Cummins B3.3 QSB3.3 Diesel Engine Overhaul Set Liner Piston C6204312190 4941138 Gasket Kit 4955996

Product Details

Product Overview

This comprehensive Diesel Engine Overhaul Set is specifically designed for the Cummins B3.3 and QSB3.3 engine platforms. It includes all critical components required for a complete engine rebuild, ensuring your heavy machinery returns to peak operational performance. The kit integrates genuine-specification parts including the cylinder liner, piston assembly, full gasket kit, and crankshaft bearing set, providing a one-stop solution for engine restoration.

Engineered for durability and precision, this overhaul set is suitable for a wide range of applications including excavators, trucks, forklifts, bulldozers, buses, and loaders. Each component is manufactured to OEM size standards, guaranteeing a seamless fit and reliable long-term service in demanding working conditions.

Key Features & Benefits

• Complete Overhaul Solution: Eliminates the need for sourcing individual parts; includes liner, piston, gasket kit, and crankshaft bearing in one matched set.
• OEM-Specification Fitment: All components are manufactured to the original equipment manufacturer’s dimensional standards, ensuring direct bolt-on compatibility with B3.3 and QSB3.3 engines.
• High-Performance Materials: The cylinder liner and piston assembly are constructed from wear-resistant alloys, while the gasket kit uses multi-layer steel (MLS) technology for superior sealing under high compression.
• Extended Engine Life: The crankshaft bearing (4955996) and main bearings are precision-ground to reduce friction and heat, minimizing wear and extending rebuild intervals.
• Cost-Effective Rebuild: Offers significant savings compared to purchasing individual components, with a 6-month warranty providing assurance against manufacturing defects.
• Rigorous Quality Control: Each set undergoes outgoing video inspection and machinery test reporting to verify dimensional accuracy and material integrity before shipment.

Technical Specifications

OEM Cross-Reference

This overhaul set directly replaces or corresponds to the following OEM and reference numbers. Please verify your engine’s specific configuration before ordering.

• Main Kit Reference: C6204312190
• Gasket Kit: 4941138
• Crankshaft Bearing Set: 4955996
• Related Part Numbers (May be included or compatible): 3926040, 3967224, 3970026, 3970031, 3970032, 3970033 (Consult for specific liner/piston variants)

Note: Cross-reference numbers are provided for identification purposes. Always confirm compatibility with your engine serial number.

Compatibility

This overhaul set is commonly used for the following engine models and applications. Fitment is inferred based on standard OEM specifications for the Cummins B3.3 and QSB3.3 platforms.

• Engine Models: Cummins B3.3, Cummins QSB3.3, Cummins QSB3.3-T, Cummins B3.3T
• Vehicle/Equipment Applications:
  • Excavators (e.g., Komatsu PC series, Hyundai R series)
  • Trucks (Medium-duty box trucks, delivery vehicles)
  • Forklifts (Hyster, Yale, Toyota, Clark)
  • Bulldozers and Loaders (Caterpillar, Komatsu, Case)
  • Buses (School buses, shuttle buses)
  • Agricultural tractors and industrial generators

Please verify your equipment’s engine model and serial number to ensure correct fitment.

Global Supply & Distribution

We offer worldwide shipping capabilities to meet the demands of B2B buyers across all major markets. Our distribution network ensures fast and reliable delivery to key industrial centers.

• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy, Netherlands), Asia-Pacific (Australia, Japan, South Korea, Singapore, Indonesia), Middle East (UAE, Saudi Arabia, Qatar, Kuwait), Africa (South Africa, Nigeria, Kenya), and South America (Brazil, Argentina, Chile).
• Shipping Options: Sea freight (FOB/CIF to major ports like Los Angeles, Rotterdam, Shanghai, Jebel Ali), air freight (DDP/DAP for urgent orders), and express courier (DHL, FedEx, UPS for smaller kits).
• Export Compliance: All products are packaged and documented in accordance with international trade standards, including commercial invoices, packing lists, and certificates of origin. We have extensive experience with customs clearance in over 50 countries.
• Lead Time: Standard orders ship within 7-15 business days. Bulk or customized orders may require 20-30 days.

Quality Assurance

Each overhaul set is produced under strict quality control protocols to ensure performance and reliability.

• Manufacturing Standards: Components are manufactured in ISO 9001-certified facilities, utilizing precision machining and heat treatment processes that meet or exceed OEM specifications.
• Testing Procedures: Every set includes a Machinery Test Report verifying dimensional tolerances. We also provide Video Outgoing Inspection to confirm the integrity of all parts before shipment.
• Warranty Coverage: Backed by a 6-month warranty against manufacturing defects in materials and workmanship. This covers premature wear, dimensional errors, or material failure under normal operating conditions.
• Material Integrity: The liner and piston are made from high-strength cast iron with hardened surfaces, while the gasket kit uses multi-layer steel (MLS) for maximum sealing pressure.

FAQ

Q1: How do I confirm this overhaul set fits my Cummins B3.3 engine?
A: First, locate your engine’s serial number (usually stamped on the engine block near the fuel injection pump). Cross-reference this with your engine model (B3.3 or QSB3.3). If you have the specific part numbers from your old components (e.g., the liner part number or gasket kit number), match them against the list provided above (C6204312190, 4941138, 4955996). For best results, send us a photo of your engine data plate or the old parts for our team to verify compatibility before purchase.

Q2: What is included in the “Gasket Kit” (4941138)?
A: The 4941138 gasket kit typically includes all upper and lower engine gaskets needed for a complete overhaul. This usually comprises the head gasket, valve cover gasket, intake/exhaust manifold gaskets, oil pan gasket, front and rear main seals, and various O-rings. It does not include the head bolts or other fasteners unless specified. Please check the kit contents upon arrival to ensure you have all necessary seals.

Q3: Can I install this set without special tools?
A: While the components are designed for direct replacement, professional installation is strongly recommended. Installing the cylinder liner requires a liner press tool to avoid distortion. The piston rings must be gapped correctly using a feeler gauge, and the crankshaft bearing (4955996) requires precise torque settings. We recommend having a certified diesel mechanic perform the installation to ensure proper seating and alignment, and to validate the warranty.