Product Overview

This premium bearing set is engineered for the Caterpillar C4.4 diesel engine, a workhorse in construction and industrial machinery worldwide. We supply high-performance engine components to a global B2B clientele, with established logistics for major markets including North America, Europe, the Asia-Pacific region, and the Middle East. This kit includes both main bearings and connecting rod bearings, manufactured to exacting standards for a precise, reliable fit and optimal engine longevity.

Key Features & Benefits

• Precision Engineering: Manufactured to strict OEM tolerances for perfect fitment and consistent oil clearance, ensuring proper lubrication and reduced wear.
• Enhanced Durability: Constructed from high-grade materials with advanced overlay technology to withstand high loads and pressures, extending engine service intervals.
• Optimal Performance: Designed to maintain correct crankshaft alignment and minimize friction, contributing to sustained engine power output and fuel efficiency.
• Reliable Supply: Sourced from trusted manufacturers and backed by our global inventory network, ensuring availability for your critical rebuild projects.

Technical Specifications

OEM Cross-Reference

This bearing set directly replaces the following OEM part numbers:

• Caterpillar: T427334, T410927

Always verify part numbers against your engine’s specific serial number for absolute compatibility.

Compatibility

This bearing set is designed for use in Caterpillar C4.4 diesel engines. The C4.4 engine is commonly found in a wide range of Caterpillar machinery, including:

• Excavators (e.g., 308, 311, 312 variants)
• Backhoe Loaders
• Skid Steer Loaders
• Industrial Power Units
• Generator Sets

Applicable to engine builds across multiple year ranges. Please consult your equipment service manual for specific model-year application.

Global Supply & Distribution

We are a dedicated B2B supplier for the heavy equipment aftermarket with a robust international supply chain. Our capabilities include:

• Worldwide Shipping: Reliable export to all major industrial regions via air and sea freight.
• Key Market Access: Regular shipments to ports and logistics hubs in North America (USA, Canada), the European Union, the UK, Australia, Southeast Asia, and the GCC countries.
• Fast Delivery: Streamlined logistics ensure timely delivery to keep your operations running and reduce equipment downtime.
• Trade Compliance: All exports are handled with complete commercial documentation (Invoice, Packing List, Certificate of Origin) in full compliance with international trade regulations.

Quality Assurance

Every component we supply meets rigorous quality standards to ensure performance and reliability.

• Manufacturing Standards: Produced using ISO-certified processes, with materials and dimensions verified against OEM specifications.
• Warranty: Backed by a standard warranty against manufacturing defects. Contact us for specific warranty terms.
• Testing: Bearings undergo dimensional accuracy checks, surface finish analysis, and material composition verification to guarantee they meet the required performance criteria.

FAQ

Q1: Are these bearings an exact fit for my Caterpillar C4.4 engine?
A1: Yes, this bearing set (T427334 / T410927 STD) is engineered as a direct replacement for the OEM parts in the C4.4 engine. For optimal results, always perform standard engine machining checks (crankshaft journal measurements, block alignment) during installation to confirm the correct STD size is required.

Q2: What is included in this set?
A2: This set includes a complete suite of bearings necessary for a bottom-end rebuild: all required main bearings and connecting rod bearings for the Caterpillar C4.4 engine, in the standard (STD) size.

Q3: Do you provide technical support for installation?
A3: While we supply the parts, installation should be performed by a qualified technician familiar with diesel engine overhaul procedures. We recommend consulting the official Caterpillar service manual for detailed torque specifications, clearance checks, and installation sequences to ensure a successful rebuild.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .