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Caterpillar Compatible O-Ring Kit

Replacement O-Rings Compatible with Caterpillar Machinery

*All manufacturer’s names, part numbers and descriptions are used for reference purposes only.  Seal Kit - assembled with high quality, aftermarket parts that make up a complete o-ring seal kit.




Image Model+ Item Name Stock Price Quantity Discounts
Replacement Viton Face Seal Kit for 270-0459 Cat 270-0459

Replacement Viton Face Seal Kit for 270-0459 Cat

Viton Face Seal Kit for 270-0459 Caterpillar Kit After Market o-ring kit fits SAE ORFS O-Ring Face Seal. 270-0459 O-Ring Seal Kits O-Ring Seal: 8...
2
$20.00

Add:

Quantity Discounts
1$20.00
2-9$18.00
10+$15.00
Replacement O-Ring Kit for CAT CTC-4C4782 (270-1528) CTC-4C4782

Replacement O-Ring Kit for CAT CTC-4C4782 (270-1528)

O-Ring Seal Kit for 4C4782 (270-1528) Caterpillar Includes 570pcs x 32sizes: 20pc - 4J5477 Buna-N 90 O-Ring 20pc - 6V8397 Buna-N 90 O-Ring 20pc -...
0
$137.40

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Quantity Discounts
1$137.40
2-9$123.66
10+$103.05
O-Ring Kit for CAT NITRILE D-RING KIT 9 SIZES CTC-4C4784 CTC-4C4784

O-Ring Kit for CAT NITRILE D-RING KIT 9 SIZES CTC-4C4784

This handy kit contains the 9 most popular sizes D-Rings used on Caterpillar equip.   *All manufacturer’s names, part numbers and...
0
$134.81

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Quantity Discounts
1$134.81
2-9$121.33
10+$101.11
O-Ring Kit for 270-1539 Cat Face Seal Kit 155 pc x 8 Sizes (4C5859) CTC-4C5859

O-Ring Kit for 270-1539 Cat Face Seal Kit 155 pc x 8 Sizes (4C5859)

O-Ring Face Kit for 270-1539 - 4C5859 Caterpillar This o-ring kit fits SAE ORFS O-Ring Face Seal. 270-1539 O-Ring Seal Kits O-Ring Seal: 8 Sizes,...
2
$20.00

Add:

Quantity Discounts
1$20.00
2-9$18.00
10+$15.00
O-Ring Kit for CAT Silicone O-Ring Kit 149 PCS x 32 Sizes CTC-4C8253 CTC-4C8253

O-Ring Kit for CAT Silicone O-Ring Kit 149 PCS x 32 Sizes CTC-4C8253

O-Ring Kit for CAT SILICONE O-RING KIT 149 PCS x 32 SIZES CTC-4C8253   *All manufacturer’s names, part numbers and descriptions are used...
0
$363.12

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Quantity Discounts
1$363.12
2-9$326.81
10+$272.34
O-Ring Kit for CAT O-ring Kit 7T4515 CTC-7T4515

O-Ring Kit for CAT O-ring Kit 7T4515

O-ring Kit for Caterpillar Equipment Each O-ring kit contains all the o-rings and seals as listed to rebuild your equipment. Unless otherwise noted,...
5
$4.77

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Quantity Discounts
1$4.77
2-9$4.29
10+$3.58
O-Ring Kit for Caterpillar Flange Kit 9S3135 - 2701545 CTC-9S3135

O-Ring Kit for Caterpillar Flange Kit 9S3135 - 2701545

Caterpillar Assorted O-ring Kits 27015545 | 9S3135 Flange Seal Kit This kit contains 90 Durometer Nitrile - Buna-N O-rings. This o-ring kit fits SAE...
0
$11.75

Add:

Quantity Discounts
1$11.75
2-9$10.58
10+$8.81


What are the most common O-ring compounds?

We stock O-Rings in over 20 different compounds and durometers the following six are the standard rubber materials in a range of durometers (Shore A) hardness to satisfy practically any service condition:

Buna-N O-Rings / Nitrile O-Rings / NBR: Nitrile (Buna-N) is the most widely used elastomer due to its excellent resistance to petroleum products, operating temperature range (-40°F to +257°F) and one of the best performance-to-cost values. It's an ideal material for aerospace, automotive, propane and natural gas applications. Special Hydrogenated Nitrile (HNBR) compounds can improve resistance to direct ozone, sunlight, and weather exposure while increasing temperature range to +300°F.
AS-568 Buna-N O-Rings | Metric Buna-N O-Rings

Viton® O-Rings / FKM: Fluorocarbon (Viton®) exhibits exceptional resistance to chemicals, oils, temperature extremes (-13°F to +446°F), low compression set, low gas permeability and excellent aging characteristics. Applications include: aircraft engines, automotive fuel handling systems, and chemical processing industries. FKM is also suitable for high vacuum applications. It is not recommended for exposure to ketones, alkalis, and Skydrol® fluids. Custom compounds are available with improved chemical and low temperature resistance.
AS-568 Viton® O-Rings | Metric Viton® O-Rings

Ethylene-Propylene / EPDM O-Rings: EPDM has outstanding resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (-40ºF to +275ºF); but it is not recommended for gasoline, petroleum oil and grease, and hydrocarbon environments. This popular rubber compound is usually the first choice for low torque drive belt applications.
AS-568 EPDM O-Rings | Metric EPDM O-Rings

Silicone O-Rings / VMQ: In the Silicone family, you will find compounds which are superior as static seals in extreme temperature conditions. Standard compounds handle operating temperatures -85º to +400ºF. Silicone compounds are popular in food and medical applications because they are very clean and do not impart odor or taste. Special Phenyl silicones can be used down to -148°F.
AS-568 Silicone O-Rings | Metric Silicone O-Rings

Neoprene® O-Rings / CR: Neoprene (-40º to +250ºF) is reasonably priced and features good resistance to petroleum oils, ozone, sunlight and oxygen aging, relatively low compression set, good resilience and outstanding physical toughness. It is the preferred sealing material for the refrigeration industry because of its resistance to ammonia and Freon®.
AS-568 Neoprene® O-Rings