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MAHLE Piston: Precision fit for 84.01 mm cylinder bores

Mahle Original 028 03 00 Piston
4.5
[Precision Dimensions]  Exact measurements (length 61.48mm, bolt Ø 20.0mm) for consistent fit and manufacturing accuracy.
[Durable Bolt Design]  57.0mm bolt length with 20.0mm diameter ensures secure fastening and long-term reliability.
[Optimized Compression Height]  34.65mm compression height tuned for improved combustion efficiency and engine performance.
[Trapezoidal Connecting Rod]  Unique trapezoidal design enhances stability and reduces reciprocating stress under load.
[Accurate Recess & Bore]  Recess Ø64.0mm, depth 1.85mm and cylinder bore 84.01mm for precise sealing and compatibility.
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Automotive piston designed to match specified engine dimensions for reliable fit and alignment. Reliable assembly reduces surprise clearance issues for mechanics and home rebuilders who need predictable results. Is MAHLE Piston the right choice for your rebuild project?

⚡ At a Glance
  • Fit Precision: Dimensions correspond to listed cylinder bore and compression height for accurate assembly
  • Best for: Engine rebuilds and component replacement where exact dimensional matching is required
  • Not ideal for: Projects requiring bespoke piston geometries or non-standard custom shapes

Piston specified for an 84.01 mm cylinder bore with a 34.65 mm compression height. Bolt and connecting rod dimensions are provided to assist correct fitment.


Accurate assembly - with specified cylinder bore and compression height

Cylinder Bore 84.01 mm and Compression Height 34.65 mm define radial and axial placement during assembly, guiding piston top dead centre and ring location relative to the block.

Consistent dimensional references reduce the risk of clearance errors and support reliable engine rebuild outcomes.

Secure fastening - with 57.0 mm bolt length and 20.0 mm bolt diameter

Bolt length 57.0 mm combined with Bolt Ø 20.0 mm determines clamping reach and engagement depth at the connecting rod interface.

Correct bolt sizing helps achieve stable rod-to-piston connection and reduces the chance of loosening under operational load.

Designed for matching rod geometry - with trapezoidal connecting rod design

Connecting Rod Design is listed as Trapezoidal Connecting Rod, with component references included to aid correct pairing during installation.

Suitable where trapezoidal rod layouts are used, helping to avoid geometry mismatch during replacement.

✨ The 4 Key Reasons for MAHLE Piston
  1. Recess Diameter 64.0 mm - Ensures correct seating for gasket or piston crown clearance
  2. Recess Depth 1.85 mm - Allows precise accommodation of valve reliefs and ring end gaps
  3. Overall Length 61.48 mm - Matches shaft and assembly dimensions for straightforward installation
  4. Production Number 84L88 - Traceable part identity for workshop records and ordering
📋 Technical Details at a Glance
  • Category: Automotive Parts and Accessories
  • Brand: MAHLE
  • Product ID: B00FAHCTCA
  • Bolt length: 57.0 mm
  • Bolt diameter: 20.0 mm
❓ Frequently Asked Questions

Q: What bolt dimensions are specified for fastening?

A: Bolt length is 57.0 mm and bolt diameter is 20.0 mm as listed in the product details.

Q: Which cylinder bore and compression height does the part match?

A: Cylinder Bore is 84.01 mm and Compression Height is 34.65 mm according to the specification.

Q: Is the part intended for trapezoidal connecting rod layouts?

A: Connecting Rod Design is recorded as Trapezoidal Connecting Rod, indicating intended use with that geometry.

🏆 Our Verdict

Suitable for mechanics and workshops that require clear dimensional data when replacing pistons. Explicit bore, compression height and bolt dimensions make fitment decisions straightforward. Correct matching of specifications supports long-term reliability and reduces the likelihood of repeat work when installed properly.