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Generator Parts Wholesale 4JB1 Isuzu Generator Adjusting Arm Bolt For ISUZU TFR/UCS55 8971320480 8-97132048-0
This professional Bolt (Alternator Adjusting Plate), designated by OE numbers 8971320480 and 8-97132048-0, is engineered specifically for ISUZU TFR and UCS55 series models utilizing the 4JB1 engine. Constructed from premium-grade reinforced steel, the component features a specialized yellow zinc-plated finish that provides a superior shield against rust and chemical corrosion. This robust surface treatment, combined with precision-cut threading, ensures the bolt maintains reliable tension and structural stability despite the intense thermal fluctuations and constant mechanical stress found within the engine's power system.We are a One-stop ISUZU ,Hino ,Mitsubishi and Jiangling ,JMC truck parts supplier from China ,focus on all Isuzu trucks spare parts sales for 29 years . Worldwide shipping is supported .DM us for more ,WhatsApp +86 17383152089 .
Description
Products Description
| Product Name | Bolt (Alternator Adjusting Plate) |
| Truck Model Fit for | TFR UCS55 |
| OE NO. | 8971320480,8-97132048-0 |
| MOQ | 1 Pieces |
| Place of Original | China |
| Quality | China ISUZU (Qingling) Quality / Famous Brand Aftermarket Quality / Japanese ISUZU Quality for Choose |
| Color | As picture shown |
| Product Size | 8*120mm |
| Engine Type Fits | 4JB1 |
| Packing | neutral box/color box/customer brand package |
| Shipping | By Express, By Sea ,By Air, By Railway |
| Delivery Time | 1-8 Working days |
| Shipping | Worldwide shipping |
| Payment | TT.paypal.Western Union.Trade Assurance |
| Warranty | 1 Year |
Our Available Solutions
Alternator Adjusting Bolt available in three quality grades
China ISUZU (Qingling) Quality
Original equipment manufacturer (OEM) standard for Qingling vehicles – reliable and cost-effective
Famous Brand Aftermarket Quality
Premium aftermarket brands with excellent durability and performance – ideal for standard replacements
Japanese ISUZU Quality
Highest quality, Japanese OE specification – recommended for heavy-duty use & long life
Products Image
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Alternator Adjusting Bolt and related products Introduction
01
Alternator Bracket Adjusting Bolt Assembly
This high-strength assembly is the core component for positional adjustment within the alternator bracket system, ideal for commercial vehicles such as ISUZU trucks.
- Precision Tensioning: A fully-threaded bolt and movable block allow millimeter-level adjustments. This ensures optimal drive belt tension and prevents bearing overload.
- Structural Alignment: The rigid sliding block maintains perfect parallelism with the crankshaft pulley, effectively preventing belt slippage and premature wear.
- Vibration Resistance & Durability: A flanged hex head secures the unit against high-frequency engine vibrations. The yellow zinc plating provides superior corrosion resistance in demanding engine bay environments.
02
Generator Adjustment Bolt Risks of Damage
A broken, stripped, or seized bolt disrupts drive belt tension, causing severe failures:
- Power Loss: Belt slippage stops power generation, leading to battery drain and vehicle stalling.
- Engine Overheating: If the belt also drives the water pump, slippage halts cooling, risking complete engine seizure.
- Belt Failure: Friction causes loud squealing, rapid heat wear, and sudden snapping.
- Component Damage: A seized bolt over-tightens and ruins bearings; a completely broken bolt allows the generator to vibrate and crush nearby hoses or wires.
03
Alternator Adjusting Bolt Installation Guide
1. Prep: Disconnect the negative battery terminal. Loosen the bottom pivot bolt so the alternator swings freely.
2. Install: Insert the adjusting bolt through the upper bracket slot. Connect the slider block to the alternator's mounting ear, then route the drive belt onto all pulleys.
