NRF Thermostat 725399

Compatible with AUDI A4 B9 (8W2, 8WC) , AUDI A4 B9 Avant (8W5, 8WD) , AUDI A5 (F53, F5P) Show more info
NRF Thermostat 725399 is a crucial component for regulating engine temperature. Ensures optimal performance and prevents overheating.
41.81 EUR
inc. VAT 21%
In stock 3
Delivery 1 day (15.05.2026)
PN 725399
Make NRF
EAN 8718042412942

The NRF Thermostat 725399 is designed to precisely control the flow of coolant within your vehicle's engine. By opening and closing at specific temperatures, it maintains the engine within its optimal operating range, which is essential for fuel efficiency and longevity. Proper functioning of the thermostat prevents both overheating and overcooling. Overheating can lead to severe engine damage, while overcooling can reduce performance and increase emissions. This NRF thermostat provides reliable and consistent temperature regulation. Crafted with quality materials, the NRF Thermostat 725399 is built to withstand the demanding conditions of the engine bay. Its robust construction ensures durability and a long service life, offering peace of mind for drivers.

  • Regulates engine coolant temperature
  • Ensures optimal engine performance
  • Prevents overheating and overcooling
  • Durable construction for long service life
  • Designed for precise temperature control
  • Essential for fuel efficiency and emissions control
  • High-quality materials for reliability
Opening temperature
103
Housing type
with housing
Additional article/Additional info 2
with sealing ring
  • AUDI
    • A4 B9 (8W2, 8WC)
      • S4 TFSi quattro (260kW/354PS)
    • A4 B9 Avant (8W5, 8WD)
      • S4 quattro (260kW/354PS)
      • RS4 quattro (331kW/450PS)
    • A5 (F53, F5P)
      • S5 quattro (260kW/354PS)
      • RS5 quattro (331kW/450PS)
    • A5 Sportback (F5A, F5F)
      • S5 quattro (260kW/354PS)
      • RS5 quattro (331kW/450PS)
    • A5 Kabriolets (F57, F5E)
      • S5 quattro (260kW/354PS)
    • Q5 (FYB, FYG)
      • SQ5 TFSI quattro (260kW/354PS)
    • A8 D5 (4N2, 4N8, 4NC, 4NL)
      • 55 TFSI Mild Hybrid quattro (250kW/340PS)
      • 50 TFSI Mild Hybrid quattro (4N8) (210kW/286PS)
    • A7 Sportback (4KA)
      • 55 TFSI Mild Hybrid quattro (250kW/340PS)
    • Q8 (4MN, 4MT)
      • 55 TFSI Mild Hybrid quattro (250kW/340PS)
    • A6 C8 (4A2)
      • 55 TFSi Mild Hybrid quattro (250kW/340PS)
    • A6 C8 Avant (4A5)
      • 55 TFSI Mild Hybrid quattro (250kW/340PS)
    • Q7 (4MB, 4MG, 4MQ)
      • 55 TFSI Mild Hybrid quattro (250kW/340PS)
      • 55 TFSI e quattro (280kW/381PS)
      • 60 TFSI e quattro (335kW/455PS)
    • A6 Allroad C8 (4AH)
      • 55 TFSI Mild Hybrid quattro (250kW/340PS)
  • PORSCHE
    • CAYENNE (9YA)
      • 3.0 AWD (9YAAA1) (250kW/340PS)
      • 2.9 S AWD (9YABB1) (324kW/440PS)
    • CAYENNE Coupe (9YB)
      • 3.0 AWD (9YBAA1) (250kW/340PS)
      • 2.9 S AWD (9YBBB1) (324kW/440PS)
    • MACAN (95B)
      • 2.9 Turbo AWD (95BCI1) (324kW/440PS)
      • 2.9 GTS (95BBL1) (280kW/380PS)
      • 2.9 S (95BBV1) (280kW/380PS)
      • 2.9 GTS AWD (95BBW1) (324kW/440PS)
  • VW
    • TOUAREG (CR7, RC8)
      • 3.0 TSI 4motion (250kW/340PS)
      • 3.0 eHybrid 4motion (280kW/381PS)
  • BENTLEY
    • BENTAYGA (4V1)
      • 3.0 Hybrid (330kW/449PS)
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