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121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
Specifications
MOQ :
10PCS
Oem :
Avaliable
Place of Origin :
China
Operating Voltage :
12-24 V DC
Supply Ability :
10000 Piece/Pieces per
Stock :
Yes
Packaging Details :
BOX
Material :
Stainless Steel
Payment Terms :
L/C, T/T
Appliion :
Fuel rail
Connection Type :
M12 Connector
Delivery Time :
5-8DAY
Delivery :
1~5 Days
Model Number :
121-1491
Port :
Guangzhou/Shenzhen/Ningbo/Shanghai
Condition :
New
Price :
$30 - $50.00/pieces
Applies To :
Hydraulic pump
Description

Product Description
121‑1491 proportional safety lock solenoid valve with red dot, aftermarket replacement part for CAT excavators, part number 121‑1491 / 1211491, 24V DC.

This red‑dot solenoid controls pilot hydraulic pressure for safety lock and swing brake system. It solves common failures including slow movement, no action and solenoid malfunction.
Adopts precision‑ground spool and high‑quality pure copper coil. Every unit passes strict hydraulic pressure test before shipment. Original mounting dimension, direct plug‑and‑play replacement without modification.


CAT Models
Fit for CAT Excavator: E312B, E312C, E315C, E320B, E320C, E320D, E325C, E330C, E330D and related series machinery.Technical

Parameters

Item Specification
OEM Part Number 121‑1491, 1211491121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
Product Name Red Dot Proportional Safety Lock Solenoid Valve
Rated Voltage 24V DC121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
Function Safety Lock, Swing Brake Hydraulic Control
Application CAT Excavator Hydraulic Pilot System
Condition New Aftermarket Replacement
Core Material Precision‑ground Alloy Spool, Pure Copper Coil
Quality Test 100% Hydraulic Pressure Tested
Warranty 6‑12 Months
MOQ 1 PC121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
Packing Neutral Packing / Customized Packing Available


Features & Advantages
✅ Red dot identification, correct replacement part for CAT hydraulic system
✅ High‑precision grinding valve core, low internal leakage, sensitive response
✅ Pure copper coil, anti‑overheat, stable work under harsh construction site conditions
✅ 100% hydraulic pressure tested before delivery, reduce return risk
✅ Exact OEM dimension, plug‑and‑play, no need additional machining
✅ Widely used for construction, mining, earth‑moving excavator repair & maintenance


Notes

Please confirm your original part number 121‑1491 and machine model before ordering to ensure correct compatibility.
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid

121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid


121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid

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121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid

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Product Detail
MOQ :
10PCS
Oem :
Avaliable
Place of Origin :
China
Operating Voltage :
12-24 V DC
Supply Ability :
10000 Piece/Pieces per
Stock :
Yes
Contact Supplier
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid
121‑1491 1211491 Red Dot Proportional Safety Lock Solenoid Valve 24V DC For CAT Excavator E320B E320C E320D E312B E325C E330C Hydraulic Solenoid

Guangzhou Quanhang Construction Machinery Co., Ltd.

Site Member
4 Years
guangzhou
Since 1998
Business Type :
Manufacturer
Main Products :
Excavator Tracks Parts, Excavator Track Link, Excavator Track Shoe
Total Annual :
5000000-10000000
Employee Number :
50~100
Certification Level :
Site Member
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