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- Porsche 924S 2.5L 1986-87
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 Turbo 2.5L 8V 1985-88
The OE Match Cam Idler Roller is a high-quality replacement timing belt guide roller designed to support and guide the camshaft timing belt within the engine timing system. Featuring an outer diameter of 32mm and a width of 21mm, this precision-engineered idler roller helps maintain correct belt routing, alignment and stability throughout engine operation.
Fits:
- Porsche 924S 2.5L 1986-87
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 Turbo 2.5L 8V 1985-88
Diagram Ref No 7
Manufactured to OE specifications for fit, function and durability, the roller is designed to withstand constant rotational loads, engine heat and high-speed operation. It is an essential service component during timing belt replacement and engine maintenance, helping to ensure reliable timing system performance and long-term engine protection.
What This Product Does:
- Guides and supports the camshaft timing belt.
- Maintains correct timing belt alignment and routing.
- Reduces belt vibration and unwanted movement.
- Promotes even belt wear across the timing system.
- Helps ensure accurate synchronisation between the crankshaft and camshaft.
- Supports smooth and reliable engine operation.
Symptoms Of Wear Or Failure:
- Squealing, chirping or grinding noises from the timing belt area.
- Excessive timing belt vibration.Rough or noisy bearing operation.
- Visible wear on the roller surface.Timing belt misalignment.
- Uneven or accelerated timing belt wear.
- Bearing play or looseness within the roller.
- Timing belt failure risk in severe cases.
Why Replacement Matters:
- The cam idler roller operates continuously whenever the engine is running and is subjected to constant rotational speeds, heat and bearing loads. Over time, the internal bearing can wear, lubrication can deteriorate and the roller surface may become damaged.
- A failing idler roller can cause timing belt misalignment, increased belt wear and excessive stress on other timing system components. In severe cases, bearing seizure or roller failure can lead to timing belt damage, potentially resulting in significant engine damage and expensive repairs.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94410527302
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Relay roller for ribbed v-belt
Ribbed V-belt idler pulley by OE Match for selected Porsche 957 and 958 Cayenne 3.0L Diesel models. This component is used within the engine auxiliary belt drive.
Fits:
Porsche 957 Cayenne Diesel 3.0L 2009 - 2010
Porsche 958 Cayenne Diesel 3.0L 2011
Diagram ref no 11
What This Product Does
The relay roller, also known as an idler pulley or guide pulley, provides a rotating contact point for the ribbed V-belt. It helps route the belt correctly around the accessory-drive components while supporting stable belt alignment.
Functions
- Guides the ribbed V-belt along its intended path
- Provides a smooth rotating surface for the belt
- Supports correct belt alignment within the accessory drive
- Helps reduce unwanted belt movement and tracking problems
Technical Details
- Part number: 95510211801
- Component type: idler pulley or relay roller for the Poly-V-belt drive
- Diagram ref no 11
Symptoms of Fault
- Squealing or chirping that changes with engine speed
- Rumbling or whining from the pulley bearing
- Visible pulley wobble while the engine is running
- Belt dust around the pulleys or nearby components
- Uneven belt tracking, glazing or edge wear
- Roughness or play when the pulley is checked with the engine switched off
Why Replacement Matters
A worn pulley bearing can create noise, unwanted movement and irregular belt tracking. Continued use may accelerate wear of the ribbed belt or other parts in the accessory drive. Inspect the belt, tensioner and adjacent rollers at the same time so that worn supporting components can be identified before reassembly.
FAQs
- Is this the belt tensioner?
No. It is an idler or guide pulley within the ribbed V-belt system. The tensioner is a separate component. - Should the belt be inspected during replacement?
Yes. Check for cracking, glazing, contamination and uneven edge wear, and inspect the other rollers and tensioner for noise or play. - How should compatibility be confirmed?
Cross-check part number 95510211801 against the vehicle model, production year, engine code and the relevant parts diagram.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510211801
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
Fits:
Porsche Cayenne 957 3.0L DIESEL 2009-10 (M05.9D)
Porsche Cayenne 958 3.0L DIESEL 2011 (M05.9E)
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510524401
The product you are viewing cross references to these numbers
- Porsche 957 Cayenne 3.0L Diesel 2007-10
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18
Outer Diameter: 65mm
Width: 26mm
Inner Diameter: 17mm
Fits:
Porsche 957 Cayenne 3.0L DIESEL 2009-12
Porsche 958 Cayenne 3.0L DIESEL
Porsche 970 Panamera 3.0L DIESEL 2012-16
Porsche 95B Macan 3.0L TDI 2014-18
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510211921
The product you are viewing cross references to these numbers
- Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-17
- Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
Accessory Drive Belt Kit (Serpentine Belt Kit)
This kit includes everything needed to replace the primary wear components of
your accessory drive system. Each kit comes complete with a new serpentine
belt, drive belt tensioner shock, tensioner pulley, two idler pulleys, and all
required hardware.
The accessory drive belt—commonly known as a serpentine belt—delivers power from the engine’s crankshaft to essential components such as the alternator, water pump, power steering pump, and air conditioning compressor. It drives these systems through a network of pulleys synchronized by the belt’s rotation.
Regular inspection of the belt is important. Look for cracking, fraying, glazing, or other signs of wear. Most manufacturers recommend replacing the belt every 50,000 to 100,000 miles. Proper belt tension is equally critical, so it’s advisable to inspect the belt tensioner and idler pulleys any time the belt is serviced.
Fits:
·
Porsche
958 Cayenne V6 3.0L Diesel 245HP 2010-17
·
Porsche
958 Cayenne S V6 3.0L Hybrid 380HP 2010-17
·
Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD
(420Hp) 2014-16
·
Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD
Executive 2014-16
·
Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD
(420Hp) 2014-16
·
Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD
Executive 2014-16
Symptoms of Accessory Drive Belt Kit Failure
- Wear and Tear: Cracking, glazing, or fraying can cause the belt to slip.
- Pulley Misalignment: Misaligned pulleys lead to uneven wear and unwanted noise.
- Improper Tension: Too much or too little tension can result in belt slip or premature component failure.
- Contamination: Oil, coolant, or debris can weaken the belt material.
- Excessive Noise: A squealing sound, especially at start-up, often indicates belt or tensioner issues.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94810240375
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
