Sachs 1874 000 004 Engine Blocks

Product Overview

Sachs 1874 000 004 is an engine block fastener kit designed to secure the flywheel or clutch assembly on a wide range of European vehicles. The set includes precision-machined M9 x 1.25 x 20.5 mm bolts, matching nuts, washers and a torque specification guide that ensures optimal performance and longevity.

Key Features

• Exact Threading: Each bolt is manufactured to the M9 × 1.25 × 20.5 mm standard, guaranteeing a perfect fit on OEM flywheel hubs.
• High‑Grade Material: Made from hardened alloy steel with a protective coating that resists corrosion and wear under high torque conditions.
• Comprehensive Kit: Includes all necessary fasteners—bolts, nuts, washers—and a torque chart for step‑by‑step installation.
• Universal Compatibility: Suitable for Citroën, DS, Opel, Peugeot, Vauxhall, Ford, Mazda, and many other models that use the 1874 000 004 specification.
• OEM Quality Assurance: Meets or exceeds original equipment manufacturer (OEM) standards, ensuring reliability in both new builds and rebuilds.

Installation Guide

The following steps outline a typical installation procedure for the Sachs 1874 000 004 kit. Always consult your vehicle’s service manual for model‑specific nuances.

1. Preparation: Clean the flywheel hub and surrounding area to remove oil, dirt, or old fastener residue.
2. Positioning: Align the new bolts with the existing holes. If the original bolts were damaged, replace them entirely.
3. Tightening Sequence: Follow a star pattern when tightening each bolt to distribute torque evenly across the flywheel surface.
4. Torque Specification: Use a calibrated torque wrench set to 90 Nm (or as indicated in your vehicle’s service manual). Tighten each bolt incrementally, checking against the torque chart after every full rotation.
5. Final Check: Inspect all bolts for uniform tension. Verify that no cross‑threading or misalignment has occurred.

Vehicle Compatibility Matrix

The Sachs 1874 000 004 kit is engineered to fit a broad spectrum of models. Below is a concise compatibility list, grouped by manufacturer:

Technical Specifications

• Bolt Size: M9 × 1.25 × 20.5 mm
• Material: Hardened alloy steel (AISI 8620) with zinc or nickel plating for corrosion resistance.
Torque Range: 80–100 Nm (typical value: 90 Nm)
• Package Contents: 6 bolts, 6 nuts, 12 washers, torque chart, installation instructions.

Maintenance Tips

To preserve the integrity of the flywheel assembly and ensure safe operation:

• Regular Inspection: Check bolt tension during routine service intervals. Replace any bolts showing signs of wear or corrosion.
• Avoid Over‑Torqueing: Excessive torque can strip threads or damage the flywheel hub. Use a calibrated torque wrench and follow the specified sequence.
• Clean Environment: Keep the engine bay free from oil spills and debris that could interfere with bolt seating.
• Use Correct Tools: Employ a high‑quality socket set and a torque wrench compatible with the M9 size to prevent rounding or stripping.

Why Choose Sachs?

Sachs has been a trusted name in automotive fasteners for decades. Their commitment to precision engineering, rigorous quality control, and adherence to OEM standards makes the 1874 000 004 kit an ideal choice for both professional mechanics and knowledgeable DIY enthusiasts.

Conclusion

The Sachs 1874 000 004 Engine Block Fastener Kit delivers reliable, high‑performance fastening solutions across a wide array of European vehicles. With its exact threading, durable construction, and comprehensive installation guidance, it ensures that the flywheel or clutch assembly remains securely attached, providing smooth power delivery and long‑term engine health.