1981 Peterbilt 348 3306 10.5 Caterpillar Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Caterpillar 3306 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 1981 Peterbilt 348? US Engine Production offers premium remanufactured Caterpillar 3306 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 Caterpillar 3306 Problems We Address
Our remanufacturing process specifically addresses these known issues with Caterpillar 3306 engines:
- Injector o-ring failures causing fuel leaks
- HEUI pump failures affecting fuel delivery
- Turbocharger wastegate issues
- Cylinder liner pitting from coolant contamination
- Oil cooler failures
- ECM sensor failures
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
Peterbilt Vehicle Compatibility
Caterpillar 3306 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: 1981 Peterbilt 348 Caterpillar 3306 Remanufactured Engine
A remanufactured Caterpillar 3306 10.5L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 1981 Peterbilt 348. The exact price depends on the specific configuration, condition of your core return, and current availability. For an accurate, no-obligation quote on a Caterpillar 3306 remanufactured long block for your 1981 Peterbilt 348, 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
"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."
"Great experience from start to finish. The price was competitive and the quality exceeded my expectations. Will definitely buy again."
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 Caterpillar 3306 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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Other model years available for the Peterbilt 348
2012 Peterbilt 348
PACCAR PX-6 6.7L
1984 Peterbilt 348
Caterpillar 3306 10.5L
1984 Peterbilt 348
Cummins N14 14.0L
1983 Peterbilt 348
Caterpillar 3306 10.5L
2011 Peterbilt 348
PACCAR PX-6 6.7L
1984 Peterbilt 348
Detroit Diesel 6V-92N 9.0L
2015 Peterbilt 348
PACCAR PX-9 8.9L
1984 Peterbilt 348
Detroit Diesel 6V-92N 9.0L
Vehicles with Caterpillar 3306 Engine
This same engine is also available for these vehicles
1987 Freightliner FLC112
3306 10.5L DIESEL
1996 Peterbilt 357
3306 10.5L DIESEL
1997 Ford LT9513
3306 10.5L DIESEL
1987 White WHS
3306 10.5L DIESEL
1989 Ford LA9000
3306 10.5L DIESEL
1986 White WCS
3306 10.5L DIESEL
1989 Kenworth W900
3306 10.5L DIESEL
1988 White WIM
3306 10.5L DIESEL
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Cummins ISX 15.0 15.0L
2023 Peterbilt 367
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1994 Peterbilt 224
Cummins 6CT8.3 8.3L
1997 Peterbilt 357
Cummins M11 10.8L
2003 Peterbilt 357
Cummins ISX 15.0 15.0L
More Caterpillar Engines
Explore other Caterpillar engine models we carry
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1984 Ford F7000
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2001 Freightliner FLD132
Caterpillar C12 12.0L DIESEL
2001 International 5500i
Caterpillar C12 12.0L DIESEL
1994 Western Star 4900
Caterpillar 3176 10.3L DIESEL
2016 Caterpillar CT680
Caterpillar CT13 12.4L DIESEL
1985 White WX
Caterpillar 3208 10.4L DIESEL
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Buy Caterpillar 3306 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Caterpillar long block engines. Our 3306 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 1981 Peterbilt 348or 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.
PROPOSITION 65 WARNING
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
