2.89 EUR
Elring 690.290 Connecting Rod Bolt
Length [mm]: 45Thread Pitch [mm]: 1Thread Size: M 8
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Elring 690.290 Connecting Rod Bolt
The Elring 690.290 Connecting Rod Bolt is a high‑performance fastener designed for the critical connection between the connecting rod and the crankshaft in internal combustion engines. Manufactured by Elring, a renowned supplier of automotive components, this bolt delivers exceptional strength, durability, and reliability under extreme operating conditions.
Key Features
- M8 thread size – precise metric threading for secure engagement.
- High‑strength alloy steel construction – engineered to withstand high torque and vibration.
- Heat treatment & surface finish – ensures corrosion resistance and extended service life.
- Exact dimensional tolerances – guarantees a perfect fit with OEM crankshaft and connecting rod assemblies.
- Compatibility with major European brands – suitable for Audi, VW, Ford, Seat, Skoda, and other manufacturers’ engines.
Technical Specifications
| Parameter | Value |
|---|---|
| Thread size | M8 x 1.25 mm |
| Length (overall) | ≈ 30–35 mm (varies by application) |
| Material | Alloy steel (e.g., AISI 8620 or equivalent) |
| Heat treatment | Case hardening with tempering |
| Surface finish | Hot dip galvanizing / zinc coating |
| Torque specification | ≈ 80–120 Nm (depending on engine design) |
| Operating temperature range | -40°C to +200°C |
Applications and Engine Compatibility
The bolt is engineered for use in a wide array of engines, including:
- Volkswagen & Audi inline‑4 and V6 engines (e.g., 1.9 TDI, 2.0 I4)
- Ford EcoBoost and Power Stroke diesel units
- Seat and Skoda models sharing VW/Audi platforms
- Commercial vehicles such as the Volkswagen Transporter IV and Ford Transit
- High‑performance variants like Audi Cupra, Ford Mustang, and others requiring robust connecting rod attachments
Installation Guidelines
- Preparation: Clean the crankshaft journal and connecting rod threads. Inspect for wear or damage.
- Threading: Use a calibrated torque wrench to apply the specified torque in a cross‑pattern sequence (e.g., 1–2–3–4). This ensures even load distribution.
- Tightening Sequence: Start with a low torque setting, then progressively increase until reaching the final value. Avoid over‑tightening to prevent thread galling.
- Sealing: Apply a high‑temperature anti‑seize compound if recommended by the engine manufacturer.
- Verification: After installation, perform a vibration test and check for any abnormal noise or play in the crankshaft assembly.
Maintenance Tips
- Regularly inspect bolts during scheduled engine overhauls.
- Avoid using damaged or deformed bolts; replace immediately to prevent catastrophic failure.
- Store spare bolts in a dry environment to preserve the protective coating.
Why Choose Elring 690.290?
The Elring 690.290 Connecting Rod Bolt offers:
- Reliability: Proven track record in OEM and aftermarket applications.
- Precision Engineering: Tight tolerances reduce wear and extend engine life.
- Versatility: Compatible with a broad spectrum of engines across multiple brands.
- Quality Assurance: Manufactured under strict quality control processes, ensuring consistent performance.
Conclusion
The Elring 690.290 Connecting Rod Bolt is an essential component for any engine requiring a robust and reliable connection between the connecting rod and crankshaft. Its high‑strength construction, precise threading, and compatibility with major European automotive platforms make it the preferred choice for both OEMs and performance enthusiasts alike.
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| Identifiers | |
| Brand | ![]() Elring is a German automotive parts manufacturer that produces gaskets, seals, and other components for the automotive industry. The company has a long history dating back to the early 1900s, and today is a leading supplier of parts to the automotive market. Elring products are known for their quality and durability, and the company has a reputation for innovation and technological leadership. |
| Model | Elring 690.290 |
| MPN | Elring 690.290 |
| ID | 8291881 |
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| Key Features | |

