2016 Peterbilt 320 PX-9 8.9 PACCAR Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This PACCAR PX-9 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 2016 Peterbilt 320? US Engine Production offers premium remanufactured PACCAR PX-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 PACCAR PX-9 Problems We Address
Our remanufacturing process specifically addresses these known issues with PACCAR PX-9 engines:
- Fuel injector failures affecting performance
- Turbocharger wear and failures
- EGR system problems
- Glow plug failures in cold weather
- Fuel pump issues
- Head gasket failures from overheating
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
Peterbilt Vehicle Compatibility
PACCAR PX-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: 2016 Peterbilt 320 PACCAR PX-9 Remanufactured Engine
A remanufactured PACCAR PX-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 2016 Peterbilt 320. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a PACCAR PX-9 remanufactured long block for your 2016 Peterbilt 320, 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
"Needed an engine fast for my work truck. They had it in stock and shipped same day. Engine is running perfectly. Highly recommend!"
"Excellent quality engine at a great price. The team was very helpful in finding the right engine for my truck. Shipped fast and arrived in perfect condition."
"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."
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 PACCAR PX-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 320 Engines
Other model years available for the Peterbilt 320
2002 Peterbilt 320
Cummins M11 10.8L
2004 Peterbilt 320
Cummins ISM 10.8 10.8L
2005 Peterbilt 320
Caterpillar C11 11.1L
2011 Peterbilt 320
Cummins ISX 11.9 11.9L
2007 Peterbilt 320
Cummins ISM 10.8 10.8L
1999 Peterbilt 320
Caterpillar 3126 7.2L
2001 Peterbilt 320
Cummins N14 14.0L
1990 Peterbilt 320
Caterpillar 3306 10.5L
Vehicles with PACCAR PX-9 Engine
This same engine is also available for these vehicles
2018 Peterbilt 348
PX-9 8.9L DIESEL
2015 Peterbilt 382
PX-9 8.9L DIESEL
2019 Peterbilt 382
PX-9 8.9L DIESEL
2019 Kenworth T400
PX-9 8.9L DIESEL
2016 Peterbilt 579
PX-9 8.9L DIESEL
2015 Peterbilt 382
PX-9 8.9L DIESEL
2023 Kenworth T370
PX-9 8.9L DIESEL
2019 Peterbilt 348
PX-9 8.9L DIESEL
More Peterbilt Engines
Browse other Peterbilt models with remanufactured engines
1985 Peterbilt 349
Cummins L10 10.0L
1984 Peterbilt 362
Detroit Diesel 6V-92N 9.0L
2007 Peterbilt 340
Cummins ISC 8.3 8.3L
1999 Peterbilt 377
Cummins M11 10.8L
1981 Peterbilt 362
Detroit Diesel 8V-92 12.1L
1994 Peterbilt 378
Cummins N14 14.0L
1992 Peterbilt 379
Caterpillar 3176 10.3L
2010 Peterbilt 365
Cummins ISM 10.8 10.8L
More PACCAR Engines
Explore other PACCAR engine models we carry
2017 Kenworth T880
PACCAR MX-13 12.9L DIESEL
2016 Kenworth T370
PACCAR PX-6 6.7L DIESEL
2021 Peterbilt 337
PACCAR PX-7 6.7L DIESEL
2011 Peterbilt 587
PACCAR MX 12.9L DIESEL
2022 Kenworth T370
PACCAR PX-8 8.3L DIESEL
2015 Kenworth T880
PACCAR MX-11 10.8L DIESEL
2017 Kenworth T680
PACCAR MX-13 12.9L DIESEL
2017 Kenworth T880
PACCAR MX-13 12.9L DIESEL
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Buy PACCAR PX-9 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured PACCAR long block engines. Our PX-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 2016 Peterbilt 320or 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
