HALDEX SLACK-AUTO – Ohio Peterbilt
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HALDEX SLACK-AUTO

HALDEX SLACK-AUTO

40020234M1D
OEM Supplier
12L x 6W x 3H in. 7.0 lb

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HALDEX SLACK-AUTO

The HALDEX SLACK-AUTO automatically adjusts the brakes to maintain proper clearance between the brake shoes and drum as the linings wear. This ensures consistent, reliable braking performance while reducing uneven tire and brake wear. Featuring a 6-inch arm length, 1.5-inch diameter with 28 splines, a -34 degree body angle, and a strap-style anchor bracket, it is engineered for precise fit and durability in heavy-duty trucking applications.



Cross References

OMCO OMC-400-10140
TRP® SA808029

Ohio Peterbilt offers several convenient shipping and pickup options:
  • UPS Shipping: We ship via UPS to customers in Ohio, Michigan, Pennsylvania, Indiana, Kentucky, West Virginia, Texas, and New Jersey.
  • Local Delivery: We provide local delivery to any business located within 50 miles of one of our locations.
  • In-Store Pickup: You can pick up your order at any of our ten Ohio Peterbilt locations.
  • Oversized Parts: These parts require LTL shipping, and may have other shipping restrictions. If you'd like to schedule other delivery options, please contact us at (440) 586-4528.

Standard Returns (Stock Items) Ohio Peterbilt accepts returns of stock truck parts within 30 days of purchase, provided the items are new, unused, and in resaleable condition with original packaging and all components intact. A copy of the original sales receipt or invoice should accompany the return to verify the purchase date.

VIEW FULL RETURN POLICY

If you're a tax-exempt customer, please complete our tax exempt form by click the button blow or contact us at ecommerce@ohiopeterbilt.com. We’ll help set up your online account so you can start placing tax-exempt orders.

COMPLETE TAX EXEMPT FORM

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