National Overhaul Warranty®


An overhaul warranty that goes the distance.

Quote An Overhaul With a NOW® Warranty

National Overhaul Warranty® (NOW®) is an extended warranty protecting your Cummins Genuine Overhaul. Eligibility for NOW® coverage requires the purchase of an engine overhaul kit and cylinder head. We recognize that when you buy Genuine Cummins Parts, durability is at the top of your mind. With the right protection, our parts can keep you and your equipment on the road with added peace of mind. We’re excited to share our NOW® program for MidRange and heavy-duty engines, which covers the following inspected and/or replaced parts:


Replacement Parts (COVERED)

  • ReCon Cylinder Head
  • Pistons and Piston Rings
  • Cylinder Liners
  • Crankshaft Main Bearings
  • Connecting Rod Bearings
  • Necessary Gaskets & Seals
  • Bypass Valve

Inspected Parts (COVERED)

  • Cylinder Block
  • Crankshaft
  • Camshaft
  • Bielas
  • Rocker Lever Assemblies
  • Push Tubes
  • Intake Manifold Cover
  • Air Intake Connection
  • Coletor de escape
  • Lubricating Oil Pan & Suction Tube
  • Cárter de óleo



x15 heavy-duty engine


2 year / 200,000 miles
3 year / 300,000 miles*

Available on the following heavy-duty engines in the United States and Canada: 

  • M11/ISM
  • N14
  • ISX transit bus and truck engines

*With purchase of Elite Overhaul Kit

Quote An Overhaul With a NOW Warranty
ISB medium-duty engine


2 year / 100,000 miles

Available on the following medium-duty engines in the United States and Canada:

  • 2010 and older ISB, B Gas Plus, C8.3, ISC, C Gas Plus and ISL automotive engines
  • 2013 ISB and ISL automotive engines
  • Tier 3 QSB, QSC and QSL industrial engines
  • Tier 4 QSB and QSL industrial engines
Quote An Overhaul With a NOW Warranty

Genuine Cummins Overhauls

Os kits de revisão originais Cummins são feitos apenas com peças originais Cummins, projetadas especificamente para o seu motor e apoiadas por todos os locais de reparo autorizados Cummins em caso de falha. Only Cummins certified repair locations can offer NOW, which can cover replaced and inspected parts for two- or three-year options.

Learn about overhauls
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