Skip to Product Info
    • B&M Fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions 20300
    • B&M Fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions 20300
    • BMM20300.jpg
    • 20300.jpg
    • 20300_2.jpg
    • 20300_3.jpg
    • 20300.jpg
    • 20300_2.jpg
    • 20300_3.jpg
    Sale!

    B&M Fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions 20300

    Vendor: B&M
    Part Number: 20300
    Save $6.24
    Sale Price $49.95 Regular Price $56.19

    Available to order. In-stock orders typically ship in 1 to 2 business days.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
    International Shipping Available: email sales@berryperformancesales.com for a quote.
    Payment & Security

    Secure, encrypted checkout. Card details go straight to the payment processor and are never stored by us.

    • Amazon
    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Share to:
    B&M Racing & Performance brings you this billet aluminum speedometer port block-off plug that fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna-N-rubber o-ring. It features a black Mil-Spec anodized finish for long lasting good looks, even in harsh conditions. Comes with hardware and instructions for a quick and easy installation.


    B&M Fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions 20300


    Specifications:

    Brand B&M
    Category Transmission
    Emission Code 5
    Item Grade High Performance
    Material Aluminum
    Product Type Speedometer Port Plug
    Sub Category Transmission Components
    Transmission 46RH
    Transmission TF-727
    Transmission 47RH
    Transmission 37RH
    Transmission 36RH
    Brand B&M
    Category Transmission
    Emission Code 5
    Item Grade High Performance
    Material Aluminum
    Product Type Speedometer Port Plug
    Sub Category Transmission Components
    Transmission 46RH
    Transmission TF-727
    Transmission 47RH
    Transmission 37RH
    Transmission 36RH
    Description_INV TRANSMISSION SPEEDO PORT PLUG, MOPAR
    Description_ASC Does NOT fit RE (Electronically controlled) Transmission models
    Description_DES B&M TRANSMISSION SPEEDOMETER PORT PLUG
    Description_EXT Fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions
    Description_MKT B&M Racing & Performance brings you this billet aluminum speedometer port block-off plug that fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna-N-rubber o-ring. It features a black Mil-Spec anodized finish for long lasting good looks, even in harsh conditions. Comes with hardware and instructions for a quick and easy installation.
    Description_FAB Billet Aluminum Construction with Engraved B&M Logo
    Description_FAB Protects Your Transmission from Contaminants during use or storage
    Description_FAB Replaceable O-ring seal for leak prevention and simple maintenance
    Description_FAB Perfect for Electronic Speedometer Conversions
    Description_FAB Mil-Spec Black Anodized Finish for long lasting good looks
    Description_FAB Includes Stainless Steel Hardware for Superior Corrosion Resistance
    Description_INV TRANSMISSION SPEEDO PORT PLUG, MOPAR
    Description_ASC Does NOT fit RE (Electronically controlled) Transmission models
    Description_DES B&M TRANSMISSION SPEEDOMETER PORT PLUG
    Description_EXT Fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions
    Description_MKT B&M Racing & Performance brings you this billet aluminum speedometer port block-off plug that fits Mopar TF-727, 36RH, 37RH, 46RH and 47RH transmissions. This plug is used to block the mechanical speedometer gear port when upgrading to an electronic speedometer and includes a replaceable Buna-N-rubber o-ring. It features a black Mil-Spec anodized finish for long lasting good looks, even in harsh conditions. Comes with hardware and instructions for a quick and easy installation.
    Description_FAB Billet Aluminum Construction with Engraved B&M Logo
    Description_FAB Protects Your Transmission from Contaminants during use or storage
    Description_FAB Replaceable O-ring seal for leak prevention and simple maintenance
    Description_FAB Perfect for Electronic Speedometer Conversions
    Description_FAB Mil-Spec Black Anodized Finish for long lasting good looks
    Description_FAB Includes Stainless Steel Hardware for Superior Corrosion Resistance


    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

    Read the full Shipping Policy

    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

    Recently Viewed