bing tracking image
  1. RV Waste Valves
  2. LaSalle Bristol
  3. Single Waste Valve - Manual
  4. 3 In Valve Body
  5. Straight Valve
  6. Stationary Valve
Bristol Waste Valve for RV Black Water Tank - 3" Diameter - Hub to Spigot

Bristol Waste Valve for RV Black Water Tank - 3" Diameter - Hub to Spigot

Item # 34466N4AB
lowest price pledge
Our Price: $50.39
RV Waste Valves
Orders above $99 qualify for Free Shipping
Shipping Weight: 1.28 lbs
LaSalle Bristol Straight Valve - 34466N4AB
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images


Need help with installation?
Locate installers near me
Lowest Prices for the best rv waste valves from LaSalle Bristol. Bristol Waste Valve for RV Black Water Tank - 3" Diameter - Hub to Spigot part number 34466N4AB can be ordered online at or call 1-636-306-4830 for expert service.
  • All Info
  • Reviews (11)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

LaSalle Bristol RV Waste Valves - 34466N4AB

  • Single Waste Valve - Manual
  • 3 In Valve Body
  • Straight Valve
  • LaSalle Bristol
  • Stationary Valve


  • Replacement valve for your RV's black-water tank
  • 3" Diameter passage allows wastewater to travel freely when valve is open
  • 3" Hub slides onto sewer pipe
  • 3" Spigot slides into sewer pipe
  • ABS solvent cement (3447530889 - sold separately) required for installation
  • Made in the USA

66N4AB LaSalle Bristol Waste Valve for RV Black Water Tank - Termination Valve - 3" Diameter - Hub to Spigot

Video of Bristol Waste Valve for RV Black Water Tank - 3" Diameter - Hub to Spigot

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for LaSalle Bristol RV Sewer - Waste Valves - 34466N4AB Review

Speaker 1: Today we're taking a look at the Bristol Waste Valve for RV Black Water Tanks. This unit adds or replaces a valve for your RV's black water tank. It's made from a durable AVS plastic construction, features a three inch diameter passage which allows waste water to travel freely when the value is open. The valve easily opens and closes with the V handle, which is threaded on to a metal shaft, so you can see there how that opens and closes the valve, really nice smooth design, and this is a V handle which gives you a nice easy grip design, so it's got those curved edges on the side there.The unit does feature the appropriate seals to ensure leak proof performance. The three inch hub slides on to a sewer pipe, so the enter diameter here is about three and a half inches, and on this end we have the three inch spicket which slides into a sewer piper and that gives us an outer diameter of three and a half inches. ABS Solvent Cement is required for installation and it is sold separately.

You can find it at and this product is made in the USA. That's going to do it for today's look at the Bristol Waste Valve for RV Black Water Tanks.

Customer Reviews

Bristol Waste Valve for RV Black Water Tank - 3" Diameter - Hub to Spigot - 34466N4AB

Average Customer Rating:  4.7 out of 5 stars   (11 Customer Reviews)


Works very smoothly. The OEM valves are crap and 2 of the three originals leaked.


products are excellent, shipping was quick but expensive for three day shipping. Otherwise would have been 5 stars.


Fast delivery, great customer service. I appreciate their great inventory of products.


Arrived as promised. Great product. Sol id.


Installed this today and it is working fine so far. Appreciated the salesperson’s help in determining what part was needed.


You guys did great getting our products here on we can go camping! LOL


Very helpful personnel, prompt delivery


Although I have not installed it yet, it is exactly what I needed


Have not used it yet. Plan to very soon. Check back later..

