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Engine Main Bearing 1W1700 (1W-1700) for Caterpillar 3400 Series Replacement Supplier

Reliable 1W1700 crankshaft bearing components designed for high-load industrial engine environments. Ensure your engine rebuild maintains factory-spec clearance and oil pressure.

1. Technical Specifications of 1W1700 Main Bearing

AttributeDetails
Part Number1W1700 / 1W-1700
Brand CompatibilityCaterpillar (CAT)
Model Compatibility3406, 3406B, 3406C, 3408, 3408B, 3412, 3412C Engine Series
Product NameEngine Crankshaft Main Bearing
TypeTri-metal Heavy Duty Bearing Shell
ConditionBrand New, OEM Standard Replacement
ApplicationExcavators, Power Generators, Marine Engines, Industrial Trucks
Payment TermsT/T, Western Union, MoneyGram
Delivery MethodsDHL, Fedex, EMS, UPS, Air/Sea Freight
MOQ1 Piece
Stock StatusIn Stock / Fast Dispatch Available

2. Why Professionals Choose Our 1W1700 Replacements

Core Purchasing FactorsStandard Aftermarket PartsOur OEM-Grade 1W1700
Material CompositionBasic Aluminum AlloyPremium Tri-metal (Steel Back + Copper Lead + Lead Tin Overlay)
Load CapacityModerateHigh Fatigue Resistance for 3406/3408 Turbocharged Engines
Clearance PrecisionVarying TolerancesStrict Micron-level Clearance for Optimal Oil Film
Heat DissipationAverageSuperior Thermal Conductivity to Prevent Seizing
Service LifeShort to MediumLong-term Durability for Full Overhaul Cycles
CertificationN/AISO 9001 / OEM Manufacturing Standards

3. Troubleshooting Your Caterpillar Engine Main Bearing Issues

Q1: How do I know if my 1W1700 main bearing needs replacement?

A: Common symptoms include a sudden drop in oil pressure, metallic knocking sounds from the lower engine block, or the presence of copper/silver metal flakes in the oil filter during maintenance. Using a high-quality 1W-1700 replacement is critical during a Caterpillar 3406 rebuild.

Q2: What causes premature wear on 1W1700 bearings?

A: Most failures are caused by contaminated lubrication, lack of oil priming during cold starts, or incorrect crankshaft grinding dimensions. Our OEM Standard Replacement bearings provide the necessary embeddability to handle minor particles and protect the crankshaft.

Q3: Why Choose This 1W1700 Main Bearing?

A: OEM-standard tri-metal structure. It is trusted by repair shops and equipment fleets globally for its ability to withstand extreme pressure in industrial and marine applications.

4. Expert Maintenance & Risk Identification

Not sure how this issue affects your equipment?

Our team helps operators achieve maximum uptime by providing technical insights:

  • Identify potential risks during scheduled engine maintenance to prevent catastrophic failure.

  • Recommend suitable replacement parts such as 1W1700 or oversized bearings if needed.

  • Support both inspection advice and professional engine parts supply for global shipping.

Contact Our Sales Team for Bulk Pricing

Talk to our engine specialists for 1W1700 availability and shipping quotes.

About Our Engine Parts Supply Chain

We specialize in complete engine assemblies and precision components for leading brands including Cummins, Komatsu, Caterpillar, Isuzu, Kubota, Yanmar, and Weichai. Our inventory covers a wide range of long-tail keywords for search engine visibility:

Cylinder Liner KitsPiston and Ring SetsMain and Con-rod BearingsThrust WashersFull Overhaul Gasket KitsDiesel Fuel Injection PumpsFuel Injector NozzlesForged CrankshaftsTurbochargersWater PumpsOil PumpsCylinder BlocksCylinder HeadsConnecting RodsEngine Rebuild KitsHeavy Duty Engine PartsMarine Diesel Engine SparesConstruction Machinery PartsGenerator Set ComponentsAftermarket Engine Supplier

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