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PAI Industries · Suspension & Steering
700458
In stock · ships from Knoxville
This is a flexible exhaust bellows (flex joint) kit for heavy‑duty trucks.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
Kenworth
Peterbilt
Kenworth
Peterbilt
Designed for exhaust sections with 4-inch inlet/outlet connections. Direct cross‑ref to Kenworth OEM numbers M663541, M664111 and TRP EBKW11865. Vehicle model years not specified, but fits many Kenworth/Peterbilt chassis using the listed engines.
Part data verified against 5 catalog sources
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It absorbs engine vibration and thermal expansion in the exhaust system, preventing cracks and leaks that can hurt performance and fuel economy. Typically replaced when you notice soot trails, a failed flex section, or during turbo/EGR service. The kit includes a 4‑in. diameter stainless‑steel bellows, two clamps, and two gaskets.
Part Number: 700458
BELLOWS KIT EBKW11865
Vendor: PAI Industries
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside suspension & steering
