Miller 051-Kr012-300 Rod Seal

Miller 051-Kr012-300 Rod Seal is a Hercules catalog product available from WQC Parts for hydraulic cylinder, seal kit, pump, motor, valve, and heavy-equipment repair applications.

This listing uses Hercules part number MLR-051-KR012-300. Catalog description: 3 Hyd Rod Seal Cage Assemblies.

Product Details

• Hercules part number: MLR-051-KR012-300
• Product type: Rod seal
• Reference brand/application: Miller
• Approximate weight: 0.137 lb
• Catalog data source: 2026 US Industrial Catalog

Catalog Application Data

• Catalog section: Rod Kit - Cage Assembly > Rod Kit - Cage Assembly > Rod Kit - Cage Assembly
• Style / kit type: 051-KR014 Rod Gland Kits; Rod Gland Kits (2,3,4,5); Rod Kit - Cage Assembly
• Material / grade reference: Iron
• Catalog page reference: 62, 64, 88

Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for MLR-051-KR012-300. It is intended to help restore sealing performance, reduce leakage, and support reliable equipment repair when correctly matched to the application.

Fitment Verification

Before ordering, confirm the MLR-051-KR012-300 reference against your OEM reference number, machine model, cylinder location, bore and rod size, pump/motor series, and serial-number range. Manufacturer names and part numbers are used for identification and fitment reference only. If you are unsure, compare the old parts, measurements, and parts-book callout before installation.