WG9231320001 Oil Seal For Heavy Truck

The WG9231320001 Oil Seal for Heavy Truck is a key sealing part for SINOTRUK HOWO heavy-duty trucks (T7H, T5G, A7, TX models). It's used to seal lubricating oil in transmission shafts, axle hubs, and differential bearings-preventing leakage and blocking dust, water, gravel from entering internal components. This ensures good lubrication of mechanical parts during high-speed rotation and heavy loads, avoiding wear, corrosion, or jamming-protecting mechanical service life and vehicle safety. We use high-quality materials and precise manufacturing: the rubber body is imported nitrile rubber-oil-resistant, high-temperature resistant, and elastic. The skeleton is high-carbon steel-reinforced and anti-deformation. The double-lip + dust-proof edge design enhances sealing and impurity blocking. The dimensions (inner diameter 80mm, outer diameter 110mm, width 12mm) fit the original SINOTRUK HOWO installation specs exactly, so it installs with no mods. It handles tough conditions-120℃ high temperature, 2200rpm rotation, 2-400Hz vibration, rain/salt corrosion-without lip wear, skeleton deformation, or rubber aging. Swapping it is easy: no need to disassemble the entire assembly, just remove the old oil seal, clean the installation groove, apply a little lubricating oil to the new seal's lip, press it into the groove evenly, and check tightness. Before shipping, we test 'em strict: check sealing performance (no leaks at 0.8MPa), aging resistance, and wear resistance-so it's reliable. We've supplied to 65+ SINOTRUK after-sales, repair shops, fleets for 10 years-users praise its sealing effect and stability.

Product Model: WG9231320001

Applicable vehicles: SINOTRUK HOWO T7H/T5G/A7/TX heavy-duty trucks

Applicable parts: Transmission shafts, axle hubs, differential bearings

Type: Heavy-duty truck oil seal (imported nitrile rubber + high-carbon steel skeleton + double-lip + dust-proof edge)

Function: Seal lubricating oil, prevent leakage, block impurities, protect mechanical components

Material: Rubber body (imported nitrile rubber NBR); skeleton (high-carbon steel Q235)

Installation: Direct press-fit-matches original groove dimensions (80mm×110mm×12mm)

Working conditions: -30℃~120℃; ≤2200rpm; ≥0.8MPa sealing pressure; ≥300,000 km life

①Superior sealing: Double-lip + dust-proof edge design + high-elasticity nitrile rubber ensure tight fit, blocking oil leakage and impurities. Sealing reliability 35% higher than ordinary single-lip oil seals.

② Strong structure: Embedded high-carbon steel skeleton enhances shape retention-prevents deformation/displacement. Structural stability 28% higher than skeleton-free oil seals.

③ Perfect for SINOTRUK HOWO: Made to original mechanical system design-inner/outer diameter and width match. No trimming or adapters needed-saves 30% maintenance time vs universal oil seals.

④ Durable & wear-resistant: Imported nitrile rubber resists oil/high temperature/aging, high-carbon steel skeleton resists impact/deformation. Works stably in extreme conditions-lasts 300k+ km.

This Oil Seal (Model: WG9231320001) is only for SINOTRUK HOWO T7H/T5G/A7/TX heavy-duty trucks. It fits transmission shafts, axle hubs, differential bearings with installation dimensions 80mm (inner diameter) × 110mm (outer diameter) × 12mm (width). It won't work on non-HOWO brands (Shaanxi Automobile DeLong, FAW Jiefang) or modified HOWO models-different shaft diameters/groove sizes, can't install or work normally.

Q1: Works on Shaanxi Automobile DeLong heavy trucks?

A1: No-DeLong has different shaft diameters/groove sizes. It causes mismatched installation, poor sealing, or shaft damage. Get the DeLong-specific oil seal instead.

Q2: Oil leakage after new oil seal install?

A2: First clean the installation groove (remove rust/burrs/debris). If clean, check oil seal installation direction (lip faces oil side). If direction is correct, ensure even press-fit (avoid tilting). Still leaking? Confirm shaft size and replace with correct model.

Q3: How to maintain the oil seal?

A3: 1. Avoid sharp tools during installation (prevent lip scratches); 2. Check for wear/deformation/oil leakage every 20k km; 3. Keep mechanical components clean; 4. Replace lubricating oil regularly per vehicle manual.

Q4: Need to replace oil seals in pairs?

A4: Not mandatory but recommended. Uneven wear of related components affects single seal performance. Inspect all seals in the same system and replace if aged/worn for optimal sealing.

Hot Tags: wg9231320001 oil seal for heavy truck, China wg9231320001 oil seal for heavy truck manufacturers, suppliers, factory