Core Features
Excellent material performance
This material is known for its excellent resistance to petroleum based hydraulic oils, fuels, lubricants, and wear. Simultaneously possessing good mechanical strength and elastic recovery ability, it can maintain its shape and sealing performance during long-term use.
Accurate dimensions and tolerances
The strictly controlled production process ensures that the inner diameter, wire diameter, and roundness of each O-ring meet precise tolerance requirements, achieving a tight fit with the equipment groove and eliminating installation difficulties or sealing failures caused by dimensional deviations.
Wide environmental adaptability
The design has a wide working temperature range (usually -40 ° C to+120 ° C), which can cope with the challenges of harsh working conditions such as extreme cold and heat in construction machinery, effectively resist ozone and aging, and extend the service life.
Key application assurance
Although this sealing ring is small, it is the cornerstone of leak free operation of the equipment. A failed O-ring may cause pressure loss, oil contamination, and even component damage. The use of high-quality sealing rings is key to preventive maintenance and low-cost repairs.
Typical application scenarios
Hydraulic system: used for static and dynamic sealing of hydraulic cylinders, valve blocks, pumps, and pipe joints.
Engine system: installed at interfaces such as fuel lines, oil coolers, filter seats, etc.
Daily maintenance and repair: It is a necessary spare part for equipment overhaul, system modification, or daily leak repair.
Procurement Guidelines
Ningbo Qiuning Trading Co., Ltd. is well aware of the dual considerations of performance and cost in spare parts procurement. For this, we offer two options:
Original factory standard products: Strictly benchmarking the materials and specifications of original parts, pursuing consistent performance and reliability, suitable for customers with strict quality requirements.
High cost-effective alternative solution: Using validated compliant materials and processes, while ensuring core sealing function and service life, providing more cost-effective options to meet diverse budget needs.
Installation and Precautions
Before installation, please thoroughly clean the sealing groove and surrounding area to ensure that there is no dust, metal debris, or residual old seals.
Suitable lubricants (such as silicone grease) can be used during installation to reduce friction and prevent twisting or scratching during installation.
Regularly check the condition of the seals, and replace them promptly if hardening, deformation, wear, or permanent compression deformation is found.
Choosing Ningbo Qiuning Trading means choosing reliable product supply and professional technical support. We are committed to providing safe and effective sealing solutions for your Caterpillar equipment, ensuring efficient operation and reducing unexpected shutdowns.
Our company provides more engine assemblies and accessories of different brands and models
If you are interested, please add my contact information directly:
WeChat/WhatsApp：+8615888032469
E-mail： allen@perkins-rx.com
Remarks: The model or serial number processing is faster and the price is more favorable
The following Caterpillar piston rings are in stock. Welcome to place your order.
Part number Specification model unit
100-6694 3300 pieces
103-2857 C10 cylinder pair
109-5318C10/3176B sheet
109-5319 C10/3176B sheet
112-7020 3400 pieces
123-4268 3,500 pieces
130-3997 3200 pieces
133-7053 C10 tablets
134-3761 3400 pieces
161-3425 C9 tablets
164-4187 3400 pieces
168-7209 C9 tablets
176-5749 3400/C15 pieces
177-7496 3400/C15/ sheet
197-9299 C9 pieces
197-9341 C12
Cylinder pair 1N3967
Cylinder pair 1P0734 D340/343/346/348
Cylinder pairs of 1W5105 D353/379/398/399
1W9460 3400 pieces
216-8570 C, 12 pieces
238-2704 C12 pieces
2P2817 3400 pieces
2W6091 3300 cylinder pair
Cylinder pair 2W8646 3200/020
The following Caterpillar main bearing shells are in stock. Welcome to visit.
Part number, name, specification and model
1W1661 main shaft bearing 3204, O/S:0.010
4W5492 main shaft bearing CAT3406/3408
4W5492-020 main bearing bush
4W5698 main shaft bearing CAT3406/B/C
4W5738 main bearing bush
5I7588 main bearing bush
5I7784 spindle bearing S6K/3066/0.25
5I7785 spindle bearing S6K/3066/0.50
7C6962 main shaft bearing 3114/3116
7C6963 main shaft bearing 3114/3116
7C6973 main shaft bearing 3114/3116
8N7926 main bearing bush
8N8225 main bearing bush
8N8976 main shaft bearing CAT3204
8N9020 main shaft bearing CAT3204
8N9023 main shaft bearing CAT3204
