HomeBrake > Brake HydraulicsNugeon 99P01631B Disc Brake Caliper - Rear Left
Part #: 99P01631B

Nugeon 99P01631B Disc Brake Caliper - Rear Left

TechShield 360 (tm), Rear Left
5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
TechShield 360 (tm), Rear Left
Fitment: Lexus, RX300
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Reliable Disc Brake Caliper for Lexus RX300

The Nugeon TechShield 360 (tm) Disc Brake Caliper (Part Number 99P01631B) is engineered to provide consistent braking performance for your Lexus RX300. Designed with durable materials and precise specifications, this caliper ensures dependable stopping power and long-lasting service.

  • Compatible with Lexus RX300 models
  • Constructed from cast iron for strength and durability
  • Includes mounting hardware, bleeder screw, and caliper slides
  • Equipped with a single steel piston (40 mm diameter)
  • Features a gray E-coat finish for corrosion resistance
  • Includes bracket with Aisin casting number 1702809
  • Banjo bolt inlet fitting with M10-1.0 thread size
  • Bleeder screw with M7-1.0 thread and cap included
  • Dust boots included to protect internal components

About the TechShield 360 (tm) Product Line

The TechShield 360 (tm) line by Nugeon focuses on delivering brake hydraulics components that combine robust materials and protective finishes. This disc brake caliper benefits from the TechShield 360 (tm) technology, which includes an E-coat finish to resist corrosion and extend the caliper's operational life, making it suitable for demanding driving conditions.

Detailed Product Description

This disc brake caliper is manufactured with a cast iron housing and a single steel piston measuring 40 mm in diameter, providing reliable hydraulic pressure for effective braking. The gray E-coat finish offers enhanced protection against rust and environmental wear. Included components such as the bleeder screw (M7-1.0 thread) with cap, caliper slides, and dust boots ensure proper function and ease of maintenance. The caliper bracket, cast with Aisin number 1702809, is included to facilitate secure mounting. The inlet fitting uses a banjo bolt with an M10-1.0 thread size, compatible with standard brake lines for the Lexus RX300.

Common Applications and Issues Addressed

  • Replacement for worn or damaged disc brake calipers on Lexus RX300
  • Resolves brake fluid leakage due to faulty bleeder screws or seals
  • Addresses uneven brake pad wear caused by sticking caliper slides
  • Improves braking response when original caliper piston is corroded or seized
  • Prevents corrosion-related failures with E-coat finish protection

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air from the hydraulic lines. Verify that the bleeder screw and cap are securely installed to prevent fluid leaks. Use the included bracket for correct caliper positioning and torque mounting bolts to manufacturer specifications. Inspect dust boots and caliper slides for proper fit to maintain smooth piston operation.

Quality Assurance and Warranty

This Nugeon TechShield 360 (tm) disc brake caliper is manufactured by Aisin, a reputable OEM supplier known for quality automotive components. The caliper undergoes strict quality control to meet industry standards. While specific warranty details are not provided, products from this line typically carry coverage against manufacturing defects. Consult your supplier for exact warranty terms.

BrandNugeon
Part Number99P01631B
PositionTechShield 360 (tm), Rear Left
Mounting Hardware IncludedYes
Pads IncludedNo
Caliper Casting MaterialCast iron
Bleeder Screw IncludedYes
Caliper Slides IncludedYes
Piston Quantity1
Friction Materials Standards Institute Pad NumberD325
Inlet Fitting TypeBanjo bolt
Caliper ColorGray
Piston MaterialSteel
Anti-Squeal Shims IncludedNo
Bleeder Screw Cap IncludedYes
Bleeder Screw SizeM7-1.0
Bleeder Screw Thread (mm)M7-1.0
Bleeder Thread SizeM7-1.0
Bracket Cast NumbersAisin 1702809
Bracket IncludedYes
Bracket Mounting Bolts IncludedNo
Caliper And Pad Hardware IncludedYes
Caliper FinishE-coat
Caliper ManufacturerAisin
Dust Boots IncludedYes
Housing Cast Numbers40-10 l
Inlet Thread SizeM10-1.0
Package ContentsIncludes brake pad installation hardware w/ banjo bolt & copper c
Piston 1 Outside Diameter (in)1.57
Piston 1 Outside Diameter (mm)40
Wear Sensors IncludedNo

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2003LexusRX300Rear LeftSupplied w/ Mounting Bracket; TechShield 360 (tm)
2002LexusRX300Rear LeftSupplied w/ Mounting Bracket; TechShield 360 (tm)
2001LexusRX300Rear LeftSupplied w/ Mounting Bracket; TechShield 360 (tm)
2000LexusRX300Rear LeftSupplied w/ Mounting Bracket; TechShield 360 (tm)
1999LexusRX300Rear LeftSupplied w/ Mounting Bracket; TechShield 360 (tm)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.