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Hella Engine Oil Pump Assembly - Scania 4 - Series Bus

Hella Engine Oil Pump Assembly - Scania 4 - Series Bus

IMPORTANT: Please verify fitment and measurements before purchasing. Check your vehicle's specific...

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eBayHELLA 8TW 358 313-361 AUXILIARY WATER PUMP (COOLING WATER CIRCUIT)
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Product Information

Full details

This Hella Engine Oil Pump Assembly (Part Number: 8TO 358 222-031) is designed for Scania 4-series buses manufactured between 1997 and 2007. It offers reliable, OE-quality performance to ensure proper engine lubrication. A key benefit is its precise fitment, reducing installation complexity. However, it is crucial to verify the specific engine variant and dimensions against your vehicle's requirements before purchasing, as variations exist.

All features

Model Part Number8TO 358 222-031
BrandHella

Extended Product Information

FAQs

How do I confirm if this oil pump fits my Scania bus?

Verify your vehicle's Make (Scania), Model (4-series bus), Year (1997-2007), Variant (K 114), and exact engine specifications (KW/HP). Cross-reference the part number (8TO 358 222-031) and OE number (10570177) with your vehicle's original part or service manual. Hella emphasizes checking physical dimensions as variations can occur.

What is the difference between this oil pump and other Hella oil pumps?

Other Hella oil pumps are designed for different vehicle makes, models, and engine types. Part number 8TO 358 222-031 is specifically for certain Scania 4-series bus configurations. Always match the part number and compatibility list to your specific vehicle.

How does the number of teeth (77) affect the pump's performance?

The number of teeth on the pump's gears is a critical design specification that determines the volume of oil it can displace per rotation, ensuring the correct oil flow and pressure for the specific engine it is designed for.

Is professional installation necessary?

Yes, professional installation by a qualified mechanic is strongly recommended to ensure correct fitment, proper sealing, and to prevent potential damage to the pump or engine during the process.

What maintenance does the Hella oil pump require?

The oil pump itself is a sealed unit and requires no routine maintenance. However, its performance depends heavily on the engine's overall oil system. Regular oil changes and filter replacements are essential.

What is the warranty for Hella parts?

Warranty information is typically provided by the retailer. Please refer to the point of purchase for details on warranty coverage for Hella automotive components.

Can I use this pump if my Scania bus engine has a different horsepower rating?

It is critical to match the exact engine specifications (KW/HP) listed in the compatibility information. Using a pump designed for a different horsepower rating may result in improper oil flow or pressure, potentially damaging the engine. Always verify compatibility precisely.

Troubleshooting

Engine oil pressure warning light illuminates

Verify oil level is correct. Check for oil leaks around the pump and seals. If no external leaks are found and the oil level is adequate, the oil pump may be failing or there could be an internal blockage. Professional inspection is required.

Unusual engine noise (knocking or grinding)

This could indicate insufficient lubrication due to a faulty oil pump. Check oil pressure immediately. If pressure is low, the pump may need replacement.

Part does not fit during installation

Re-confirm vehicle compatibility, including engine variant and specific measurements, against the product's specifications and your vehicle's service manual. Ensure no foreign objects or debris are obstructing the mounting area.

Pros and Cons

Pros

  • Manufactured to OE-quality standards for reliable operation.
  • Designed for precise fitment, simplifying installation.
  • Ensures proper engine oil circulation for optimal performance and longevity.
  • Backed by Hella's reputation as a trusted automotive parts supplier.

Cons

  • Requires careful verification of vehicle compatibility and specific engine dimensions before purchase.
  • Limited to specific Scania 4-series bus models and engine variants.
  • Not a universal part; incorrect fitment can lead to installation issues or component damage.

Setup, Compatibility & Care

Compatibility Verification: Before installation, meticulously compare the vehicle's specifications with the compatibility list provided. Pay close attention to the Make (Scania), Model (4-series bus), Year (1997-2007), Type (Bus), Variant (K 114), and Engine specifications (KW/HP). Hella strongly advises checking measurements and dimensions, as variations may exist even within the same model year.

Installation: This part is designed for direct replacement. Professional installation by a qualified mechanic is highly recommended to ensure correct fitting and prevent damage. Ensure the engine is cool and all necessary safety precautions are taken.

Care: As a sealed component, the oil pump itself requires no routine maintenance. However, its performance is directly dependent on the overall engine oil system. Regular oil changes with the correct grade of oil and timely replacement of the oil filter are crucial for its longevity and the health of your engine. Always use high-quality engine oil and filters as specified by Scania.

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