Product Features
The Caterpillar 3P-0656 O-Ring is engineered with precision to provide excellent sealing performance in a variety of applications. With its durable construction, it prevents fluid and gas leakage, ensuring operational safety and stability. This O-ring is compatible with multiple Caterpillar models, making it versatile and easy to integrate into different machinery systems.
Product Advantages
High Durability: Manufactured from high-quality materials, the 3P-0656 O-Ring withstands long-term usage without deformation.
Heat and Pressure Resistance: Works effectively in environments where high temperatures and pressures are common.
Reliable Sealing: Provides secure sealing that prevents leaks, protecting your machinery from unnecessary downtime and costly repairs.
Versatility: Suitable for engines, pumps, hydraulic components, and various Caterpillar equipment.
Cost-Effective Maintenance: Reduces replacement frequency, helping lower long-term operational costs.
Product Functions
The main function of the Caterpillar 3P-0656 O-Ring is to ensure an airtight and leak-free seal in mechanical assemblies. In engines, it prevents oil leakage and maintains internal pressure for efficient combustion. In hydraulic systems, it avoids fluid escape and helps maintain stable pressure levels. Its performance is vital for minimizing wear, enhancing system reliability, and supporting consistent equipment productivity.
Installation Methods
Installing the 3P-0656 O-Ring is straightforward:
Preparation: Ensure the installation surface is clean and free of debris.
Lubrication: Apply a small amount of compatible lubricant to the O-ring for easier fitting.
Placement: Carefully position the O-ring into the designated groove.
Final Check: Confirm it is seated evenly without twists or distortions.
Correct installation guarantees a longer lifespan and reduces the risk of premature wear.
Company Advantages
Ningbo Qiuning Trading Co., Ltd. is a trusted supplier offering a wide range of genuine engine and machinery components. Customers choose us because:
Reliable Sourcing: We provide original products that ensure compatibility and performance.
Competitive Pricing: We maintain cost-effective solutions without compromising on quality.
Global Reach: We serve international clients with efficient logistics and fast delivery.
Professional Service: Our experienced team offers product guidance, after-sales support, and flexible purchase options.
Customer Value
By choosing the Caterpillar 3P-0656 O-Ring from Ningbo Qiuning Trading Co., Ltd., customers gain confidence in both product quality and supplier reliability. This ensures that equipment maintenance is simplified, machine downtime is minimized, and productivity is maximized.
Contact Information
For orders and inquiries, please contact us directly:
WeChat/WhatsApp: +86 15888032469
Email: allen@perkins-rx.com
We are ready to provide fast responses, detailed product information, and personalized service to meet your specific requirements.

Exhaust manifold 1633103 Fan pump 2478968
Exhaust manifold 1738352 seal 2590891
Exhaust manifold 1738353 hydraulic pump assembly 2667952
High-temperature resistant bolt 2N2765 cylinder head 2811640
High-temperature resistant nut 2N2766 radio 3068802
Conical locking double-ended bolt 1061793 multi-way valve assembly 3526870
Lock washer 5M2894 bearing 4B3665
Spacer sleeve 1083612, seal 6E5412
Spacer sleeve 1149223 ring 6I6788
Conical locking double-ended bolt 3K3256 retaining ring 6V5590
Nut: 6V8801 ring: 7Y4633
Spring repair kit 2263939 Seal 9N1756
Shield assembly 2056344, bucket pin 2185433
Shield assembly 2056345 elbow 5K9243
Shield assembly 2056346 clamp 8T6703
Shield assembly 2309554 machine foot pads 1476982
Gasket 1P0436 machine foot gasket 1476983
O-ring 6V5049, shell discharge filter element 2237809
Fuel temperature sensor 1022240 hose 2181123
Hose assembly 1129265 Rotary motor bolt gasket 2676787
Hose assembly 1256797 Oil pan gasket 1880210
Hose assembly 1287135 O-ring 5H6734
Hose assembly 1316833 pin 2M5652
Hose assembly 1388745 Right track 1421803
O-ring 336033, left track 1421804
Our company also sells the following products:
Model 1R1808 Caterpillar oil filter element of the same type
4N-0313; 4N-5823; 4P-2839; 4S-8337; 4S-8340;
4S-8598; 4S-8833; 4S-8834; 4T-0522; 4T-0523;
4T-3131; 4T-6788; 4T-7948; 4W-4840; 8N-9850;
8T-8076; AR-43605; KRJ 5170; 094-4412
The main function of the Carter oil filter is to filter the engine oil inside the engine, improving its cleanliness and lubrication. Clean engine oil is supplied to the crankshaft, connecting rod, camshaft, turbocharger, piston rings and other moving pairs to play a role in lubrication, cooling and cleaning, thereby reducing the wear of the engine, enabling it to function at its best and extending the service life of these components.
