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Product Details
The Honda OEM K-Series Main Stud Bolt is a genuine factory replacement designed for a wide range of Honda and Acura K20 and K24 engines. This essential engine fastener helps secure the crankshaft main bearing assembly to the engine block, providing the clamping force required for proper engine assembly and dependable operation.
Originally used in numerous Honda K-series engines, this genuine OEM bolt features an 11mm diameter and 95mm length, along with an integrated washer designed to distribute clamping force across the mounting surface.
The crankshaft main bearing assembly plays a critical role in engine reliability. Properly secured main bearing components help maintain crankshaft alignment and bearing support under normal engine operating conditions. Using the correct factory hardware is especially important during engine rebuilding, crankshaft replacement, or bottom-end service.
Manufactured to Honda's original equipment specifications, this genuine main stud bolt provides the correct factory dimensions and fastening characteristics for compatible engines.
Whether you're rebuilding an Acura RSX Type-S engine, refreshing a K24-powered Accord, or assembling a high-performance K20/K24 combination, this genuine Honda OEM main stud bolt is an excellent choice for maintaining factory-quality engine assembly.
Features
- Genuine Honda / Acura OEM Part: Authentic factory replacement manufactured to Honda's original equipment specifications.
- Factory Main Stud Bolt: Designed for the engine's crankshaft main bearing assembly.
- K-Series Engine Compatibility: Fits numerous Honda and Acura K20 and K24 engine applications.
- 11x95mm Dimensions: Factory-specified 11mm diameter and 95mm length.
- Integrated Washer: Features a factory washer for proper load distribution.
- OEM Clamping Characteristics: Designed for use with Honda's specified engine assembly procedures.
- Direct Factory Replacement: Replaces the original main stud bolt on compatible engines.
- Durable Steel Construction: Engineered for demanding internal engine operating conditions.
- Ideal for Engine Rebuilds: Suitable for crankshaft service, main bearing replacement, and complete engine assembly.
- Popular K-Series Application: Excellent for compatible OEM K20/K24 rebuilds and K-series engine swaps.
- OEM Part Number: 90006-PNA-003.
Additional Information
- Manufacturer: Honda / Acura
- Part Number: 90006-PNA-003
- OEM Description: Bolt-Washer (11x95)
- Other Names: Main Stud Bolt / Main Bearing Bolt / Crankshaft Main Bolt / K-Series Main Bolt / Engine Block Bolt
- Product Type: Engine Fastener / Bottom-End Hardware
- Installation Location: Engine Block – Crankshaft Main Bearing Assembly
- Application: Main Bearing Assembly Fastening
- Bolt Diameter: 11mm
- Bolt Length: 95mm
- Washer: Integrated
- Material: Steel
- Quantity: Sold Individually (1 Bolt)
- Catalog Required Quantity: 10 Bolts on Applicable Engine Configurations
Installation Notes
- Proper main bearing fastener installation is essential for maintaining crankshaft alignment, bearing clearance, and engine reliability.
- Before installation, inspect the engine block threads, main bearing assembly, and mounting surfaces for damage, contamination, or debris.
- When rebuilding an engine, confirm that the crankshaft, main bearings, and associated components are correctly positioned before installing the fasteners.
- Inspect the original bolts for signs of stretching, damaged threads, corrosion, or previous over-tightening. Replace damaged or out-of-specification hardware with the correct genuine Honda components.
- Install the new Honda OEM main stud bolts according to the factory service procedure for your specific engine.
- Honda engine main bearing fasteners may require a specific tightening sequence and torque-angle procedure. Always refer to the appropriate factory service manual for the correct specifications.
- Follow Honda's instructions for thread lubrication, washer preparation, and tightening sequence. Do not assume that cylinder head bolt torque specifications apply to main bearing fasteners.
- After tightening, verify crankshaft rotation and bearing clearances according to the engine's service specifications before completing engine assembly.
- For engines equipped with aftermarket main studs, modified main bearing assemblies, or performance engine blocks, follow the applicable hardware manufacturer's instructions.
Note:
- Includes one genuine Honda 11x95mm main stud bolt with integrated washer. Applicable engines may require 10 bolts for a complete set. Main bearings, additional bolts, crankshaft components, and other engine hardware are sold separately.
