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8971398420 Rear Brake Wheel Cylinder Assembly LH For ISUZU NHR NKR NLR ELF NMS JMC Kaiyun
Direct replacement rear brake wheel cylinder assembly LH (left hand side) for ISUZU NHR, NKR, NLR, ELF, NMS, JMC, and Kaiyun light-duty trucks OE cross reference: 8941281431, 8941281432, 8941281433, 8970786820, 8971398420, 8-94128143-1, 8-94128143-2, 8-94128143-3, 8-97078682-0, 8-97139842-0 LH (Left Hand) side – Rear axle drum brake application Choose from 3 quality levels – China ISUZU (Qingling) Quality / Famous Brand Aftermarket Quality / Aftermarket Quality Critical safety component – Restores proper brake shoe actuation and stopping power MOQ: 1 piece
Description
Products Overview
The Rear Brake Wheel Cylinder Assembly LH (Left Hand) is a critical component of the rear drum brake system on ISUZU light-duty trucks. This hydraulic cylinder converts brake fluid pressure into mechanical force, pushing the brake shoes against the brake drum to slow or stop the vehicle .
This wheel cylinder is specifically designed for the left hand (LH) side of the rear axle on ISUZU NHR, NKR, NLR, ELF, NMS, JMC, and Kaiyun series vehicles – widely used for cargo transport, delivery services, commercial fleets, and light commercial applications worldwide .
Products Specifications
8973872193 ISUZU Brake Fluid Reservoir Image
| Parameter | Specification |
|---|---|
| Product Name | Rear Brake Wheel Cylinder Assembly LH / Left Hand Rear Brake Cylinder / Brake Slave Cylinder |
| OE Numbers | 8941281431, 8941281432, 8941281433, 8970786820, 8971398420, 8-94128143-1, 8-94128143-2, 8-94128143-3, 8-97078682-0, 8-97139842-0 |
| Position | LH (Left Hand Side) – Driver side for LHD vehicles |
| Application | Rear Axle – Drum Brake System |
| Quality Options | China ISUZU (Qingling) Quality / Famous Brand Aftermarket Quality / Aftermarket Quality |
| Body Material | High-grade cast iron |
| Bore Finish | Precision-honed – Smooth surface for seal longevity |
| Piston Material | Aluminum or steel (dependent on quality tier) |
| Seal Material | EPDM or high-temperature rubber (brake fluid compatible – DOT 3, DOT 4) |
| Inlet Thread | Standard brake line fitting (ISUZU OEM specification) |
| Bleeder Screw | Included – 8mm or 10mm (OEM specification) |
| Mounting Type | 2-bolt flange mount to backing plate |
| Compatible Models | ISUZU NHR, NKR, NLR, ELF, NMS, JMC, Kaiyun (see fitment table) |
| H/S Code | 8708309900 |
| Place of Origin | China |
| MOQ | 1 piece |
| Warranty | 1 Year |
ISUZU drum Brake Parts System Parts
Drum brakes use friction between brake shoes and a rotating drum to stop or slow down a vehicle. Here's a breakdown of the key components and their functions:
1. Adjuster Lever• Automatically adjusts the brake shoes as they wear to maintain optimal distance and consistent braking performance.
2. Brake Shoe• A curved metal backing that presses against the drum to create friction when the brake is applied, slowing or stopping the wheel.
3. Brake Lining• High-friction material attached to the brake shoe that contacts the drum and absorbs heat to provide the necessary friction for braking.
4. Anchor• A stationary point that supports the brake shoes when not in use, ensuring they remain properly aligned.
5. Back Plate• A metal plate that supports the drum brake assembly and protects the internal components from dirt and debris.
6. Parking Lever• Engages the brake shoes against the drum when the parking brake is applied, holding the vehicle stationary.
7. Wheel Cylinder• Contains pistons that, when activated by hydraulic brake fluid, push the brake shoes outward to engage the drum.
8. Spring• Pulls the brake shoes back to their resting position after the brake pedal is released, preventing unnecessary drag.
9. Shoe Hold Spring• Secures the brake shoes to the back plate, ensuring smooth operation without shifting.
10. Hold Down Pin• A pin-and-clip system that fastens the brake shoes to the back plate, keeping them securely in place during operation.
