Grant Motor For Auger Spira Wps166X

Was WPS87

Grant Auger Motor – WPS166X

Genuine Replacement Motor for Grant Spira Biomass Boilers

The Grant WPS166X Auger Motor is a genuine OEM replacement designed specifically for Grant Spira wood pellet biomass boilers. This motor drives the auger mechanism that feeds fuel pellets from the storage hopper into the combustion chamber, ensuring steady fuel delivery and efficient operation of the boiler.

A properly functioning auger motor is essential for maintaining consistent heat output, smooth burner ignition, and reliable boiler performance. If the auger fails to rotate or you’re experiencing fuel feed issues, replacing the motor with the WPS166X ensures your boiler runs safely and efficiently.

 Key Features & Benefits

• OEM-Approved – Part Number WPS166X
  Manufactured to Grant’s exact specifications for use with Spira biomass boiler models.

• Reliable Pellet Delivery
  Powers the auger to feed wood pellets smoothly into the combustion chamber.

• Robust & Durable Construction
  Built for constant-duty operation in demanding biomass heating environments.

• Smooth & Quiet Operation
  Low-vibration design helps maintain quiet running and prolongs component life.

• Quick, Straightforward Installation
  Pre-configured with correct mounting and wiring setup for Grant Spira units.

 Compatible Grant Boiler Models

The WPS166X Auger Motor is compatible with the following Grant Spira biomass boiler models:

• ? Grant Spira 5kW

• ? Grant Spira 9kW

• ? Grant Spira 15kW

• ? Grant Spira 18kW

• ? Grant Spira 22kW

• ? Grant Spira 26kW

• ? Grant Spira 36kW

Not sure if this motor fits your unit? Send us your boiler model or serial number—we're happy to help confirm compatibility.

When to Replace the Auger Motor

Consider replacing your WPS166X motor if:

• The auger stalls, slips, or fails to rotate

• You hear unusual noises from the fuel feed area

• The boiler displays fuel feed fault codes or ignition failures

• Pellet delivery becomes inconsistent or stops entirely

A faulty motor can lead to fuel starvation, burner lockouts, or inefficient combustion, so timely replacement is essential for maintaining heating performance.

Technical Specifications

• Part Number: WPS166X

• Manufacturer: Grant UK

• Function: Drives auger for wood pellet feed

• Motor Type: Electric geared motor

• Mounting: Direct-fit to Spira auger assembly

• Voltage: 230V AC

• Application: Biomass boiler fuel feed system

• Includes: Motor with correct fittings for plug-and-play installation