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991/00145 Hydraulic Cylinder Seal Kit For JCB Backhoe Loader | Ruijueparts

991/00145 Hydraulic Cylinder Seal Kit For JCB Backhoe Loader | Ruijueparts

Regular price $12.89
Regular price Sale price $12.89
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Availability2000 in stock

Volume discounts available · Minimum order quantities apply for bulk pricing

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SKU: 991/00145
Vendor: RuiJueParts

Shipping & Returns

Shipping:
- Standard models take 1-3 business days.
- Bulk orders take 3-7 business days.
- For urgent orders, please contact our sales team. [Email: info@ruijueparts.com]

Returns:
We accept returns within 30 days of purchase. Learn more—return policy

Packaging details

PP bag, carton

Place of Origin

China

Payment terms

L/C, T/T, Western Union, MoneyGram

Performance

Oil Sealing

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Product Description

Stop hydraulic pressure loss and fluid leaks with this premium aftermarket 991/00145 hydraulic cylinder seal kit, engineered specifically for JCB machinery. Precision-fitted for heavy-duty rams featuring a 50mm rod diameter and 90mm bore size, this comprehensive kit utilizes industrial-grade PU and NBR to survive extreme field friction. To ensure zero-error purchasing, our team utilizes an extensive cross-reference database of over 30,000 part numbers to verify your machine’s exact configuration. We also offer tailored custom sealing solutions for modified or older equipment, alongside flexible neutral or branded packaging options for global B2B networks.

Item specifics

Part Number: 991/00145
Fits Models: JCB 3CX, 3CX Super, 4CX, 214, 214E, 215, 217. JCB 416, 426, 426B
Brand: JCB replacement
Type: Hub Axle Oil Seal / Aftermarket Replacement Parts
Application:

 

  • Backhoe Loaders: JCB 3CX, 3CX Super, 4CX, 214, 214E, 215, and 217 (commonly fits the rear bucket or stabilizer rams depending on serial number breaks).
  • Wheeled Loaders / Dozers: JCB 416, 426, 426B.
  • Technical Note: This is a 50x90mm seal group. Because JCB varies ram sizes by production year, please check your cylinder dimensions or cross-verify your machine VIN with our technical desk.
Size: Standard Size


FAQ

  • Q1: Does this 991/00145 seal kit fit all JCB 3CX or 4CX models?
    A: This kit is designed specifically for cylinders with a 60 mm rod diameter and 100 mm bore size (commonly used on stabilizer, bucket, or dipper cylinders). Because JCB configures variations based on manufacturing years, we highly recommend sharing your machine serial number (VIN). Our system tracks over 30,000 active part numbers to instantly double-check and guarantee exact cross-compatibility before shipping.
  • Q2: My JCB machine is an older model, and the original cylinder has been modified. Can you help?
    A: Yes, absolutely. One of our core specialties at Ruijueparts is delivering customized sealing solutions. If your older or out-of-production machinery has unique specs, you can provide us with the exact dimensions or send physical samples, and we can custom-engineer a specialized repair kit to fit your modified configuration.
  • Q3: Do you offer neutral packaging for wholesale or distributor orders?
    A:
    Yes, we provide highly flexible packaging terms. To support our distribution partners and B2B buyers, we can ship parts in standard unbranded neutral packaging (plain poly bags/boxes) or custom-print boxes according to your exact branding requirements to ensure seamless integration into your local market.

Why choose Ruijueparts

Lower cost — honest trade-off

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.

Extensive part number range

We stock seal kits across CAT, Komatsu, Volvo, JCB, Hitachi, Doosan, John Deere, Kubota, and 10+ other brands—one supplier for your whole fleet.

Flexible packaging options

Ship under RuijueParts branding, neutral (unbranded) packaging, or your own private label. Suitable for resellers and distributors.

Customization Service

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.

Wholesale & OEM bulk orders

Ship under RuijueParts branding, neutral (unbranded) packaging, or your own private label. Suitable for resellers and distributors.

Warranty on request

Volume pricing for repair shops, dealers, and fleet operators. Get a quote via our website or WhatsApp: +86 13692100161.

When budget aftermarket makes sense

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:

Older or end-of-life equipment

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.

Secondary or backup machines

For machines used infrequently or on lower-intensity tasks, premium OEM pricing may not be justified.

OEM parts unavailable or on long lead time

When OEM stock is out or delivery takes weeks, an available aftermarket kit gets your machine running now.

Fleet maintenance on a fixed budget

Repair shops and fleet managers running high volumes of machines often balance OEM and aftermarket across their portfolio based on criticality.

Installation guide

1. Depressurize the hydraulic system

Fully retract the cylinder and relieve system pressure before disassembly. Never work on a pressurized circuit.

2. Remove and disassemble the cylinder

Remove from the machine. Unthread the gland nut and withdraw the piston rod carefully to avoid surface damage.

3. Clean all components thoroughly

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.

4. Inspect the rod and bore

Check for scoring or pitting. Budget seals are more sensitive to surface imperfections—address rod damage before fitting new seals.

5. Install the seal kit

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.

6. Reassemble and pressure test

Torque the gland nut to spec and cycle the hydraulic system under no-load conditions. Inspect for leaks before returning the machine to service.

Maintenance tips

Inspect every 250–500 hours

Budget-grade seals may have shorter service intervals than OEM. Inspect rod seals for moisture, oil film, or weeping more frequently and replace proactively.

Keep hydraulic fluid clean

Contaminated fluid degrades seals faster — this applies especially to non-OEM materials. Replace fluid and filters on schedule.

Protect exposed rod surfaces

When storing equipment with cylinders extended, protect rod surfaces from corrosion and debris to preserve wiper seal life.

Ensure Proper Installation

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.

Reduce Downtime with Reliable Seals.

Click "Add to Cart" for immediate dispatch, or contact our team for bulk pricing and wholesale support.

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