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Proform Parts 66752 Exhaust Header Bolt

California Prop65: Warning
$37.95
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Free Delivery Available to a Shop Near You (some exclusions apply)


Each PROFORM® Grade 8 Header Bolt is permanently assembled with a pair of special washers. When the bolt is torqued to 28+ Feet Pounds, the washers’ super hardened external teeth bite into and grip the bottom of the bolt head and the top surface of the header. After being self-locked in this manner, any bolt-loosening rotation is blocked by a wedge-locking action created by the washers’ interfacing, matching cams. It’s an uphill climb: vibration that might ordinarily loosen the bolt actually increases the wedge-locking tension, securing the bolt even more. Because this simple wedge-locking method uses tension instead of friction, contact with oil actually facilitates the wedge effect. When changing headers, PROFORM Header Bolts can be untightened with a normal wrench, lubricated, and reused.

 

  • Permanently Assembled With A Pair Of Special Washers
  • Simple Wedge Locking. Can Be Untightened With A Normal Wrench, Lubricated, And Reused
  • No Little Clips Or Retainers To Handle
  • Oil Actually Improves Performance
  • Limited 1 Year Warranty

Product Specifications

Bolt TypeUniversal
Head TypeHex Head
Thread Size3/8 Inch-16
Length (IN)3/4 Inch
FinishBlack Oxide
ColorBlack
MaterialSteel
Washer TypeWedge Locking

Additional Information

Shipping & Returns

Shipping Charges

Shipping charges vary and are determined at checkout based on your shipping address. We ship via UPS and LTL Truck Freight for larger items with various expedited shipping options. Free Shipping is available to a local store where applicable.

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60-Day No-Hassle Returns

If you are not pleased with your purchase, simply return it for a full refund. To return an item, please contact us at 833-727-8784 or customerservice@partsvia.com and request a return authorization number.

Contact

Call us at 1-833-727-8784 or Email us at customerservice@partsvia.com.

We typically reply within 24-48 hours of your submission.