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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

Belts / Tensioners / Rollers

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DISPLAYING 1 to 16 (of 51 products)
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Special Order item
99919230550
Product Information
Product Information
Air con belt. SIZE: 12.5 x 1125.

porsche

Fits:
Porsche 911 Turbo 1978-83
Porsche 928 1978-89 *
*Cars upto 1989

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99919230550
99919230550

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99919230550/1
Product Information
Product Information
Air con belt. SIZE : 12.5 x 1125.

meyle

Fits:
Porsche 911 Turbo 1978-83
Porsche 928 1978-89 *
*Cars upto 1989

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99919230550
99919230550
052 013 1125

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Special Order item
99919233550
Product Information
Product Information
Air con belt. Size 12.5 x 1080.
porsche

Fits:
Porsche 928 1990-95
Car with option:
M637 Club Sport CS
M573 Air Conditioner
M639 Version GT

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99919233550
99919233550

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Special Order item
99919230650
Product Information
Product Information
Air pump belt.
porsche

Fits:
Porsche 928 S4 / GT / GTS 1987-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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99919230650
99919230650

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99919230650/1
Product Information
Product Information
Air pump belt.
Width: 13,0 mm, Length: 950,0 mm.

dayco

Fits:
Porsche 928 S4 / GT / GTS 1987-95

Click 'Zoom in' for large parts diagram.
Diagram ref no 11

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99919230650
99919230650
13A0950C

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Special Order item
99919213550
Product Information
Product Information
Alternator belt.

porsche

Fits:
Porsche 928 1978-81

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99919213550
99919213550

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99919213550/1
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Product Information
Alternator belt.
Width: 10 mm | Length: 875 mm.

gates

Fits:
Porsche 928 1978-81

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99919213550
99919213550
10A0875C

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Special Order item
99919221451
Product Information
Product Information
Alternator belt. K4 x 858.

porsche

Fits:
Porsche 928 1982-83

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99919221451
99919221450
99919221451

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99919221451/1
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Product Information
Alternator belt.

Length: 863 mm
Number of ribs: 4

meyle

Fits:
Porsche 928 1982-83

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99919221451
99919221450
99919221451
050 004 0863

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99919225050/1
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Product Information
Alternator belt. Porsche 928 1984-86

oematch

Fits:
Porsche 928 1984-86

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99919225050
99919225050

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99919225050/2
Product Information
Product Information
Alternator belt.

Length: 890 mm
Number of ribs: 5

Fits:

Porsche 928 - 1984 to 1986

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99919225050
99919225950
99919225050

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Special Order item
99919226650
Product Information
Product Information
Alternator belt.

porsche

Fits:
Porsche 928 1985-95
Cars with manual transmission only

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99919226650
99919226650
99919226950

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99919226650/1
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Product Information
Alternator Belt. Number of ribs: 6, Length: 862,0 mm.

dayco

Fits:
Porsche 928 1985-95
Cars with manual transmission only

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99919226650
99919226650
6PK862
99919226950

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Special Order item
99919234750
Product Information
Product Information
Alternator belt.

porsche

Fits:
Porsche 928 1987-95
Automatic cars only

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99919234750
99919234750

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99919234750/1
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Product Information
Alternator belt.

dayco

Fits:
Porsche 928 1987-95
Automatic cars only

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99919234750
99919234750
6PK875

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Special Order item
92860711000
Product Information
Product Information
Belt Tensioner Connection Cable.

Fits:
Porsche 928 S4 / GT / GTS 1989>>1995

Diagram Ref No 34

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92860711000
92860711000

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DISPLAYING 1 to 16 (of 51 products)
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About Belts / Tensioners / Rollers

Engine Rebuild Belts, Tensioners & Rollers – Precision Timing for Reliable Porsche Performance

Engine rebuild belts, tensioners, and rollers are essential components in maintaining your Porsche’s precise engine timing and smooth operation. These parts work together to synchronise the camshaft and crankshaft, ensuring valves open and close at exactly the right time for optimal combustion. Over time, these components can wear or deteriorate, especially under high performance or extended use, making replacement vital during an engine rebuild or major service.

At Design911, we supply a full range of genuine and high-quality belts, tensioners, and rollers for various Porsche models including, 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each component is designed for strength, accuracy, and long-lasting reliability — ensuring your rebuilt Porsche engine performs flawlessly mile after mile.

What Do Engine Belts, Tensioners & Rollers Do?

These components form the heart of the engine’s timing and auxiliary systems. They:

  • Drive key engine components, including the camshaft, alternator, and water pump.
  • Maintain accurate timing for optimal combustion and efficiency.
  • Reduce friction and noise through smooth roller and tensioner operation.
  • Ensure consistent belt tension to prevent slippage or premature wear.

Together, they guarantee your Porsche’s engine runs smoothly, efficiently, and reliably — whether cruising or driving at peak performance.

Why Do Belts, Tensioners & Rollers Fail?

Exposure to high temperatures, vibration, and constant motion causes natural wear over time. Common causes of failure include:

  • Aging rubber belts becoming brittle or cracked.
  • Worn bearings in rollers or tensioners leading to noise or vibration.
  • Loss of tension causing belt slippage or timing misalignment.
  • Contamination from oil or coolant degrading materials.
  • Extended maintenance intervals leading to unexpected failure.

Symptoms of failing components include squealing noises, poor engine performance, rough idle, or even timing belt failure, which can cause severe engine damage if ignored.

Why Replace Belts, Tensioners & Rollers During an Engine Rebuild?

Replacing these components during an engine rebuild ensures long-term reliability and eliminates the risk of future timing-related failures. A fresh set of belts, rollers, and tensioners restores precision, efficiency, and performance — protecting your investment.

Benefits of replacement include:

  • Restored precise timing and smooth operation.
  • Reduced risk of catastrophic engine failure.
  • Enhanced reliability and longevity of the rebuild.
  • Quieter, more efficient engine performance.

All components available from Design911 are made using premium-grade materials, precision bearings, and advanced heat-resistant compounds, ensuring maximum durability and performance in high-stress Porsche engines.

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