Skip to main content

Confirm this item fits

Add your vehicle details to make sure this item fits.

Picture 1 of 8

Stock photo
Stock photo
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 1 of 8
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 2 of 8
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 3 of 8
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 4 of 8
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 5 of 8
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 6 of 8
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 7 of 8
B&M 20234 Adjustable Vacuum Transmission Modulator - Picture 8 of 8

Automatic Transmission Vacuum Modulator B & M 20234

4.758 product ratings
Super Shops (48053)
99.2% positive feedback
Price:
US $53.19
ApproximatelyAU $81.89
+ $15.42 postage
Estimated delivery Mon, 1 Sep - Wed, 10 Sep
Returns:
30-day returns. Buyer pays for return postage. If you use an eBay postage label, it will be deducted from your refund amount.
Condition:
Brand New
Compatible with TH350/TH400 Automatic Transmissions; The B&M® vacuum modulator is fully adjustable and allows you to fine-tune your shift points and shift feel. This is done by turning the adjustment screw inside of the vacuum line connection for more or less diaphragm preload, thus raising or lowering part throttle shift points and line pressures.;.

About this product

Product Identifiers

BrandB&M
Manufacturer Part Number20234
eBay Product ID (ePID)110053127

Product Key Features

MaterialSteel

Additional Product Features

NotesDescription--Transmission Vacuum Modulator
Sub TypeAutomatic Transmission Modulator Valve
Part TypeTransmission Hard Parts

