BM 20234 Modulator For GM TH350 and TH400 Automatic Transmissions

SKU: 20234
For GM TH350 and TH400 automatic transmissions
Price: $31.04
FREE 3-Day Shipping (Details)

Shipping is free via UPS Ground or 3-Day Select for orders of $25 or more (excludes transmissions). If the transit time using UPS Ground Shipping will exceed 3 days to your location, we will upgrade the shipping service to UPS 3-Day Select, at no cost to you.

Free shipping is available within the continental U.S. only. Shipping charges will apply to all other destinations.

Verify This Part Fits Your Vehicle

B&M's vacuum modulator is fully adjustable, this allows you to tailor your shift points to within a range of 2-4 mph. Comes preadjusted for normal shift points. For TH350 and TH400.

  • Allows you to tailor shift points
  • B&M Quality
  • Comes supplied preadjusted
  • Fully adjustable
FinishGold iriditedPackage ContentsModulator valve
MaterialSteelInstructions IncludedYes
 California Proposition 65 Information

WARNING: This product can expose you to chemicals including Cadmium and cadmium compounds which are known to the State of California to cause cancer and birth defects, or other reproductive harm (For more information go to


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Search by Vehicle