Sealing Caps & Protective Plugs for Sale

Working with heavy-duty trucks, trailers, and equipment can lead to costly damage without proper protection. When maintaining hydraulic systems, protecting bearings, or securing ports during operation, your team needs sealing solutions that will prevent contamination and extend component life.

At Custom Truck One Source, we understand that system integrity is at the center of your business. We offer our own engineered sealing caps and protective plugs, as well as equipment and accessories by other great brands.

Browse our wide variety of sealing caps and increase your fleet maintenance capabilities.

What Are Sealing Caps?

Sealing caps are protective components that prevent contamination and maintain system integrity by blocking entry of water, dirt, debris, and corrosive substances. You might use sealing caps to protect hydraulic fittings, bearing housings, fluid reservoirs, or any open ports during operation or storage.

From threaded caps that secure hydraulic systems to press-fit plugs, bearing end caps, protective port covers, and more, you can count on our team to help find what’s right for a job. Custom Truck also has sealing components available for some of the most competitive prices on the market, making it affordable to expand your protection portfolio.

Uses for Our Sealing Caps

Professionals use our sealing caps for various maintenance and protection needs. Our selections are used by fleet operators, service companies, and equipment manufacturers responsible for maintaining commercial vehicles and heavy-duty systems.

We assist customers in finding sealing caps for applications including:

  • Protecting hydraulic and pneumatic fittings from contamination.
  • Sealing bearing housings and wheel-end assemblies.
  • Covering threaded ports during transport and storage.
  • Maintaining fluid system integrity in harsh environments.

Why Trust Custom Truck One Source for Sealing Caps?

Custom Truck One Source is invested in your projects. Our professionals want to see your team step into new opportunities and increase your bottom line. Therefore, we carry sealing caps from reputable brands to keep your operations moving.

Unlike the competition, we offer you exceptional customer perks for sealing caps:

  • Top-quality equipment: Custom Truck One Source sells sealing caps that are durable and hard to find. Clients will notice superior protection equipment.
  • Informative product descriptions: Know what materials our sealing caps are made from prior to purchase. Our experts let you know details like the dimensions, pressure ratings, and intended applications.
  • Dozens of U.S. locations: You can visit a Custom Truck One Source location to see sealing caps up close.
  • Continuous support: You can speak to one of our representatives 24/7/365 for help with your sealing caps. We answer most questions over the phone and will drive out to your site to provide help when necessary.

Get a Quote for Sealing Caps Online

Custom Truck One Source sells the best maintenance and protection equipment available for your industry. To learn more about pricing, fill out a form to get a quote for our sealing caps.

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Item # 875-90362
875-90362
Unit of MeasureEach
Item # 216790
216790
Dimensions3.5"L x 3"W x 1"H
Weight0.22 LB
Unit of MeasureEach
Item # 37542
37542
Dimensions16"L x 4"W x 2.5"H
Weight1.20 LB
Unit of MeasureEach
Item # 802-01593
802-01593
Weight12.22 LB
Unit of MeasureEach
Item # G60927-0016
G60927-0016
Dimensions5.9"L x 2.1"W x 2.1"H
Weight0.80 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # HBF12
HBF12
Dimensions4.5"L x 4.05"W x 3.2"H
Weight0.54 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # QDDC161
QDDC161
Dimensions2.7"L x 2.2"W x 1.45"H
Weight0.40 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # 180.10624K
180.10624K
Dimensions7.2"L x 6.6"W x 3"H
Weight1.15 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # 572.1007
572.1007
Dimensions8.375"L x 6.25"W x 2.5"H
Weight0.65 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # 486910TU
486910TU
Dimensions9.99"L x 3"W x 4"H
Weight2.29 LB
Unit of MeasureEach
Item # 423214TU
423214TU
Dimensions1.7"L x 1"W x 1.7"H
Weight0.04 LB
Unit of MeasureEach
Item # 2415645
2415645
Dimensions12"L x 1.5"W x 8"H
Weight0.30 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # 360-4009
360-4009
Dimensions1.18"L x 0.65"W x 0.43"H
Weight0.50 LB
Unit of MeasureEach
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Item # 1243-155
1243-155
Dimensions5.93"L x 5.93"W x 5.75"H
Weight2.75 LB
Unit of MeasureEach
Item # 519-70032
519-70032
Weight3.06 LB
Unit of MeasureEach
Item # 875-90331
875-90331
Weight8.60 LB
Unit of MeasureEach
Item # 714-0833
714-0833
Weight0.43 LB
Unit of MeasureEach
Item # G64097-0008
G64097-0008
Dimensions3.3"L x 1.2"W x 1.2"H
Weight0.15 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # TC0015
TC0015
Dimensions4.5"L x 4.1"W x 3.05"H
Weight0.33 LB
Unit of MeasureEach
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Item # 564.46214
564.46214
Dimensions28.5"L x 24.5"W x 10"H
Weight3.70 LB
Unit of MeasureEach
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Item # 572.3003
572.3003
Dimensions3.25"L x 2.75"W x 1.937"H
Weight0.15 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # 572.2004
572.2004
Dimensions8.25"L x 2.25"W x 2"H
Weight0.02 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # 460.48
460.48
Dimensions9"L x 6"W x 4"H
Weight12.70 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # MN91198
MN91198
Dimensions10"L x 7"W x 4"H
Weight8.30 LB
Unit of MeasureEach
Eligible for FREE GROUND Shipping
Item # 460300TU
460300TU
Dimensions1"L x 0.5"W x 0.5"H
Weight0.02 LB
Unit of MeasureEach