1987 GMC General 3406 14.6 Caterpillar Remanufactured Long Block Engine
DIESEL • Dyno Tested • Warranty Included

About This Caterpillar 3406 Remanufactured Long Block
Looking for a quality remanufactured long block engine for your 1987 GMC General? US Engine Production offers premium remanufactured Caterpillar 3406 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 3406 Problems We Address
Our remanufacturing process specifically addresses these known issues with Caterpillar 3406 engines:
- Injector sleeve erosion
- Water pump failures
- Turbocharger oil leaks
- Cylinder liner wear
- Fuel transfer pump failures
- Timing gear wear
Our technicians use updated components and improved techniques to prevent these common failures in your remanufactured engine.
Engine Specifications
GMC Vehicle Compatibility
Caterpillar 3406 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: 1987 GMC General Caterpillar 3406 Remanufactured Engine
A remanufactured Caterpillar 3406 14.6L engine typically costs 40-60% less than a brand new engine from the dealer, making it the most cost-effective option for your 1987 GMC General. 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 3406 remanufactured long block for your 1987 GMC General, 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
"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."
"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."
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 3406 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 General
1986 GMC General
1988 GMC General
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1988 GMC General
Cummins N14 14L
1985 GMC General
Detroit Diesel 8V-92 12.1L
1983 GMC General
Detroit Diesel 6V-92N 9L
1982 GMC General
Detroit Diesel 6V-92N 9L
1986 GMC General
Caterpillar 3406 14.6L
1981 GMC General
Cummins N14 14L
Vehicles with Caterpillar 3406 Engine
This same engine is also available for these vehicles
1989 Freightliner FLC112
3406 14.6L DIESEL
1987 Kenworth K100E
3406 14.6L DIESEL
1989 Mack RW
3406 14.6L DIESEL
1995 Western Star 4900
3406 14.6L DIESEL
1995 Peterbilt 362
3406 14.6L DIESEL
1984 Freightliner FLT086
3406 14.6L DIESEL
1989 Ford LL9000
3406 14.6L DIESEL
1982 Autocar ACL
3406 14.6L DIESEL
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1999 GMC Sierra 1500
General Motors LM7 5.3L
1986 GMC K1500
General Motors 5.7L
2011 GMC Sierra 1500
General Motors L20 4.8L
2010 GMC Sierra 2500 HD
General Motors L96 6L
1999 GMC Savana 2500
General Motors L65 6.5L
1986 GMC C3500
General Motors 5L
2013 GMC Sierra 2500 HD
General Motors LML 6.6L
More Caterpillar Engines
Explore other Caterpillar engine models we carry
1986 White WHL
Caterpillar 3406 14.6L DIESEL
2007 Freightliner FLD120SD
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1996 Freightliner FLD120
Caterpillar 3406 14.6L DIESEL
1987 Peterbilt 349
Caterpillar 3306 10.5L DIESEL
1982 Ford LT8000
Caterpillar 3208 10.4L DIESEL
2009 Kenworth C500
Caterpillar C13 12.5L DIESEL
2001 Sterling Truck LT8513
Caterpillar 3126 7.2L DIESEL
2004 Freightliner FS65
Caterpillar C7 7.2L DIESEL
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Buy Caterpillar 3406 Remanufactured Long Block Engines
US Engine Production is your trusted source for remanufactured Caterpillar long block engines. Our 3406 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 1987 GMC Generalor 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.
