155-7434 1557434 Caterpillar Alternator
155-7434 Caterpillar Alternator GP-Charging OEM 1557434 Fits 924G 928G IT28G Parts
Product Information
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- Brand: Caterpillar
- Category: Alternators & Starters
- Part Number: 155-7434
- Part Name: Alternator GP-Charging (24V 70A)
- Alternative OEM: BOSCH 0986081030 CATERPILLAR 0R8279 107-7977 132-2156 CUMMINS 3251135 3675242RX 3920617 3920618 3935530 FARCOM 111284 HC-Cargo 112160 LUCAS LRA02997 NIKKO 0-35000-0390 0-35000-0391 0-35000-0392 0-35000-0460 0-35000-0461 0-35000-0471 0-35000-0480 UNIPOINT ALT-1101 WAIglobal 1-2291-00DR 1-2291-00DR-1 20-1114
- Engine Model: Caterpillar 3056, 3116
- Compatible Equipment: Caterpillar 924G, 924GZ, 928G Wheel Loaders; IT28G Integrated Toolcarriers
- Condition: 100% New Aftermarket Replacement


Product Function & Specs:
Heavy-duty 24-Volt, 70-Amp charging alternator designed to restore electrical output on Cat G-Series loaders. Engineered with built-in electronic voltage regulators and a high-efficiency cooling structure to provide steady battery charging and continuous cabin power under demanding job site vibration.
Failure Symptoms:
- Batteries discharging quickly or failing to hold enough charge to crank the engine.
- Flickering or dimming work lights and digital instrument monitors during operation.
- Battery charge indicator dashboard lamp remains illuminated while the loader is running.
Quick Installation Notes:
- Turn off the main battery disconnect switch before handling any power terminal connections.
- Verify the drive belt and automatic tensioner are in good condition; align the new alternator pulley carefully.
- Clean all terminal ring eyelets of dirt and grease to ensure solid low-resistance connections.
- Tighten all mount bolts securely to prevent unit vibration and early bracket fatigue.
FAQ:
Q: Can this part replace OEM 155-7434?
A: Yes, 100% interchangeable. Mounting brackets, wire terminal pinouts, and the 24V 70A charging ratings match the original Cat assembly specifications.
Q: Is this an OEM or aftermarket replacement?
A: This is a premium aftermarket replacement alternator built with robust bearings and heavy-duty internal copper windings for maximum durability.
Q: What equipment does this alternator fit?
A: Fits Cat 924G, 924GZ, and 928G wheel loaders, plus IT28G toolcarriers running Cat 3056 or 3116 engines. Please share your equipment PIN/serial number if you’d like us to verify fitment.
Q: Does this alternator include the mounting pulley?
A: Yes, the drive pulley is pre-assembled and ready for direct belt installation.
Q: Do you offer discounts for wholesale orders?
A: Yes. We offer competitive wholesale terms for rebuild facilities, heavy machinery dealers, and commercial fleets. Contact us directly for a bulk quotation.
Why Sourcing From WinsParts?
We match your part numbers directly against official parts catalogs to ensure a 100% correct fit. Our large physical inventory allows us to ship orders fast, minimizing your machine downtime with dependable parts.
Global Logistics & Secure Transit
We deliver high-performance construction machinery parts to wholesalers, repair shops, and operators worldwide. To minimize your machinery downtime, we offer flexible shipping options tailored to your urgency and budget:
Our Reliable Shipping Methods:
- Express Delivery (DHL, FedEx, UPS): 3–7 business days worldwide. Best for urgent orders (e.g., electronic controllers, injector nozzles, seal kits).
- Standard & Economy Shipping: 7–21 days depending on the destination. Ideal for cost-effective transit with full end-to-end tracking.
- Sea Freight & Air Cargo: Recommended for heavy assemblies such as complete engine blocks, hydraulic main pumps, and undercarriage track links.
Dispatch Timeline:
- Orders for in-stock items placed before 2:00 PM (GMT+8, Monday–Friday) are dispatched the same day.
- Later orders or customized orders will be shipped the next working day.
Critical Selection Reminder: Please make sure your Part Numbers match our product listings. If you are unsure, simply contact our engineering team via WhatsApp. We will cross-verify compatibility using official electronic catalogs (SIS/EPC) based on your machinery nameplate.
Payment Methods & Export Terms
To ensure a smooth B2B procurement experience, WinsParts supports multiple secure global payment methods:
- International Credit/Debit Cards: Secure online processing via Visa, Mastercard, and major global gateways.
- Digital Wallets: Fast and verified transfers via PayPal and Stripe.
- Bank Telegraphic Transfer (T/T): Recommended for large-scale wholesale orders. A formal Proforma Invoice (PI) containing our official corporate bank details will be sent via email upon order confirmation.
Export Customs & VAT Policy:
- All prices displayed on our website are exclusive of local VAT and destination import duties unless specified otherwise.
- Full shipping documentation—including Commercial Invoices, Packing Lists, and Certificates of Origin (CO)—is provided with every shipment to ensure seamless customs clearance in your country.
Gz Wins Construction Engineering Co., Ltd. is a premier manufacturer and global supplier specializing in the diversification of engineering machinery parts. With over a decade of industry expertise, we integrate development, production, and professional marketing to provide a one-stop solution for the world’s most demanding machinery brands.
We don’t just sell parts; we manage reliability. Our products are rigorously tested and successfully exported to America, Europe, Southeast Asia, the Middle East, and Africa. We pride ourselves on maintaining a massive inventory that ensures your machinery downtime is kept to an absolute minimum.
Strategic Brand Specialization
We are the preferred choice for heavy machinery operators who prioritize uptime and performance. Our inventory is specifically optimized for:
KOBELCO Excavators: * Unrivaled stock of Genuine Engine Components series.Full range of Hydraulic Pump & Valve solutions to restore factory-speed operation.
HITACHI Excavators: * Comprehensive parts support for Zaxis series, from ISUZU engine internals to advanced electronic controllers.
Why Professional Buyers Choose Us:
Technical Match Precision: We use official parts catalogs to ensure 100% compatibility based on your machine’s serial number.
Global Supply Strength: Specialized export experience to America, Europe, and the Middle East ensures smooth logistics for your KOBELCO and HITACHI parts.
