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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  • BNM20402

    B&M

    Part #: 20402

    BNM20402

    Engine Make: B&M Performance
    pdm:Material: Steel
    pdm:Additional Contents: New needle bearing and thrust washer
    pdm:Furnace Brazed: Yes
    pdm:Bolt Circle Diameter (in): 10.75
    pdm:Flexplate Change Needed: Yes
    pdm:California Proposition 65 Required: No
    pdm:Emission Code: 5
    pdm:Automotive Item Grade: High Performance
    pdm:Brand: B&M
    pdm:Input Spline: 30
    pdm:Stall Torque Ratio: 2800 to 3200 RPM stall
    pdm:Sale Category: Transmission and Drivetrain
    pdm:Transmission: TH400
    pdm:Stall Speed: 2,800-3,200
    pdm:Product Type: Automatic Transmission Torque Converter
    pdm:Transmission: TH375
    pdm:internal_sku: BNM20402
    pdm:Transmission: TH350
    pdm:Transmission: TH425
    pdm:Transmission: TH375B
    pdm:line_code: BNM
    pdm:Stall: 2800-3200
    $499.95
  • BNM20404

    B&M

    Part #: 20404

    BNM20404

    Engine Make: B&M Performance
    pdm:Bolt Circle Diameter (in): 10.75
    pdm:Automotive Item Grade: High Performance
    pdm:Additional Contents: New needle bearing and thrust washer
    pdm:Brand: B&M
    pdm:Flexplate Change Needed: Yes
    pdm:Input Spline: 30
    pdm:California Proposition 65 Required: No
    pdm:Furnace Brazed: Yes
    pdm:Product Type: Automatic Transmission Torque Converter
    pdm:Emission Code: 5
    pdm:Material: Steel
    pdm:Sale Category: Transmission and Drivetrain
    pdm:Stall Torque Ratio: 2300 to 2500 RPM stall
    pdm:Stall: 2300-2500
    pdm:Transmission: TH375B
    pdm:Stall Speed: 2,300-2,500
    pdm:Transmission: TH425
    pdm:internal_sku: BNM20404
    pdm:Transmission: TH400
    pdm:line_code: BNM
    pdm:Transmission: TH375
    pdm:Transmission: TH350
    $339.95
  • BNM20412

    B&M

    Part #: 20412

    BNM20412

    Engine Make: B&M Performance
    pdm:Additional Contents: New needle bearings
    pdm:Transmission: TH400
    pdm:Furnace Brazed: Yes
    pdm:Automotive Item Grade: High Performance
    pdm:Brand: B&M
    pdm:Emission Code: 5
    pdm:Input Spline: 30
    pdm:Product Type: Automatic Transmission Torque Converter
    pdm:Stall Speed: 2,300-2,500
    pdm:Flexplate Change Needed: Yes
    pdm:Sale Category: Transmission and Drivetrain
    pdm:Transmission: TH375B
    pdm:Stall: 2300-2500
    pdm:Material: Steel
    pdm:California Proposition 65 Required: No
    pdm:Bolt Circle Diameter (in): 10.75
    pdm:Stall Torque Ratio: 2300 to 2500 RPM stall
    pdm:Transmission: TH375
    pdm:Transmission: TH350
    pdm:Transmission: TH425
    pdm:line_code: BNM
    pdm:internal_sku: BNM20412
    $499.95
  • BNM20416

    B&M

    Part #: 20416

    BNM20416

    Engine Make: B&M Performance
    pdm:Brand: B&M
    pdm:Bolt Circle Diameter (in): 10.75
    pdm:California Proposition 65 Required: No
    pdm:Input Spline: 30
    pdm:Sale Category: Transmission and Drivetrain
    pdm:Transmission: TH400
    pdm:Emission Code: 5
    pdm:Transmission: TH350
    pdm:Stall Speed: 1,800-2,200
    pdm:Stall: 1800-2200
    pdm:internal_sku: BNM20416
    pdm:Transmission: TH375B
    pdm:Transmission: TH375
    pdm:Product Type: Automatic Transmission Torque Converter
    pdm:Transmission: TH425
    pdm:line_code: BNM
    $369.95
  • BNM30228

    B&M

    Part #: 30228

    BNM30228

    Engine Make: B&M Performance
    pdm:Gasket Included: Yes
    pdm:Emission Code: 5
    pdm:Automotive Item Grade: High Performance
    pdm:Warning: California Proposition 65
    pdm:Brand: B&M
    pdm:California Proposition 65 Required: Yes
    pdm:line_code: BNM
    pdm:Product Type: Automatic Transmission Valve Body Kit
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    pdm:internal_sku: BNM30228
    pdm:Instructions Included: Yes
    pdm:Manual Control: Partial
    $141.95
  • BNM30229

