Inner Rear Hub Oil Seal For ISUZU ELF NPR NQR 700P 8971229370 8-97122937-0 8970239771 8-97023977-1

 

 

Part No:8-97122937-0 8-97023977-1 8971229370 8970239771

Part Name:Inner Rear Hub Oil Seal/SEAL; OIL,RR HUB,Inner

Truck Model Fit For: ISUZU ELF NPR NQR 700P

Engine: 4HK1-TCS 

Position: Inner Rear Hub

Function:Seal Lubricating Oil, Prevent Leakage, Block Impurities, Protect Hub Bearing

Material: Rubber Seal Lip, Steel Inner Case

Size:81.7*121*12mm(Rear Axle Shaft Oil Seal)

MOQ: 2 Piece

Place of Original:China

Quality ISUZU original quality or aftermarket quality

Color:As picture shown

Packing: neutral box/color box/customer brand package/Japanese Isuzu original packing box

Shipping:By Express, By Sea ,By Air

Delivery Time:1-8 Working days

Shipping:Worldwide shipping

Payment:TT.paypal.Western Union.Trade Assurance

Warranty:1 Year

 

 

 

 

 

 

 

 

 

 

The inner rear hub oil seal is a critical automotive component located at the junction of the wheel hub and the axle. Its primary functions are to prevent the escape of lubricant and block contaminants from entering the hub bearing assembly.

 

It is installed within the hub assembly, between the wheel bearings and the axle housing. In certain solid rear axle configurations found in rear-wheel or all-wheel drive vehicles, accessing this specific seal may require partial disassembly of the differential housing components.

 

The inner rear hub oil seal is typically a lip seal design, composed of a flexible element bonded to a metal outer shell. It often features a garter spring that loads the sealing lip, ensuring consistent contact with the rotating shaft to form a leak-proof barrier.

 

The seal ensures that grease or gear oil is retained within the hub assembly. This is vital for reducing friction and heat buildup in the bearings, which ensures smooth wheel rotation and prolongs the life of the components. It acts as a barrier to keep water, dust, dirt, and other road debris out of the sensitive hub bearing system. These contaminants degrade the lubricant's effectiveness and lead to premature wear.By preventing lubricant from leaking onto the brake drums or pads, the seal helps maintain the integrity and safety of the braking system.

 

 

 

 

 

1.We are profesional. As one of the largest Isuzu parts wholesaler in ChinaWe are a professional team with 29 years of experience in ISUZU spare parts.Worldwide shipping supported .

 

2.More Options.We can offer Japanese ISUZU original quality, and Aftermarket quality. You can choose what you like.

 

3.Ready to Ship & Warranty Protected. Most items are in stock and can be dispatched within 2 working days.12 Month Warranty and test before shipment for Each Product.

 

4.Small Quantity acceptable. Both bulk order and small quality we can accept .

 

 

 

1.Preparation and Removal:

Secure the vehicle on jack stands. Remove the wheel, brake assembly, and hub nut.

• Remove Old Seal: Use a Seal Puller or pry bar to carefully remove the old seal. Note its original depth and orientation before discarding.
• Thorough Cleaning: Clean the hub bore, bearing seats, and spindle/axle flange using National's cleaning guidelines. Any surface burrs or rust can cause the new seal to fail prematurely.

 

 

2.Installing the New Inner Seal:

• Orientation: Position the seal with the spring side (main sealing lip) facing inward toward the hub's interior-the side containing the lubricant.
• Lubrication: Apply a thin film of clean lubricant to the outer diameter (O.D.) and the inner sealing lip to ensure a smooth press-fit and prevent dry-start friction.
• Positioning: Place the seal squarely in the hub bore, ensuring it is perfectly aligned and not tilted.
• Seating: Use a seal driver to tap the edges evenly. Apply consistent pressure until the seal is fully seated against the shoulder or flush with the hub surface. Never strike the metal ring of the seal directly with a hammer.

 

 

3.Reassembly:

• Bearings: Pre-lube the inner bearing and place it into the race before installing the seal.
• Mounting the Hub: Carefully slide the hub assembly onto the spindle, avoiding contact between the seal lip and the spindle threads to prevent tearing.
• Torque Adjustment: Tighten the adjusting nut using a torque wrench according to the manufacturer's specifications. Proper Wheel Bearing Adjustment is critical for seal longevity.
• Final Check: Refill the hub with the appropriate oil level (if applicable). Reinstall brake components and wheels, then test-drive to verify there are no leaks.

 

 

 

 

 

The primary symptoms of a failing inner rear hub oil seal include visible oil/grease leaks around the wheel area, a low gear oil level in the differential, unusual noises like grinding, a burning smell, and brake contamination

 

 

 

 

 

Q1: Why do new seals sometimes leak immediately after installation?

A1: The most common cause is installation damage. This includes "cocking" the seal (installing it unevenly), damaging the delicate sealing lip on the sharp edges of the axle splines, or failing to clean the hub bore properly, which prevents a tight Press-Fit Seal connection.

 

Q2: What is the most dangerous symptom of a failing inner seal?

A2: Brake Contamination. Because the inner seal is located behind the wheel assembly, a leak often sprays gear oil directly onto the brake shoes or pads. This causes a dramatic loss of stopping power and can lead to the vehicle pulling violently to one side during braking.

 

Q3: Is a leaking inner seal different from an outer seal leak?

A3: Yes. An outer seal leak usually just messes up the hub cap or wheel exterior. An inner seal leak is often more severe because it can drain the Differential Fluid Level, leading to catastrophic failure of the rear gears in addition to the wheel bearings.

 

Q4:Which direction does the "spring side" face?

A4:In almost all automotive applications, the garter spring side (the recessed side with the metal coil) must face the source of the fluid (inward toward the differential or grease reservoir).

 

Q5:Can I continue driving if the oil seal is leaking?

A5:It is not advisable to continue driving with an oil seal leak. Even a minor leak can lead to loss of lubrication, which may cause rapid bearing damage. This could result in more costly repairs and even pose serious safety risks, such as wheel hub detachment or brake failure.

 

Q6:What are the consequences of ignoring a leaking oil seal?

A6:Ignoring an oil seal leak can trigger a chain reaction: the bearing may overheat and fail due to insufficient lubrication, potentially damaging the axle. Additionally, leaked oil can contaminate brake pads and brake drums, reducing braking efficiency and necessitating the replacement of these components.

 

This product is backed by a 12-month warranty against manufacturing defects. If you experience any quality-related issues during the warranty period-such as oil leakage, deformation, premature wear, or insufficient sealing performance-we will provide a free replacement or a full refund. Please note that damage caused by improper installation, accidents, or neglect is not covered under this warranty.

 

 

 

 

 

Message us if you need any help about ISUZU truck spares .we are Professional Isuzu Truck Parts Supplier with 29 years experience.

 

 

 

 

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