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Oil Sealing
We specialize in aftermarket seal kits compatible with brands such as Caterpillar, Komatsu, JCB, and John Deere. We offer B2B bulk order consultation and large-scale procurement services. With years of industry experience, we provide wholesale and long-term bulk supply services to our global business partners. Submit your bulk order details, and our professional B2B team will provide you with competitive pricing, fast delivery times, and customized supply solutions within 24 hours.
1543275C1 is an aftermarket stabilizer cylinder seal kit reference for Case loader backhoes. It is associated with 2.00 in rod and 4.25 in bore cylinders, including references 143695A1, 143697A1, 199720A1 and 199721A1. For Case 580K, 580 Super K, 580 Super L and 580 Super M, it services the left- or right-hand stabilizer/outrigger cylinder during digging. This is not a boom, dipper or bucket kit. Match the original kit or cylinder number before purchase, as model variants differ. Ruijueparts supports part-number lookup, old-equipment sourcing and neutral or customer-specified packaging.
| Part Number: |
1543275C1 |
| Fits Models: |
480D, 480D LL, 480E, 480E LL, 480F, 480F LL, 480LL, 580F, 580G |
| Brand: | CASE replacement |
| Type: |
Hydraulic Cylinder Seal Kit / Stabilizer Cylinder Seal Kit |
| Application: |
Backhoe Stabilizer Cylinder | Reseals the left- or right-hand outrigger cylinder that stabilizes the loader backhoe during digging and lifting operations. Verify the original cylinder assembly number before installation. Case Loader Backhoes: 580K, 580 Super K, 580 Super L, 580 Super L Construction King, 580 Super M |
| Size: | Standard Size |
Q: What cylinder does 1543275C1 repair?
A: It is used for the hydraulic stabilizer, also called the outrigger cylinder, on compatible Case loader backhoes. This cylinder supports and steadies the machine during backhoe work.
Q: Does this kit fit both left- and right-hand stabilizer cylinders?
A: It is listed for both sides when matched with the applicable cylinder number. Common references include 143695A1 and 199720A1 for one side, and 143697A1 and 199721A1 for the opposite side.
Q: Is 1543275C1 a bucket, boom or dipper cylinder kit?
A: No. It is a stabilizer cylinder seal kit. Case backhoes use different kits for boom, dipper, bucket and stabilizer cylinders.
Q: Can I order using only “580 Super M” as the reference?
A: The original 1543275C1 or cylinder assembly number is the safest ordering reference. Similar machine names and series variants can use a different cylinder configuration.
Our aftermarket seal kits deliver a practical, cost-effective solution without compromising on real-world performance. We offer a lower upfront cost and reliable sealing for your daily maintenance and repair needs.
We stock seal kits across CAT, Komatsu, Volvo, JCB, Hitachi, Doosan, John Deere, Kubota, and 10+ other brands—one supplier for your whole fleet.
Ship under RuijueParts branding, neutral (unbranded) packaging, or your own private label. Suitable for resellers and distributors.
When genuine OEM seals are out of production for your old machinery, we can custom-make oil seals using your dimensions or our engineer-recommended specifications.
Ship under RuijueParts branding, neutral (unbranded) packaging, or your own private label. Suitable for resellers and distributors.
Volume pricing for repair shops, dealers, and fleet operators. Get a quote via our website or WhatsApp: +86 13692100161.
OEM seal kits are the right choice when machinery is under active warranty, operating at peak duty cycles, or when failure risk is unacceptably high. Budget aftermarket—like Ruijue Parts—makes sense in these common scenarios:
When a machine is aging out of your fleet, OEM parts cost more than the job warrants. A budget kit extends service life without over-investing.
For machines used infrequently or on lower-intensity tasks, premium OEM pricing may not be justified.
When OEM stock is out or delivery takes weeks, an available aftermarket kit gets your machine running now.
Repair shops and fleet managers running high volumes of machines often balance OEM and aftermarket across their portfolio based on criticality.
Fully retract the cylinder and relieve system pressure before disassembly. Never work on a pressurized circuit.
Remove from the machine. Unthread the gland nut and withdraw the piston rod carefully to avoid surface damage.
Clean the bore, rod, and all metal parts with a lint-free cloth. Contamination introduced during reassembly accelerates seal wear—this step is especially important for budget-grade seals.
Check for scoring or pitting. Budget seals are more sensitive to surface imperfections—address rod damage before fitting new seals.
Lightly coat each seal with clean hydraulic fluid before installation. Use proper seal drivers — not screwdrivers or sharp tools — to avoid nicking the sealing lip.
Torque the gland nut to spec and cycle the hydraulic system under no-load conditions. Inspect for leaks before returning the machine to service.
Budget-grade seals may have shorter service intervals than OEM. Inspect rod seals for moisture, oil film, or weeping more frequently and replace proactively.
Contaminated fluid degrades seals faster — this applies especially to non-OEM materials. Replace fluid and filters on schedule.
When storing equipment with cylinders extended, protect rod surfaces from corrosion and debris to preserve wiper seal life.
Avoid using sharp tools during assembly to prevent nicks or scores on the seal lips. Pre-lubricating all components with clean hydraulic oil is recommended to ensure a smooth fit into the cylinder grooves.
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First order was a pleasant surprise-
great value for money.
Good! The 101529-00005 seal kit
performed exceptionally. No oil leaks,smooth operation.
Fast delivery and exactly as described.Highly recommend!
Seals fit well and arrived on time.
Good quality for the price.
