SKU: 78664521128

Caterpillar 2590633 Replacement Hydraulic Cylinder Seal Kit

Sale price$71.10 Regular price$79.00
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Caterpillar 2590633 Replacement Hydraulic Cylinder Seal KitCaterpillar 2590633 Replacement Hydraulic Cylinder Seal Kit *Photo Is For Representative Purposes Only And Are Not The Exact Seals* *This Is A Special Order Seal Kit And May Take Up To 7 Days To Ship, Please Plan Accordingly* *Please Verify Kit Before Ordering* *Please Verify All Measurements And Model Numbers (The WHOLE Model Number). It Is Up To You To Decide For Sure If This Item Fits Your Machine. If You Need Help, Please Call Or Email Us.* Use

Caterpillar 2590633 Replacement Hydraulic Cylinder Seal Kit

*Photo Is For Representative Purposes Only And Are Not The Exact Seals*

*This Is A Special Order Seal Kit And May Take Up To 7 Days To Ship, Please Plan Accordingly*

*Please Verify Kit Before Ordering*

*Please Verify All Measurements And Model Numbers (The WHOLE Model Number). It Is Up To You To Decide For Sure If This Item Fits Your Machine. If You Need Help, Please Call Or Email Us.*

Use With OEM Cylinder Numbers: 2043615, 2043616, 2043620, 2424840

2 PC Piston

Press In Wiper
Rod Seal: U-Seal & Buffer
Piston Seal: Piston Seal

Rod: 100.00 MM
Bore: 140.00 MM

Fits Caterpillar® Excavator Applications:

320B Excavator (Dipperstick)

320C Excavator (Dipperstick (S/N: AMC1-Up; ANB1-Up; MAB1-Up; PAB1-Up; BPR1-Up; BRXI-Up; GNG1-Up; HKT1-Up)

320C L Excavator (Dipperstick (S/N: AMC1-Up; ANB1-Up; MAB1-Up; PAB1-Up; BPR1-Up; BRXI-Up; EAG1-Up; GNG1-Up; HKT1-Up)

320 C LU Excavator (Dipperstick (S/N: CLM1-Up; CLZ1-Up; MAC1-Up; PAC1-Up)

320C U Excavator (Dipperstick (S/N: CLM1-Up; CLZ1-Up; MAC1-Up; PAC1-Up)

321B Excavator (Dipperstick)

321C Excavator (Dipperstick)

321C LCR Excavator (Dipperstick (S/N: KCRI-Up; MCF1-Up)

322B Excavator (Dipperstick)

322C Excavator (Dipperstick (S/N: BKM1-Up; BLP1-Up)

322C L Excavator (Dipperstick (S/N: BKM1-Up; BLP1-Up)

This Item Is A Brand New Aftermarket Hydraulic Cylinder Seal Kit. Matches OEM Kit, All Parts And Seals Are Included.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78664521128

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4.1 ★★★★★
Based on 6 reviews
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B
Verified Purchase
Baldemarg
Draper, US
★★★★★ 5
May not fit correctly or is difficult to fit on.
Would not advise buying. It wouldn’t fit with the o ring nor with the old one, it would only go in with no o ring. So I had to put back my old hinge and o ring. Edit: I had to add coolant to the O ring, along with somewhat forcing/prying it in in order to get it to fit flush.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
J
Verified Purchase
Johnetta
Houston, US
★★★★★ 5
Works 100% on my f30 n55
No leaks made with good material you can use everything they send it will work
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
C
Verified Purchase
carol cruzstewart
Pawtucket, US
★★★★★ 5
It’s the right part and it’s not defective
It fit and works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
F
Verified Purchase
Feedback Jedi
New York, US
★★★★★ 4
Quick solution to replace that OEM Plastic Mount in your BMW E90
Effective Upgrade: After installation, I have experienced no leaks, which is a significant improvement for my vehicle. Quality Material: The aluminum construction feels durable and sturdy, offering a long-lasting solution compared to the original fitting. Cons: The installation process was a bit tricky. The holes didn't line up perfectly, making it a challenge to fit. While there was no need for drilling, finding the right angle to fit it required some patience and effort. Wider holes could have made the installation easier. I rate it 4 stars because of that. Despite the challenging installation, the Aluminum Water Hose Fitting Upgrade is a worthwhile investment for anyone experiencing leaks. The improved performance and durability make it a recommended upgrade for BMW E90 owners.
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Reviewed in the United States on May 21, 2024
M
Verified Purchase
Martin Maldonado
Waukegan, US
★★★★★ 5
A-
Great part, had to change oring the one that comes with is way to big, but overall great quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2025

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