Home / Honeywell / Honeywell HVAC Field Devices (valves, actuators, sensors) / M4185B1009/U Series 41 and 81 Modutrol IV™ Motor

Available on request

Honeywell – M4185B1009/U Series 41 and 81 Modutrol IV™ Motor

MPN: M4185B1009/U · Brand: Honeywell

Price on request

Discontinued by Honeywell — we can still source the original M4185B1009/U (new, used or refurbished, subject to availability). Request a quote below.

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12-month warranty (new) · 3-month (used/refurbished)

30-day returns, no restocking fee on unused parts

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Quick facts

Availability	Confirmed on request
Category	Honeywell HVAC Field Devices (valves, actuators, sensors)
Lifecycle	Discontinued
Warranty	12-month (new) · 3-month (used/refurbished)

Shipping & availability

Can I still buy the M4185B1009/U now that it is discontinued?

Yes. Honeywell has discontinued the M4185B1009/U, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.

When can M4185B1009/U be shipped?

M4185B1009/U is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up M4185B1009/U in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for M4185B1009/U and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for M4185B1009/U, subject to availability and destination.

Series 41 and 81 Modutrol IV™ motors are 2-position (line and low-voltage control, respectively) spring return motors. They are used to operate normally open (NO) or normally closed (NC) dampers or valves in applications where it is necessary or desirable to have the controlled element return to the starting position in the event of power failure or interruption.

Features & Benefits:

Fixed torque throughout the entire voltage range

Integral junction box provides NEMA 3 weather protection

Motor and circuitry operate from 24V AC; models available with factory installed transformer, or a field added internal transformer

Quick-connect terminals are standard (screw terminal adapter is available)

Adapter bracket for matching shaft height of older motors is available

Die-cast aluminum housing

Motors have auxiliary switch cams

Integral auxiliary switches are available factory mounted, or can be field added

Motors have dual shafts (slotted and tapped on both ends)

Nominal timing standard of 30 seconds (90° stroke), and 60 seconds (160° stroke); other timings available

Certifications:

UL Listed: File No. E4436, Guide No. XAPX for USA and Canada

U.S. Patents Pending

Honeywell M4185B1009/U — Series 41 and 81 Modutrol IV™ motors are 2-position (line and low-voltage control, respectively) spring return motors. Discontinued by Honeywell — no longer in the current range. PartnerPLC sources new, surplus and discontinued Honeywell parts — request a quote for price, condition and lead time.