn but the remainder of the assembly remains serviceable, a component-level replacement may be appropriate. If the assembly has extensive damage or multiple worn components, replacement of the complete carriage assembly may be considered.
All inspection, removal, and installation work should follow the applicable maintenance procedures for the NOV TDS-11SA top drive.
Because the carriage system includes separate left and right hand configurations, accurate part-number identification is essential.
For the left-hand carriage assembly, use:
124538 → Evergrow 186807
For the right-hand carriage assembly, use:
124539 → Evergrow 186808
When requesting a quotation, customers should provide the OEM reference, Evergrow part number, top drive model, required side, and quantity whenever possible. Photos of the existing component can also be useful for part identification.
Linhai Evergrow supplies replacement parts for NOV TDS-11SA top drive systems, including carriage components and other mechanical, hydraulic, gearbox, pipe-handling, wash pipe, IBOP, bearing, and brake parts.
The availability of both complete carriage assemblies and individual carriage components allows customers to select replacement parts according to their actual maintenance requirements.
For customers searching for CARRIAGE ASSY LEFT 124538, CARRIAGE ASSY RIGHT 124539, Evergrow 186807, or Evergrow 186808, these part numbers provide clear identification for TDS-11SA top drive spare parts procurement.
If you need CARRIAGE ASSY LEFT OEM Ref. 124538 / Evergrow Part #186807 or CARRIAGE ASSY RIGHT OEM Ref. 124539 / Evergrow Part #186808 for an NOV TDS-11SA top drive, contact Linhai Evergrow for availability, quotation, and technical information.
Evergrow supports drilling contractors, oilfield equipment distributors, top drive service companies, and maintenance teams with replacement parts for NOV top drive systems.
Email: sales@linhaievergrow.com
Tel./WhatsApp: +86 18991929885
All manufacturer numbers, names, and descriptions are used for reference purposes only. Evergrow is not an OEM authorized reseller of the parts.
