One-stop Purchase Timing Chain Left Lower Guide Rail 11317533489 for BMW 7 Series E66 740Li (N62 Engine)

Core Selling Points

Hot-selling timing vulnerable part suitable for combined one-stop ordering

100% OE precise dimensional replication, direct bolt-on installation without any modification

Applicable Vehicle & Engine Range

• Matched Engine: BMW N62 4.4L / 4.8L V8 gasoline engine
• Main Applicable Model: BMW 7 Series E66 740Li (Long wheelbase version)
• Extended Compatible Models: BMW E65/E66 745Li/750Li, E60 545i/550i, E63/E64 645Ci/650i, X5 E53/E70 4.4i/4.8i and all vehicles equipped with N62 series V8 engines
• Installation Position: Left bank lower timing chain tension guide rail (for cylinders 5 to 8)

Reinforced Durable Structural Design

1. Glass fiber reinforced PA66 nylon bracket main body: High rigidity, anti-deformation & anti-cracking, resistant to long-term high-temperature engine oil corrosion
2. Imported PTFE wear-resistant sliding lining: Ultra-low friction coefficient, wear resistance far exceeds ordinary plastic materials, effectively reduce chain running noise and extend service life
3. Integrated injection molding process: The bracket and sliding layer will not delaminate or peel under long-term reciprocating tension
4. Standard reserved bolt holes: Firmly fixed after tightening, no displacement caused by engine vibration
5. Pre-assembled finished product, ready for direct assembly without extra accessories

Stabilize Timing System & Effectively Protect V8 Engine

1. Cooperate with hydraulic tensioner to apply lasting moderate tension to timing chain, prevent chain loosening, tooth jumping and falling off
2. Limit the running track of timing chain, reduce swing amplitude and eliminate abnormal rattling noise during engine operation
3. Maintain accurate valve opening and closing timing, stabilize idle speed, restore original power output and fuel economy
4. Avoid major engine collision damage caused by timing failure, drastically cut the risk of expensive full engine overhaul

Completely Solve Common Failure Symptoms of Timing Guide Rail

• Continuous humming/rattling noise emitted from engine front timing cover
• Rough engine idle, obvious jitter during acceleration
• Vehicle power attenuation, insufficient power for climbing and overtaking
• Fuel consumption rises sharply, exhaust emission deteriorates
• Timing chain elongation speeds up, vehicle triggers timing system fault codes frequently
• Hidden danger of chain tooth jumping leading to permanent engine damage

Rigorous Multi-stage Factory Testing & Ample Spot Inventory