Delta®

Stabilization Plate

Model#: RP37490
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Delta®
Stabilization Plate
Model#: RP37490
List Price: $29.40
Online Price: $23.52
Free Ground Shipping All Orders $49+
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Find local Delta® installers.
Documents & Specs
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Installation Information
Overall Height (in.) :
1/2
Valve Type:
NA
REVIEWS
Rated 1 out of 5 by from Useless! Drive 15 miles to local Lowes. Buy the faucet. Drive home. Open instructions. Section 1, '*If you are installing the faucet on a stainless steel or a thin sink use RP37490 stabilization plate NOT SUPPLIED WITH FAUCET." REALLY!? What use is that!
Date published: 2024-01-15
Rated 1 out of 5 by from Why wasn't item mentioned under "You may need:"?! I bought a DELTA Foundations Single Handle Kitchen Faucet with a Side Sprayer unit that sits IN the escutcheon (Model No. 10902LF). My kitchen sink is the original porcelain sink from the 1950's, and the Locknuts provided by DELTA are BARELY big enough to secure the fixture under the counter. The installation manual included with the product is INCOMPLETE (it has no instructions that match my Model No.re Side Sprayer installation), and, INADEQUATE (missing information about this Stabilization Plate). Page 1 of the manual has a footer that says, "You may need:" and then it lists additional items that are not listed on the box, like silicone, for example. What it does NOT include is any reference to this Stabilization Plate, which, as it turns out, is required for my old porcelain sink, as the Locknuts (included) are BARELY large enough to secure the fixture solidly in place. Consequently, they will fail much sooner than later. Yes, I can detach the supply lines and feed them through the stabilization plate, but, detaching the "quick connect" sprayer hose will be next to impossible from underneath the double basin, porcelain sink. Because DELTA missed an opportunity to ADVISE consumers that this Stabilization Plate might solve the problem of the supplied Locknuts being TOO SMALL, I have not seen the item to be able to review its performance. So, I have to answer, "No" regarding any recommendation.
Date published: 2022-08-24
Rated 4 out of 5 by from Works as designed. It does what it is designed to do by stiffening a stainless steel sink.
Date published: 2021-06-21
Rated 5 out of 5 by from Works as described [This review was collected as part of a promotion.] Works effectively. Installs underneath the pre-stamped holes in stainless sinks to provide a solid base when installing a faucet.
Date published: 2016-12-07
Rated 5 out of 5 by from fit perfectly Solved my problem of shaky faucet
Date published: 2013-06-19
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Q&A

i am going to order a addison 9192..i have a new 3 hole std. kohler sink will the stab. plate be ok that is supplied with 9192?

Asked by: doug
Thank you for your question. Delta Faucet model # 9192T-DST does included a stablization plate that must be used for the faucet to operate properly. As long as you have a standard sink, the plate should fit. If you need to, the plate can be cut apart to match your holes.
Answered by: Delta1
Date published: 2024-03-28

Hi, will this work with the Theodora faucet, 18804Z-SP-DST?

Asked by: 0000
Hi Valued Customer, Thank you for your question. The purpose of the Delta RP37490 stabilization plate is to keep your faucet stable if your faucet is unsteady. It is installed under the sink. Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358 customerservice@deltafaucet.com
Answered by: Themar
Date published: 2025-08-23

What are the overall dimensions of this part (#RP37490), especially the width. I assume that we can cut it.

Asked by: JERRY
Hi Valued Customer, Thank you for your question regarding our Delta Faucet. Please accept our sincere apology for the inconvenience you are experiencing. We will be happy to assist you in resolving this issue as quickly as possible. The Delta Stabilization Plate RP374901 has 1 3/8" (35 mm) on 4" (102 mm) centers. If you need to, the plate can be cut to match your holes. Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358 customerservice@deltafaucet.com
Answered by: Themar
Date published: 2025-01-23

Can this be installed on our new 16 gage stainless steel sink without ordering the The Deck Aid?

