199012340019 Rear Wheel Oil Seal With Groove

The 199012340019 Rear Wheel Oil Seal with Groove is a key sealing part for HOWO heavy-duty trucks' rear wheel hub systems (tractors, cargo trucks, dump trucks).It's installed between the rear wheel hub and axle shaft, forming a tight seal to stop hub lubricating oil from leaking and keep dust, mud, and water out of the hub.This ensures the hub's internal bearings and gears stay lubricated and clean, which is important for reducing wear, avoiding hub overheating or seizing, and extending the rear wheel system's life.

We use quality materials and precise manufacturing to make it: the seal body is high-strength NBR with wear-resistant additives, oil-resistant, high-temperature resistant, and elastic.The metal skeleton is cold-rolled steel plate, rigid and without deformation during installation/operation.The sealing lip has a special wear-resistant coating, which reduces friction with the axle shaft.The outer diameter, inner diameter, width, and groove structure fit the original HOWO rear wheel hubs (A7, T7H, T5G with HW series axles) exactly, so no modifications are needed for installation.It withstands tough conditions: 120℃ hub temp, 8m/s high-speed rotation friction, mud/water erosion, with no seal lip aging, metal skeleton rust, or groove deformation.

Replacement is easy: take apart the rear wheel, remove the old oil seal with a special tool, clean the seal groove, apply a thin layer of lubricating oil to the new seal lip, press the new seal evenly into the groove (no tilting), and reassemble the wheel.Before shipping, we test them strictly: sealing (no leaks at 0.4MPa), wear resistance (100,000 rotation cycles with no excess wear), high-temperature performance (stable at 120℃ for 3 hours), so it is reliable.

Superior sealing: High-elastic nitrile rubber + wear-resistant lip coating + groove design form multi-layer sealing, preventing oil leaks and foreign matter. Leakage rate is 99% lower than ordinary non-groove oil seals.

Strong wear & high-temp resistance: NBR rubber with wear additives withstands 150℃ without aging, wear-resistant lip coating reduces friction-life 80% longer than ordinary oil seals.

Perfect for HOWO: Made to HOWO's original rear wheel hub design-size, groove shape, tolerance match exactly. No trimming or adapters needed-saves 40% maintenance time vs universal oil seals.

Stable & reliable: Metal skeleton enhances rigidity, no deformation at high speed; groove stores lubricating oil, reducing lip wear. Works stably in complex conditions-rear wheel hub system lasts 380k+ km.

This Rear Wheel Oil Seal With Groove (Model: 199012340019) is only for HOWO heavy-duty trucks-A7, T7H, T5G models with HW series axles (original rear wheel hubs). It won't work on HOWO with non-HW series axles or other brands (FAW Jiefang, Dongfeng Tianlong).

Product Model: 199012340019

Applicable vehicles: HOWO A7/T7H/T5G (HW series axles, original rear wheel hubs)

Type: Rear wheel oil seal with groove (nitrile rubber + cold-rolled steel skeleton)

Function: Seal hub lubricating oil, prevent leaks/foreign matter, protect hub components

Material: Seal body (NBR nitrile rubber with wear additives); skeleton (cold-rolled steel plate); lip (special wear-resistant coating)

Installation: Direct replacement-fits original HOWO hub seal groove and axle shaft size

Working conditions: -30℃~120℃; ≤8m/s linear speed; ≤0.4MPa sealing pressure; ≥380,000 km life

Q1: Works on HOWO trucks with non-HW series axles?

A1: No-non-HW axles have different hub structures and seal groove sizes. It causes loose seals (oil leaks) or can't install (mismatched diameter), leading to hub wear. Get the oil seal for the corresponding axle series instead.

Q2: Rear wheel hub leaking oil after new seal install?

A2: First, clean the seal groove (no oil/debris/scratches). If clean, check installation (no tilting/reverse lip). If installed correctly, check axle shaft surface (scratches/wear-repair/replace axle shaft). Still leaking? Replace the oil seal (rare defect).

Q3: How to maintain the rear wheel oil seal?

A3: 1. Use qualified hub lubricating oil (avoid inferior oil); 2. Clean groove and axle shaft thoroughly during replacement; 3. Check hub for looseness/abnormal temp every 20k km; 4. Avoid long-time driving in deep mud/water.

Q4: Need to replace both sides of the rear wheel oil seal?

A4: Recommended but not mandatory. Both sides work under the same conditions-replacing both ensures consistent sealing, avoids frequent wheel disassembly,and  reduces maintenance costs.

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