1998 GMC B7 3126 7.2 Caterpillar Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Caterpillar 3126 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 1998 GMC B7? US Engine Production offers premium remanufactured Caterpillar 3126 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 3126 Problems We Address
Our remanufacturing process specifically addresses these known issues with Caterpillar 3126 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
GMC Vehicle Compatibility
Caterpillar 3126 engines are commonly found in these GMC vehicles:
- Sierra 1500, 2500HD, 3500HD trucks
- Canyon compact trucks
- Savana cargo and passenger vans
- Yukon and Yukon XL SUVs
- Acadia and Terrain crossovers
- TopKick and commercial 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: 1998 GMC B7 Caterpillar 3126 Remanufactured Engine
A remanufactured Caterpillar 3126 7.2L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 1998 GMC B7. 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 3126 remanufactured long block for your 1998 GMC B7, 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
"Great experience from start to finish. The price was competitive and the quality exceeded my expectations. Will definitely buy again."
"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."
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 3126 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 GMC B7
2001 GMC B7
Caterpillar 3126 7.2L
1993 GMC B7
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1995 GMC B7
General Motors LR0 7.0L
1997 GMC B7
General Motors LR0 7.0L
1993 GMC B7
Caterpillar 3116 6.6L
1998 GMC B7
Caterpillar 3116 6.6L
1998 GMC B7
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1994 GMC B7
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Vehicles with Caterpillar 3126 Engine
This same engine is also available for these vehicles
2001 Freightliner FL60
3126 7.2L DIESEL
2000 Freightliner FL50
3126 7.2L DIESEL
2002 Freightliner FL80
3126 7.2L DIESEL
2003 American LaFrance Metropolitan
3126 7.2L DIESEL
2001 Western Star 4900
3126 7.2L DIESEL
1997 Kenworth T300
3126 7.2L DIESEL
2002 Western Star 4900SA
3126 7.2L DIESEL
2008 Chevrolet C8500
3126 7.2L DIESEL
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1984 GMC C2500
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2003 GMC Sierra 3500
General Motors LB7 6.6L
1993 GMC C2500
General Motors 5.0L
2003 GMC Sierra 2500 HD
General Motors 6.0L
1989 GMC P2500
General Motors 5.7L
2004 GMC Savana 2500
General Motors LM7 5.3L
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Buy Caterpillar 3126 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Caterpillar long block engines. Our 3126 remanufactured long blocks for GMC 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 1998 GMC B7or 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
