1PCS Automatic Controller GCU-20 For Generator Control Unit GCU20

OEM Part For the Following Models

GCU-20 Automatic Engine & Generator Control Unit has many useful functions like annunciator alarm output and selectable EM81 / EM121 MPU signal for speed sensing. It\'s suitable for pump engine control. GCU-20 also provide IDLE control for electronic governors. (*Together with RA-20 Annunciator Module to help user monitor onsite and remote monitoring and warning.)

• Shipping Policy
• Payment Method
• Returns Policy

-Please leave us your full name, your telephone number and detailed address when ordering.
-We ship to your or Paypal address. Please make sure your and Paypal address is correct before you pay the order.
-We try our best to pack the products as good and safe as possible ,so they always arrive in a good condition.
-The items will be the shipped the same working day for the order before 10:00 a.m.
-The items will be the shipped the other working day for the order after 10:00 a.m.

-We accept PayPal only.
-All major credit cards are accepted through secure payment processor PayPal.
-Payment must be received within 4 business days of sale closing.

-We offer sophisticated products at a high technological level, with the highest possible quality and the most favorable price.
-With these parts you can replace your defective parts simply plug and play.
-Our warranty is valid for max. 24 months without mileage limitation.
-Please compare carefully with Photos or OE number before purchasing the part.
-Once a problem occurs with the purchased product, please do not hesitate to let us know with messages,we will offer you refund or replacement.

OEM Part For the Following Models

GCU-20 Automatic Engine & Generator Control Unit has many useful functions like annunciator alarm output and selectable EM81 / EM121 MPU signal for speed sensing. It\'s suitable for pump engine control. GCU-20 also provide IDLE control for electronic governors. (*Together with RA-20 Annunciator Module to help user monitor onsite and remote monitoring and warning.)

• Shipping Policy
• Payment Method
• Returns Policy

-Please leave us your full name, your telephone number and detailed address when ordering.
-We ship to your or Paypal address. Please make sure your and Paypal address is correct before you pay the order.
-We try our best to pack the products as good and safe as possible ,so they always arrive in a good condition.

-We accept PayPal only.
-All major credit cards are accepted through secure payment processor PayPal.
-Payment must be received within 4 business days of sale closing.

-We offer sophisticated products at a high technological level, with the highest possible quality and the most favorable price.
-With these parts you can replace your defective parts simply plug and play.
-Our warranty is valid for max. 24 months without mileage limitation.
-Please compare carefully with Photos or OE number before purchasing the part.
-Once a problem occurs with the purchased product, please do not hesitate to let us know with messages,we will offer you refund or replacement.

On Jan 12, 2026 at 01:54:08 PST, seller added the following information: