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Product Details
The Honda OEM K-Series Limited-Slip Differential Ring Gear Bolt is a genuine factory replacement designed for compatible Honda and Acura manual transmissions equipped with a limited-slip differential (LSD). This specialized fastener secures the differential ring gear to the differential assembly, providing the clamping force necessary for reliable power transfer and drivetrain operation.
Featuring a factory-style shouldered design, this genuine Honda ring gear bolt is commonly used in K-series transmission builds involving OEM limited-slip differentials and compatible aftermarket LSD upgrades.
The differential ring gear is responsible for transferring power from the transmission's final drive to the differential, which distributes torque to the drive wheels. Because this assembly experiences substantial rotational forces and repeated changes in drivetrain load, using the correct mounting hardware is essential.
Unlike standard open-differential ring gear bolts, this shouldered bolt is designed for differential assemblies requiring its specific mounting configuration. Using the wrong bolt design can affect proper ring gear installation and compromise drivetrain reliability.
Manufactured to Honda's original equipment specifications, this genuine differential ring gear bolt provides factory-quality construction and fitment for compatible applications.
Whether you're upgrading an Acura RSX Type-S transmission with a limited-slip differential, rebuilding a Civic Si gearbox, or assembling a performance-oriented K-series drivetrain, this genuine Honda OEM LSD Ring Gear Bolt is an excellent choice for dependable differential mounting hardware.
Features
- Genuine Honda OEM Part: Authentic factory replacement manufactured to Honda's original equipment specifications.
- Factory Differential Ring Gear Bolt: Secures the ring gear to the differential assembly.
- 11mm Bolt Diameter: Features Honda's factory-specified 11mm fastener design.
- Shouldered Bolt Construction: Designed for differential assemblies requiring shouldered ring gear mounting hardware.
- Limited-Slip Differential Compatibility: Suitable for select factory and aftermarket LSD applications.
- K-Series Transmission Applications: Used in compatible Honda and Acura manual transmission configurations.
- OEM Clamping Characteristics: Designed for use with the appropriate factory installation procedure.
- Direct Factory Replacement: Replaces the original shouldered ring gear bolt in compatible applications.
- Durable Steel Construction: Engineered for demanding internal transmission operating conditions.
- Ideal for LSD Upgrades: Excellent for compatible aftermarket differential installations.
- Transmission Rebuild Friendly: Suitable for final drive replacement and differential service.
- OEM Part Number: 90017-PYZ-000.
Additional Information
- Manufacturer: Honda / Acura
- Part Number: 90017-PYZ-000
- OEM Description: Bolt, Special (11mm)
- Other Names: LSD Ring Gear Bolt / Differential Ring Gear Bolt / Shouldered Differential Bolt / Final Drive Ring Gear Bolt / K-Series LSD Bolt
- Product Type: Manual Transmission / Differential Hardware
- Installation Location: Inside Manual Transmission – Differential Ring Gear
- Application: Ring Gear to Differential Mounting
- Bolt Diameter: 11mm
- Bolt Design: Shouldered
- Material: Steel
- Quantity: Sold Individually (1 Bolt)
- Typical Required Quantity: 10 Bolts for a Complete Differential Ring Gear Installation
- Open Differential vs. Limited-Slip Differential Ring Gear Bolts
- Honda uses different differential ring gear bolt designs depending on the differential assembly.
- Honda 90017-PYZ-000 – Shouldered Ring Gear Bolt
- Designed for compatible limited-slip differential applications
- Features a shouldered mounting design
- Commonly used in select OEM and aftermarket LSD installations
- 11mm factory fastener
- Honda 90017-PPP-000 – Non-Shouldered Ring Gear Bolt
- Designed for compatible factory-style open differential applications
- Features a non-shouldered mounting design
- Used in select Honda and Acura manual transmissions
- 11mm factory fastener
- These bolts should not be considered interchangeable without confirming the specific differential manufacturer's requirements.
- When converting from an open differential to an LSD, the correct ring gear bolts must be selected based on the replacement differential's mounting design.
When Should Differential Ring Gear Bolts Be Replaced?
- Differential ring gear bolts should be inspected whenever the differential or final drive assembly is disassembled.
