OEM Engine Timing Guide Replacement 11317533479 For BMW F10 F30 F35 F48 B38

BMW N20 N55 B38 B48 Engine Timing Guide 11317533479 For F10 F30 F35 F48 BMW Model

1. Product Overview

    The 11317533479 Engine Timing Guide is a critical OEM-equivalent component designed for BMW's N-series and B-series engines. It ensures precise alignment and tension control of the timing chain, reducing wear and preventing catastrophic engine failure.

Key Applications:

• Timing chain noise reduction

• Prevention of chain slippage/timing jumps

• Extended engine lifespan

2. Compatibility Chart (Selection Guide)

3. Core Functions

• Chain Guidance: Maintains optimal routing for timing chains.

• Vibration Damping: Absorbs harmonic oscillations from camshaft/crank movements.

• Wear Protection: Low-friction surface reduces chain and sprocket abrasion.

• Fail-Safe Design: Integrated wear indicators for maintenance predictability.

4. Working Principle

1. The guide rail is mounted adjacent to the timing chain.

2. Its curved profile directs the chain along the precise path between crankshaft and camshaft sprockets.

3. Engine oil lubrication reduces friction between chain and guide contact surfaces.

4. Wear-resistant material ensures dimensional stability under thermal cycling.

5. Installation Notes

Critical Steps:

1. Pre-Installation:

   • Verify chain stretch (<1% elongation) before guide replacement.

   • Clean oil passages to ensure lubrication.

2. Torque Specifications:

   • Guide mounting bolts: 8 Nm + 90° turn (angle torque).

3. Post-Installation:

   • Rotate crankshaft 2 full cycles manually to check for binding.

   • Use BMW ISTA for timing verification.

Prohibited Actions:

• Do not reuse stretched chains or worn tensioners.
• Avoid silicone-based lubricants (use engine oil only).

6. FAQs

Q1: How does your guide differ from OEM?

A: Our version uses upgraded BASF Ultramid® A3WG10 material (20% higher fatigue resistance) while retaining OEM dimensions.

Q2: Minimum order quantity (MOQ)?

A:Wholesale: 50 pieces (custom packaging available)

Q3: Lead time for bulk orders?

A: 5–15days for 1,000+ units (in-stock for orders <500 units).

7. Why Choose Us?

• Tooling Investment: 5-axis CNC molds ensure ±0.01mm precision.

• Testing Capability: 500-hour dyno simulations on actual BMW engines.

• Logistics:DDP support for EU/US buyers.