Related Products
More Related Parts You May Need
| Part | OEM Number (Typical) | Purpose |
|---|---|---|
| Rear Brake Wheel Cylinder RH | Various | Right hand side cylinder – Contact us for availability |
| Brake Shoes (Rear) | Various | Friction material for braking |
| Brake Drum (Rear) | Various | Rotating friction surface |
| Brake Hardware Kit | Various | Springs, pins, retainers for brake shoe installation |
| Brake Line / Hose | Various | Transfers fluid to wheel cylinder |
Signs Your Brake Reservoir Needs Replacement
| Symptom | What You May Notice | What It Means |
|---|---|---|
| Brake fluid leak from rear wheel | Fluid dripping from inside the brake drum or running down the tire/backing plate | Internal seal failure – Brake fluid escaping past the piston |
| Low brake fluid level (reservoir) | Repeated need to top off brake fluid with no visible master cylinder leak | Fluid loss through one or more wheel cylinders |
| Spongy or sinking brake pedal | Pedal feels soft, slowly sinks toward the floor under steady pressure | Air in brake system due to fluid loss or internal cylinder bypass |
| Reduced braking performance | Vehicle takes longer to stop – Brakes feel weak | One or more wheel cylinders not applying full force |
| Vehicle pulls to one side when braking | Steering wheel pulls left or right during braking | Uneven brake force between left and right wheels |
| Rear brakes grab or drag | Vehicle feels like brakes are partially applied – Reduced fuel economy | Piston seized or sticking in the cylinder bore |
| Visible brake fluid on backing plate or drum | Wet appearance or drips on the rear brake backing plate | Active external leak requiring immediate replacement |
| Grinding or scraping noises when braking | Unusual sounds from rear wheels | Contaminated brake shoes or metal-to-metal contact due to fluid leakage |
When a wheel cylinder fails due to internal corrosion, seal deterioration, or piston seizure, brake performance is severely compromised. Common symptoms include brake fluid leaks, spongy or sinking brake pedal, uneven braking, reduced stopping power, and complete brake failure on one wheel .
Replacing a failed wheel cylinder with a high-quality unit restores proper brake function, ensures balanced braking between left and right wheels, and maintains safe vehicle operation.
At our store , you can choose from 3 quality levels – China ISUZU (Qingling) Quality / Famous Brand Aftermarket Quality / Aftermarket Quality.
Packaging & Shipping
| Item | Details |
|---|---|
| Packing | Neutral packing (standard) or customer's requirement |
| MOQ | 1 piece |
| Shipping Methods | Express (DHL/FedEx), Sea Freight, Air Freight |
| Delivery Time | 1–8 working days |
| Worldwide Shipping | Yes |
| Payment Methods | TT, PayPal, Western Union, Trade Assurance |
Why Choose Us?
29 Years of One-Stop Supply for Full Isuzu Models
With nearly three decades of experience, we are a dedicated one-stop supplier for all Isuzu truck models. From light-duty NHR to heavy-duty NQR, we have the parts you need, when you need them.
Three Quality Levels – One Simple Choice
We offer Aftermarket, Famous Brand, and China ISUZU (Qingling) Quality on one page. Compare and choose the option that best fits your budget and reliability requirements without searching multiple suppliers.
China ISUZU (Qingling) Quality – OEM-Level at Competitive Price
Factory-grade components manufactured to meet ISUZU's original specifications. Precision-machined bores, high-quality seals, and corrosion-resistant finishes provide the best value for fleets and repair shops.
Famous Brand Aftermarket Quality – Maximum Reliability
Premium wheel cylinders from globally recognized brake brands such as TRW, Bosch, and Aisin. Superior seal materials, precision-honed cylinders, and extended service life for safety-critical applications.
All Cylinders Feature Durable Cast Iron Construction
Every wheel cylinder is built with corrosion-resistant cast iron, precision-honed bores for smooth piston movement, high-quality rubber seals, bleeder screws, and protective dust boots for extended service life.
Low MOQ & Fast Global Delivery
Order just one piece or hundreds – we accommodate all needs. Fast shipping options deliver within 1 to 8 working days worldwide, backed by a full one-year warranty.
Bulk Discounts for Fleets, Shops & Distributors
We offer attractive wholesale pricing for larger quantities. Our dedicated support team is always available to assist with fitment, installation, or any other questions.
FAQs
One-stop Isuzu truck parts supplier from China,Focus on ISUZU parts sale over 29 years .
Our address
Baishiyi Jiulongpo District, High-tech Zone,Chongqing,China.
Phone Number/Whatsapp/wechat
+8617383152089
ZCMisuzu@guanglian99.com
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