will this pump fit the Moen dispenser model 3942BL?

I'm not sure. The pump did not fit the dispenser that came with our Bayhill CA87094SRS faucet. I called Moen 1-800-BUY-MOEN and they told me that the pumps are different for each model, and they sent us a replacement pump for FREE that fit our model. Your faucet and soap pump are guaranteed for as long as you own them, though they will ask if you are the original owner.

Does it work in Moen 3942?

Hello and thank you for your interest in Moen products. The Moen 139221 Soap Pump is not compatible with the 3942 soap dispenser. The 3942 soap dispenser will require the 344111 underdeck service kit for the replacement pump. If you have additional questions, please feel free to call us at 800-289-6636. Our business hours are 8:00 a.m.-7:00 p.m. Eastern Time Monday through Friday.

Is this part universal, or does it only fit a certain Moen dispenser?

It is not universal - though Moen does make several units that this pump fits. The best thing you can do is find the model number of your faucet/soap dispenser, look it up on Moen's site and compare the part numbers on the diagram of your unit.

Will this pump fit model series 87770?

I do not know. Check on the Moen website

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Moen 139221 Replacement Pump Assembly

Product ID: 9389494

Details

Brand
Moen
Color
White
Material
Plastic
Material Type Free
BPA Free
Product Dimensions
11.75"L x 1"W

🧴Reliable liquid soap dispensing

♻️BPA-free safe plastic

⚙️Precision-fit for Moen 3914

AED 119

Duties & taxes included

In stock

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Description

🧼 Upgrade your soap game with Moen’s precision pump—because details matter!

SAFE SUSTAINABLE - Crafted from BPA-free plastic, ensuring your soap stays pure and your home eco-conscious.
TRUSTED MOEN QUALITY - Backed by Moen’s legacy of durability and high-performance—because your home deserves the best.
TAILORED COMPATIBILITY - Engineered exclusively for Moen 3914 soap dispensers—no guesswork, just perfect fit.
COMPACT LIGHTWEIGHT DESIGN - Slim 11.75" length and featherlight 0.01 oz weight for seamless countertop elegance.
EFFORTLESS MANUAL INSTALLATION - Slip it in easily without tools or suction mounts—upgrade your dispenser in seconds.

The Moen 139221 Replacement Pump Assembly is a genuine, BPA-free plastic pump designed exclusively for the Moen 3914 soap dispenser. Measuring 11.75 inches in length and weighing just 0.01 ounces, it offers reliable manual soap dispensing with easy installation—no tools required. Backed by Moen’s trusted quality, this compact pump ensures safe, durable, and efficient liquid soap delivery for your kitchen or bathroom.

Specifications

ASIN	B009HELC2U
Best Sellers Rank	#386,322 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #830 in Bathroom Countertop Soap Dispensers
Brand Name	Moen
Color	White
Customer Reviews	3.9 3.9 out of 5 stars (281)
Global Trade Identification Number	00721866674951
Item Dimensions L x W x H	11.75"L x 1"W x 4"H
Item Highlight	For Moen 3914 Soap Dispenser
Item Type Name	Liquid Soap Dispenser Pump, Pump Only,
Item Weight	2.56 ounces
Manufacturer	Moen Incorporated
Manufacturer Part Number	139221
Manufacturer Warranty Description	One year limited.
Material Type	Plastic
Material Type Free	BPA Free
Model Number	139221
Number of Items	1
Number of Packs	1
Number of Sets	1
Shape	Soap
UPC	721866674951
Unit Count	1 Count

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The product quality is outstanding. Exactly what I needed for my work.

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