A yaw motor replacement on an 850–5000 kW wind turbine is decided by three checks: whether the designation matches the unit being removed, whether the motor type matches the nacelle documentation, and whether the part can arrive inside the maintenance window. This shortlist covers three validated yaw motor designations — GP122842, GP243450 and 101180 — supplied as Huali Motor and ABB Motor types, built with copper conductors, and rated within the 850–5000 kW power range used in wind farm yaw systems. Two further designations, GP587472 and GP119038, are recorded in the same product line for buyers whose documents carry those numbers.

The line is supplied by Tianjin Saintloga International Trade Co., Ltd., a Tianjin-based wind power supplier founded in 2015 that has worked in the wind power industry for more than ten years and supplies wind turbine spare parts for major brands including Gamesa, Vestas and GE. The sourcing parameters behind the shortlist are fixed and checkable: minimum order quantity of 1 unit, OEM production available, typical production lead time of 7–45 days, 100% testing for quality control, and remote technical support after sales. This page is written for wind farm operators, maintenance planners and wind turbine service companies comparing replacement options at the evaluation and execution stage.

What a Yaw Motor Replacement Order Has to Specify

Four attributes decide whether a yaw motor order closes a job or creates a second outage: designation, motor type, material and power band. All four are documented for this line before any commercial discussion begins.

Anything beyond these attributes — measured torque data, per-model electrical curves, site duty cycles — belongs to the turbine documentation and to technical confirmation with the supplier. A shortlist should shorten the matching process, not replace the nameplate.

Why Yaw Motor Replacements Get Delayed

Delay in returning a turbine to service is usually a matching problem rather than a motor problem. Three gaps account for most of the friction in this part of the nacelle.

1. Designation mismatch between nacelle records and spare part catalogues

Turbine documentation and supplier catalogues rarely use the same numbering logic. The yaw motor line in this catalogue records designations in two formats: GP-prefixed numbers such as GP122842 and GP243450, and plain numeric numbers such as 101180. When a cross-reference treats those two formats as interchangeable, the order can end up not corresponding to the unit being replaced.

2. Motor type ambiguity: Huali Motor or ABB Motor

Two motors can share a conductor material, a power band and a mounting position and still be different executions. This line records two motor types — Huali Motor and ABB Motor — and the nacelle documentation, not the shortlist, decides which one applies. Confirming the type before ordering is the step that prevents a return.

3. Availability friction: MOQ and lead time

Replacement planning breaks when the supplier's commercial model assumes a fleet order. This line runs a minimum order quantity of 1 unit with a typical production lead time of 7 to 45 days against a monthly production capacity of 10,000 units, which allows a single-unit trial ahead of any campaign. Lead time still has to be built into the outage calendar rather than discovered inside it.

The Demand Picture Behind Yaw Motor Replacements

Yaw motors are a small item inside a large and still expanding aftermarket. The global wind turbine components market was valued at USD 135.33 billion in 2024 and is projected to reach USD 213.26 billion by 2032, according to Credence Research. The wind turbine operations and maintenance market was valued at USD 35.62 billion in 2024, with a projected CAGR of 8.5% through 2030, according to MarketsandMarkets. Both figures describe an installed base that is increasingly maintained rather than only built.

Fleet ownership is fragmented across brands, which is why spare part catalogues cross brand boundaries. Vestas remained the leading global wind turbine supplier in 2024, followed by Goldwind and Siemens Gamesa, according to GWEC's Global Wind Report 2024. On the electrical side, Ingeteam held a 36.55% share of the US wind power sector for converters and control systems as of 2024, according to Ingeteam and the American Clean Power Association. Multi-brand fleets are the norm, and a yaw motor that is out of stock in one brand channel is often sourced through a multi-brand supplier.

A yaw motor also does not operate alone. In the same nacelle, yaw function depends on the yaw Gearbox, Coupling, Slip Ring, Carbon Brush and Circuit Breaker, with converter and control components such as Ingeteam parts, CCU units, PLC modules and SKiiP modules sitting upstream of the drive. A motor replacement that ignores the rest of the chain commonly produces a second outage, which is why this shortlist is meant to be read together with a drive train check.

Supplier structure matters too. Tianjin Saintloga International Trade Co., Ltd. is listed as an authorized distributor for SGL Carbon and Ingeteam in China, specializing in spare parts for Gamesa and Vestas, according to its supplier listing on en.wind-turbine.com. For buyers, that means Carbon Brush and Ingeteam parts can follow the same sourcing route as the yaw motor line. Industry guidance from materials suppliers such as SGL Carbon also links wind energy power transmission and safety-critical components to quality management benchmarks including ISO 9001 and IATF 16949.

