2022 Peterbilt 337 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 2022 Peterbilt 337? 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: 2022 Peterbilt 337 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 2022 Peterbilt 337. 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 2022 Peterbilt 337, call our engine specialists at (631) 991-7700 or request a quote online. We offer competitive pricing with free nationwide shipping.
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 337 Engines
Other model years available for the Peterbilt 337
2011 Peterbilt 337
PACCAR PX-8 8.3L
2014 Peterbilt 337
PACCAR PX-7 6.7L
2018 Peterbilt 337
PACCAR PX-7 6.7L
2017 Peterbilt 337
Cummins ISL-G 8.9L
2020 Peterbilt 337
PACCAR PX-9 8.9L
2023 Peterbilt 337
PACCAR PX-9 8.9L
2019 Peterbilt 337
PACCAR PX-9 8.9L
2018 Peterbilt 337
PACCAR PX-9 8.9L
Vehicles with PACCAR PX-9 Engine
This same engine is also available for these vehicles
2024 Peterbilt 579
PX-9 8.9L DIESEL
2024 Peterbilt 348
PX-9 8.9L DIESEL
2022 Peterbilt 567
PX-9 8.9L DIESEL
2019 Kenworth W900
PX-9 8.9L DIESEL
2018 Kenworth T400
PX-9 8.9L DIESEL
2019 Peterbilt 567
PX-9 8.9L DIESEL
2017 Kenworth T400
PX-9 8.9L DIESEL
2016 Peterbilt 348
PX-9 8.9L DIESEL
More Peterbilt Engines
Browse other Peterbilt models with remanufactured engines
1982 Peterbilt 310
Cummins N14 14L
1993 Peterbilt 379
Cummins L10 10L
2002 Peterbilt 330
Cummins N14 14L
2008 Peterbilt 386
Cummins ISM 10.8 10.8L
1999 Peterbilt 379
Caterpillar 3126 7.2L
2007 Peterbilt 357
Caterpillar C13 12.5L
1987 Peterbilt 357
Cummins N14 14L
2008 Peterbilt 388
Cummins ISX 15.0 15L
More PACCAR Engines
Explore other PACCAR engine models we carry
2019 Peterbilt 567
PACCAR MX-11 10.8L DIESEL
2015 Peterbilt 365
PACCAR PX-9 8.9L DIESEL
2008 Kenworth T300
PACCAR PX-6 6.7L DIESEL
2012 Kenworth T700
PACCAR MX 12.9L DIESEL
2017 Kenworth T880
PACCAR MX-13 12.9L DIESEL
2019 Peterbilt 579
PACCAR PX-9 8.9L DIESEL
2023 Kenworth T880
PACCAR MX-13 12.9L DIESEL
2015 Kenworth T660
PACCAR MX-13 12.9L DIESEL
Similar 8.9L DIESEL Engines
Other diesel engines with similar specifications
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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 2022 Peterbilt 337or 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.