3. Tension: Turn the bolt clockwise to push the alternator outward and tighten the belt. Press the center of the belt's longest span-a 10-15mm deflection is optimal. Avoid over-tightening to protect bearings.
4. Secure: Fully tighten the bottom pivot bolt and upper lock nuts (the adjusting bolt should not bear the running load alone). Reconnect the battery and run the engine to verify smooth, noise-free operation.
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About Us
Chongqing Guanglian Qingling Auto Parts co., ltd
Founded in 1997 and located in the High-tech Zone of Chongqing City, China, we are one of the largest Isuzu parts distributors in China. For about 29 years ,we primarily supply a full range of spare parts for Isuzu trucks, covering models including ISUZU CXH, CYH, CXZ, CYZ, ELF, EXR, EXZ, FMR, FRR, FSR, FTR, FTS, FSS, FVM, FVR, FVZ, FXZ, FYH, GVR, GVZ, GXZ, NHR, NKR, NLR, NMR, NPR, NPS, NQR, QKR, TFR, TFS, UCR, UCS, and UBS. We also supply HINO, NISSAN, and TOYOTA spare parts. Our main products include China Qingling Isuzu original parts, Japan Isuzu original parts, and high-quality branded parts.
Industry experience
Cooperative Suppliers
Parts Inventory(SKUS)
Company Employees
general warehouse
Office Environment
Our Exhibition
2019
2020
2023
2024
2025
Honors and Partnerships
Packaging and Shipping
Frequently Asked Questions
How much experience do you have, and what truck models do you specialize in?
We have 29 years of professional experience specializing in commercial vehicle engine parts. Our primary focus is on heavy-duty truck models, particularly ISUZU and HINO. With our extensive industry knowledge, we know exactly what you need.
What is the quality of your Alternator Adjusting Bolt? Do they meet OEM standards?
Yes, all our products strictly adhere to OEM standards. Our Alternator Adjusting Screws are manufactured from high-strength materials for exceptional durability, high thread strength, and reliable operation. They are engineered for seamless integration, ensuring precise tension adjustments, secure fastening, and optimal belt alignment to maintain stable power output.
Can I purchase all the parts I need in a single order?
Absolutely. We pride ourselves on being a one-stop supply for our customers. We provide a complete range of parts for ISUZU trucks, including Electrical Systems, Engine Systems, Chassis Systems, and more. You can easily source everything you need in one consolidated order.
Do you keep parts in stock, and how fast is delivery?
Yes, we maintain a large, stable inventory for popular and hot-selling models so they are ready to ship. We arrange deliveries quickly and efficiently to significantly reduce your waiting time.
How do you package the parts to ensure they aren't damaged during shipping?
We employ secure and professional packaging solutions to ensure your order remains in perfect condition. Each component is enclosed using specially designed packaging materials that effectively resist external impacts, providing comprehensive protection for all internal parts during long-distance transportation.
What kind of customer service and support can I expect?
Our professional sales team is dedicated to providing excellent service. You can expect fast response times, accurate part matching to ensure you get exactly what you need, and reliable after-sales support.
What quality options do you offer for your parts?
We offer a variety of quality tiers to suit your specific preferences and budget, while ensuring quality across the board. You can choose from:
China ISUZU (Qingling) Quality
Famous Brand Aftermarket Quality
Original Japanese ISUZU Quality
Do you offer discounts for bulk orders or B2B partners?
Yes, we do! We offer flexible pricing depending on your needs. If you are a truck parts reseller, distributor, or commercial company, we can provide significant discounts. Clients who order multiple pieces in a single order are guaranteed to receive our best pricing.
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For more information about us or need us help you finding Isuzu spare parts ,please inbox us .
Contact our team with your OEM part number, VIN, or fleet details for a precise recommendation.
Our address
Baishiyi Jiulongpo District, High-tech Zone,Chongqing,China
Phone Number/Whatsapp/wechat
+8617383152089
ZCMisuzu@guanglian99.com
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