Transmission & Rear-Ends

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Transmission Overhaul Kits & Rear-Ends from Northern Auto Parts

Perfect for restorations or performance enhancements, our transmission kits support all your transmission and rear-end requirements with precision-engineered solutions, letting the improved performance from our engine kits shine through. Our selection is designed to upgrade your vehicle's power transfer and dependability from your transmission to the wheels.

Boost your vehicle's drivetrain with Northern Auto Parts' exceptional range of transmission and rear-end components.

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  • BNM20234

    B&M

    Part #: 20234

    BNM20234

    Engine Make: B&M Performance
    pdm:Brand: B&M
    pdm:Material: Steel
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    pdm:Product Type: Automatic Transmission Modulator Valve
    pdm:Emission Code: 5
    pdm:California Proposition 65 Required: Yes
    pdm:Finish: Gold Iridited
    pdm:line_code: BNM
    pdm:Warning: California Proposition 65
    pdm:Instructions Included: Yes
    pdm:Sale Category: Transmission and Drivetrain
    pdm:internal_sku: BNM20234
    $48.35
  • BNM20260

    B&M

    Part #: 20260

    BNM20260

    Engine Make: B&M Performance
    pdm:Product Type: Automatic Transmission Valve Body Kit
    pdm:Manual Control: No
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    pdm:Emission Code: 5
    pdm:Brand: B&M
    pdm:Automotive Item Grade: High Performance
    pdm:California Proposition 65 Required: Yes
    pdm:Instructions Included: Yes
    pdm:Gasket Included: Yes
    pdm:line_code: BNM
    pdm:internal_sku: BNM20260
    pdm:Warning: California Proposition 65
    $72.39
  • BNM20261

    B&M

    Part #: 20261

    BNM20261

    Engine Make: B&M Performance
    pdm:Automotive Item Grade: High Performance
    pdm:Gasket Included: Yes
    pdm:Emission Code: 5
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    pdm:Instructions Included: Yes
    pdm:Brand: B&M
    pdm:California Proposition 65 Required: Yes
    pdm:Warning: California Proposition 65
    pdm:Product Type: Automatic Transmission Valve Body Kit
    pdm:line_code: BNM
    pdm:internal_sku: BNM20261
    $81.99
  • BNM20289

    B&M

    Part #: 20289

    BNM20289

    Engine Make: B&M Performance
    pdm:California Proposition 65 Chemical Name: Nickel (Metallic)
    pdm:Brand: B&M
    pdm:Additional Fluid Capacity (qts): 2
    pdm:California Proposition 65 Chemical Name: Lead
    pdm:Emission Code: 5
    pdm:Filter Extension Included: Yes
    pdm:California Proposition 65 Required: Yes
    pdm:California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
    pdm:Instructions Included: Yes
    pdm:Filter Included: No
    pdm:Material: Steel
    pdm:Drain Plug Included: Yes
    pdm:Product Type: Automatic Transmission Pans
    pdm:Mounting Hardware: Yes
    pdm:Gasket Included: Yes
    pdm:Sale Category: Transmission and Drivetrain
    pdm:Transmission: TH400
    pdm:Temperature Sensor Bung: Yes
    pdm:Warning: California Proposition 65
    pdm:Style: Deep
    pdm:Transmission Type: Automatic
    pdm:line_code: BNM
    pdm:internal_sku: BNM20289
    $130.95
  • BNM20400

    B&M

    Part #: 20400

    BNM20400

    Engine Make: B&M Performance
    pdm:Additional Contents: New needle bearing and thrust washer
    pdm:Bolt Circle Diameter (in): 10.75
    pdm:Automotive Item Grade: High Performance
    pdm:Brand: B&M
    pdm:Material: Steel
    pdm:Stall: 1800-2200
    pdm:California Proposition 65 Required: No
    pdm:Transmission: TH400
    pdm:Stall Speed: 1,800-2,200
    pdm:Emission Code: 5
    pdm:Input Spline: 30
    pdm:Product Type: Automatic Transmission Torque Converter
    pdm:Transmission: TH425
    pdm:Transmission: TH375
    pdm:Stall Torque Ratio: 1800 to 2200 RPM
    pdm:internal_sku: BNM20400
    pdm:Flexplate Change Needed: Yes
    pdm:Transmission: TH350
    pdm:Furnace Brazed: Yes
    pdm:line_code: BNM
    pdm:Transmission: TH375B
    pdm:Sale Category: Transmission and Drivetrain
    $329.95

Why Buy Transmission Kits & Rear-End Kits from Northern Auto Parts?

Northern Auto Parts is your ultimate source for high-grade transmission overhaul kits and rear-end parts, including transmission and rear-end parts that cater to most makes and models. Our transmission flexplates and other components offer unmatched durability, making them ideal for both maintenance and high-performance applications. Elevate your vehicle's efficiency and power with our specialized parts, guaranteeing a blend of performance and longevity for any drivetrain project.

Why Buy Vehicle Parts from Northern Auto Parts?

40+ Years Experience
Northern Auto Parts has been providing auto parts for all makes and models for over 40 years. We have everything you need to keep your car, truck, or SUV running in peak condition.

Trusted Source for Name-Brand Parts
We carry a wide variety of name-brand components, so you can find the exact parts you need to repair or replace anything on your vehicle. From engine components to exterior parts, we have a vast selection to choose from.

Competitive Pricing
We are committed to affordability without compromising on quality. Our prices provide the best value for your money, whether you’re an automotive technician or a DIY enthusiast.