by: 01/06/2022



See what our Experts say about this LaSalle Bristol RV Waste Valves

  • Is There a Specific Length of Cable Needed For Spigot to Hub Black Water Valve
    There actually isn't any way for us to know what length of cable you need when replacing the black water valve on your 2018 Montana Legacy 3130RE so you would need to either take some measurements or make an educated guess. The good news is there are plenty of options for length: - LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank - Spigot to Hub - 36" Cable # 34466N4AB36GM - 48" Cable # 34466N4AB48GMA - 72" Cable # 34466N4AB72GMA - 96" Cable # 34466N4AB96GMA - 120" Cable...
    view full answer...
  • Can You Cut To Length The LaSalle Bristol Cable-Actuated RV Waste Valve
    The LaSalle Bristol Cable-Actuated RV Waste Valve, # 34466N4AB120GM is not designed to be trimmed. However, there are multiple lengths available: - 36" Cable # 34466N4AB36GM - 48" Cable # 34466N4AB48GMA - 72" Cable # 34466N4AB72GMA - 96" Cable # 34466N4AB96GMA - 120" Cable # 34466N4AB120GM Make sure you use LaSalle Bristol ABS Solvent Cement # 3447530889 to secure the connection.
    view full answer...
  • Recommended Black Tank Waste Valve Replacement For Tight Areas
    Since the placement of the blank waste valve handle makes it hard to operate I recommend switching out the valve with a cable actuated valve that will allow you to place the handle exactly where you need it. The LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank # 34466N4AB36GM comes with a 36" cable that will allow you to easily activate your valve without having to fight the tire. The valve can easily be removed from the fittings by removing the four bolts through it...
    view full answer...
  • Availability of LaSalle Bristol Waste Valve with Near 9 Foot Long Cable
    LaSalle Bristol makes a waste valve similar to the # 34466N4AB36GM which has a 120 inch long cable as part number # 34466N4AB120GM. 120 inches is 10 feet which is as close as we can get to the size you are looking for. The measurement is from the base of the valve to the end of the black outside tubing.
    view full answer...
  • Is There a Replacement 48" Cable for LaSalle Bristol Waste Valve
    I checked with LaSalle Bristol and they don't offer just the replacement cable. If the cable is broke you will need to replace the entire waste valve for which we offer part # 34466N4AB48GMA for black water or part # 34466N11AB48GMA for gray water. If you don't want to mess with fitting new pipes you can just un-bolt the valve from the flange and slide the new one in once the old is out.
    view full answer...
  • Will Shorter Cable Length for RV Waste Valve Make Operation Smoother
    The straighter and shorter you can make the dump cables they smoother they will operate to a certain extent. So if you can get away with the shorter 36 inch long cable version part # 34466N4AB36GM instead of the # 34466N11AB72GMA that you referenced this would work well.
    view full answer...
  • Broken Cable on LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank
    The plan you have sounds logical, I contacted the manufacturer to inquire about any additional information they may have that would assist in addressing the issue with your LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank, # 34466N4AB72GMA. They do have something to add, however, because of the limitations you have, obstructive access due to installation I am uncertain this will work. I will relay what they explained in case you can use. Please note the attached images....
    view full answer...
    Image 1 for Image 2 for Image 3 for Image 4 for
  • Black Water Waste Valve Replacement
    LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank - Spigot to Hub - 72" Cable Item # 34466N4AB72GMA is the replacement for black water tank valves and comes with the extension cable you were interested in to help open your valve if it's in a hard to reach place.
    view full answer...
  • How to Remove RV Sewer Pipes From Cable Actuated Waste Valve?
    In order to install a new Cable Actuator RV Waste Valve # 34466N4AB96GMA, you're likely going to need to cut off the pipes at the spigot and hub in order to install the new waste valve. It's more than likely that ABS sealant was used to weld the pipes to the connections; you can try using concentrated heat (350 degrees Fahrenheit) or acetone, but it's unlikely that those are going to loosen the pipes enough to pull them out of the connections. During this process you may need to replace...
    view full answer...
  • Replacing Valterra Valve with LaSalle Bristol Cable-Actuated RV Waste Valve
    What I think you are asking is if you can replace within a current system, a valve assembly of one manufacturer with that of another. Yes, the fitment of valve assemblies is industry standard in dimensions. A Valterra 3" can be replaced with a LaSalle Bristol such as the # 34466N4AB72GMA. If you are asking about interchanging individual components within the assembly, we cannot guarantee fitment within that exchange.
    view full answer...
  • Can Center Section of Lasalle Bristol Tank Valve Replace Older Valve Setup
    It would be possible if you are willing to remove just the center section of the # 34466N4AB96GMA and what you have now. The center portion would bolt right up to the flanges you have currently.
    view full answer...
  • How To Tighten A Loose Black Water Valve Cable On A LaSalle Bristol Cable-Actuated Waste Valve
    In order to fix your loose cable on your LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank # 34466N4AB36GM, you will need to tighten the set screw that holds the cable to the valve stem. To do this. you're going to need to first loosen the set screw at the end of the cable housing (shown below). After this is done, you will then need to slide the valve actuator body off of the valve body itself to expose a yet another set screw. This will be located on the opposite end...
    view full answer...
    Image 1 for Image 2 for
  • Replacement Waste Valves And Cables For Black And Gray Tanks On A 2019 Jayco North Point 387RDFS
    I contacted Jayco on what flush valves and cable lengths you have on your 2019 Jayco North Point Fifth Wheel. Your black water valve cable is 60" cable which we only offer in a 72". LaSalle Bristol Cable-Actuated RV Waste Valve - Black Water - Item # 34466N4AB72GMA. For your two gray water valves, the front tank valve cable is 72" which is the LaSalle Bristol Cable-Actuated RV Waste Valve for Gray Water Tank Item # 34466N11AB72GMA. Your rear tank valve cable is 87" which we only offer...
