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7137770 Hydraulic Cylinder Seal Kit for Bobcat | Ruijueparts

7137770 Hydraulic Cylinder Seal Kit for Bobcat | Ruijueparts

Regular price $13.85
Regular price Sale price $13.85
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Availability2000 in stock

Volume discounts available · Minimum order quantities apply for bulk pricing

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SKU: 7137770
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

Aftermarket 7137770 cylinder seal kit for compatible Bobcat hydraulic cylinder repair applications. This kit is referenced for 2.00 in bore and 1.25 in rod cylinders and replaces the earlier reference number 7135555. On Bobcat mini excavators, it may be used for arm, bucket, or blade cylinder repair depending on model and cylinder number. On Bobcat skid steer loaders, it is commonly used for lift cylinder service. Listed applications include S70, S100, S130, S450, T110, T140, T450, MT50, and selected legacy models. Please verify machine model, serial number, cylinder number, and old seal dimensions before ordering. Ruijueparts supports 30,000+ part-number lookups, custom service, and flexible packaging.

Item specifics

Part Number: 7137770
Fits Models: S70, S100, S130, S450, 463, 653, 751, 753, T110, T140, T450, E08, E10, E14, E17, 323
Brand: BOBCAT replacement
Type: Hydraulic Cylinder Seal Kit / Aftermarket Replacement Parts
Application:
  • For Bobcat mini excavator and skid steer loader hydraulic cylinder repair. This aftermarket 7137770 seal kit rebuilds 2" × 1.25" cylinders, seals hydraulic oil, reduces leakage, and helps the cylinder extend, retract, lift, lower, dig, tilt, or stabilize smoothly. Final application depends on machine type, cylinder position, and cylinder number.
  • Bobcat Skid-Steer Loaders: S70, S100, S130, S450
  • Selected legacy Bobcat skid steer machines: 463, 653, 751, 753, depending on serial number and cylinder number
  • Bobcat Track Loaders: T110, T140, T450
  • Bobcat Mini Track Loader: MT50
  • Bobcat Mini Excavators: E08, E10, E14, E17, 323, and similar compact excavator applications, subject to cylinder size and cylinder number confirmation
  • For Bobcat mini excavators: arm cylinder, selected bucket cylinder, blade cylinder or auxiliary hydraulic cylinder
  • For Bobcat skid steer loaders: lift cylinder / loader arm lift cylinder
  • Not recommended to list as main boom cylinder seal kit unless confirmed by cylinder number, because boom cylinders are usually larger.
Size: Standard Size


FAQ

  • Q1: Will 7137770 fit my Bobcat machine?
    A: 7137770 is referenced for compatible Bobcat skid steer loaders, track loaders, mini track loaders, and some mini excavators. Please confirm the machine model, serial number, cylinder number, and old seal dimensions before ordering.
  • Q2: Is 7137770 used for the boom cylinder on mini excavators?
    A: Usually it should not be listed as the main boom cylinder seal kit unless confirmed. Mini excavator boom cylinders are often larger, so the cylinder number and seal size must be checked.
  • Q3: What if I am not sure which seal kit I need?
    A:
    Ruijueparts supports part-number lookup and seal kit identification. Send the machine model, serial number, cylinder position, cylinder number, old seal photos or dimensions, and we will help check the correct kit.


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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