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Paccar  |  SKU: K071-429

K071-429 | Genuine Paccar® Frame Cap Bracket

$8900
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Description:
A frame bracket cap K071-429 is a structural or semi-structural metal component that’s used to secure, reinforce, or enclose a mounting bracket attached to a vehicle’s frame—especially in heavy-duty trucks like Kenworth or Peterbilt. Frame Cap Bracket For Kenworth T680, T800, T880 etc. work condition, used take-off Kenworth T880 2024

Part Number: K071-429, K071429
Condition: Used In Good Condition
Manufacture/Brand: Paccar

Specifications of K071-429:

Aluminum
Airglide 200, 400
4/Suspension


Fits K071-429 For 
Kenworth T2000 1996 thru 2010
Kenworth T300 1995 thru 2008
Kenworth T370 2009 thru Current
Kenworth T450 1995 thru 2008
Kenworth T600 Aerocab 1995 thru 2007
Kenworth T600B 1995 thru 2003
Kenworth T660 2008 thru 2016
Kenworth T680 2013 thru 2021
Kenworth T700 2011 thru 2014
Kenworth T800 1995 thru 2002
Kenworth T800 Curved Glass 1995 thru Current
Kenworth T880 2014 thru Current
Kenworth W900B 1995 thru Current
Kenworth W900B Aerocab 1995 thru Current
Kenworth W900L 1995 thru Current
Kenworth W900L Aerocab 1995 thru Current


Purpose of using K071-429:

Function Description
1. Secures frame-mounted components Holds parts like stabilizer bars, crossmembers, or suspension arms firmly in place against the frame.
2. Reinforces the bracket structure Acts like a "clamp" or "cover" that compresses over the main bracket and helps handle stress and vibration.
3. Prevents movement or shifting Keeps critical parts from sliding or rotating—especially under heavy load or suspension travel.
4. Protects bracket joints Shields the bracket’s mounting area from wear, debris, and corrosion.


Signs of a Frame Cap Bracket K071-429:

1. Clunking, Popping, or Rattling Noises

Especially when going over bumps or turning.
Comes from the rear or side of the truck near the suspension.
Caused by loose or shifting stabilizer bars, which the cap is supposed to hold securely.

2. Visible Movement or Looseness in Bracket Area

When inspecting the suspension or sway bar:
The bar moves side-to-side or shifts in its bracket.
Cap may be loose, cracked, or deformed, especially under the bolts.
Mounting bolts may appear pulled out, or threads damaged.

3. Cracks or Breakage in the Cap

Cracks can form due to:
Over-torquing
Fatigue from vibration and stress
Corrosion weakening the cap (especially if aluminum or steel)
Cap may split along edges or bolt holes.

4. Uneven or Wandering Ride

Worn cap = loose sway bar = reduced lateral stability.
You may feel the truck:
Swaying more in turns
Wandering slightly at highway speeds
Handling feels "loose" or less predictable

5. Excessive Bushing or Bracket Wear

The stabilizer bar bushings under the cap may:
Wear unevenly
Appear crushed, off-center, or torn
Often a sign the cap isn’t holding proper tension or alignment

6. Rust, Corrosion, or Pitting

If the cap or bolts are exposed to moisture (e.g. road salt), you might see:
Rust flaking
Bolt head corrosion
Cap surface pitting
This weakens the cap and its ability to secure the bar.


About the Manufacturer – Paccar:

PACCAR Inc is a global technology leader in the design, manufacture, and customer support of premium light-, medium-, and heavy-duty trucks. Founded in 1905 and headquartered in Bellevue, Washington, PACCAR is best known for its world-class truck brands: Kenworth, Peterbilt, and DAF.
PACCAR’s trucks are recognized for their durability, fuel efficiency, advanced engineering, and driver-focused technology. In addition to truck manufacturing, PACCAR also designs and builds diesel engines, and provides financial services, information technology, and aftermarket support to its global customer base.

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