Asked by: Russell
Hi Russell, Thank you for your question about the Delta Faucet RP37490 Stabilization Plate. We have redesigned some of the existing parts on the faucets and made the stabilization plate mostly unnecessary. If the sink flexes and causes the mounting nut to loosen, the stabilization plate may be needed. Please reach out with any additional questions! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-06-04

Will Stabilization Plate MODEL#: RP37490 work on a Model # 400-DST-L?

Asked by: Gregg
Hi Gregg, Thanks for your question regarding RP37490! Yes, this will work with model 400-DSL-L; however, the stabilization plate may need to be cut or modified. Please feel free to contact us with any questions or for further assistance. Best Regards, Emma Digital Communications Specialist
Answered by: Customer Service
Date published: 2023-07-28

Will this plate work for the Delta Kate faucet?

Asked by: Karen
Hi Karen, Thank you for contacting us at Delta Faucet! Please accept our sincere apology for the inconvenience you are experiencing. Here is what we can do to resolve your issue for you. Yes, this Delta Faucet model RP37490 stabilization plate will work with model 16970-SD-DST Kate pull-down kitchen faucet. Please contact us directly by phone at 1-800-345-3358 or email at customerservice@deltafaucet.com if further assistance is needed at this time.   We appreciate your loyalty to Delta Faucet Company. Best Regards, Tim Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

Will this stabilization plate be compatible with the Delta Grant faucet?

Asked by: Babs
Hello Babs! Thank you for your question and we are happy to help! The Delta Grant Single-Handle Pull-Out Kitchen Faucet MODEL#: 16953-DST uses the escutcheon plate RP44645 and the base plate RP44650. With any further questions or concerns, please do not hesitate to reach out to us directly. Thank you for being a loyal Delta customer. Best Regards, Carrie
Answered by: Delta7
Date published: 2024-03-28

What is the thickness of this part

Asked by: JW33
Heloo, JW33! Thank you for contacting us at Delta Faucet! Please accept our sincere apology for the inconvenience you are experiencing. Here is what we can do to resolve your issue for you. This Delta Faucet RP37490 stabilization plate has a thickness of 3/4". Please contact us directly by phone at 1-800-345-3358 or email at customerservice@deltafaucet.com if further assistance is needed at this time.   We appreciate your loyalty to Delta Faucet Company. Best Regards, Tim
Answered by: Delta
Date published: 2024-03-28

Does this stabilization plate work with Delta Pilar 4380-DST?

Asked by: Tyme
Hi Tyme, Thank you for contacting Delta Faucet Company! Please accept our sincere apology for the inconvenience you are experiencing. Here is what we can do to resolve your issue for you. Our Delta Faucet Stabilization Plate MODEL#: RP37490 will work with all of our current Delta Kitchen Faucets, including the 4380-DST. Thank you for being a loyal Delta Faucet customer. We appreciate your business and look forward to continuing to serve you. Please contact us back with any further questions. Best Regards, Nicole
Answered by: Customer Service
Date published: 2024-03-28

I have a delta faucet with the 3 hole escution kit. Will i still need the stabilization plate on my stainless steel sink, orwill the escution kit provide enough support?

Asked by: Tony
Hi Anthony, thank you for your interest in the RP37490! The stabilization plate is to keep your faucet stable if your faucet is unsteady. Please contact us directly if you have any questions or need additional assistance. Best Regards, Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

Does this install under the sink top or between the faucet base and sink top?

Asked by: fatfool
Hello fatfool, Thank you for contacting Delta Faucet Company! I am sorry this information was not readily available, and I am happy to help you! Our Delta Faucet DELTA® Stabilization Plate MODEL#: RP37490 is installed under the deck to stabilize the faucet in the sink. Thank you for being a loyal Delta customer. Please contact us back for any further questions. Best Regards, Nicole
Answered by: Delta7
Date published: 2024-03-28

Is the mounting plate/isolation plate RP37490 needed for faucet installation through a 3/4 inch Dekton countertop? What is considered a “thin deck”?

