2004 Peterbilt 357 ISL 8.9 8.9 Cummins Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Cummins ISL 8.9 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2004 Peterbilt 357? US Engine Production offers premium remanufactured Cummins ISL 8.9 long block engines that meet or exceed OEM specifications. Our remanufactured long blocks are completely disassembled, cleaned, inspected, and rebuilt using new components where necessary.
Every remanufactured diesel long block undergoes rigorous dynamometer testing to ensure optimal performance. With over 40 years of experience and a database of 473,000+ engines, we're America's trusted source for remanufactured long block engines.
Common Cummins ISL 8.9 Problems We Address
Our remanufacturing process specifically addresses these known issues with Cummins ISL 8.9 engines:
- EGR cooler failures leading to coolant leaks
- Turbocharger actuator issues causing reduced power
- Fuel injector problems resulting in rough idle
- Head gasket failures from overheating
- Crankshaft position sensor failures
- Oil dilution from regeneration cycles
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
Peterbilt Vehicle Compatibility
Cummins ISL 8.9 engines are commonly found in these Peterbilt vehicles:
- Model 579 highway trucks
- Model 389 classic trucks
- Model 567 vocational trucks
- Model 520 refuse trucks
- Model 348 medium-duty trucks
- Model 337 delivery trucks
What's Included With Your Remanufactured Long Block
Complete long block assembly with all new/remanufactured components
Core Components
- Remanufactured Engine Block
Cleaned, inspected, and machined to OEM specifications
- New Pistons & Rings
Premium quality pistons with new ring sets
- Reground Crankshaft
Precision ground to factory tolerances
- New Main Bearings
OEM-spec main bearings for proper clearance
- New Rod Bearings
Connecting rod bearings replaced
- New Camshaft
New or reground camshaft (where applicable)
Timing Components
- New Timing Chain/Belt
Complete timing set included
- New Timing Gears/Sprockets
All timing components replaced
- New Tensioners & Guides
Timing tensioners and guides included
Valvetrain
- New Lifters/Tappets
Hydraulic or solid lifters replaced
- Reconditioned Cylinder Head(s)
Heads resurfaced and pressure tested
- New Valve Seals
All valve stem seals replaced
Seals & Lubrication
- New Oil Pump
Oil pump replaced for proper lubrication
- New Gasket Set
Complete gasket set included
- New Front & Rear Seals
All main seals replaced
- New Freeze Plugs
Core plugs replaced
Frequently Asked Questions: 2004 Peterbilt 357 Cummins ISL 8.9 Remanufactured Engine
A remanufactured Cummins ISL 8.9 8.9L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 2004 Peterbilt 357. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a Cummins ISL 8.9 remanufactured long block for your 2004 Peterbilt 357, call our engine specialists at (631) 991-7700 or request a quote online. We offer competitive pricing and fast delivery.
What Our Customers Say
Trusted by thousands of customers nationwide
"I've bought several engines from US Engine Production over the years. Always top quality and their customer service is the best in the business."
"Was worried about buying a remanufactured engine but these guys made it easy. Engine runs like new and the warranty gives me peace of mind."
"Fast shipping and the engine was exactly as described. Installation went smoothly and it's been running great for 6 months now."
Warranty & Quality Assurance
Core Return Required: A refundable core deposit is required. We provide a prepaid shipping label for your old engine core return.
Call us for the best price on this Cummins ISL 8.9 remanufactured long block. Prices may vary based on configuration.
Email: [email protected]
Why US Engine Production?
- 40+ years of experience
- 473,000+ engines in database
- Nationwide shipping
- Expert technical support
- Quality guaranteed
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More Peterbilt 357 Engines
Other model years available for the Peterbilt 357
2003 Peterbilt 357
Cummins ISX 15.0 15.0L
1987 Peterbilt 357
Cummins N14 14.0L
1998 Peterbilt 357
Cummins N14 14.0L
2005 Peterbilt 357
Caterpillar C9 8.8L
2004 Peterbilt 357
Cummins ISL 8.9 8.9L
2006 Peterbilt 357
Cummins ISX 15.0 15.0L
1996 Peterbilt 357
Caterpillar 3406 14.6L
1998 Peterbilt 357
Caterpillar C10 10.3L
Vehicles with Cummins ISL 8.9 Engine
This same engine is also available for these vehicles
2024 Spartan Motors Metro Star
ISL 8.9 8.9L DIESEL
2016 Western Star 4700
ISL 8.9 8.9L DIESEL
2017 Van Hool Commuter Coach CX
ISL 8.9 8.9L DIESEL
2015 Spartan Motors Mountain Master
ISL 8.9 8.9L DIESEL
2015 Kenworth T400
ISL 8.9 8.9L DIESEL
2008 American LaFrance Condor
ISL 8.9 8.9L DIESEL
2021 Spartan Motors Metro Star
ISL 8.9 8.9L DIESEL
2017 Spartan Motors Gladiator
ISL 8.9 8.9L DIESEL
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Browse other Peterbilt models with remanufactured engines
1988 Peterbilt 362
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2002 Peterbilt 362
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1998 Peterbilt 378
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2019 Peterbilt 567
PACCAR MX-13 12.9L
1990 Peterbilt 379
Caterpillar 3176 10.3L
2011 Peterbilt 367
Cummins ISX 11.9 11.9L
2015 Peterbilt 384
Cummins ISL-G 8.9L
2016 Peterbilt 579
PACCAR PX-9 8.9L
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Explore other Cummins engine models we carry
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1991 Freightliner FLD120
Cummins L10 10.0L DIESEL
2020 Kenworth W900
Cummins ISX 11.9 11.9L DIESEL
2001 Dodge Ram 2500
Cummins 5.9L DIESEL
2015 Ram 2500
Cummins ETK 6.7L DIESEL
2021 Freightliner XC Raised Rail
Cummins ISX 15.0 15.0L DIESEL
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Buy Cummins ISL 8.9 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Cummins long block engines. Our ISL 8.9 remanufactured long blocks for Peterbilt vehicles include all new internal components including pistons, rings, bearings, timing components, and gaskets. Every long block is dyno tested and backed by our 1-year, unlimited mileage warranty. Whether you need a replacement long block engine for your 2004 Peterbilt 357or any other application, our team of experts is ready to help. Call us at (631) 991-7700 or email [email protected] for a free quote today.
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WARNING: Crude oil, gasoline, diesel fuel and other petroleum products can expose you to chemicals including toluene and benzene, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov
