Bosch Screw Set Drive Unit Narrow BDU31YY BDU34YY BDU38YY - The smart system

Bosch Screw Set Drive Unit Narrow BDU31YY BDU34YY BDU38YY - The smart system

$8.00
SKU: EB11.900.010
Quantity:
In stock
Pickup available at Stage 21 Bikes Usually ready in 24 hours

Bosch Screw Set Drive Unit Narrow BDU31YY BDU34YY BDU38YY - The smart system

Stage 21 Bikes

Pickup available, usually ready in 24 hours

23582 Moulton Parkway
#111
Laguna Woods CA 92637
United States

+19497163363

This screw set is a narrow drive unit mounting hardware, designed for Bosch ebike motors. It fits Bosch drive units BDU31YY, BDU34YY, and BDU38YY and comes new for reliable service.

Bosch Screw Set Drive Unit Narrow For BDU31YY BDU34YY BDU38YY New


What you get


Two high-strength mounting screws engineered for Bosch drive units. This narrow screw set is a direct, factory-style replacement that preserves correct spacing and alignment for reliable motor mounting on BDU31YY, BDU34YY, and BDU38YY.

Key benefits


  • Precise fit for Bosch narrow-drive applications
  • Durable steel with protective finish for long life
  • Maintains shaft alignment to improve performance and avoid vibration
  • Simple replacement that fits into existing mounting points

Installation tips


Consult your Bosch service manual for torque specs. Clean threads before installation, apply a light thread locker if recommended, and torque to the manufacturer’s specification to ensure secure mounting without over-tightening.

Who it’s for


Perfect for DIY bike maintenance, e-bike commuters, and workshop pros who service Bosch drive systems. Keep a spare set on hand to reduce downtime during field repairs.

FREE Shipping

Free shipping within USA on all orders over $99.

International Orders

For non-oversized packages (almost everything except entire bikes) we ship internationally via the US Postal Service (Priority and Express Mail).

For larger packages we ship via UPS. Time in transit will vary, but most orders will arrive within 5-7 business days after dispatch.

We are unable to provide any currency conversion information, as your bank or credit card will have its own methodology for the exchange rate. You can use websites such as XE.com to get a good calculation as to current exchange rates.

FREE Shipping

Free shipping within USA on all orders over $99.

International Orders

For non-oversized packages (almost everything except entire bikes) we ship internationally via the US Postal Service (Priority and Express Mail).

For larger packages we ship via UPS. Time in transit will vary, but most orders will arrive within 5-7 business days after dispatch.

We are unable to provide any currency conversion information, as your bank or credit card will have its own methodology for the exchange rate. You can use websites such as XE.com to get a good calculation as to current exchange rates.

Got Questions?

We can help. Reach us directly at Stage 21.

Toll Free: 855-949-7433
Local: 949-716-3363

info@stage21bikes.com

STORE HOURS

Mon through Fri 10AM - 5PM
Saturday 12PM - 4PM

Got Questions?

We can help. Reach us directly at Stage 21.

Toll Free: 855-949-7433
Local: 949-716-3363

info@stage21bikes.com

STORE HOURS

Mon through Fri 10AM - 5PM
Saturday 12PM - 4PM

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Your Payment is Secure

We use a PCI level 1 compliant system for credit card processing which means that it adheres to the highest standards in the world on server compliance, payment processing, and information privacy.