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Auto Transmission Parts Transmission Belt OE 31316870 for Volvo
The Transmission Belt (OE Number: 31316870) is a critical powertrain component exclusively engineered for select Volvo models, responsible for transferring rotational power from the engine to the transmission (or auxiliary systems like the water pump, depending on the vehicle’s configuration). Constructed with a high-strength rubber compound reinforced with polyester or aramid cords (fibers), it balances exceptional tensile strength with flexibility—capable of withstanding high RPM (up to 6,000+ engine revolutions), extreme temperatures (-30°C to 120°C), and constant tension without stretching or snapping.
Unlike generic aftermarket belts, this OE-grade part adheres to Volvo’s strict powertrain specifications: its length, width, tooth profile (for timing/cogged variants) or rib pattern (for serpentine variants), and tension tolerance are precision-calibrated to match the original engine’s pulley system. This ensures seamless power transfer, prevents slippage (which causes power loss or overheating), and avoids premature wear of pulleys or tensioners—critical for maintaining the vehicle’s transmission efficiency and overall reliability.
Core Functions
Power Transfer: Transmits rotational power from the engine’s crankshaft to the transmission (or auxiliary components), enabling the vehicle to accelerate and maintain speed. For serpentine belt variants, it also drives essential systems like the water pump, alternator, or air conditioning compressor—ensuring no interruption to vehicle functionality.
Tension Stability: The reinforced cord structure maintains consistent tension under load (e.g., hard acceleration, towing), preventing slippage. Slippage not only reduces power delivery but also generates friction that can overheat the belt and damage pulley surfaces.
Durability Under Stress: Resists degradation from engine oil, coolant, and road debris—common contaminants that break down generic belts. Its heat-resistant rubber compound also prevents hardening or cracking in high-temperature engine bays, extending service life.
Precision Fit: Matches the exact dimensions of Volvo’s pulley system, ensuring proper alignment. Misaligned belts cause uneven wear, noise (e.g., squealing), or premature failure—this OE part eliminates alignment issues with factory-matched specifications.
Compatible Vehicles
This transmission belt (OE: 31316870) is widely compatible with Volvo’s sedan, wagon, and hatchback models. Below is a consolidated list of variants and applicable years :
Model
Applicable Years
Volvo S40 (04-)
2005–2011
Volvo V50
2005–2011
Volvo C30
2007–2011
Volvo S60 (11-) / S60 (11-18)
2011–2015
Volvo S80 (07-)
2010–2015
Volvo V60 / V60 (-18)
2011–2015
Volvo V70 (08-)
2010–2015
Notes: “(04-)” / “(07-)” / “(08-)” denote models launched from the specified year onward; “(-18)” indicates variants up to 2018. For 100% fitment accuracy, confirm compatibility with your vehicle’s VIN (Vehicle Identification Number) or Volvo’s official service manual—this accounts for engine-specific belt configurations (e.g., manual vs. automatic transmission, 4-cylinder vs. 6-cylinder) and regional powertrain variations.
Frequently Asked Questions
Q: How to determine if the bumper bracket needs replacement?
A: Signs of a failing bumper bracket include visible damage or deformation, misaligned bumper panels, unusual noises from the front end, or if the bumper appears loose or sagging on one side.
Q: What should be paid attention to when replacing the bumper bracket?
A: For optimal results, we recommend professional installation. Key considerations include ensuring proper alignment of all mounting points, checking for additional damaged components, and verifying all fasteners are properly torqued to specification.
Why Choose Our Products
Extensive Industry Experience: 13 years specializing in Volvo auto parts with precise product matching and technical solutions.
Quality Assurance: 10-stage quality inspection process including durability testing, surface roughness analysis, and dimensional verification.
Manufacturing Excellence: 15,000㎡ production base with 10,000+ SKUs in inventory for fast order fulfillment.
Strategic Partnerships: Collaborations with 50+ factories including suppliers to international brands like Bosch and Hella.
Company Profile
Established in Guangzhou China, Womala Auto parts as a comprehensive company with five branches has engaged in Volvo parts for more than 10 years.There are hundreds of professional staff working in our supply department, sales and logistic support departments.Thanks to the deep coop... Company Profile
Established in Guangzhou China, Womala Auto parts as a comprehensive company with five branches has engaged in Volvo parts for more than 10 years.There are hundreds of professional staff working in our supply department, sales and logistic support departments.Thanks to the deep coop...