    view full answer...
  • Are the Valves Inside the LaSalle Bristol Cable-Actuated RV Waste Valves All the Same
    Yes, the actual valve is the same for all of the LaSalle Bristol Cable-Actuated RV Waste Valves whether they have a spigot to spigot connection like part # 34466N4BB96GM or spigot to hub connection part # 34466N4AB96GMA. That said, you need to pay attention to the actual valve size as there is options for both 1-1/2" (Gray Water) and 3" (Black Water). The spigot and hub adapters can simply be tossed if you only need the actual valve. The mounting bolt pattern is an industry standard so...
    view full answer...
  • Installation of Bristol Waste Valve Extension Rod
    The Extension Rod for LaSalle Bristol Waste Valve - 6" Long # 34466SP1106 will thread onto the cable rod on your LaSalle Bristol Cable Actuated Waste Valve like the # 34466N4AB96GMA. The extension rod has MPT threads to fit onto the valve handle and the FPT end threads onto the blade rod inside the cable. We don't have a video of this installation as of yet, but it will be a fairly straightforward process.
    view full answer...
  • Replacing the Blackwater Waste Valve and Cable on a 2018 Heartland RV Bighorn Fifth Wheel
    If you're looking to replace your blackwater waste valve and cable, then I recommend going with an actuated cable valve. For these, LaSalle Bristol offers two options while Valterra offers none. Which of the two Bristols you choose will depend on your current setup. The first, part # 34466N4BB72GM, has a 72" cable and a spigot to spigot connection. The second, part # 34466N4AB36GM, has a 36" cable and a spigot to hub connection. You will need to review your setup to find which connection...
    view full answer...
  • Replacement Black Water Tank valve for 2013 Arctic Fox
    If the sewer line you have is a 3 inch sewer line that slips into the both sides of the valve you have now the part # 34466N4BB72GM will fit and work well. You will need to use ABS solvent like # 3447530889 to install it as well. If instead one side fits into the valve and the other fits over you'd want the part # 34466N4AB36GM.
    view full answer...
  • Troubleshooting a Stuck LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank
    You can try removing the screw, but I don't believe that's the issue. It sounds like your cable might be broken or the actual valve has just locked up or "frozen". There is currently not a replacement cable available for the LaSalle Bristol Waste Valves. You may be able to spray it down with some lubricating grease or even a cooking spray like Pam to try to see if that might allow it to loosen itself up. If there are 4 screws holding the front hub onto the valve as you can see in the...
    view full answer...
  • Black Tank Valve Is Stuck Open
    Your black tank valve could be stuck for a couple of reasons. At the valve there could be an ice jam preventing the valve door from closing fully. There could be something else blocking the valve door. Let's say your grandson dropped some Hot Wheels into the toilet and now they are stuck at the valve. Another possibility is that the valve door or pull cable are stuck in some way. I would suggest forcing as much lubricant as possible into the cable and around the valve door to see if you...
    view full answer...
  • Is ABS Cement Needed to Install RV Waste Valve for Black Water Tank 34466N4AB48GMA
    Your valve is likely glued on with ABS cement already, which means you will need to go ahead and cut off your existing pipe line, and utilize ABS cement for a tight seal when installing the new waste valve you referred to: - LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank - Spigot to Hub - 48" Cable # 34466N4AB48GMA - LaSalle Bristol ABS Solvent Cement # 3447530889
    view full answer...
  • Spigot to Hub Black Water Tank Valve With 72 Inch Cable
    Thank you for the photos! Based on that it looks like you have a spigot to hub black water tank valve, like you mentioned, where the hub end fits over one pipe and the spigot end fits into the other pipe. So for a spigot to hub replacement valve with a 72 inch cable you will need the following: - LaSalle Bristol Cable-Actuated RV Waste Valve for Black Water Tank - Spigot to Hub - 72" Cable # 34466N4AB72GMA Then to complete the install you will just need the LaSalle Bristol ABS Solvent...
    view full answer...
    Image 1 for Image 2 for
  • How to Choose Correct Replacement Black Tank Waste Valve for 2016 Dynamax REV 24TB Motorhome
    Waste valves and cables are universal fits so while I don't know what came on your motorhome, I can still help you out! The standard waste valve size for the black tank is 3" and you'll be looking at either hub or spigot connections. A hub connection is the outer piece while the spigot is the inner piece. So all you need to do to replace your current black tank waste valve is determine what connections you need (hubs and spigots) and then get a cable length that will reach from the waste...
    view full answer...
  • Replacement Handle for Gray Water Dump Valve
    If your gray water dump valve is a cable operated LaSalle Bristol # 34466N11AB36GM, # 34466N11AB48GMA, # 34466N11AB60GM, # 34466N11AB72GMA, # 34466N11AB96GMA, or # 34466N4AB96GMA, the correct replacement handle would be part # 34490CMA1G, which is the only replacement gray water tank dump valve handle for a cable operated valve we offer. If your valve is operated by a threaded rod and is a LaSalle Bristol model, the # 34466IHANDLEGRY you'd looked at would work well. If you can get the...
    view full answer...
  • Which RV Waste Valve Body w/ Flexible Cable Can be Trimmed Down Shorter
    We had one customer try to cut the cable of the LaSalle valve # 34466N4AB36GM and they said they weren't able to reassemble the cable after doing so as the set screw wouldn't get tight enough so I would not recommend this valve if your plan is to cut it. We know the Valterra # TC372 can be cut down and work well so this would be your best option.
    view full answer...

< Previous

Do you have a question about this RV Waste Valve?

  • Why

    At we guarantee:
  • Highest quality rv waste valves for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate rv waste valve information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Cole B
Installed by:
Cole B
Employee Amanda M
Edited by:
Amanda M
Employee Halie H
Written by:
Halie H
Employee Cody B
Updated by:
Cody B

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.