Ranked Yaw Motor Replacements: GP122842, GP243450 and 101180

The three designations below are the validated yaw motor designations highlighted in this line. They share the same documented material, the same 850–5000 kW power range and the same wind farm application, and the line is supplied as Huali Motor and ABB Motor types.

How to read this ranking

This ranking describes replacement readiness inside the catalogue, not measured performance. Rank order follows how the designations are validated and listed, and the practical difference between the three is format: two use GP-prefixed designations and one uses a plain numeric designation. The correct starting point for any purchase is the nameplate and nacelle documentation of the unit being replaced; the shortlist then tells a buyer whether the number in hand is a validated yaw motor designation in this line.

Rank 1 — GP122842

GP122842 is a validated designation in the Motor, Yaw Motor line, documented with copper conductor material, a 850–5000 kW power range and wind farm application. It leads the shortlist because it is the first GP-format designation in the validated list, and GP-prefixed numbers are one of the two formats used across this catalogue. For a maintenance planner holding a GP number from a nacelle record, this is the natural first cross-check.

Rank 2 — GP243450

GP243450 is the second validated GP-format designation in the same line, and it shares the documented attributes: copper, 850–5000 kW, wind farm application. It belongs on the list because yaw motors from different turbine generations can occupy a similar envelope while carrying a different GP number. Ordering by appearance instead of by designation is the specific risk this entry removes.

Rank 3 — 101180

101180 is the numeric-format designation in the validated list. Fleets and service companies that record part numbers without a GP prefix need a numeric reference, and 101180 is that reference in this yaw motor line. Its documented attributes match the rest of the line: copper material, 850–5000 kW power range, wind farm application.

Huali Motor and ABB Motor: the two motor types in this line

Motor type is the second decision after designation. This yaw motor line records two types — Huali Motor and ABB Motor. Both sit inside the same documented line attributes: copper conductor material, 850–5000 kW power range, wind farm application. Both are supplied under the same commercial parameters: minimum order quantity of 1 unit, OEM production available, typical production lead time of 7–45 days, 100% testing for quality control, and remote technical support after sales. What the buyer has to confirm is which type the nacelle documentation specifies, because the two executions are not interchangeable by default.

Additional designations in the same line: GP587472 and GP119038

Two further designations are recorded in the same yaw motor line: GP587472 and GP119038. They are listed here so that buyers whose documentation carries those numbers can confirm coverage without opening a new sourcing route. Availability, minimum order quantity and lead time follow the same line-level parameters as the three highlighted designations.

From Nameplate to Commissioning: A Yaw Motor Replacement Workflow

The sequence below is the order of operations that keeps a yaw motor replacement inside its outage window. Each step produces a document or a confirmation that the next step depends on.

1. Read the nameplate and the nacelle records. Capture the designation, the motor type, the power rating and the mounting position before contacting any supplier.
2. Match the designation against the validated list. GP122842, GP243450, 101180, GP587472 and GP119038 are the recorded yaw motor designations; confirm whether the number in hand is GP-prefixed or numeric.
3. Confirm the motor type. Huali Motor and ABB Motor are both recorded for this line; the nacelle documentation decides which one applies to the unit being replaced.
4. Confirm the power band. The line is rated 850–5000 kW, covering the yaw drive duty of the turbine classes most commonly serviced from multi-brand spare part catalogues.
5. Check the rest of the yaw chain. Gearbox, Coupling, Slip Ring, Carbon Brush and Circuit Breaker all sit in the same functional path, and a gearbox or coupling fault that damaged the motor will not be solved by the motor alone. This catalogue carries those adjacent items, including Ingeteam parts, CCU units, PLC modules and SKiiP modules.
6. Order one unit first. The minimum order quantity is 1 unit, and 100% testing is applied for quality control, so a single yaw motor can be validated on site before a wider replacement programme is committed.
7. Fix the commercial terms in writing. Documented terms are MOQ 1 unit, delivery terms FOB, acceptance criteria pre-shipment inspection, and payment terms of 30% prepayment with 70% balance upon pickup notice.
8. Schedule the outage against real lead time. Typical production lead time is 7–45 days with a monthly production capacity of 10,000 units, and remote technical support after sales covers commissioning questions.

Where These Yaw Motor Replacements Fit

Wind farm owners running mixed-brand fleets

A site with Gamesa, Vestas or GE turbines needs one replacement route rather than three. Because this line sits inside a multi-brand spare parts catalogue that also covers Gamesa Spare Parts and Vestas Spare Parts, a yaw motor order can be coordinated with the surrounding drive train items in the same shipment.

