Account Login
Gift Cards
Track Order
Help Center

B&M Cast Aluminum Deep Transmission Pan GM TH400


made in usa

Product Q&A
View Now
Click image to zoom
Cast Aluminum Deep Transmission Pan GM TH400
Cast Aluminum Deep Transmission Pan
  • GM TH400
  • Adds 2 Quarts to Capacity
  • Brushed Finish
  • Includes Transmission Pan, Pan Gasket, Drain Plug With Seal, Filter Extension, O-Rings, Filter Extension Screws, Nuts, Bolts, Washers and Instructions
  • Free Shipping - Estimated to ship direct from manufacturer on 10/20/23 , pending manufacturer availability. Learn More

    Thank you! We will notify you when this product becomes available.


    Items You May Also Consider

    20280 is rated 4.5 out of 5 by 6.
    Rated 5 out of 5 by from Good sturdy pan, with a drain plug!! Was very happy to see it had a drain plug and a temp sensor port. Comes with bolts and an extension for the filter so it reaches the bottom of the pan. Also I don't know why drain plugs aren't standard on every pan.
    Date published: 2021-10-30
    Rated 5 out of 5 by from awesome very happy with my new trans pan. everything lined right up. I had no issues. directions were very straight forward and easy to follow. I would definitely recommend this pan to anyone using a TH400
    Date published: 2016-03-21
    Rated 4 out of 5 by from I bought the pan about 2 weeks ago. Everything was great except the cheap gasket that came with the pan and parts. Please upgrade the gasket to the level of the transmission pan and everything would have been great. Upgraded gasket complements the part for any classic car enthusiast.
    Date published: 2014-11-02
    Rated 3 out of 5 by from Pan is great, adapter/ supplied parts(Subpar) The pan is great. Just what you would expect from B&M. The kit they provide isn’t the greatest. The gasket is poor quality, and had to replace it with a FelPro. The filter tube adapter did not fit the stock pan on my 1973 Camaro Z28 RS TH400. I had to machine the filter adapter by .09375 or 3/16”. With the filter tube extension on the directions said the total measurement should be around 6”. Mine was 5-1/2” so there should’ve been no issues installing it, but when I put the pan on the filter was hanging down to low not allowing the pan to mate correctly. After trimming the adapter it fit perfectly. Also they provide a a 1-1/2” long 5/16 bolt & nut to mount the the filter,” PRETTY CHEAP B&M”. I made a sleeve to slide over the bolt once through the filter to jam against the valve body. If you mount it the way B&M wants you to, the filter can move up and down and side to side. Mounting it with a sleeve it prevents the filter from moving around inside the pan. Other than that the pan was great. Everything else was subpar.
    Date published: 2021-06-14
    • y_2023, m_10, d_2, h_4
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.35
    • cp_1, bvpage1
    • co_hasreviews, tv_2, tr_4
    • loc_en_US, sid_10001_10001_58554, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Can you block off temp port if you don’t want to use it?

    Asked by: Scott M
    Yes, you can block off the temp port on the B&M 130-20280 if you do not wish to use it
    Answered by: langus
    Date published: 2022-08-18
    • y_2023, m_10, d_1, h_5CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.35
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_10001_10001_58554, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Related Products

    Note: For replacement filter, use 130-10288.Includes Gasket, Filter and Fluid Pickup ExtensionB&M Hi-Tek Deep Chrome Trans Pan for GM TH350 Transmission.Heavy Gauge Stamped Steel ConstructionDrain Port with Magnetic Drain PlugHigh Quality Chrome Plated FinishAdditional 3-quart Fluid CapacityOver 65 Years of ...
    Finned Design for Added Strength & CoolingB&M Hi-Tek Deep Trans Pan for AOD/E & 4R70W Transmissions.Includes Gasket and all Necessary HardwareSome Include Fluid Pickup ExtensionAdditional 3-quart Fluid CapacityImproved Cooling PropertiesLifetime Limited WarrantyNo Dipstick ModificationEasy ...
    Applications:2009-2017 Toyota Sequoia V82009-2017 Toyota Tundra V8B&M Hi-Tek Deep Trans Pan for Toyota AB60 Transmission.Fill Port with Magnetic Drain Plug For Easy Servicing1/8 NPT Temperature Sensor Port for Temp GaugeLarge Magnet to Capture Metal ShavingsFinned A356-T6 Aluminum ConstructionAdditional ...

    Recently Viewed

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.