For Honda and Acura enthusiasts rebuilding a K-series engine, servicing the crankshaft assembly, or assembling a performance-oriented K20/K24 combination, this genuine Honda OEM Main Stud Bolt provides the factory-correct dimensions and fastening design needed for dependable engine assembly.
| Part Number: | 90006-PNA-003 |
| Brand: | Honda |
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 2002 | Acura | RSX | Base |
| 2002 | Acura | RSX | Type-S |
| 2002 | Honda | Civic | Si |
| 2003 | Acura | RSX | Base |
| 2003 | Acura | RSX | Type-S |
| 2003 | Honda | Civic | Si |
| 2004 | Acura | RSX | Base |
| 2004 | Acura | RSX | Type-S |
| 2004 | Acura | TSX | Base |
| 2004 | Honda | Civic | Si |
| 2005 | Acura | RSX | Base |
| 2005 | Acura | RSX | Type-S |
| 2005 | Acura | TSX | Base |
| 2005 | Honda | Civic | Si |
| 2006 | Acura | RSX | Base |
| 2006 | Acura | RSX | Type-S |
| 2006 | Acura | TSX | Base |
| 2006 | Honda | Civic | Si |
| 2007 | Acura | RDX | Base |
| 2007 | Acura | TSX | Base |
| 2007 | Honda | Civic | Si |
| 2008 | Acura | RDX | Base |
| 2008 | Acura | TSX | Base |
| 2008 | Honda | Civic | MUGEN Si |
| 2008 | Honda | Civic | Si |
| 2009 | Acura | RDX | Base |
| 2009 | Acura | TSX | Base |
| 2009 | Honda | Civic | Si |
| 2010 | Acura | RDX | Base |
| 2010 | Acura | RDX | SH-AWD |
| 2010 | Acura | TSX | Base |
| 2010 | Honda | Civic | Si |
| 2011 | Acura | RDX | Base |
| 2011 | Acura | RDX | SH-AWD |
| 2011 | Acura | TSX | Base |
| 2011 | Honda | Civic | Si |
| 2012 | Acura | RDX | Base |
| 2012 | Acura | RDX | SH-AWD |
| 2012 | Acura | TSX | Base |
| 2012 | Acura | TSX | Special Edition |
| 2012 | Honda | Civic | Si |
| 2013 | Acura | ILX | Base |
| 2013 | Acura | TSX | Base |
| 2013 | Acura | TSX | Special Edition |
| 2013 | Honda | Civic | Si |
| 2014 | Acura | ILX | Base |
| 2014 | Acura | TSX | Base |
| 2014 | Acura | TSX | Special Edition |
| 2014 | Honda | Civic | Si |
| 2015 | Acura | ILX | Base |
| 2015 | Acura | TLX | Base |
| 2015 | Honda | Civic | Si |
| 2016 | Acura | ILX | Base |
| 2016 | Acura | TLX | Base |
| 2016 | Honda | Civic | EX |
| 2016 | Honda | Civic | LX |
| 2017 | Acura | ILX | Base |
| 2017 | Acura | TLX | Base |
| 2017 | Honda | Civic | EX |
| 2017 | Honda | Civic | LX |
| 2017 | Honda | Civic | Touring |
| 2017 | Honda | Civic | Type R |
| 2018 | Acura | ILX | Base |
| 2018 | Acura | TLX | Base |
| 2018 | Honda | Civic | EX |
| 2018 | Honda | Civic | LX |
| 2018 | Honda | Civic | Touring |
| 2018 | Honda | Civic | Type R |
| 2019 | Acura | ILX | Base |
| 2019 | Acura | RDX | Base |
| 2019 | Acura | RDX | SH-AWD |
| 2019 | Acura | TLX | Base |
| 2019 | Honda | Civic | LX |
| 2019 | Honda | Civic | Sport |
| 2019 | Honda | Civic | Touring |
| 2019 | Honda | Civic | Type R |
| 2020 | Acura | ILX | Base |
| 2020 | Acura | RDX | Base |
| 2020 | Acura | RDX | SH-AWD |
| 2020 | Acura | TLX | Base |
| 2020 | Honda | Civic | LX |
| 2020 | Honda | Civic | Sport |
| 2020 | Honda | Civic | Touring |
| 2020 | Honda | Civic | Type R |
| 2021 | Acura | RDX | Base |
| 2021 | Acura | RDX | SH-AWD |
1 Reviews ★★★★★
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Jasmin Buric | March 31st, 2016
Awesome!
