High-selling tension guide rail 11317533462 for BMW 7 Series [E66 (750Li)]

Core Selling Points

Fast-turnover timing wearable part for combined one-stop purchasing

100% OE identical precision dimension, direct bolt-on installation without modification

Applicable Vehicle & Engine Scope

Matched Core Engine

Main Applicable Model

Extended Compatible BMW Models

Installation Position: Right Bank (Cylinders 1-4) Timing Chain Tension Guide Rail

Reinforced Durable Structural Design

1. High-strength reinforced PA66 nylon main bracket: Added glass fiber for reinforcement, anti-deformation, anti-cracking, resistant to long-term high-temperature engine oil erosion
2. Imported ultra-wear-resistant PTFE sliding lining: Low friction coefficient, wear resistance far superior to ordinary plastic materials, effectively reduce timing chain running noise, prolong service life
3. Integrated injection molding overall structure: No degumming or peeling between bracket and sliding layer under long-term reciprocating tension
4. Standard reserved mounting holes, firm fixation after tightening bolts, no shaking or displacement caused by engine vibration
5. Complete finished product without extra accessories needed, ready for direct assembly

Stabilize Timing System & Thoroughly Protect V8 Engine

1. Cooperate with hydraulic timing tensioner to continuously apply moderate tension to the timing chain, prevent chain loosening, jumping teeth and falling off
2. Limit the running track of the timing chain, reduce swing and friction noise during operation, eliminate abnormal engine rattling sound
3. Guarantee accurate valve opening/closing timing, stabilize idle speed, restore original power output and fuel economy
4. Avoid severe engine collision damage caused by timing failure, greatly reduce major overhaul risks

Fully Resolve Typical Guide Rail Failure Faults

• Obvious rattling, humming abnormal noise from engine front timing cover
• Engine idle rough, periodic jitter during acceleration
• Vehicle power attenuation, climbing and overtaking powerless
• Fuel consumption rises significantly, exhaust emission deteriorates
• Timing chain elongation accelerated, frequent timing fault codes triggered
• Hidden danger of chain jumping teeth leading to engine permanent damage