All listings for this product

Buy It Now
New
B&M 20234 Adjustable Vacuum Transmission Modulator
item 1 B&M 20234 Adjustable Vacuum Transmission Modulator
AU $81.89
+AU $23.74 postage
20234 B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions
item 2 20234 B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions
AU $81.89
+AU $23.74 postage
20234 B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions
item 3 20234 B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions
AU $81.89
+AU $23.74 postage
B&M 20234 Adjustable Vacuum Transmission Modulator
item 4 B&M 20234 Adjustable Vacuum Transmission Modulator
AU $81.89
+AU $23.74 postage
B&M 20234 Adjustable Auto Trans Modulator Valve
item 5 B&M 20234 Adjustable Auto Trans Modulator Valve
AU $77.82
+AU $28.32 postage
B&M 20234 Adjustable Vacuum Modulator for GM TH350 and TH400
Almost gone
item 6 B&M 20234 Adjustable Vacuum Modulator for GM TH350 and TH400
AU $91.62
+AU $24.03 postage
Auto Trans Modulator B & M Racing & Performance 20234
item 7 Auto Trans Modulator B & M Racing & Performance 20234
AU $99.09
+AU $24.25 postage
B&M 20234 Adjustable Vacuum Modulator for GM TH350 and TH400
item 8 B&M 20234 Adjustable Vacuum Modulator for GM TH350 and TH400
AU $99.67
+AU $24.27 postage
Auto Trans Modulator B & M Racing & Performance 20234
item 9 Auto Trans Modulator B & M Racing & Performance 20234
AU $99.97
+AU $24.29 postage
B&M 20234 Transmission Vacuum Modulator
item 10 B&M 20234 Transmission Vacuum Modulator
AU $101.14
+AU $24.32 postage
Automatic Transmission Vacuum Modulator B & M 20234
item 11 Automatic Transmission Vacuum Modulator B & M 20234
AU $101.99
+AU $24.34 postage
Automatic Transmission Vacuum Modulator B & M 20234
item 12 Automatic Transmission Vacuum Modulator B & M 20234
AU $103.23
+AU $24.37 postage
Auto Trans Modulator B & M Racing & Performance 20234
item 13 Auto Trans Modulator B & M Racing & Performance 20234
AU $105.49
+AU $24.44 postage
B&M Adjustable Modulator Fits GM TH350 TH400 Automatic Transmissions 20234
item 14 B&M Adjustable Modulator Fits GM TH350 TH400 Automatic Transmissions 20234
AU $106.09
+AU $24.46 postage
20234 B&M Transmission Vacuum Modulator for Chevy Express Van SaVana Suburban
item 15 20234 B&M Transmission Vacuum Modulator for Chevy Express Van SaVana Suburban
AU $107.07
+AU $24.49 postage
20234 B&M Transmission Vacuum Modulator for Chevy Suburban Blazer Express Van
item 16 20234 B&M Transmission Vacuum Modulator for Chevy Suburban Blazer Express Van
AU $107.07
+AU $24.49 postage
20234 B&M Transmission Vacuum Modulator for Chevy Olds Suburban Blazer SaVana
item 17 20234 B&M Transmission Vacuum Modulator for Chevy Olds Suburban Blazer SaVana
AU $107.07
+AU $24.49 postage
20234 B&M Transmission Vacuum Modulator for Chevy Olds Suburban Express Van C10
item 18 20234 B&M Transmission Vacuum Modulator for Chevy Olds Suburban Express Van C10
AU $107.07
+AU $24.49 postage
20234 B&M Transmission Vacuum Modulator for Olds Chevy SaVana Cutlass Suburban
item 19 20234 B&M Transmission Vacuum Modulator for Olds Chevy SaVana Cutlass Suburban
AU $107.07
+AU $24.49 postage
B&M 20234 Transmission Vacuum Modulator
item 20 B&M 20234 Transmission Vacuum Modulator
AU $86.26
+AU $45.93 postage
B&M 20234 Adjustable Modulator For GM TH350/TH400 Automatic Transmissions
item 21 B&M 20234 Adjustable Modulator For GM TH350/TH400 Automatic Transmissions
AU $107.85
+AU $24.51 postage
B&M 20234 Adjustable Vacuum Modulator
item 22 B&M 20234 Adjustable Vacuum Modulator
AU $81.89
+AU $50.83 postage
B&M 20234 Transmission Vacuum Modulator
item 23 B&M 20234 Transmission Vacuum Modulator
AU $109.59
+AU $24.57 postage
Automatic Transmission Vacuum Modulator B & M 20234
item 24 Automatic Transmission Vacuum Modulator B & M 20234
AU $109.59
+AU $24.57 postage
B&M Automatic Transmission Modulator Valve - B&M Adjustable Modulator - GM TH350
item 25 B&M Automatic Transmission Modulator Valve - B&M Adjustable Modulator - GM TH350
AU $109.68
+AU $24.57 postage
B&M 20234 Transmission Vacuum Modulator
item 26 B&M 20234 Transmission Vacuum Modulator
AU $110.07
+AU $24.57 postage
B&M 20234 Transmission Vacuum Modulator
item 27 B&M 20234 Transmission Vacuum Modulator
AU $110.37
+AU $24.59 postage
B&M Automatic Transmission Vacuum Modulator - For GM TH350 and TH400 automatic t
item 28 B&M Automatic Transmission Vacuum Modulator - For GM TH350 and TH400 automatic t
AU $107.92
+AU $29.21 postage
Auto Trans Modulator Valve fits 1965-1981 Pontiac Firebird Bonneville,Catalina F
item 29 Auto Trans Modulator Valve fits 1965-1981 Pontiac Firebird Bonneville,Catalina F
AU $114.40
+AU $24.71 postage
B&M 20234 Transmission Vacuum Modulator
item 30 B&M 20234 Transmission Vacuum Modulator
AU $111.30
+AU $29.30 postage
B&M Adjustable Modulator For GM TH350/TH400 Automatic Transmissions 20234
item 31 B&M Adjustable Modulator For GM TH350/TH400 Automatic Transmissions 20234
AU $116.10
+AU $24.76 postage
B&M 20234 Transmission Vacuum Modulator for GM TH350 and TH400
item 32 B&M 20234 Transmission Vacuum Modulator for GM TH350 and TH400
AU $95.28
+AU $47.84 postage
B&M Adjustable Modulator For GM TH350/TH400 Automatic Transmissions 20234
item 33 B&M Adjustable Modulator For GM TH350/TH400 Automatic Transmissions 20234
AU $122.67
+AU $24.95 postage
B&M 20234 Adjustable Modulator for GM TH350/TH400 Automatic Transmissions
item 34 B&M 20234 Adjustable Modulator for GM TH350/TH400 Automatic Transmissions
AU $118.26
+AU $29.52 postage
B&M 20234 Transmission Vacuum Modulator
item 35 B&M 20234 Transmission Vacuum Modulator
AU $81.89
+AU $67.32 postage
B&M B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions 20234
item 36 B&M B&M Adjustable Modulator - GM TH350/TH400 Automatic Transmissions 20234
AU $121.35
+AU $29.60 postage
B&M 20234 Vacuum Modulator, Adjustable, TH350 / TH400, Each
item 37 B&M 20234 Vacuum Modulator, Adjustable, TH350 / TH400, Each
AU $81.89
+AU $70.69 postage
B&M
item 38 B&M
AU $129.75
+AU $25.17 postage
B&M 20234 Vacuum Modulator Adjustable for TH350/TH400
item 39 B&M 20234 Vacuum Modulator Adjustable for TH350/TH400
AU $104.56
+AU $56.08 postage
B and M AUTOMOTIVE Th400 Modulator 20234
item 40 B and M AUTOMOTIVE Th400 Modulator 20234
AU $130.26
+AU $30.96 postage
B&M 20234 Transmission Vacuum Modulator | High-Quality Auto Part, Universal Fit
item 41 B&M 20234 Transmission Vacuum Modulator | High-Quality Auto Part, Universal Fit
AU $137.76
+AU $25.40 postage
B&M 20234 Transmission Vacuum Modulator | High-Quality Auto Part, Universal Fit
item 42 B&M 20234 Transmission Vacuum Modulator | High-Quality Auto Part, Universal Fit
AU $137.76
+AU $25.40 postage
B&M MODULATOR GM 68-79 20234
item 43 B&M MODULATOR GM 68-79 20234
AU $134.69
+AU $29.99 postage
B&M For GM TH350 and TH400 automatic transmissions
item 44 B&M For GM TH350 and TH400 automatic transmissions
AU $129.75
+AU $51.81 postage
listings for this product

Ratings and reviews

Learn more
4.8
8 product ratings
  • 6 users rated this 5 out of 5 stars
  • 2 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

  • by joh_golda
    14 Dec, 2021

    nice

    Work perfect no adjustment needed. However you can if needed.

    Verified purchase: YesCondition: New

  • by howiehaefner
    09 Aug, 2019

    Great for adjusting low gear shiftpoints for the turbo 350 and 400

    Verified purchase: YesCondition: New

  • by bracou88
    10 Jun, 2024

    Satisfied with the items I purchased

    Satisfied with the items I purchased

    Verified purchase: YesCondition: New

  • by kansasjohn47
    27 Aug, 2019

    Great price!!!

    Just what I needed!!!

    Verified purchase: YesCondition: New

  • by gogorw-nvpayulmrf
    01 Mar, 2024

    Fantastic

    Great product

    Verified purchase: YesCondition: New

  • by wayn-parr
    26 Apr, 2017

    Stiff shift

    Haven't run it yet but it sure is shiney

    Verified purchase: YesCondition: New

  • by boxdodeca
    20 Dec, 2017

    It's the correct part. Good price.

    It's the correct part. Seems to work so far. Even came with some instructions.

    Verified purchase: YesCondition: Pre-owned

Best Selling in Automatic Transmission Parts

Save on Automatic Transmission Parts

Trending price is based on prices over last 90 days.

You may also like