Asked by: Remodeling kitchen
Hello Valued Customer, Thank you for contacting Delta Faucet Company! The stabilization plate is not needed for most installations as the shanks are fully threaded on our faucets. For example the stabilization plate will help a faucet be more stable on a sink that is an inch thick. We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Communications Specialist
Answered by: Delta
Date published: 2025-04-04

tWill this Stabilization Plate Model#: RP37490 , work with Delta faucet 9182-PR-DST ? Thanks

Asked by: BigD
Hello, BigD! Thank you for contacting Delta Faucet Company! I am sorry this information was not readily available, and I am happy to help you! Our Delta Faucet DELTA® Stabilization Plate MODEL#: RP37490 will be compatible with model 9182-PR-DST but it is not required. The stabilization plate is only recommended with a thin deck installation to ensure the security of the faucet and to allow it to stay tightened properly. Thank you for being a loyal Delta customer. Please feel free to call, email, or message us on social if there is anything else you need. Best Regards, Themar
Answered by: Delta
Date published: 2024-03-28

I have model 19875Z-SD-DST faucet. It has part number RP37490 thin deck aid. This part has a foam material along underside of part. Is this foam needed? It may leave small space between plate and deck but may add in keeping plate stable.

Asked by: sys72db
Hi Valued Customer, Thank you for your question! The foam is supposed to be removed. Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist (800) 345-3358 customerservice@deltafaucet.com
Answered by: Themar
Date published: 2025-04-10

How does this deck plate stabilizer fit? Under sink or on top under cover plate?

Asked by: Marshall
Hi Valued Customer, Thank you for your question, please accept our sincere apology for the inconvenience you are experiencing. We will be happy to assist you in resolving this issue as quickly as possible. It is installed under the sink. Please feel free to contact us directly for technical information at 800-345-3358. We are available Monday through Friday from 8 a.m. to 8 p.m. and Saturdays from 9 a.m. to 6 p.m. Eastern Standard Time. Thank you for being a loyal Delta Faucet customer. Best Regards, Themar Digital Communications Specialist
Answered by: Themar
Date published: 2025-10-17

What is the recommended gauge sink that would need this stabilizer?

Asked by: Gary 261
Hello Customer! Thank you for your question and we are happy to help. The Delta RP37490 is intended to help stabilize the installation when using a thin sink or deck. With any further questions or concerns, please do not hesitate to reach out to us again. Best Regards, Carrie
Answered by: Customer Service
Date published: 2024-06-21

Bought a new Delta faucet at home depot, full retail, but it didn't have the stabilization plate for my stainless steel sink. I can't seem to find one at your listed dealers nor retail suppliers. I need a plate please! Doesn't my warranty cover RP37490?

Asked by: BethP
Hi BethP, Thank you for your question about the Delta Faucet RP37490 Stabilization Plate. I am sorry this information was not readily available, and I am happy to help! The thin deck aid is not included with all faucet models. It is optional to provide stiffness to thin gauge sinks. You can purchase Delta Faucet products at many local dealers and internet sites. If a dealer does not carry a specific item in stock, they should still be able to place an order for you. I recommend using our store locator. https://www.deltafaucet.com/where-to-buy Please contact us directly if you have any questions or need additional assistance. We appreciate your business and look forward to continuing to serve you! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

Is this available anywhere, or is there a substitute part that can be used? (I am not finding it available at Lowe's or other places your website lists as available)

Asked by: Anonymous
Hi Anonymous, Thank you for your question about the Delta Faucet RP37490 Stabilization Plate. I am sorry this information was not readily available, and I am happy to help! You can purchase Delta Faucet products at many local dealers and internet sites. If a dealer does not carry a specific item in stock, they should still be able to place an order for you. I recommend using the store locator on our Delta website. https://www.deltafaucet.com/where-to-buy Please contact us directly if you have any questions or need additional assistance. Thank you for being a loyal Delta Faucet customer. We appreciate your business and look forward to continuing to serve you! Best Regards, Bryan Digital Communications Specialist
Answered by: Customer Service
Date published: 2024-03-28

Will the stabilization plate RP37490 work well with the Essa bar faucet model 9913 ?