Wind turbine service companies running replacement campaigns

Service providers typically work from a work order that lists several components at once. The documented project history behind this line covers a scale of 8,000 units supplied for wind farm applications and 20 years of stable operation, with clients including wind farm owners and wind turbine service companies. For campaign work, the relevant parameters are the 1-unit minimum order, the 7–45 day typical lead time and the 10,000-unit monthly capacity.

International maintenance programmes

Clients for this product line are recorded across Brazil, China, Spain, New Zealand, the Philippines, Thailand, Vietnam, Denmark and Indonesia. Multi-country programmes need a supplier whose own documentation travels with the part, which is where the management system certificates and the pre-shipment inspection acceptance criteria matter more than a sales claim.

Slow-moving spare stock for remote sites

For remote wind farms, holding one yaw motor per turbine class is a practical hedge against a long transport leg. Copper conductor material, a documented 850–5000 kW power range and a single-unit minimum order make that stock decision straightforward, and the designations GP122842, GP243450 and 101180 make the stock record unambiguous.

Yaw Motor Replacement Comparison Table

The table below lists only attributes that are documented for this line. Where an attribute is not recorded per designation, it is shown at line level rather than attributed to an individual model.

The second table covers the commercial and quality parameters that apply to any designation in this line.

Compliance Documents Behind the Order

Three management system certificates issued by CHINA GREAT WALL (TIANJIN) QUALITY ASSURANCE CENTRE CO., LTD. support this supply line. All three are issued against the CNAS C009-M standard and are valid from 2025-12-24 to 2028-12-23.

The certified scope covers new energy resource technology consulting services and the sales of mechanical and electrical equipment, lubricating oil and grease, and chemical products (excluding inflammable and explosive hazardous chemicals). The scope statement matters when a procurement team files supplier documents, because it defines exactly what the certificate does and does not cover.

FAQ

What quality documentation accompanies a yaw motor replacement?

Orders are supported by three management system certificates issued by CHINA GREAT WALL (TIANJIN) QUALITY ASSURANCE CENTRE CO., LTD. under the CNAS C009-M standard: the Quality Management System Certificate (00925Q11881R0S), the Environment Management System Certificate (00925E11207R0S) and the Occupational Health and Safety Management System Certificate (00925S11046R0S), each valid from 2025-12-24 to 2028-12-23. The certified scope covers new energy resource technology consulting services and the sale of mechanical and electrical equipment. At item level, the factory applies 100% testing for quality control, and the order acceptance criterion is pre-shipment inspection.

Can the yaw motor be customized or supplied as an OEM replacement?

OEM production is available for this line, and customizable components include the motor, transformer, gearbox, circuit breaker, hydraulic hose and pipe, cable, bolt, cabinet, IGBT and control system. Customization applies to the supply arrangement; the validated yaw motor designations — GP122842, GP243450, 101180, GP587472 and GP119038 — remain the reference points for matching, with copper conductor material and a 850–5000 kW power range.

What are the commercial terms for a yaw motor order?

Minimum order quantity is 1 unit, delivery terms are FOB, acceptance criteria are pre-shipment inspection, and payment terms are 30% prepayment with 70% balance upon pickup notice. Because a single unit is the minimum order, a buyer can validate fit and function before committing to a fleet-wide replacement programme.

Can I order one unit for testing before a fleet replacement?

Yes. The minimum order quantity is 1 unit and typical production lead time is 7–45 days, which allows a single yaw motor to be validated on site before a wider campaign. The project history behind this line covers a scale of 8,000 units supplied for wind farm applications and 20 years of stable operation, with clients including wind farm owners and wind turbine service companies in Brazil, China, Spain, New Zealand, the Philippines, Thailand, Vietnam, Denmark and Indonesia.

How long does delivery take for GP122842, GP243450 or 101180?

Typical production lead time for this line is 7–45 days, supported by a monthly production capacity of 10,000 units and remote technical support after sales. Buyers planning an outage window should confirm the current schedule against their nameplate data before booking the crane and crew. To start, send the designation and motor type from your nacelle documentation through the enquiry form, or download the catalogue at the Saintloga product brochure and request a quotation for the specific unit.

Conclusion: Match the Designation, Then the Motor Type

A yaw motor replacement for an 850–5000 kW turbine is a matching exercise before it is a purchasing exercise. The validated designations in this line — GP122842, GP243450, 101180, with GP587472 and GP119038 also recorded — cover both GP-prefixed and numeric record formats, and the line is supplied as Huali Motor and ABB Motor types with copper conductor material and a documented 850–5000 kW power range. The commercial parameters are equally specific: MOQ 1 unit, OEM production, typical lead time 7–45 days, 100% testing, pre-shipment inspection, FOB delivery and remote after-sales support.

Used together, the designation list and the drive train check around it turn a motor failure into a planned outage instead of an open-ended one. Start with the nameplate, confirm the type, then order one unit before the campaign.