
NC-000559 · Cylinders
289-2937 Seal A – Fits Caterpillar
CAD 9.43
In stockSeal A – reference 289-2937. Catalogue-listed applications: Caterpillar 442D, AD45, 930H, D7R II, 428B, 621E, 773G. Length: 80.01 mm; Width: 80.01 mm. View photos, specifications, CAD pricing and delivery options from NorthCore.
Standard delivery: 3–7 business days. Other services and estimates are shown at checkout. Minimum online order: CAD 100 in parts, excluding shipping and tax. Add this part to your cart to calculate delivery and review your order.
Part specifications and references
- NorthCore code
- NC-000559
- Reference numbers
- 289-2937, 8C3839, 3Y8949, 5J3620
- Listed package quantity
- 1
- Length
- 80.01 mm
- Width
- 80.01 mm
- Depth
- 5.08 mm
Product information and configuration
Quantity indicated in catalogue: 1 Replacement part: Seal A Fits Caterpillar 8C-3839, 3Y8949, 5J3620. Configuration: Hydraulic Rod Buffer Seal for Caterpillar (Cat) Equipment This is an aftermarket replacement hydraulic rod buffer seal (Seal Assembly, Type B) for Caterpillar (Cat) construction and agricultural equipment. The 8C-3839 is a two-piece bronze-filled PTFE buffer seal with a rubber energizer that acts as a secondary rod seal, protecting the hydraulic cylinder rod from sudden increases in system pressure and pressure spikes. It is designed for use in Caterpillar hydraulic cylinders on a wide range of machines including wheel tractor-scrapers, track-type tractors, motor graders, backhoes, wheel loaders, and underground articulated trucks. Specifications Type: Hydraulic Rod Buffer Seal (Type B - Bronze Filled PTFE with rubber energizer) Material: Bronze Filled PTFE / Rubber Energizer Nominal Inner Diameter: 2.5 in (2-1/2 in) Rod Diameter Housing Diameter: 3.141 in (3-1/8 in) Nominal Height (Depth): 0.20 in Groove Width: 0.22 in Pressure Range: 0 to 5000 psi Temperature Range: -40 degrees F to 220 degrees F Overall Dimensions: 3.15 in L x 3.15 in W x 0.20 in D Compatible Models Caterpillar Backhoe Loaders: 416, 416B, 416C, 416E, 426, 426B, 426C, 424D, 428B, 428C, 428D, 432D, 436C, 438, 438C, 438D, 442D Caterpillar Motor Graders: 14M-3 (14M3), 16, 16G, 18 Caterpillar Wheel Tractor-Scrapers: 621E, 621K, 621K OEM, 623E, 623F, 623G, 623K, 623K LRC, 627E, 627K Caterpillar Wheel Loaders: 924G, 924GZ, 924H, 924HZ, 928G, 928HZ, 930H, 938F, 988H Caterpillar Track-Type Tractors: D5, D6GC, D7, D7H, D7R II Caterpillar Integrated Toolcarriers: IT24F, IT28F, IT28G Caterpillar Off-Highway Trucks / Underground Trucks: 773G, 773G LRC, 773G OEM, 775G, 775G LRC, 777G, AD45, AD55 Caterpillar Track Loaders: 953C Caterpillar Load Haul Dump / Underground Loaders: R1300, R1700 II, R1700G, R2900, R2900G, R3000H Caterpillar Excavators / Other: 227, 322B L, 322C FM, 325B L, 330B L, 350, 350 L, 375, 375 L, 550, 570, 570B, 580, 580B, 611, 785, 824C Replaces Part Number(s): 8C3839, 8C-3839, 3Y8949, 3Y-8949, 5J3620, 5J-3620, 289-2937, 2892937 Aftermarket Interchange Numbers 1672201, 167-2201, CTC-8C3839, RCAT-8C3839, 5J-3620-A New aftermarket replacement part - not remanufactured, not used. Additional specifications: Length: 3.15” Width: 3.15” Depth: 0.20” Seal Reference numbers: 289-2937, 8C3839, 3Y8949, 5J3620
Catalogue-listed applications
Use these as reference information. Check the part numbers, specifications and any application restrictions against your equipment.
- Caterpillar 442D
- Caterpillar AD45
- Caterpillar 930H
- Caterpillar D7R II
- Caterpillar 428B
- Caterpillar 621E
- Caterpillar 773G
- Caterpillar 438C
- Caterpillar D5
- Caterpillar 621K
- Caterpillar 18
- Caterpillar 775G
- Caterpillar 928HZ
- Caterpillar 623K
- Caterpillar 428D
- Caterpillar 428C
- Caterpillar 924HZ
- Caterpillar 623G
- Caterpillar 420F
- Caterpillar 424D
- Caterpillar 775G LRC
- Caterpillar 16G
- Caterpillar 623E
- Caterpillar 420E
- Caterpillar 623K LRC
- Caterpillar 14M3
- Caterpillar 438D
- Caterpillar 773G LRC
- Caterpillar 416B
- Caterpillar 432D
- Caterpillar IT24F
- Caterpillar D7H
- Caterpillar 416E
- Caterpillar D7
- Caterpillar 416C
- Caterpillar R1700 II
- Caterpillar R2900
- Caterpillar 928G
- Caterpillar 16
- Caterpillar IT28F
- Caterpillar 777G
- Caterpillar 14M-3
- Caterpillar 773G OEM
- Caterpillar 924H
- Caterpillar IT28G
- Caterpillar R1300
- Caterpillar AD55
- Caterpillar 426C
- Caterpillar 623F
- Caterpillar 924GZ
- Caterpillar 988H
- Caterpillar R3000H
- Caterpillar R1700G
- Caterpillar 938F
- Caterpillar 621K OEM
- Caterpillar R2900G
- Caterpillar 627K
- Caterpillar 924G
- Caterpillar 953C
- Caterpillar D6GC
- Caterpillar 436C
Application notes
- One New Aftermarket Replacement Hydraulic Rod Buffer Seal for Caterpillar (Cat) Equipment
- This is an aftermarket replacement hydraulic rod buffer seal (Seal Assembly, Type B) for Caterpillar (Cat) construction and agricultural equipment. The 8C-3839 is a two-piece bronze-filled PTFE buffer seal with a rubber energizer that acts as a secondary rod seal, protecting the hydraulic cylinder rod from sudden increases in system pressure and pressure spikes. It is designed for use in Caterpillar hydraulic cylinders on a wide range of machines including wheel tractor-scrapers, track-type tractors, motor graders, backhoes, wheel loaders, and underground articulated trucks.
- Type: Hydraulic Rod Buffer Seal (Type B - Bronze Filled PTFE with rubber energizer)
- Aftermarket Interchange Numbers
- New aftermarket replacement part - not remanufactured, not used.
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