1R0716 Caterpillar oil filter of the same model
4A-0332; 4H-8792; 4J-0816; 4J-6064; 41-8463;
41-9851; 41-9852; 41-9853; 4M-8047; 4M-8047;
4M-8048; 4M-8048; 4M-9334; 4M-9335; 4M-9378;
4M-9379; 4N-0015; 4N-0313; 4N-0326; 4N-0326
Just like the blood circulation system of the heart, the oil in the oil pump is also constantly circulating. During this process, many unexpected impurities are often produced, and such unclean substances need to be filtered out by the oil filter element.
Model 1R1808 Caterpillar oil filter element of the same type
4N-0313; 4N-5823; 4P-2839; 4S-8337; 4S-8340;
4S-8598; 4S-8833; 4S-8834; 4T-0522; 4T-0523;
4T-3131; 4T-6788; 4T-7948; 4W-4840; 8N-9850;
8T-8076; AR-43605; KRJ5170; 094-4412.
Caterpillar Belt 7C-8236
2W-2531 7C-2163 7C-8236 1P-9744 4N-7335 9N-1329 1N-3743 2P-6820 2P-6819 4N-9891 9Y-1131 2P-6818 1W-2934
1P-3085 4P-0454 1P-4334 3P-0130 2P-6212 9Y-6117
Caterpillar Belt 4N-6130
2P-4191 068-0610 9L-6125 9L-6125 8N-0503 2P-4685
2S-2743 4N-7610 2P-4230 1P-6868 1P-4313 2P-6161
Caterpillar Engine Belt 9L-4479
2P-8720 2P-8720 7W-5207 1N-3795 1W-9693 8M-0760
117-0030 9N-1321 7C-9001 9N-1320 9N-1320 6N-7721 9Y-0290 6N-3636
Caterpillar Belt 1W-8043
9Y-8864 9Y-0291 6N-3637 5R-7276
1N-8405 7L-4528 2N-0159 7N-3157 7L-5091 7N-3158 1N-9310 4H-0552 2L-1478 004-0909 061-8384 036-6775 7E-0744
030-3289 037-2448 036-2176 030-3291 5L-3979 1N-4635
Caterpillar Belt 8N-3504
9L-4896 001-5645 9L-1126 4M-6291 061-7139 1W-5555
5L-3834 4L-6060 9M-1091 8L-8646 6L-3408 9L-2248 6N-3113 3K-3408 8S-3199 7M-6104 7S-9807 2P-6142 7M-6105 1P-2423
7M-6100 4S-7754 7S-98117S-9860 8M-1714 3N-8258 1S-1126 5S-9078 5S-9079 7S-1690 7S-9810 5M-5343 7M-5535 4N-4105
9M-6933 2P-6140 2P-2357 6N-2348 7S-8350 8S-6178 5R-2455
Caterpillar Belt 4N-4773
5S-0291 2S-8268 4N-1745 3S-9646 7N-7502 4M-9678
3R-2689 7M-3921 3P-0025 4M-6292 1P-2421 5M-2733 7S-9859 8M-1715 8M-1715 2P-2356 9M-5146 9M-3633 4M-9072 7M-7373
2S-5279 5S-1762 5F-7676 5H-2896 5H-9857 4N-6529
Caterpillar Belt 7M-4715
2P-2369 8N-4128 2P-2696 7M-4716 2P-1388 7M-0981 4N-3587
7M-7476 7L-7099 7M-7864 5L-5015 9M-7221 2S-6913 3P-0071 7M-4706 7M-4707 5L-5656 7M-4719 7M-4705 7M-4702 3P-0098
7M-0185 8S-1475 7M-4947 7M-4717 7M-4703 7M-4704 7M-4718
Caterpillar Belt 5L-5014
2S-6168 5L-9902 8M-9708 4M-8218 3S-2347 5M-5347
6B-8536 2P-1272 2M-8183 2P-8624 7C-3559 2W-8951 7M-4701 2W-6766 2W-8952 7N-3965 1S-1207
Caterpillar Belt 6N-7575
4W-7508 7W-6471 7W-1665 4W-5091 9Y-8467 2S-5279 5L-6672 6L-6552 6B-1039 7B-4032 4F-7956 5H-4239 100-3725 7E-4841 7B-2774 8H-7180
9Y-1954, 7E-3898, 1W-8908, 4W-5825, 6L-6213, 4N-8216, 9L-6643,9L-6651, 6N-6652, 9N-1324
Caterpillar Belt 8N6700