04260929 Set of Pist. Rings for Deutz BFM1015/TCG2015 Replace No. 04225599

eutz 04260929 Piston Ring Set

Replacement for: 04225599 (superseded part)
Compatible Engines:

• BFM1015 (6-cylinder industrial/marine)

• TCG2015 (turbocharged gas variants)

Technical Specifications

1. Set Contents

• Top Compression Ring: Plasma-coated, barrel-faced

• Second Ring: Tapered/scraper design

• Oil Control Rings: 3-piece design (2 rails + expander)

• Quantity: Full set for 1 cylinder (order 6 sets for complete engine)

2. Material & Coatings

3. Critical Dimensions

• Diameter: 101.5 mm (nominal)

• Radial Thickness: 3.0 mm (all rings)

• End Gap (installed):

  • Top: 0.40–0.60 mm

  • Second: 0.35–0.55 mm

  • Oil: 0.25–0.45 mm

Key Features

✔ Reduced Friction: Optimized profiles for lower oil consumption
✔ Extended Life: Hardened coatings resist bore polishing
✔ Gas Sealing: Improved torsional twist design

Compatibility Notes

• Fits Both: Standard and oversize pistons (marking “OS” for oversize)

• Not Compatible With: Earlier BFM1013 engines

Installation Guide

1. Preparation:

   • Deglaze cylinder walls (RA 0.5–1.0 μm finish)

   • Clean ring grooves thoroughly

2. Staggering:

   • Offset ring gaps 120° apart

   • Avoid aligning gaps with piston pin

3. Torque Values:

   • Connecting rod bolts: 100 Nm + 90° turn

   • Cylinder head: 180 Nm (in sequence)

Warning

⚠ Critical Checks:

• Verify ring-to-groove clearance (max 0.10 mm)

• Never install rings on damaged pistons

• Use Deutz-approved assembly lube

Replaces Obsolete Parts

• 04225599 (previous design)

Cross-Reference