Asked by: Jbikes
Hi Jbikes! Thank you for your question! I will be happy to help. Yes, the stabilization plate can be used but it may need to be cut or modified to fit right. Best Regards, Tim
Answered by: Delta
Date published: 2024-03-28

I would like to anchor the stabilization plate inside the cabinet, to make sure that my faucet does not rock front-and-back. I wonder what material the stabilization plate is made of: steel? plastic? Will it bend? Will it be possible to drill and tap?

Asked by: ilya
Thank you for your question, ilya! The RP37490 stabilization plate is plastic. The plate can not be bent, but can be drilled. Best Regards, Benjamin
Answered by: Benjamin
Date published: 2024-03-28

is the RP37490 designed to work with the Delta 9197 faucet

Asked by: Cappy
Hi Cappy, thank you for contacting Delta Faucet Company! Yes, you can use our RP37490 stabilization plate with any of our faucets. The RP37490 will add another 1/2" inch to the countertop. We appreciate your inquiry. Please reach out directly if you have further questions! Best Regards, Kyra Digital Engagement Specialist
Answered by: Customer Service
Date published: 2023-09-14

Will this stabilization plate work with a Lorraine kitchen faucet model 21716LF

Asked by: JJ44
Hi JJ44! Thank you for your question and we are happy to help. The Delta RP37490 works with the Delta 4140-DST. With any further questions or concerns, please do not hesitate to reach out to us again. Best Regards, Carrie
Answered by: Customer Service
Date published: 2024-10-14

Does the Talbott Single Handle Kitchen Faucet, Model # 16968-SSSD-DST include the stabilization plate? It will be installed on a stainless steel sink. Thanks, Paul

Asked by: Paul
Hello Paul, Thank you for your question! I am happy to help you! Our Delta Faucet stabilization plate RP37490 does not come with our faucets, but it is a part that can be ordered separately. I have attached a link below to the Where To Buy section on our website. https://www.deltafaucet.com/where-to-buy Please contact us back for any further questions. Best Regards, Nicole
Answered by: Delta7
Date published: 2024-03-28

How do I order this ?

Asked by: Diane
Hi Diane, Thank you for contacting Delta Faucet Company! Please accept our sincere apology for the inconvenience you are experiencing. Here is what we can do to resolve your issue for you. Our Delta Faucet Stabilization Plate MODEL#: RP37490 can be purchased online or locally, I have attached a link below to the Where To Buy section on our website. https://www.deltafaucet.com/where-to-buy Thank you for being a loyal Delta Faucet customer. We appreciate your business and look forward to continuing to serve you. Please contact us back with any further questions. Best Regards, Nicole
Answered by: Customer Service
Date published: 2024-03-28

I am installing the DeLuca model 19912Z-BLSD-DST to butcher block center top with single hole. Do I need the RP37490 for this?

Asked by: Txcajun409
Hello Txcajun409, Thank you for your question! We are happy to help. The RP37490 stabilization plate is used for a thin gauge, usually stainless steel, sink. Butcher block would likely be thicker and not require the stabilization plate. Please reach out directly if you have any questions or need additional assistance. Best regards, Bryan
Answered by: Delta Faucet
Date published: 2024-03-28

I need this plate with only one hole in the middle… I need it to cover up the other holes. Where can I find that? 

Asked by: Dhouse99
Hello Dhouse99! Thank you for your question! I am happy to help. The Delta 3 hole escutcheon for model 9113t-BL-DST is part number RP47274BL. Best Regards, Antoine
Answered by: Delta7
Date published: 2020-11-04

I bought a Delta 106557 and would like to use the single hole installation, but the package didn't come with a Thin Deck Aid. I have a farm style sink and will be drilling the hole through a 1 1/2" butcher block. Do I need the Deck Aid stabilization ?

Asked by: JeffTuttle58
Hello JeffTuttle58, Thank you for your question! We apologize that the information you are searching for was not readily available and I am happy to assist you! We thank you for being a loyal Delta Faucet customer. The Delta Faucet part RP37490 Stabilization Plate is recommended with a thin deck installation to ensure the security of the faucet and to allow it to stay tightened properly. Please contact us back directly via email with any further questions. Best Regards, Skyler
Answered by: Delta7
Date published: 2024-03-28
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