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SND25A046-S( CASE 521D/521E / NEW HOLLAND W110/W110B )428000-2580 428000-2581 19857
Product Overview
SND25A046-S (LSDF) 24V 4.5KW 10-tooth CW Planetary Gear Reduction Starter — Original factory manufactured DENSO-style starting motor, suitable for industrial equipment, construction machinery, and agricultural tractors. Compatible with multiple international brand OEM replacement codes including ARROWHEAD, LESTER, DENSO, CASE, NEW HOLLAND, and more. Direct bolt-on installation with stable and durable starting performance, designed for Global Aftermarket.
CASE 521D/521E; NEW HOLLAND W110/W110B (Case 4.5L engine)
Target Markets
Global Aftermarket
OEM Cross-Reference Codes
This product serves as a universal replacement part compatible with multiple original equipment manufacturer codes:
LSDF:
ARROWHEAD (OEM):
J & N:
LESTER:
SND25A046-S
ND428000-2581
410-52594
19857
PIC:
CASE:
DENSO:
LUCAS ELECTRICAL EUROPE:
190-6235
8605783
428000-2580, 428000-2581
LRS02409
MINNPAR:
NEW HOLLAND:
MY_NO:
57-5071
8605783
SND25A46-S
Design Features & Performance Advantages
OSGR-83 Planetary Gear Reduction Structure: Utilizes OSGR-83 series planetary reduction architecture with 4.5KW power output suitable for industrial and agricultural 4.5L diesel engines. Compact design with efficient torque output, perfectly matching installation space in construction machinery and tractors. 10-tooth drive gear with precise modulus ensures smooth engagement with flywheel ring gear, reducing gear wear and noise.
DENSO Original Mold Design, Direct Replacement: Developed and manufactured based on DENSO original structure. Mounting holes, wiring terminals, and fixing dimensions are 1:1 matched with original parts. No modifications required — direct installation for maintenance replacement. Compatible with CASE 521D/521E and NEW HOLLAND W110/W110B with Case 4.5L engines.
24V Heavy-Duty System, Premium Materials: Designed for 24V electrical systems commonly used in heavy-duty industrial and agricultural applications. Stator and rotor use high-purity enameled windings with Class F insulation resistant to high temperatures, preventing overheating damage during frequent start-stop cycles in demanding working conditions. High-wear-resistant graphite brushes ensure stable conductivity and extend service life. Aluminum alloy die-cast housing provides vibration resistance, impact protection, and dust/splash resistance, suitable for rugged construction and agricultural environments. Built-in high-quality one-way clutch automatically disengages after engine start, preventing flywheel back-drive damage to starter.
Industrial & Export Market Customization: Specifically developed for heavy-duty construction and agricultural machinery applications with 24V electrical systems. Meets requirements for overseas industrial parts wholesale and repair shop maintenance replacements.
Quality & Application Information
Factory-controlled full-process production with comprehensive outgoing inspections including no-load performance, load torque, lock parameters, and insulation withstand voltage testing. Complies with international industrial and automotive starter manufacturing standards.
Application Scenarios: Industrial equipment assembly, construction machinery, agricultural tractors, domestic and international heavy-duty parts retail, repair shop faulty part replacement. Optimal replacement starter for CASE 521D/521E and NEW HOLLAND W110/W110B with Case 4.5L diesel engines.
Frequently Asked Questions
I. Product Selection
Q1: Is the SND25A046-S starter a brand‑new product?
A: Yes, it is 100% brand new. Leshan Dongfeng Automobile Electric Appliance Co., Ltd. (LSDF) guarantees that all starters we sell are factory‑manufactured new units — never rebuilt or used. We fully understand that reliability in the starting system is critical to equipment safety and operational efficiency, which is why we consistently deliver the highest quality new components.
Q2: Which equipment is this starter compatible with?
A: The SND25A046-S is developed and manufactured based on the original DENSO design, with mounting holes, terminals, and fixing dimensions matching OEM specifications 1:1 for direct bolt‑on replacement. It is primarily suited for CASE 521D/521E and NEW HOLLAND W110/W110B models equipped with Case 4.5L diesel engines. In addition, its broad OE cross‑reference list (see the compatibility table on our product page) allows it to serve as a direct replacement for many international brand industrial equipment that use the same starter specifications.
