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146-9445 | Exhaust Manifold for Caterpillar C15, New

Pricing: $1,687.50

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Are you willing to leave MPG on the table?

The Exhaust Manifold never gets the credit it deserves? that is, until it forms a crack. While it doesn't look like the Exhaust Manifold is an integral part of your engine, that leaking exhaust gas is just horsepower, torque, and ultimately, fuel efficiency vanishing into thin air.

Whether you are seeking a replacement Exhaust Manifold, increased fuel efficiency, or are looking for a extra ’kick’ on the highway with a Performance Exhaust Manifold, Highway and Heavy Parts has you covered. And, while some equate aftermarket parts with the term, ’subpar’, HHP is here to set the record straight. HHP only offers premium Exhaust Manifolds with a industry leading 2-Year Unlimited Mileage Warranty, all with savings up to 50% off OEM prices. How’s that for an aftermarket part?

Looking for proof? Let’s talk Exhaust Manifolds.

  • Our exhaust manifold is made of high quality steel for long lasting strength and durability.
  • This offers Excellent reduction in heat with Ceramic coating while also improving air velocity.
  • Your new exhaust manifold helps reduce turbo lag and lower manifold temps by 300 degrees Fahrenheit.
  • A new manifold will prevent cracking, leaking or warping.
  • This exhaust manifold is made of molybdenum, ensuring it is high quality.
  • Made in the USA.
  • Your exhaust manifold is made to OEM specifications.
  • The manufacturer has designed this manifold to improve on the original engine manufacturer's design.
  • This manifolds advances gasket life.
  • ARP Turbo studs are included in your new manifold.


  • (1) Exhaust Manifold


2-Year Warranty

OEM Applications

  • CAT1469445
  • 100-5693
  • 146-9445
  • 5449
  • 1005693
  • 3406EEM
  • 1469445

Technical Data

Full Tilt Performance Information:
Fits 14.6L, ’99-‘04
Generally fits Peterbilt and Kentworth application.
Will work on some B and C model engines; if the port is round and not square.
ARP Turbo studs are included.

C15 Engine Specifications:
Year: 1999-2007
Liter: 15.2
CID: 928
Cylinder: L 6
Bore/ Stroke: 5.4000-5.4020",6.7320"
Compression Ratio: -
Firing Order: 1-5-3-6-2-4

Tune- Up Specifications:
Intake Valve Lash: .015"
Exhaust Valve Lash: .030"


Shipping Information

  • Item Requires Shipping
  • 38.0 lbs.
  • W8.0000” x H8.0000” x L41.0000”

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