Skip to content
ALBERTA-BASED · Serving customers across Western Canadasales@northcore.parts

A product photo is not available for this listing. Contact NorthCore for photos before ordering.

NC-008117 · Cylinders

1304012 Kit-Seal-H Cylinder – Fits Caterpillar

CAD 66.19

Availability to confirm

Kit-Seal-H Cylinder – reference 1304012. Catalogue-listed applications: Caterpillar 621B, 621F, 621R, 621S, 621SC, 623B, 623SC. View photos, specifications, CAD pricing and delivery options from NorthCore.

Request availability, shipping and a final quote before ordering.

Ask about this part

Part specifications and references

NorthCore code
NC-008117
Reference numbers
1304012, 2430384, HYI40-0207
Listed package quantity
1
Product information and configuration
Quantity indicated in catalogue: 1

Replacement part: Kit-Seal-H Cylinder Fits Caterpillar 1304012. 

Configuration: Hydraulic Cylinder Seal Kit Fits Caterpillar (Fits CAT) Scrapers, Off-Highway Trucks, and Crawler Loaders
This hydraulic cylinder seal kit restores proper sealing in steering, ejector, and tilt cylinders on Fits Caterpillar (Fits CAT) scrapers, off-highway trucks, and crawler loaders. The kit covers a 2-1/2 in. rod and 5 in. bore cylinder and includes wiper, U-cup, buffer, and piston seals in a single package -- everything needed to rebuild a leaking or worn hydraulic cylinder.
Specifications
Rod Diameter: 2-1/2 in.
Bore Diameter: 5 in.
Weight: approx. 0.4 lbs.
Compatible Models
Fits Caterpillar Scrapers (Steering Cylinders, Cyl. No. 3G5192): 621B, 621F, 621R, 621S, 621SC, 623B, 623SC, 623SCG, 627B, 627SC
Fits Caterpillar Scrapers (Ejector Cylinders, Cyl. No. 8J5478 / 3G8081): 623, 623SC, 623SCG
Fits Caterpillar Off-Highway Trucks (Steering Cylinders, Cyl. No. 6E5857): 783B, 784B, 784C, 785, 785B, 785C
Fits Caterpillar Crawler Loaders (Tilt RH Cylinder, Cyl. No. 7J9637): 955
Fits Caterpillar Crawler Loaders (Tilt RH Cylinder, Cyl. No. 5J6213): 955K, 955L
Fits Caterpillar Crawler Loaders (Tilt LH Cylinder, Cyl. No. 5J6214): 955K, 955L
Replaces Part Number(s):
1304012, 2430384, HYI40-0207
Aftermarket Interchange Numbers
243-0384, CTC-1304012, CA2430384
New aftermarket replacement part - not remanufactured, not used.

Reference numbers: 1304012, 2430384, HYI40-0207

Catalogue-listed applications

Use these as reference information. Check the part numbers, specifications and any application restrictions against your equipment.

  • Caterpillar 621B
  • Caterpillar 621F
  • Caterpillar 621R
  • Caterpillar 621S
  • Caterpillar 621SC
  • Caterpillar 623B
  • Caterpillar 623SC
  • Caterpillar 623SCG
  • Caterpillar 627B
  • Caterpillar 627SC
  • Caterpillar 623
  • Caterpillar 783B
  • Caterpillar 784B
  • Caterpillar 784C
  • Caterpillar 785
  • Caterpillar 785B
  • Caterpillar 785C
  • Caterpillar 955
  • Caterpillar 955K
  • Caterpillar 955L
Application notes
  • One New Aftermarket Replacement Hydraulic Cylinder Seal Kit Fits Caterpillar (Fits CAT) Scrapers, Off-Highway Trucks, and Crawler Loaders
  • Aftermarket Interchange Numbers
  • New aftermarket replacement part - not remanufactured, not used.

Browse related parts

NORTHCORE EQUIPMENT SUPPLY

Search the parts catalogue

Browse equipment parts, compare prices and order online. By part number · By category · By equipment make

Prices in CADDelivery across Canada

Minimum parts order: CAD 100 · Shipping and taxes calculated at checkout

All parts

Loading parts…

MORE THAN A CATALOGUE

Can’t see the part you need?

Tell us what you’re looking for. We’ll work on finding it.

Part details
Shipping and taxes calculated at checkout.Minimum online order: CAD 100 in parts.

Choose your part using the listed numbers and specifications. Availability, shipping and taxes are checked at checkout.

Listed applications
Your parts cart

Your parts cart

Your cart is saved on this device for 30 days. Prices and availability are checked again when you order.

Review your parts and quantities, then continue to delivery and payment.

Delivery and applicable taxes are calculated at checkout.

Need help with this order? Send an enquiry

Send a parts enquiry

Send your request directly to NorthCore. Your selected parts and quantities are included automatically. Machine details are optional.

For kits and packs, tell us the number of units or packs needed. We’ll confirm exactly what is included.

We’ll reply by email. Sending this enquiry does not create an order or take payment.

By sending, you ask NorthCore to contact you about this enquiry. Your details are processed through Formspree, which may process information outside Canada. No marketing signup. Privacy Notice.

PARTS SOURCING

WE CAN HELP

Can’t find your part?

Send us the part number or a description. Our team will look for options and reply by email.

Parts request

Tell us what you need. Only three fields are required (*). Send your request here — no email app needed.

Add machine & company details (optional)
Have photos or a nameplate?
Email them to sales@northcore.parts using the same name and part details. This form sends text only.

We’ll review your details and reply by email. No order or payment is created.

By sending, you ask us to contact you about this enquiry. Your details are processed through Formspree, which may process information outside Canada. No marketing signup. Read our Privacy Notice (new tab) and Terms & Ordering (new tab).