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  2. sku: 17501265564709682
  3. OPTIBELT 021903137A

OPTIBELT 021903137A Nos Vw Bay Bus Fan Belt 914

fits make: Porsche.

021903137a Optibelt Vintage Nos Vw Bay Bus Type 4 Porsche 914 Fan Belt Germany

( Brand: Optibelt ), ( Manufacturer Part Number: 021903137A ), ( Type: V-belt ), ( Oe/oem Part Number: 021 903 137a ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Country Of Origin: Germany )

Review OPTIBELT Vintage Nos Vw Bay Bus Type Porsche 914 Fan Belt Germany

The Optibelt 021903137A fan belt is an essential component for the cooling system of VW Bus, Baywindow, and Porsche 914 models. This fan belt, manufactured by the renowned Optibelt brand, is designed to provide reliable and consistent performance in various operating conditions.

The fan belt is a V-ribbed belt, which means it features a unique V-shaped cross-section. This design ensures an optimal contact pressure between the pulleys and the belt, thereby reducing the risk of slippage and enhancing the power transmission efficiency.

The Optibelt 021903137A fan belt is made of high-quality rubber compound. This material is resilient, flexible, and durable, enabling the belt to withstand the extreme temperatures and stresses it encounters during operation. Moreover, the rubber compound is resistant to oil, fuel, and other automotive fluids, ensuring the belt remains unaffected by the harsh automotive environment.

The belt's size is 120 x 4 x 1015 mm, and it comes with a width of 9.5 mm. This size is suitable for various VW Bus, Baywindow, and Porsche 914 models, making it a versatile and widely applicable solution for cooling system fan belts in these vehicles.

The Optibelt 021903137A fan belt is reinforced with strong and flexible steel cords. These cords provide additional strength and stability to the belt, ensuring it can handle the torque and tension required during vehicle operation. Furthermore, they improve the belt's resistance to wear and tear, extending its overall lifespan.

Lastly, the Optibelt 021903137A fan belt is engineered to meet or exceed the original equipment manufacturer (OEM) specifications. This ensures a perfect fit and optimal performance in your vehicle. Additionally, it guarantees that the replacement belt functions as intended and provides the same level of cooling efficiency as the original belt.

In summary, the Optibelt 021903137A fan belt is a high-performance, durable, and reliable replacement for the cooling system fan belt in VW Bus, Baywindow, and Porsche 914 models. Its V-ribbed design, high-quality rubber compound, steel cord reinforcement, and OEM compliance make it an excellent choice for maintaining the cooling system and ensuring the longevity of your vehicle.

Pros and Cons of Buying Optibelt 021903137A NOS VW Bay Bus/Porsche 914 Fan Belt

The Optibelt 021903137A NOS (New Old Stock) fan belt is a popular replacement option for VW Bus and Porsche 914 models. Below, we'll discuss its advantages and disadvantages to help you make an informed decision.

Pros:

1. Original Equipment: This fan belt is an original equipment replacement, which means it is an exact match to the factory-installed belt in your VW Bus or Porsche 914.

2. Durability: Optibelt is a reputable brand known for manufacturing high-quality fan belts that offer excellent durability and reliability.

3. Smooth Operation: A new fan belt ensures smooth engine operation and prevents issues like overheating, which can save you from costly repairs.

4. Peace of Mind: Buying a new NOS fan belt gives you peace of mind knowing that you've invested in a genuine part that will function optimally for an extended period.

Cons:

1. Cost: Optibelt fan belts, especially the NOS versions, tend to be more expensive than aftermarket alternatives.

2. Availability: NOS fan belts may be harder to find compared to aftermarket options. You may need to check multiple sources or wait for stock availability.

Conclusion:

When deciding to buy the Optibelt 021903137A NOS fan belt, consider the importance of having an original equipment replacement, the durability and smooth operation it provides, and the peace of mind that comes with investing in a high-quality part. Weigh these advantages against the higher cost and potential availability issues to make your final decision.

Recommendation:

If you prioritize having a genuine and reliable fan belt for your VW Bus or Porsche 914, the Optibelt 021903137A NOS is a solid choice. To mitigate the cost and availability concerns, consider shopping around at various automotive parts suppliers or online marketplaces to find the best price and availability for this fan belt.

Details:

Not notched like current production belts that are 'kinda' the right size. It is A probably 40 year old belt. Please consider this to be best used for display. If you do decide to use it, that choice is yours.

A little dirty from shelf wear. Markings on the outside of belt are still nice. VW part number 021 903 137A, with logo on it. There are some production numbers on the inner edge of belt.

Correct, original 9.5 x 965 size. Great for show display, wall hanger, or that top notch restoration barely gets driven. Shipping in the USA is by USPS. No lamination, separation, etc.

Rare, NOS, genuine VW, Made In Germany, OPTIBELT fan belt for Type 4 engines, and Porsche 914. I typically print shipping labels in the afternoon / evening. More pics available upon request. With original VW Autobahn cardboard sleeve.

Belt is still flexible. Please see all pics.

part #: 021903137a prices

  • $12.54-$55.00

specifications bepubrac:

  • for makes: Porsche
  • brand: Optibelt
  • mpn: 021903137a
  • type: V-belt
  • oe/oem part number: 021 903 137a
  • universal fitment: No
  • vintage part: Yes
  • country of origin: Germany

offer bepubrac:

  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • started: October 30, 2025
  • quantity: 1

returns bepubrac:

  • policy: No Returns

general bepubrac:

  • Car Truck Parts Accessories > Accessory Belts > Belts
  • condition: For parts or not working

seller bepubrac:

  • rating: 100.0%
  • city: Asheville, North Carolina
  • # reviews: 1973

payments bepubrac:

  • wallet: Paypal
  • credit card: Diners-club
  • other

shipping bepubrac:

  • service: USPS Ground Advantage
  • carrier: USPS
  • class: Standard
  • transit: 11-18 Days
  • cost: $0.00
  • type: Fixed
for makes: porsche, type: v-belt, oe/oem part number: 021 903 137a, universal fitment: no, vintage part: yes, country of origin: germany,
category: auto parts > car truck parts accessories > accessory belts > belts, sku: 17501265564709682,
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4 offers $12.54–$55.00 USD
  • Offer #1 priced at $55.00 + $0.00 shipping estimate = $55.00* total. It is A probably 40+ year old belt. VW part number 021 903 137A, with VW logo on it.FREE SHIPPING
  • New. Offer #2 priced at $16.07 + $19.25 shipping estimate = $35.32* total. Weight (kg).+$19.25 shipping
  • New. Offer #3 priced at $12.54 + $13.39 shipping estimate = $25.93* total. HONDA QUINTET (SU) 1.6 EX Hatchback Petrol 10/1980 06/1981 FWD 8 80 59 Drive Belt fits PORSCHE 914 2.0 69 to 73 V Belt Continental.+$13.39 shipping
  • Neu. Offer #4 priced at $7.18 + $116.50 shipping estimate = $123.68* total. Agg.: Wasserpumpe, Baujahr bis : 12/1990. Agg.: L fter, angetriebene Aggregate : angetr.+$116.50 shipping

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