
Product Overview
This premium connecting rod screw is engineered as a direct replacement for Caterpillar C6.6 diesel engines. Manufactured to stringent OEM specifications, it ensures reliable performance in demanding industrial and vehicular applications. We specialize in global B2B supply, serving major markets across North America, Europe, the Middle East, and Asia-Pacific with efficient logistics to key industrial hubs and ports.
Key Features & Benefits
- Precision Engineered: Manufactured to exact OEM dimensions and tolerances for a perfect fit and optimal clamping force.
- High-Strength Material: Constructed from premium alloy steel, heat-treated for exceptional tensile strength and fatigue resistance under high-load conditions.
- Reliable Performance: Ensures secure connecting rod assembly, preventing rod cap movement and protecting crankshaft and bearing surfaces from damage.
- Cost-Effective Solution: Offers a reliable, high-quality alternative to genuine parts, reducing downtime and maintenance costs for fleet operators and workshops.
- Comprehensive Support: Backed by machinery test reports and video outgoing-inspection documentation for quality verification.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Type | Connecting Rod Screw / Bolt |
| Compatible Engine Model | Caterpillar C6.6 |
| Engine Type | Diesel |
| Size | OEM Standard Size |
| Warranty | 6 Months |
| Weight (Approx.) | 1 kg |
| Place of Origin | Guangdong, China |
| Packing | Plastic Bag, Box, Carton |
| Selling Units | Single Item |
| Quality Documentation | Machinery Test Report Provided, Video Outgoing-Inspection Provided |
OEM Cross-Reference
This part serves as a direct replacement for the genuine Caterpillar connecting rod screw used in the C6.6 engine platform. For precise cross-referencing, please consult your engine service manual or contact our technical support with your existing part number. We recommend replacing connecting rod screws as a complete set per cylinder.
Compatibility
Primary Engine Application:
- Caterpillar C6.6 Diesel Engine
Typical Vehicle & Machinery Applications:
- Forklifts
- Bulldozers
- Excavators
- Loaders (Wheel Loaders, Skid-Steer Loaders)
- Medium-Duty Trucks
- Buses & Coaches
- Industrial Power Units & Generator Sets
Global Supply & Distribution
We are a professional exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. Our streamlined supply chain ensures reliable delivery to key global markets:
- Major Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Southeast Asia, Middle East, South America, and Africa.
- Fast Delivery: We coordinate shipments via air and sea freight to major ports and inland logistics centers worldwide, offering FOB, CIF, and DAP terms to suit your needs.
- B2B Focus: We support wholesale, distributor, and large fleet procurement with MOQ flexibility and dedicated customer service.
Quality Assurance
Our commitment to quality ensures you receive parts that meet professional repair standards:
- Manufacturing Standards: Produced in ISO-certified facilities using CNC machining and controlled heat-treatment processes.
- Warranty: All parts are covered by a 6-month warranty against manufacturing defects.
- Testing & Inspection: Each batch undergoes rigorous dimensional checks, material analysis, and performance validation. Documentation, including test reports, is available upon request.
- Packaging: Parts are securely packed to prevent corrosion and damage during international transit.
FAQ
Q: Is this connecting rod screw a direct fit for my Caterpillar C6.6 engine?
A: Yes, this part is manufactured to the exact OEM specifications for the Caterpillar C6.6 engine. It is designed as a direct replacement and requires no modification for installation.
Q: Should connecting rod screws be replaced during an engine rebuild?
A: Yes, it is a critical best practice. Connecting rod bolts are torque-to-yield (TTY) or precision torque-critical fasteners in most modern engines, including the C6.6. They are designed for one-time use as they stretch during proper installation to achieve the correct clamping force. Reusing old bolts can lead to failure, resulting in catastrophic engine damage. Always replace with new screws during any connecting rod service.
Q: Do you provide the necessary torque specifications for installation?
A> While we manufacture the part to specification, final installation torque and procedure (which may include angle tightening) are determined by the engine manufacturer’s latest service manual. We strongly recommend consulting the official Caterpillar service documentation for the correct, engine-specific tightening sequence and specification to ensure proper assembly and warranty compliance.
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 .