- Common reasons for replacement include:
- Limited-slip differential installation
- Manual transmission rebuilding
- Ring gear or final drive replacement
- Differential replacement
- Damaged or worn bolt threads
- Previous improper tightening
- Differential upgrades for racing or performance use
- Installation of compatible aftermarket drivetrain components
- Replacing questionable or previously stressed hardware can help maintain reliable ring gear mounting during demanding drivetrain operation.
Installation Notes
- Proper ring gear bolt installation is critical for transmission reliability and drivetrain safety.
- Before installation, inspect the differential mounting flange, ring gear mounting surfaces, and threaded holes for damage, contamination, or debris.
- Confirm that the replacement differential requires shouldered ring gear bolts and that Honda part number 90017-PYZ-000 matches the manufacturer's specified hardware.
- Position the ring gear correctly against the differential mounting flange and align all mounting holes.
- Install the new Honda OEM bolts by hand initially to prevent cross-threading.
- Tighten the bolts gradually in the sequence specified by the applicable factory service manual or differential manufacturer.
- Always follow the correct torque specifications, tightening sequence, and thread preparation requirements for your specific differential assembly.
- Use a calibrated torque wrench and the appropriate holding fixtures during installation.
- If the differential manufacturer specifies a particular thread-locking compound, lubricant, or bolt replacement procedure, follow those instructions.
- Do not substitute non-shouldered bolts for shouldered bolts unless the differential manufacturer explicitly approves the substitution.
- After assembly, verify proper ring gear seating, differential operation, and final drive clearances before completing transmission installation.
Note:
- Includes one genuine Honda 11mm shouldered differential ring gear bolt. Ten bolts are typically required for a complete ring gear installation on applicable differentials. The differential, ring gear, bearings, seals, and additional transmission components are sold separately.
For Honda and Acura enthusiasts upgrading to a limited-slip differential, rebuilding a K-series manual transmission, or assembling a performance-oriented drivetrain, this genuine Honda OEM LSD Ring Gear Bolt provides factory-quality mounting hardware for a secure and dependable differential installation.
| Part Number: | 90017-PYZ-000 |
| 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 |
|---|---|---|---|
| 2003 | Acura | CL | Type-S |
| 2003 | Honda | Accord | EX |
| 2004 | Acura | TL | Base |
| 2004 | Honda | Accord | EX |
| 2005 | Acura | TL | Base |
| 2005 | Honda | Accord | EX |
| 2006 | Acura | TL | Base |
| 2006 | Honda | Accord | EX |
| 2006 | Honda | Civic | Si |
| 2007 | Acura | TL | Type-S |
| 2007 | Honda | Accord | EX |
| 2007 | Honda | Civic | Si |
| 2008 | Acura | TL | Type-S |
| 2008 | Honda | Civic | MUGEN Si |
| 2008 | Honda | Civic | Si |
| 2009 | Honda | Civic | Si |
| 2010 | Honda | Civic | Si |
| 2011 | Honda | Civic | Si |
| 2012 | Honda | Civic | Si |
| 2013 | Honda | Civic | Si |
| 2014 | Acura | RLX | Sport Hybrid SH-AWD |
| 2014 | Honda | Civic | Si |
| 2015 | Honda | Civic | Si |
| 2016 | Acura | RLX | Sport Hybrid SH-AWD |
| 2017 | Acura | MDX | Sport Hybrid |
| 2017 | Acura | RLX | Sport Hybrid SH-AWD |
| 2018 | Acura | MDX | Sport Hybrid |
| 2018 | Acura | RLX | Sport Hybrid SH-AWD |
| 2018 | Honda | Accord | Sport |
| 2019 | Acura | MDX | Sport Hybrid |
| 2019 | Acura | RLX | Sport Hybrid SH-AWD |
| 2019 | Honda | Accord | Sport |
| 2020 | Acura | MDX | Sport Hybrid |
| 2020 | Acura | RLX | Sport Hybrid SH-AWD |
| 2020 | Honda | Accord | Sport |
1 Reviews ★★★★★
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Kevin | April 24th, 2023
I’m rebuilding my transmission and I upgraded my 02 RSX Type S differential to a J’s Racing LSD. I read on forums people used these bolts due to being longer than stock. Much cheaper than buying them from the dealership.
