Overview / Description

Genuine Caterpillar 346-4897 Seal-O-Ring (alternate format 3464897). This is a Cat® fluoroelastomer (FKM/Viton-type) O-ring measuring 3.53 mm cross section x 40.87 mm inside diameter (0.139 in x 1.609 in), 75A durometer, corresponding to AS568 dash size 223.

O-rings of this type are used for static sealing and some dynamic sealing duty, forming a leak-tight barrier between mating housings, covers, ports, adapters and fittings. Cat® O-ring compounds are matched to the fluids, temperatures and pressures found in Cat engines and machines, resisting wear, extrusion and compression set.

Key Features

• Genuine Caterpillar part number 346-4897 / 3464897
• FKM (fluorocarbon / Viton-type) elastomer for superior resistance to fuels, oils and high temperature
• 75A Shore hardness for a balance of sealing conformity and extrusion resistance
• Nominal size 3.53 mm CS x 40.87 mm ID (0.139 in x 1.609 in), AS568 dash 223
• Suitable for static sealing and selected dynamic sealing applications
• Resists wear, extrusion and seal compression set
• Very light, low-cost consumable that protects against leaks and contamination
• Widely used across Cat engine, powertrain and hydraulic groups

Applications / Compatibility

Listed by Caterpillar parts catalog data under the following product groups:

• Industrial / Petroleum / Truck Engines: C11, C13, C15, C18, C27, C32
• Generator Sets: C13, C13 XQ350, C15, C27; Petroleum Gen Set C27
• Petroleum Packages: CX31-C13I, CX31-C18I, CX35-C18I, TH35-C11I, TH35-C13I
• Excavators: 345C, 345C L, 345C MH, 345D, 345D L, 345D L VG, 349D, 349D L, 349E, 349E L, 349E L VG, 349E L HVG, 349F L, 374F L, W345C MH
• Articulated / Ejector Trucks: 725, 730, 730C, 735B, 740B
• Off-Highway Trucks: 770G, 772G, 773F, 773G, 775F, 775G, 777G
• Wheel Loaders: 966H, 966K, 966M XE, 972H, 972M XE, 980C, 980K, 980K HLG, 980M, 982M, 986H, 988K, 990K, 992K, 993K
• Wheel Dozers: 824K, 834K, 844K, 854K
• Track-Type Tractors: D6T XL, D7E, D7E LGP, D8N, D8T, D9T, D10T2, D11T
• Motor Graders: 14M, 16M
• Wheel Tractors / Scrapers: 621H, 621K, 623H, 623K, 623K LRC, 627H, 627K, 627K LRC
• Compactors: 825K Soil Compactor, 826K Landfill Compactor
• Underground / Other: R1600H, R1700G Load Haul Dump; RM-300 Reclaimer Mixer; Mobile Hyd Power Unit 345C L, 349D L, 349E, 349E L HVG

Always confirm the part number in your machine-specific parts book before ordering.

Cross-References / Part Interchanges

Supersession / Replaced Numbers

• Caterpillar — 0618561
• Caterpillar — 618561

Alternate Catalog Formats (same part)

• Caterpillar — 346-4897
• Caterpillar — 3464897
• Caterpillar — CA3464897

Aftermarket Equivalent

• CTP (Costex) — 140190
• AS568 industry size — Dash 223 (3.53 mm x 40.87 mm), FKM 75A

Technical Data / Specifications

Product Type	Seal, O-Ring
Inside Diameter	40.87 mm (1.609 in)
Cross Section Diameter	3.53 mm (0.139 in)
Approx. Outside Diameter	47.93 mm (1.887 in)
AS568 Dash Size	223
Material / Polymer	FKM fluoroelastomer (fluorocarbon / Viton-type)
Durometer / Hardness	75A Shore
Color	Not Available
Sealing Type	Static sealing and some dynamic applications
Pressure Rating	Not Available
Operating Temperature Range	Not Available
Thread / Port Size	Not Applicable
Mounting	Seated in machined O-ring groove
Part Weight	Approx. 0.01 lb (about 5 g)
Standards	AS568 size series (dash 223)
Quantity in This Listing	1 piece

Identifiers and Additional Information

Manufacturer	Caterpillar Inc.
Manufacturer Part Number	346-4897
Alternate Number Format	3464897
Calfrac SKU	346-4897
OEM Numbers	346-4897 / 3464897 / CA3464897
Superseded Numbers	0618561, 618561
Aftermarket Number	CTP 140190
VMRS Code	Not Available
VMRS Description	Not Available
UPC / GTIN	Not Available
Country of Origin	Not Available
Cat Catalog Category	Hardware, Seals & Consumables > Seals, Gaskets & O-Rings > O-Rings

Buyer Note

Please compare the part number on your original component to the number in this listing before purchasing. O-rings are size-critical: independently verify inside diameter, cross section, groove dimensions, material compatibility with your fluid, and the application against your machine serial number, model and parts book. If you are unsure of fitment, contact us with your serial number prior to purchase.

Condition

All items sold by our store are new, unused, and have been stored indoors in a controlled warehouse environment. The majority of our parts are genuine OEM components sourced from surplus inventory and have never been installed or placed into service.

Please note that packaging condition may vary due to warehouse storage, handling, age, or inventory consolidation. Original manufacturer's packaging may show signs of wear such as scuffs, tears, labels, markings, tape residue, dust, or discoloration. In some cases, items may be repackaged for storage or shipping purposes.

While the external packaging may not be in perfect condition, the part itself remains new and unused unless otherwise stated in the listing. Customers should review all listing photos carefully, as the item shown is representative of the actual product being sold. If you have any questions regarding item condition, packaging, compatibility, or specifications, please contact us prior to purchase.