    B&M

    Part #: 30229

    BNM30229

    Engine Make: B&M Performance
    pdm:Brand: B&M
    pdm:Product Type: Automatic Transmission Master Repair Kit
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    pdm:Emission Code: 5
    pdm:California Proposition 65 Required: Yes
    pdm:Warning: California Proposition 65
    pdm:Filter Included: Yes
    pdm:Gasket Included: Yes
    pdm:Bands: Included
    pdm:line_code: BNM
    pdm:Drain Plug Included: Yes
    pdm:internal_sku: BNM30229
    $389.95
  • BNM30262

    B&M

    Part #: 30262

    BNM30262

    Engine Make: B&M Performance
    pdm:Brand: B&M
    pdm:Emission Code: 5
    pdm:Automotive Item Grade: High Performance
    pdm:Gasket Included: Yes
    pdm:line_code: BNM
    pdm:Instructions Included: Yes
    pdm:Sale Category: Transmission and Drivetrain
    pdm:internal_sku: BNM30262
    pdm:Product Type: Automatic Transmission Valve Body Kit
    pdm:Warning: California Proposition 65
    pdm:California Proposition 65 Required: Yes
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    $62.95
  • BNM30287

    B&M

    Part #: 30287

    BNM30287

    Engine Make: B&M Performance
    pdm:Brand: B&M
    pdm:California Proposition 65 Chemical Name: Lead
    pdm:California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
    pdm:California Proposition 65 Required: Yes
    pdm:Material: Steel Reinforced Thermoplastic
    pdm:Color: Silver and Black
    pdm:Product Type: Kickdown Cable
    pdm:Connector Type: Swivel and Extender
    pdm:Warning: California Proposition 65
    pdm:Emission Code: 5
    pdm:internal_sku: BNM30287
    pdm:line_code: BNM
    $84.51
  • BNM35265

    B&M

    Part #: 35265

    BNM35265

    Engine Make: B&M Performance
    pdm:Product Type: Automatic Transmission Valve Body Kit
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    pdm:Instructions Included: Yes
    pdm:Gasket Included: Yes
    pdm:Emission Code: 5
    pdm:Automotive Item Grade: High Performance
    pdm:Brand: B&M
    pdm:California Proposition 65 Required: Yes
    pdm:internal_sku: BNM35265
    pdm:Warning: California Proposition 65
    pdm:line_code: BNM
    $72.49
  • BNM35498

    B&M

    Part #: 35498

    BNM35498

    Engine Make: B&M Performance
    pdm:Automotive Item Grade: High Performance
    pdm:line_code: BNM
    pdm:Product Type: Automatic Transmission Shift Lever
    pdm:Brand: B&M
    pdm:internal_sku: BNM35498
    pdm:Emission Code: 5
    pdm:California Proposition 65 Required: No
    pdm:Material: Steel
    pdm:Sale Category: Transmission and Drivetrain
    pdm:Color: Natural
    $42.95
  • BNM40262

    B&M

    Part #: 40262

    BNM40262

    Engine Make: B&M Performance
    pdm:Warning: California Proposition 65
    pdm:internal_sku: BNM40262
    pdm:Product Type: Automatic Transmission Valve Body Kit
    pdm:line_code: BNM
    pdm:Gasket Included: Yes
    pdm:Emission Code: 5
    pdm:California Proposition 65 Required: Yes
    pdm:Automotive Item Grade: High Performance
    pdm:Brand: B&M
    pdm:Instructions Included: Yes
    pdm:California Proposition 65 Chemical Name: Cadmium and cadmium compounds
    pdm:Manual Control: No
    $67.59
  • BNM40497

    B&M

    Part #: 40497

    BNM40497

    Engine Make: B&M Performance
    pdm:Color: Natural
    pdm:internal_sku: BNM40497
    pdm:Brand: B&M
    pdm:Emission Code: 5
    pdm:line_code: BNM
    pdm:Automotive Item Grade: High Performance
    pdm:Product Type: Automatic Transmission Shift Lever
    pdm:California Proposition 65 Required: No
    pdm:Material: Steel
    $45.06

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.

Revamp Your Ride with Our Engine Rebuild Kits

Our engine rebuild kits provide all the necessary components for a complete engine overhaul, ensuring optimal performance and longevity. Get your vehicle back on the road with the quality you deserve.

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.