Belt Tensioner Assembly with Pulley, Compatible with 2007-2011 Honda Civic 1.8L L4 Gas & CNG, Replaces OE# 31170-RWK-025, 31170RWK005, 31170RWK015

Compatible with 2007-2011 Honda Civic 1.8L L4 Gas & CNG sedan and coupe models (DX, EX, EX-L, GX, LX, LX-S). This belt tensioner assembly is a direct OE replacement for factory part numbers 31170-RWK-025, 31170RWK005, 31170RWK015, fully matching original factory specifications, size and mounting position for perfect plug-and-play fitment. Manufactured with high-strength cast iron arm, premium anti-corrosion surface treatment and sealed pre-greased low-friction bearings, this serpentine belt tensioner effectively maintains stable and consistent belt tension during all engine operating conditions. It eliminates common failure symptoms including belt slipping, abnormal squealing noise, weak air conditioning, poor power steering response and engine overheating caused by worn or failed original tensioners. Built with OE-level durability and precision structure, this tensioner assembly greatly improves the stability of the alternator, water pump and full accessory drive system. It is rigorously tested to withstand high-mileage driving, frequent start-stop cycles and extreme temperature changes, ensuring long service life and reliable daily performance. Complete pre-assembled design allows fast and convenient installation. No extra shims, adapters or modifications are required. Installation can be finished in approximately 30 minutes with ordinary hand tools. Zero regular lubrication or tension adjustment is needed after installation, greatly reducing your post-maintenance cost. Ideal for DIY replacement and professional garage repair, this tensioner offers factory-matched performance at an affordable price, restoring your Honda Civic’s smooth and quiet engine drive system.

• Precision Fit, Restores Factory Performance:Direct OEM replacement matching part number 31170-RWK-025, cross-references 31170RWK005 & 31170RWK015. Compatible with 2007-2011 Honda Civic 1.8L L4 Gas & CNG models, including DX, EX, EX-L, GX, LX, LX-S sedan and coupe trims. OE standard design for plug-and-play installation, delivers stable belt tension to prevent slipping and premature wear.
• Noise Reduction & Optimized Drive Efficiency:Defective tensioners trigger squealing noise, weak AC, power steering malfunction and engine overheating. This tensioner maintains constant serpentine belt tension under varying loads, ensures stable operation of alternator and water pump to avoid common accessory drive failures.
• Ideal for DIY Repair & Daily Commute Vehicles:Suitable for home DIY maintenance and professional garage use, greatly shortening replacement time. Durable enough for high-mileage cars with frequent start-stop driving and extreme temperature changes, perfect for routine and emergency repairs.
• OE-Level Toughness & Long Service Life:Made of high-strength cast arm with anti-corrosion coating and sealed pre-greased bearings. Low-friction bearings reduce operational wear, robust structure improves service life; no extra shims or adapters needed during installation.
• Simple Installation, Maintenance-Free After Mounting:Complete assembly can be installed in roughly 30 minutes with basic hand tools. No regular lubrication or tension adjustment required after installation, zero follow-up maintenance.